HomeFormats

Every file type Analyser can open.

Analyser reads and identifies 1039 file formats, grouped by category below. Each is read straight from its bytes in your browser - drop a file on the home page to analyse it; nothing is uploaded. A Full badge means the format opens in a dedicated viewer with deep metadata; an ID badge means it is identified and its header metadata is read.

Prefer a focused view? with category filters.

Photo JPG JPEG JIF JFIF PNG GIF WebP HEIC HEIF BMP TIFF AVIF JXL ICO MPO THM
Full
View EXIF, GPS, camera settings, histograms, dominant colours, OCR text, and AI-generation markers in JPG, PNG, HEIC, WebP, GIF, BMP, TIFF, AVIF and JPEG XL images. Detects computational-photo wrappers (Apple Live Photo, Google and Samsung Motion Photo, Ultra HDR gain maps), opens THM movie-thumbnail files, and extracts every embedded image from multi-image files - all sizes in an ICO, both halves of an MPO stereo pair, and every page of a multi-page TIFF.

Per-format guides: .JPG · .JPEG · .JIF · .JFIF · .PNG · .GIF · .WebP · .HEIC · .HEIF · .BMP · .TIFF · .AVIF · .JXL · .ICO · .MPO · .THM

RAW photo RAW ARW CR2 CR3 NEF DNG RAF RW2 ORF PEF SR2 SRW X3F 3FR IIQ MRW NRW RWL CRW GPR FFF MEF MOS KDC DCR DCS ERF SRF
Full
Open camera RAW files from Sony (ARW), Canon (CR2, CR3, CRW), Nikon (NEF, NRW), Fujifilm X-Trans (RAF), Sigma Foveon (X3F), Olympus (ORF), Panasonic (RW2), Pentax (PEF), Adobe DNG and many more. Reads full EXIF and lens data, the true sensor resolution, GPS and histograms, recovers the Sony and Nikon shutter actuation count, and develops the RAW - decoding the sensor to a full-resolution image, or extracting the embedded preview when a true demosaic is not available.

Per-format guides: .RAW · .ARW · .CR2 · .CR3 · .NEF · .DNG · .RAF · .RW2 · .ORF · .PEF · .SR2 · .SRW · .X3F · .3FR · .IIQ · .MRW · .NRW · .RWL · .CRW · .GPR · .FFF · .MEF · .MOS · .KDC · .DCR · .DCS · .ERF · .SRF

RAW sidecars / cinema AAE PP3 COS COF COP DOP NKSC R3D BRAW CRM ARI CINE FPF EIP BAY PXN RWZ
ID
Identify camera RAW edit sidecars - Apple Photos adjustments (AAE), RawTherapee (PP3), Capture One (COS), DxO PhotoLab (DOP) and Nikon NX Studio (NKSC) - reading the applied-edit recipe, plus cinema and rare camera RAW: REDCODE (R3D), Blackmagic (BRAW), Canon Cinema RAW Light (CRM), ARRIRAW (ARI), Phantom CINE and FLIR thermal (FPF).

Per-format guides: .AAE · .PP3 · .COS · .COF · .COP · .DOP · .NKSC · .R3D · .BRAW · .CRM · .ARI · .CINE · .FPF · .EIP · .BAY · .PXN · .RWZ

Images (more) TGA QOI PPM PGM PBM PNM PAM PCX FF FARBFELD WBMP XBM XPM RAS SGI BW HDR DDS EXR JP2 J2K JPF JPX JPC JXR WDP HDP EPS PS WMF EMF EMZ ICNS CUR ANI MNG LOTTIE
ID
Decode and preview extra still-image formats in pure JavaScript - Truevision TGA, QOI, Netpbm (PPM/PGM/PBM), PCX, farbfeld, WBMP, XBM/XPM, Sun Raster and SGI are fully rendered - and read header metadata from codec-heavy formats: Radiance HDR, DirectDraw Surface (DDS) game textures, OpenEXR, JPEG 2000, JPEG XR, EPS/PostScript, Windows WMF/EMF metafiles, Apple ICNS icons, CUR/ANI cursors, MNG and Lottie animations.

Per-format guides: .TGA · .QOI · .PPM · .PGM · .PBM · .PNM · .PAM · .PCX · .FF · .FARBFELD · .WBMP · .XBM · .XPM · .RAS · .SGI · .BW · .HDR · .DDS · .EXR · .JP2 · .J2K · .JPF · .JPX · .JPC · .JXR · .WDP · .HDP · .EPS · .PS · .WMF · .EMF · .EMZ · .ICNS · .CUR · .ANI · .MNG · .LOTTIE

Sound MP3 WAV M4A M4B AAC FLAC OGG OPUS AIFF WMA AMR AC3 DTS MKA
Full
Inspect the waveform, spectrogram, codec, bitrate, channels, and tags of MP3, WAV, FLAC, M4A, AAC, OGG, and Opus audio.

Per-format guides: .MP3 · .WAV · .M4A · .M4B · .AAC · .FLAC · .OGG · .OPUS · .AIFF · .WMA · .AMR · .AC3 · .DTS · .MKA

Lyrics LRC
Full
Parse .lrc timed-lyric files: read the artist/title/album ID tags and every timestamped line.

Per-format guides: .LRC

MIDI MID MIDI
Full
Parse Standard MIDI Files: format, tempo (BPM), time signature, General MIDI instruments, track names, note counts, and duration.

Per-format guides: .MID · .MIDI

Music production ALS ALP FLP RPP LOGIC LOGICX PTX CPR BAND
ID
Identify DAW project files and read version, tempo, and plugin data: Ableton Live (ALS), FL Studio (FLP), Reaper (RPP), Logic Pro, Pro Tools (PTX), and Cubase (CPR).

Per-format guides: .ALS · .ALP · .FLP · .RPP · .LOGIC · .LOGICX · .PTX · .CPR · .BAND

Surround audio EC3 EAC3 TrueHD THD MLP Atmos
ID
Identify Dolby surround codecs - Digital Plus (E-AC-3), TrueHD, MLP, and Atmos - with channel-layout detection (5.1, 7.1).

