What is a .THUMBSDB file?
Thumbs.db is a Windows cache of folder thumbnail images.
- Did you know
- Older Windows left a Thumbs.db in each folder to show picture previews faster.
- Thumbs.db is stored in Microsoft’s OLE Compound File format, the same container used by older Office documents.
- Because cached thumbnails can linger after the originals are deleted, the file is a known source of forensic evidence.
- What Analyser reads
- 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.
- Depth of analysis
- .THUMBSDB is an identification-grade format: Analyser recognises it from its bytes and decodes the header metadata it carries, rather than opening it in a full viewer. Formats that do get a full viewer are marked "Full" on the formats page.
- Open a .THUMBSDB file
- Drag a .THUMBSDB file onto the Analyser home page (or tap to pick one). It is identified entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.