What is a .FNA file?
FNA is a FASTA file specifically holding nucleotide (DNA/RNA) sequences.
- Did you know
- The .fna suffix marks a FASTA file as nucleic-acid sequences.
- The .fna suffix flags a FASTA file as nucleic-acid sequences, distinguishing it from the .faa used for proteins.
- Like all FASTA files, each entry opens with a greater-than header line followed by the raw sequence letters.
- What Analyser reads
- 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.
- Depth of analysis
- .FNA 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 .FNA file
- Drag a .FNA 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.