Per-format guides: .EC3 · .EAC3 · .TrueHD · .THD · .MLP · .Atmos

Audio (more) APE WV TAK TTA OFR DSF DFF MPC CAF RF64 BW64 W64 AU SND VOC BWF SPX AWB QCP 3GA M4R GSM MP2 MP1 SF2 SF3 SFZ DLS RMI MMF GIG RTTTL IMY SAP MOD XM IT S3M STM MTM MED 669 FAR OKT NSF NSFE SPC VGM VGZ GBS AY YM AUP AUP3 PSF
ID
Identify many more audio formats: lossless/hi-res codecs (Monkey’s Audio, WavPack, TAK, True Audio, DSD/SACD, Musepack), pro containers (Core Audio, RF64/BW64, Wave64, Sun AU, Broadcast Wave with timecode), speech/mobile (Speex, AMR-WB, QCP, 3GA, M4R, GSM), MPEG Layer I/II, instrument banks (SoundFont, SFZ, DLS, RIFF MIDI, GigaStudio), ringtones (RTTTL, iMelody, SAP), tracker modules (MOD, XM, IT, S3M, OctaMED, 669, Oktalyzer), chiptunes (NES NSF, SNES SPC, VGM, Game Boy GBS, AY, YM) and Audacity projects.

Per-format guides: .APE · .WV · .TAK · .TTA · .OFR · .DSF · .DFF · .MPC · .CAF · .RF64 · .BW64 · .W64 · .AU · .SND · .VOC · .BWF · .SPX · .AWB · .QCP · .3GA · .M4R · .GSM · .MP2 · .MP1 · .SF2 · .SF3 · .SFZ · .DLS · .RMI · .MMF · .GIG · .RTTTL · .IMY · .SAP · .MOD · .XM · .IT · .S3M · .STM · .MTM · .MED · .669 · .FAR · .OKT · .NSF · .NSFE · .SPC · .VGM · .VGZ · .GBS · .AY · .YM · .AUP · .AUP3 · .PSF

Video MP4 MOV AVI MKV WebM WMV FLV 3GP 3G2 MPG MPEG MTS M2TS TS VOB OGV H264 264 AVC H265 265 HEVC
Full
Read the container, codec, resolution, and frame rate of MP4, MOV, MKV, AVI, and WebM video, step through frames, and extract the audio track. Raw H.264/H.265 elementary streams (.h264/.265) are remuxed to MP4 in-browser so they play too.

Per-format guides: .MP4 · .MOV · .AVI · .MKV · .WebM · .WMV · .FLV · .3GP · .3G2 · .MPG · .MPEG · .MTS · .M2TS · .TS · .VOB · .OGV · .H264 · .264 · .AVC · .H265 · .265 · .HEVC

Editing timeline EDL FCPXML OTIO
Full
Visualise editing timelines exported from Premiere Pro, Final Cut Pro, DaVinci Resolve and Avid: CMX3600 EDL, Final Cut Pro FCPXML and OpenTimelineIO (OTIO). Renders the tracks with clip blocks positioned by timecode, plus durations, clip names and frame rate.

Per-format guides: .EDL · .FCPXML · .OTIO

Subtitles SRT VTT ASS SSA
Full
Parse subtitle cues and timing from SubRip (SRT), WebVTT, and ASS/SSA: cue count, on-screen time, and a full timed cue list.

Per-format guides: .SRT · .VTT · .ASS · .SSA

Subtitles (other) SUB
ID
Identify MicroDVD/SubViewer (SUB) subtitle files. SRT, VTT, and ASS/SSA get full cue parsing (see above).

Per-format guides: .SUB

Video editing AEP AET AEPX PRPROJ PREL VEG VF DRP DRT WFP WSP
ID
Identify and read video-editing project files: Adobe After Effects (AEP, AET, AEPX) - walks the RIFX chunk tree for compositions, layers, effect match-names and asset paths; Adobe Premiere Pro / Elements (PRPROJ, PREL) - sequence, media-item and clip counts plus media paths; Sony / MAGIX VEGAS Pro (VEG, VF); DaVinci Resolve from Blackmagic Design (DRP, DRT); Wondershare Filmora (WFP, WSP); and CapCut drafts (draft_content.json) - canvas resolution, duration, tracks and material counts.

Per-format guides: .AEP · .AET · .AEPX · .PRPROJ · .PREL · .VEG · .VF · .DRP · .DRT · .WFP · .WSP

Video / streaming (more) M3U8 M3U MPD ISM ISMC F4M ASX WPL XSPF PLS MXF GXF LXF DV DIF ASF DVR-MS RM RMVB DIVX F4V INSV INSP LRV GIFV IVF Y4M M2V M1V MPV H264 H265 HEVC AVC OBU M2P M2T TRP WTV OGM NUT DPX CIN DAV YUV
ID
Inspect streaming manifests and video containers: HLS/DASH/Smooth Streaming/HDS manifests and playlists; pro/broadcast MXF/GXF/LXF/DV; ASF/.dvr-ms and RealMedia; DivX/F4V/Insta360/GoPro proxies/GIFV; raw elementary streams (IVF, Y4M, MPEG-1/2, H.264/H.265 SPS, AV1 OBU); MPEG program/transport and PVR/DVB recordings; Windows Recorded TV, Ogg Media, NUT; DPX/Cineon/Dahua/.yuv identified.

Per-format guides: .M3U8 · .M3U · .MPD · .ISM · .ISMC · .F4M · .ASX · .WPL · .XSPF · .PLS · .MXF · .GXF · .LXF · .DV · .DIF · .ASF · .DVR-MS · .RM · .RMVB · .DIVX · .F4V · .INSV · .INSP · .LRV · .GIFV · .IVF · .Y4M · .M2V · .M1V · .MPV · .H264 · .H265 · .HEVC · .AVC · .OBU · .M2P · .M2T · .TRP · .WTV · .OGM · .NUT · .DPX · .CIN · .DAV · .YUV

Adobe PSD PSB AI INDD INDT IDML AEP AEPX AET PRPROJ PREL MOGRT SESX XD FLA SWF XMP LRtemplate LRcat ACV ACO ASL ABR GRD PAT
ID
Identify Adobe project files and read their metadata: Photoshop (PSD, PSB), Illustrator (AI), InDesign (INDD), After Effects (AEP, AEPX, AET) with composition / layer / effect and asset extraction, Premiere Pro and Elements (PRPROJ, PREL) with sequence and media counts, XD, Animate (FLA), and Lightroom.

Per-format guides: .PSD · .PSB · .AI · .INDD · .INDT · .IDML · .AEP · .AEPX · .AET · .PRPROJ · .PREL · .MOGRT · .SESX · .XD · .FLA · .SWF · .XMP · .LRtemplate · .LRcat · .ACV · .ACO · .ASL · .ABR · .GRD · .PAT

Design FIG Sketch afphoto afdesign afpub Procreate XCF KRA PDN SPP SBSAR SBS
ID
Identify design-app files: Figma (FIG), Sketch, Affinity Photo/Designer/Publisher, Procreate, GIMP (XCF), Krita (KRA), Paint.NET, and Substance.

Per-format guides: .FIG · .Sketch · .afphoto · .afdesign · .afpub · .Procreate · .XCF · .KRA · .PDN · .SPP · .SBSAR · .SBS

PDF PDF
Full
View pages, extract text and embedded images, run OCR, and read the metadata of PDF documents.

Per-format guides: .PDF

Office docs DOCX DOCM DOTX DOTM XLSX XLSM XLTX XLTM PPTX PPTM PPSX PPSM POTX POTM ODT OTT FODT ODS OTS FODS ODP OTP FODP ODG OTG FODG SXW SXC SXD DOC XLS PPT EPUB
Full
Open and read Microsoft Office documents - modern Word, Excel and PowerPoint (DOCX, XLSX, PPTX), their template, macro-enabled and slideshow variants (DOTX, XLTX, POTX, DOCM, XLSM, PPTM, PPSX), and the legacy 97-2003 binaries (DOC, XLS, PPT) - plus the OpenDocument family in every shape: zipped and flat single-XML text, spreadsheets, presentations and graphics (ODT, ODS, ODP, ODG, FODT, FODS), templates (OTT, OTS, OTP, OTG), legacy StarOffice (SXW, SXC, SXD), and EPUB e-books, shown as page previews with selectable text, tables, sheets and slides.

Per-format guides: .DOCX · .DOCM · .DOTX · .DOTM · .XLSX · .XLSM · .XLTX · .XLTM · .PPTX · .PPTM · .PPSX · .PPSM · .POTX · .POTM · .ODT · .OTT · .FODT · .ODS · .OTS · .FODS · .ODP · .OTP · .FODP · .ODG · .OTG · .FODG · .SXW · .SXC · .SXD · .DOC · .XLS · .PPT · .EPUB

Text & markup RTF ABW FB2 HWPX MHT MHTML DITA DITAMAP TEI JATS NXML RST ADOC ORG Textile TeX LaTeX BIB
Full
Open lightweight document and markup formats as selectable page previews: Rich Text Format (RTF, control words stripped to readable prose), AbiWord (ABW), FictionBook ebooks (FB2), Hangul HWPX, and MHTML web archives (the saved HTML rendered with scripts removed), plus markup and typesetting source - DITA, TEI, JATS journal XML, reStructuredText, AsciiDoc, Org-mode, Textile, TeX/LaTeX and BibTeX - shown with every page selectable and copyable.

Per-format guides: .RTF · .ABW · .FB2 · .HWPX · .MHT · .MHTML · .DITA · .DITAMAP · .TEI · .JATS · .NXML · .RST · .ADOC · .ORG · .Textile · .TeX · .LaTeX · .BIB

Apple iWork Pages Numbers Keynote
Full
Open Apple iWork documents - Pages (word processing and page layout), Numbers (spreadsheets) and Keynote (presentations, .key) - by showing the QuickLook preview Apple embeds in the file: a PDF rendered page by page, or the preview image. Reads the document type and the iWork app version that wrote it. The document body itself is stored in Apple’s undocumented Snappy / Protocol-Buffer .iwa format, which is not re-rendered.

Per-format guides: .Pages · .Numbers · .Keynote

Fonts TTF OTF WOFF WOFF2 TTC
ID
Preview fonts and read their metadata: TrueType (TTF), OpenType (OTF), web fonts (WOFF, WOFF2), and collections (TTC), with variable-axis animation.

Per-format guides: .TTF · .OTF · .WOFF · .WOFF2 · .TTC

eBooks MOBI AZW AZW3 DJVU
ID
Identify e-book files: Kindle (MOBI, AZW, AZW3) and DjVu. FictionBook (FB2) now opens in a full reader (see Text & markup above).

Per-format guides: .MOBI · .AZW · .AZW3 · .DJVU

Documents / ebooks (more) CBZ CBR CBT CB7 XPS OXPS HWP FB3 IBOOKS SCRIV VSDX RMD QMD RTFD WARC MAFF DVI CHM WPD QXD PMD LIT KFX
ID
Open documents, ebooks and publishing files beyond Office: comic books (CBZ/CBT with ComicInfo + first-page preview; CBR/CB7 identified), Microsoft XPS, FictionBook FB3, iBooks, Scrivener, Visio VSDX, R Markdown/Quarto, RTFD, WARC/MAFF web archives, TeX DVI, legacy Hangul HWP, and WordPerfect/QuarkXPress/PageMaker identification.

Per-format guides: .CBZ · .CBR · .CBT · .CB7 · .XPS · .OXPS · .HWP · .FB3 · .IBOOKS · .SCRIV · .VSDX · .RMD · .QMD · .RTFD · .WARC · .MAFF · .DVI · .CHM · .WPD · .QXD · .PMD · .LIT · .KFX

Notebooks & data IPYNB HAR JSON5 JSONC Hjson
Full
Open and read structured developer data files: Jupyter notebooks (IPYNB) rendered cell by cell with their markdown, code and captured outputs (text and images); HAR network captures shown as a request table with status, type, size and timing; and the JSON supersets JSON5, JSONC and Hjson shown as selectable source with an expandable value tree.

Per-format guides: .IPYNB · .HAR · .JSON5 · .JSONC · .Hjson

Data CSV TSV SVG
Full
Preview CSV and TSV tables with per-column stats, and view or rasterise SVG vector graphics.

Per-format guides: .CSV · .TSV · .SVG

Web / code HTML CSS JS TS TSX JSX JSON YAML XML MD
Full
Preview and inspect HTML, CSS, JavaScript, TypeScript, JSON, YAML, XML, and Markdown source files.

Per-format guides: .HTML · .CSS · .JS · .TS · .TSX · .JSX · .JSON · .YAML · .XML · .MD

Git objects PACK IDX
Full
Open git repository internals with no git binary: loose objects (the zlib-compressed blob, tree, commit and tag files under .git/objects), pack files (.pack) and pack indexes (.idx). Inflates and parses each object - showing its type, size and SHA-1, rendering commit and tag messages, listing tree entries, and handing blob contents to the analyser.

Per-format guides: .PACK · .IDX

Databases SQLite SQLite3 DB DB3 MDB ACCDB SQL SQLite-WAL SQLite-SHM DB-WAL DB-SHM
ID
Open SQLite databases (.sqlite/.db/.sqlite3) and read their full schema in-browser - every table with its columns and row counts, views, indexes, triggers, the CREATE-statement DDL, and a sample of the largest table. Reads the WAL-mode sidecars too: the Write-Ahead Log (-wal) - page size, salts, frame and committed-transaction counts, and the pages it changed - and the shared-memory index (-shm) - valid frame count, database size and checkpoint progress. Also parses .sql dumps (dialect, tables, columns, INSERT counts) and identifies Microsoft Access (MDB, ACCDB).

Per-format guides: .SQLite · .SQLite3 · .DB · .DB3 · .MDB · .ACCDB · .SQL · .SQLite-WAL · .SQLite-SHM · .DB-WAL · .DB-SHM

Config TOML INI ENV CONF CFG PROPERTIES
ID
Identify configuration files: TOML, INI, .env, CONF, CFG, and Java properties.

Per-format guides: .TOML · .INI · .ENV · .CONF · .CFG · .PROPERTIES

Logs LOG
ID
Identify log files and their origin - Apache, Nginx, syslog, Python, Java/Log4j, and Android logcat.

Per-format guides: .LOG

Developer / data JWT JSONL NDJSON DIFF PATCH WASM CLASS NPY Safetensors GGUF MAP SQL SLN CSPROJ VBPROJ FSPROJ VCXPROJ Gradle TF TFState EditorConfig PROTO GraphQL GQL SARIF PYC PLIST
ID
Identify and read metadata from developer and data files: JWT tokens (header + claims + expiry), WebAssembly, Java class files, NumPy/Safetensors/GGUF model files, source maps, SQL dumps, Visual Studio/.NET projects, Terraform, Protobuf, GraphQL, SARIF, Python bytecode, and Apple property lists (XML + binary). Jupyter notebooks (IPYNB) and HAR captures now open in a full viewer - see Notebooks & data above.

Per-format guides: .JWT · .JSONL · .NDJSON · .DIFF · .PATCH · .WASM · .CLASS · .NPY · .Safetensors · .GGUF · .MAP · .SQL · .SLN · .CSPROJ · .VBPROJ · .FSPROJ · .VCXPROJ · .Gradle · .TF · .TFState · .EditorConfig · .PROTO · .GraphQL · .GQL · .SARIF · .PYC · .PLIST

3D model STL OBJ PLY OFF STEP STP IGES IGS BREP 3MF AMF
Full
View STL, OBJ, PLY, OFF, STEP, IGES, BREP, 3MF and AMF models in an interactive WebGL viewer with triangle count, bounding box, surface area and volume. STEP/IGES/BREP are tessellated with OpenCASCADE and STEP shows its originating CAD system, version and AP203/214/242 protocol; 3MF and AMF let you inspect each model and assembly on the build plate individually.

Per-format guides: .STL · .OBJ · .PLY · .OFF · .STEP · .STP · .IGES · .IGS · .BREP · .3MF · .AMF

Diagrams DRAWIO DXF
Full
Render 2D vector diagrams to a preview: draw.io / diagrams.net (DRAWIO) files - decoding the mxGraph model, inline or compressed, and drawing its boxes, ellipses, diamonds and connectors - and AutoCAD DXF drawings, parsing the ASCII ENTITIES section (lines, circles, arcs, polylines and text) and drawing them the right way up.

Per-format guides: .DRAWIO · .DXF

CAD DWG DWT SLDPRT SLDASM SLDDRW SLDREG SVAP SVPJ F3D F3Z IPT IAM IDW 3DM SKP 3DS MAX C4D HIP ZPR ZTL MA MB CATPART CATPRODUCT PRT ASM BRD SCH KiCad_pcb GH GHX
ID
Identify CAD files and read header metadata: AutoCAD DWG (DXF now opens as a 2D drawing preview - see Diagrams), SolidWorks (SLDPRT, SLDASM, plus .sldreg Settings Wizard backups - release year, settings groups and the saved registry keys - and SOLIDWORKS Visualize .svap appearances and .svpj projects, opened as the ZIP packages they are), Fusion 360 (F3D), Inventor (IPT, IAM), Rhino (3DM) and Grasshopper (GH, GHX), SketchUp (SKP), 3ds Max, Cinema 4D, Houdini, ZBrush, Maya, CATIA, Eagle, and KiCad.

Per-format guides: .DWG · .DWT · .SLDPRT · .SLDASM · .SLDDRW · .SLDREG · .SVAP · .SVPJ · .F3D · .F3Z · .IPT · .IAM · .IDW · .3DM · .SKP · .3DS · .MAX · .C4D · .HIP · .ZPR · .ZTL · .MA · .MB · .CATPART · .CATPRODUCT · .PRT · .ASM · .BRD · .SCH · .KiCad_pcb · .GH · .GHX

CAD exchange SAT X_T X_B
ID
Identify neutral CAD exchange formats: Parasolid (X_T, X_B) and ACIS (SAT). STEP and IGES get a full 3D viewer - see the 3D model section.

Per-format guides: .SAT · .X_T · .X_B

3D / printing FBX glTF GLB USDZ USD USDA BLEND
ID
Identify 3D and 3D-printing files: FBX, glTF/GLB, USD/USDZ, and Blender (BLEND). OBJ, PLY, OFF, 3MF and AMF get a full 3D viewer - see the 3D model section.

Per-format guides: .FBX · .glTF · .GLB · .USDZ · .USD · .USDA · .BLEND

CNC / 3D print GCODE GCO NC NGC TAP CNC
ID
Analyse G-code for 3D printers and CNC machines - detect the slicer or CAM tool, machine and controller, toolpath, and print or cut dimensions (Prusa, Bambu, Cura, Fusion 360, Mastercam, GRBL, Fanuc, Haas).

Per-format guides: .GCODE · .GCO · .NC · .NGC · .TAP · .CNC

Engineering CDP
ID
Identify CDP files - either CDP4 (COMET) concurrent-design models from the ESA systems-engineering toolset, or Criterium DecisionPlus decision-analysis models.

Per-format guides: .CDP

Science / medical / engineering DCM DICOM NII FIT TCX FITS FTS FASTA FA FNA FAA FASTQ FQ MOL SDF MOL2 CIF MMCIF XYZ GBR GBL GTL DRL XLN CIR SP SPI SPICE EDF BDF JDX DX SAV DTA SAS7BDAT VTK VTU VTP VTI SEGY SGY BAM SAM BCF HEA
ID
Open scientific, medical and engineering files: DICOM scans, NIfTI brain volumes, Garmin FIT/TCX activities, FITS astronomy frames, FASTA/FASTQ sequences, chemistry structures (MOL/SDF/MOL2/CIF/XYZ), Gerber/Excellon PCB data, SPICE netlists, EDF/BDF biosignals, JCAMP-DX spectra, SPSS/Stata/SAS datasets and VTK/ParaView meshes - metadata extracted entirely in-browser.

Per-format guides: .DCM · .DICOM · .NII · .FIT · .TCX · .FITS · .FTS · .FASTA · .FA · .FNA · .FAA · .FASTQ · .FQ · .MOL · .SDF · .MOL2 · .CIF · .MMCIF · .XYZ · .GBR · .GBL · .GTL · .DRL · .XLN · .CIR · .SP · .SPI · .SPICE · .EDF · .BDF · .JDX · .DX · .SAV · .DTA · .SAS7BDAT · .VTK · .VTU · .VTP · .VTI · .SEGY · .SGY · .BAM · .SAM · .BCF · .HEA

3D / CAD / point clouds (more) GLTF VOX DAE ZAE USDC X3D WRL VRML LWO LWS MD2 MD3 MDL VRM JT LAS LAZ PCD PTS E57 IFC IFCZIP SPLAT SPZ
ID
Header and metadata extraction for 3D meshes, voxels, BIM, point clouds and Gaussian splats: Wavefront OBJ, Stanford PLY, OFF, glTF, AMF, MagicaVoxel VOX, COLLADA DAE/ZAE, USD crate, X3D/VRML, LightWave LWO/LWS, Quake MD2/MD3/MDL, VRM avatars, Siemens JT, LAS/LAZ/PCD/PTS/E57 LiDAR clouds, IFC BIM, and .splat/.spz - vertex/face/point counts, bounding boxes, units and authoring tool.

Per-format guides: .GLTF · .VOX · .DAE · .ZAE · .USDC · .X3D · .WRL · .VRML · .LWO · .LWS · .MD2 · .MD3 · .MDL · .VRM · .JT · .LAS · .LAZ · .PCD · .PTS · .E57 · .IFC · .IFCZIP · .SPLAT · .SPZ

Archives ZIP RAR 7Z TAR GZ TGZ BZ2 XZ ZST LZ4 LZMA Z
Full
Browse the file tree and compression details of archives without extracting them: ZIP in pure JavaScript, and RAR, 7z, TAR and compressed tarballs (.tar.gz / .tgz, .tar.xz, .tar.zst, .tar.bz2) through a bundled libarchive engine - click any file inside to analyse it. A single compressed stream (.gz, .xz, .zst, .lz4, .lzma, .Z) is decompressed so the file within can be opened; bare .bz2 streams are identified only.

Per-format guides: .ZIP · .RAR · .7Z · .TAR · .GZ · .TGZ · .BZ2 · .XZ · .ZST · .LZ4 · .LZMA · .Z

Archives (packages) CPIO A WHL NUPKG CRX XPI VSIX ASAR APPX MSIX APKG CONDA DEB RPM GEM CAB ACE ARJ LZH LHA ZOO ARC
ID
Read software packages and Unix archive streams: Python wheels, NuGet, Chrome/Firefox/VS Code extensions, Electron ASAR, Windows APPX/MSIX, Debian (DEB), RPM, RubyGems, conda, Anki, Microsoft CAB, cpio and ar - showing name, version, dependencies and the file tree.

Per-format guides: .CPIO · .A · .WHL · .NUPKG · .CRX · .XPI · .VSIX · .ASAR · .APPX · .MSIX · .APKG · .CONDA · .DEB · .RPM · .GEM · .CAB · .ACE · .ARJ · .LZH · .LHA · .ZOO · .ARC

Map data GPX KML GeoJSON
Full
Parse GPX tracks, KML placemarks, and GeoJSON features - counts, distance, elevation, time span, and bounds - plotted on an OpenStreetMap map.

Per-format guides: .GPX · .KML · .GeoJSON

GIS / mapping SHP KMZ
ID
Identify geographic files: Shapefile (SHP) and zipped Google Earth (KMZ). GPX, KML, and GeoJSON get full parsing + a map (see above).

Per-format guides: .SHP · .KMZ

Geospatial / GIS TopoJSON OSM SHP SHX DBF PRJ CPG PGW TFW JGW WLD GML NMEA IGC TAB MIF VRT PMTiles DT0 DT1 DT2 DTED ASC HGT GRIB GRB GRIB2 CDF NC4 PBF GPKG MBTiles SID ECW GDB
ID
Inspect geospatial and GIS files without a map: TopoJSON, OpenStreetMap XML, Esri Shapefile siblings (SHP/SHX/DBF/PRJ/CPG), world files, GML, NMEA GPS logs, IGC flight logs, MapInfo TAB/MIF, GDAL VRT, PMTiles, DTED terrain, Esri ASCII grids and SRTM .hgt - surfacing CRS/EPSG, feature/record counts, bounding boxes and elevation ranges. GRIB/NetCDF/GeoPackage/MBTiles/MrSID/ECW identified.

Per-format guides: .TopoJSON · .OSM · .SHP · .SHX · .DBF · .PRJ · .CPG · .PGW · .TFW · .JGW · .WLD · .GML · .NMEA · .IGC · .TAB · .MIF · .VRT · .PMTiles · .DT0 · .DT1 · .DT2 · .DTED · .ASC · .HGT · .GRIB · .GRB · .GRIB2 · .CDF · .NC4 · .PBF · .GPKG · .MBTiles · .SID · .ECW · .GDB

Game engines UNITYPACKAGE UASSET UMAP GODOT TSCN TRES
ID
Identify game-engine assets: Unity (UNITYPACKAGE), Unreal Engine (UASSET, UMAP), and Godot (TSCN, TRES).

Per-format guides: .UNITYPACKAGE · .UASSET · .UMAP · .GODOT · .TSCN · .TRES

Game saves BEPIS
ID
Read ULTRAKILL save files (BEPIS) - decoding the .NET BinaryFormatter stream into your actual progress: money and unlocked weapon variants, furthest level and difficulty reached, per-level ranks, secrets and best kills/style/time, and your Cyber Grind high score (wave, kills, style and time).

Per-format guides: .BEPIS

Valve / Steam VDF ACF
ID
Parse Valve KeyValues files (VDF) and Steam app manifests (ACF) - appmanifest, libraryfolders, loginusers, and config - surfacing the App ID, name, install dir, size on disk, and the full key tree.

Per-format guides: .VDF · .ACF

Game ROMs / assets NES GB GBC GBA SFC SMC NDS DSI Z64 N64 V64 GEN SMD IPS BPS UPS PPF WAD NBT MCWORLD ASE PCK PAK PK3 BSP VPK VTF VMT KTX KTX2 TMX TMJ LOVE PACKAGE MPQ CIA NSP XCI
ID
Inspect game ROMs, patches and engine assets: iNES/NES2.0, Game Boy/Color/Advance, SNES, Nintendo DS/DSi, Nintendo 64, and Sega Genesis ROM headers (title, mapper, region, checksum); IPS/BPS/UPS/PPF patches; Doom WAD lumps; Minecraft NBT/schematics and Bedrock bundles; Aseprite sprites; Godot .pck; Quake/id Tech PAK/PK3; Source BSP/VPK/VTF/VMT; KTX/KTX2 textures; Tiled maps; LÖVE games; PICO-8 carts - plus MPQ, 3DS/Switch and Ren’Py/RPG Maker identification.

Per-format guides: .NES · .GB · .GBC · .GBA · .SFC · .SMC · .NDS · .DSI · .Z64 · .N64 · .V64 · .GEN · .SMD · .IPS · .BPS · .UPS · .PPF · .WAD · .NBT · .MCWORLD · .ASE · .PCK · .PAK · .PK3 · .BSP · .VPK · .VTF · .VMT · .KTX · .KTX2 · .TMX · .TMJ · .LOVE · .PACKAGE · .MPQ · .CIA · .NSP · .XCI

Email EML EMLX MBOX
Full
Open email messages and mailboxes in the browser: single messages (EML, Apple Mail EMLX) and whole mailboxes (MBOX). Reads From/To/Subject/Date, counts the Received relay hops, surfaces SPF/DKIM/DMARC authentication results, lists attachments, and renders the message body (HTML sanitised with scripts and remote content removed, or plain text).

Per-format guides: .EML · .EMLX · .MBOX

Certificates CRT CER PEM DER
ID
Identify and decode X.509 security certificates (CRT, CER, PEM, DER) - subject, issuer, validity dates, and key details.

Per-format guides: .CRT · .CER · .PEM · .DER

Calendar / contacts ICS ICAL IFB VCF VCARD VCS LDIF CONTACT MSG PST OST NSF EDB DBX
ID
Open personal-information files: iCalendar .ics/.ical and .vcs (events, times, recurrence, organiser/attendees), vCard .vcf contacts (fields + inline base64 photo), LDIF directory exports and Windows .contact - with Outlook .msg/.pst, IBM Notes .nsf, Exchange .edb and Outlook Express .dbx identified. Email messages (.eml/.emlx/.mbox) now open in a full viewer - see Email above.

Per-format guides: .ICS · .ICAL · .IFB · .VCF · .VCARD · .VCS · .LDIF · .CONTACT · .MSG · .PST · .OST · .NSF · .EDB · .DBX

Security / keys / certs KEY PUB P8 CSR CRL P7B P7C PPK OVPN WG JKS KEYSTORE JCEKS MOBILECONFIG MOBILEPROVISION REG PCAP PCAPNG P12 PFX KDBX EVTX
ID
Inspect security and crypto files: PEM private/public keys (RSA/EC/Ed25519, PKCS#1 vs PKCS#8, encryption), OpenSSH .pub with SHA-256 fingerprint, PuTTY .ppk, PKCS#10 CSR, X.509 CRL, PKCS#7 bundles, OpenVPN/WireGuard configs, Java KeyStores, Apple .mobileconfig/.mobileprovision, Windows .reg (with autorun flagging), and pcap/pcapng captures - warning when a private key or secret is present.

Per-format guides: .KEY · .PUB · .P8 · .CSR · .CRL · .P7B · .P7C · .PPK · .OVPN · .WG · .JKS · .KEYSTORE · .JCEKS · .MOBILECONFIG · .MOBILEPROVISION · .REG · .PCAP · .PCAPNG · .P12 · .PFX · .KDBX · .EVTX

Text art NFO
Full
Open scene-release NFO files decoded from their native CP437 (IBM PC OEM) code page, so the box-drawing and block-character ASCII art renders the way it was authored instead of as garbled text.

Per-format guides: .NFO

Disk images ISO IMG VHD VHDX VMDK QCOW2 VDI
ID
Identify disk and virtual-machine images: ISO, VHD/VHDX (Hyper-V), VMDK (VMware), QCOW2 (QEMU), and VDI (VirtualBox). For raw IMG images it decodes the partition table (MBR/GPT) and the first volume's filesystem - FAT16/32, NTFS, exFAT - with label, cluster size, and volume size.

Per-format guides: .ISO · .IMG · .VHD · .VHDX · .VMDK · .QCOW2 · .VDI

Recordings REC
ID
Identify REC files, telling apart PVR/DVR video recordings (MPEG-TS / MPEG program stream) from data-recovery session files (GetDataBack, ReclaiMe) and reading their details.

Per-format guides: .REC

Executables EXE DLL MSI APK IPA DMG AppImage
ID
Identify and read metadata from programs and installers: Windows (EXE, DLL, MSI), Android (APK), iOS (IPA), macOS (DMG), and Linux (AppImage). For Android APKs it decodes the binary AndroidManifest.xml - package name, version, min/target SDK, the full permission and feature list, launcher activity, signing scheme (v1/v2/v3) and the native-code ABIs.

Per-format guides: .EXE · .DLL · .MSI · .APK · .IPA · .DMG · .AppImage

Camera catalog CTG
ID
Identify and decode Canon camera catalog files (CTG) - the DCIM index a Canon camera keeps to track each folder: the catalogued folder path, folder number, recorded-shot count, and photo / movie / voice-memo entry counts. Holds no image data.

Per-format guides: .CTG

Shortcuts LNK URL WEBLOC
ID
Decode shortcut files: Windows shortcuts (LNK) - target path, arguments, working directory, icon, hotkey, window state, and target timestamp - plus internet shortcuts (URL) and macOS web shortcuts (WEBLOC), surfacing the URL or path they point to.

Per-format guides: .LNK · .URL · .WEBLOC

Other TORRENT PART CRDOWNLOAD
ID
Identify BitTorrent files (TORRENT) and their file list, plus partial or incomplete downloads (PART, CRDOWNLOAD).

Per-format guides: .TORRENT · .PART · .CRDOWNLOAD

Disk images / firmware OVF OVA VBOX VMX CUE CCD NRG MDS MDF HEX SREC S19 S28 S37 MOT UF2 ELF AXF O SO DTB DTBO UIMAGE GPT MBR EXT4 EXT SQUASHFS SFS CRAMFS ROMFS WIM SWM ESD EWF JFFS2 UBIFS YAFFS2 ISZ CDI VMSN VMEM
ID
Inspect virtual-machine descriptors (VMware .vmx, VirtualBox .vbox, OVF/OVA), disc images (Nero .nrg, Alcohol .mds/.mdf, CloneCD), embedded firmware (Intel HEX, Motorola S-record, UF2, ELF/AXF, Device Tree Blobs, U-Boot uImage), partition tables (MBR/GPT with GUIDs), Linux filesystem superblocks (ext2/3/4, SquashFS, cramfs, romfs) and Windows imaging (WIM/ESD) - reading headers directly, no upload.

Per-format guides: .OVF · .OVA · .VBOX · .VMX · .CUE · .CCD · .NRG · .MDS · .MDF · .HEX · .SREC · .S19 · .S28 · .S37 · .MOT · .UF2 · .ELF · .AXF · .O · .SO · .DTB · .DTBO · .UIMAGE · .GPT · .MBR · .EXT4 · .EXT · .SQUASHFS · .SFS · .CRAMFS · .ROMFS · .WIM · .SWM · .ESD · .EWF · .JFFS2 · .UBIFS · .YAFFS2 · .ISZ · .CDI · .VMSN · .VMEM

System / misc OPML RSS ATOM DESKTOP SERVICE CRASH AB JOB POL SCR DS_STORE THUMBSDB DSYM DWARF SDB
ID
Inspect OS and system files: OPML subscription lists, RSS/Atom feeds, Linux .desktop launchers and systemd .service units, Apple .crash reports, Android .ab backups, Windows Task Scheduler .job, Group Policy Registry.pol, and .scr screensaver PE headers, plus identification of .DS_Store, Thumbs.db, dSYM/DWARF and shim .sdb. Scene .nfo ASCII art now opens in a CP437 viewer - see Text art above.

Per-format guides: .OPML · .RSS · .ATOM · .DESKTOP · .SERVICE · .CRASH · .AB · .JOB · .POL · .SCR · .DS_STORE · .THUMBSDB · .DSYM · .DWARF · .SDB

Developer / data (more) LOCK PB MsgPack MPK BSON CBOR PKL Pickle NPZ JAR WAR EAR FBS Thrift CapnProto HCL MAT RDB Arrow Feather Parquet ORC DESC DUMP
ID
Identify and read developer and data-serialisation files: dependency lockfiles (npm/Yarn/pnpm/Cargo/Poetry/Bundler/Composer - locked-package count), binary serialisations (MessagePack, CBOR, BSON, raw Protobuf messages and descriptor sets), Python pickles with a security note, NumPy .npz and Java jar/war/ear archives, IDL schemas (FlatBuffers/Thrift/Cap n Proto/HCL), MATLAB MAT-files, Redis RDB dumps and columnar big-data containers (Apache Arrow/Feather, Parquet, ORC). The JSON supersets JSON5/JSONC/Hjson now open in a full viewer - see Notebooks & data above.

Per-format guides: .LOCK · .PB · .MsgPack · .MPK · .BSON · .CBOR · .PKL · .Pickle · .NPZ · .JAR · .WAR · .EAR · .FBS · .Thrift · .CapnProto · .HCL · .MAT · .RDB · .Arrow · .Feather · .Parquet · .ORC · .DESC · .DUMP

Archives (more) XAR PKG MPKG MSU SNAP Flatpak SIT SITX LZO BR JNLP TLZ TBZ TZ
ID
Open more archives, packages and installers: macOS XAR/.pkg/.mpkg installers (member list), Windows .msu updates (CAB), Snap SquashFS packages, Flatpak bundles, StuffIt (.sit/.sitx), lzop (.lzo) and Brotli (.br) streams, Java Web Start (.jnlp), and the .tlz/.tbz/.tz compressed-tarball shorthands.

Per-format guides: .XAR · .PKG · .MPKG · .MSU · .SNAP · .Flatpak · .SIT · .SITX · .LZO · .BR · .JNLP · .TLZ · .TBZ · .TZ

3D / CAD (more) DRC KSplat U3D 3DXML X QB Wings RVT RFA RTE RFT PAR PSM PWD NWD NWF NWC Model EXP DLV Session CL3 CLR TZF VSD
ID
Identify more 3D, CAD and scene files: Google Draco compressed meshes, Gaussian splats (KSplat), Universal 3D, Dassault 3DXML, DirectX .x models, Qubicle voxels, Wings3D, Autodesk Revit (RVT/RFA and templates, build version from BasicFileInfo), Siemens Solid Edge, Navisworks, legacy CATIA V4, terrestrial-scanner point clouds (FARO/Trimble) and legacy binary Visio (.vsd).

Per-format guides: .DRC · .KSplat · .U3D · .3DXML · .X · .QB · .Wings · .RVT · .RFA · .RTE · .RFT · .PAR · .PSM · .PWD · .NWD · .NWF · .NWC · .Model · .EXP · .DLV · .Session · .CL3 · .CLR · .TZF · .VSD

Disk images / firmware (more) TRX DFU FD ROM UBI SIMG ITB DSK IMA VFD VMSD NVRAM PVM HDD MF VBK
ID
Identify and read more disk images, firmware and VM files: TRX router firmware, USB DFU images, UEFI/BIOS flash volumes (.fd/.rom), Linux UBI volumes, Android sparse images (.simg), U-Boot FIT (.itb), raw floppy images (.dsk/.ima/.vfd with FAT boot sector), VMware snapshot metadata and NVRAM, Parallels VMs and disks (.pvm/.hdd), OVF manifests (.mf) and Veeam backups (.vbk).

Per-format guides: .TRX · .DFU · .FD · .ROM · .UBI · .SIMG · .ITB · .DSK · .IMA · .VFD · .VMSD · .NVRAM · .PVM · .HDD · .MF · .VBK

Game assets (more) Assets Bundle Resource UTOC UCAS UEXP UMD CSO CHD FSB Bank BNK WEM Spine Skel Atlas YYP YY GMX MCA MCR MCTemplate 3DSX A78 A26 LNX J64 PCE GG SMS WS WSC W3X W3M RPYC RVData2 RXData Pyxel LDtk TIC XDelta Basis SRM State DSV DSM VBM FM2
ID
Identify and read more game and emulator files: Unity asset bundles, Unreal cooked assets, CISO/CHD disc images, FMOD/Wwise sound banks, Spine skeletons and atlases, GameMaker/LDtk/TIC-80 projects, Minecraft Anvil regions, Warcraft III maps, Ren Py and RPG Maker data, extra console ROMs (Atari, PC Engine, Master System/Game Gear, WonderSwan, 3DS homebrew), xdelta/Basis patches and emulator saves and movies.

Per-format guides: .Assets · .Bundle · .Resource · .UTOC · .UCAS · .UEXP · .UMD · .CSO · .CHD · .FSB · .Bank · .BNK · .WEM · .Spine · .Skel · .Atlas · .YYP · .YY · .GMX · .MCA · .MCR · .MCTemplate · .3DSX · .A78 · .A26 · .LNX · .J64 · .PCE · .GG · .SMS · .WS · .WSC · .W3X · .W3M · .RPYC · .RVData2 · .RXData · .Pyxel · .LDtk · .TIC · .XDelta · .Basis · .SRM · .State · .DSV · .DSM · .VBM · .FM2

Documents / publishing (more) SLA SCD WPS WPT WRI DOT SDW SDC SDD SNB LRF LRX TCR CBA FM Book AWT PM6 P65 PT6 ADF
ID
Identify and read more document, ebook and publishing files: Scribus (.sla/.scd version, pages, fonts), MS Works and Windows Write, Word 97 templates (.dot), StarOffice 5.x binary docs, Shanda Bambook and Sony BBeB (.lrf/.lrx) ebooks, FrameMaker, document templates and legacy PageMaker.

Per-format guides: .SLA · .SCD · .WPS · .WPT · .WRI · .DOT · .SDW · .SDC · .SDD · .SNB · .LRF · .LRX · .TCR · .CBA · .FM · .Book · .AWT · .PM6 · .P65 · .PT6 · .ADF

Email / contacts (more) OLM OFT P7M P7S MSF MAB MBX TOC VMG VNT XCAL JCAL XCARD JCARD LDI PAB WAB ABBU
ID
Identify and read more email, calendar and contact files: Outlook for Mac archives (.olm) and templates (.oft), S/MIME .p7m/.p7s, Mozilla Mork stores (.msf/.mab), Eudora/Outlook Express mailboxes (.mbx/.toc), phone backups (.vmg SMS, .vnt notes), XML/JSON iCalendar and vCard (.xcal/.jcal/.xcard/.jcard), LDIF (.ldi) and legacy address books (.pab/.wab/.abbu).

Per-format guides: .OLM · .OFT · .P7M · .P7S · .MSF · .MAB · .MBX · .TOC · .VMG · .VNT · .XCAL · .JCAL · .XCARD · .JCARD · .LDI · .PAB · .WAB · .ABBU

Security / forensics (more) PGP GPG SIG EVT YAR YARA RULES STIX IOC SAZ 1PUX OPVault Keychain AFF AFF4 KDB PVK
ID
Identify and read more security and forensics files: OpenPGP messages/keys/signatures (.pgp/.gpg/.sig - armor type, packet walk, key algorithm and user ID, secret-key warning), YARA rules, Snort/Suricata IDS rules, STIX/OpenIOC threat intel, Fiddler captures (.saz), 1Password exports (.1pux), Apple Keychain, KeePass 1.x (.kdb), Microsoft keys (.pvk) and AFF/AFF4 forensic images.

Per-format guides: .PGP · .GPG · .SIG · .EVT · .YAR · .YARA · .RULES · .STIX · .IOC · .SAZ · .1PUX · .OPVault · .Keychain · .AFF · .AFF4 · .KDB · .PVK

Science / engineering (more) RDS RData RDA AB1 POSCAR CUBE XSF CDX CDXML ABF TDMS VHDR VMRK CNT EEG SET VTS VTR NET MSH INP CDB WFM
ID
Identify and read more scientific, medical and engineering files: R serialized data (RDS/RData), ABIF sequencing traces, VASP/Gaussian/XCrySDen DFT structures, ChemDraw (CDX/CDXML), Axon ABF and NI TDMS instrument data, BrainVision/Neuroscan/EEGLAB EEG, Gmsh/Abaqus/Nastran/ANSYS FEA decks, SPICE netlists, VTK structured/rectilinear grids and oscilloscope waveforms.

Per-format guides: .RDS · .RData · .RDA · .AB1 · .POSCAR · .CUBE · .XSF · .CDX · .CDXML · .ABF · .TDMS · .VHDR · .VMRK · .CNT · .EEG · .SET · .VTS · .VTR · .NET · .MSH · .INP · .CDB · .WFM

GIS / mapping (more) O5M O5C LYR LYRX QGS QGZ SBN SBX CPT BIL BIP BSQ
ID
Identify and read more GIS and mapping files: OpenStreetMap o5m/o5c binaries, Esri layer files (.lyrx ArcGIS Pro CIM JSON, .lyr ArcMap), QGIS projects (.qgs/.qgz - version, CRS, layer list), shapefile spatial indexes (.sbn/.sbx), GMT/GDAL colour palettes (.cpt) and ENVI band-interleaved rasters (.bil/.bip/.bsq).

Per-format guides: .O5M · .O5C · .LYR · .LYRX · .QGS · .QGZ · .SBN · .SBX · .CPT · .BIL · .BIP · .BSQ