Extract text from FASTA sequence files (FA)
To convert FA sequence files to another format, you need NCBI BLAST or other Data software.
To convert other file formats to the "Bioinformatics Sequence File" file type, you need software like NCBI BLAST or a similar tool.
A .fa file is a text-based biological sequence data file stored in the FASTA format. It is universally used in bioinformatics to represent nucleotide (DNA/RNA) or peptide (protein) sequences. The format is extremely simple: it begins with a single-line description starting with a greater-than symbol (>), followed by lines of sequence data using standard IUPAC letter codes. These files are typically generated by sequencing machines or downloaded from databases and are managed using software like NCBI BLAST or command-line utilities like SAMtools.
Despite its simplicity, the .fa format introduces major workflow challenges. Because genomic data is immense, these files frequently exceed 10GB or even 100GB. Opening a raw genome .fa file in a standard text editor like Notepad or Word will instantly freeze and crash your system because they try to load the entire file into RAM at once. Furthermore, the format lacks strict metadata structuring, making it difficult to import directly into modern databases without parsing the headers.
To safely inspect or repurpose sequence data, conversion is highly recommended. Convert .fa to CSV to parse the identifier headers and sequences into structured columns for spreadsheet analysis. For web development and API integration, convert to JSON to turn the flat text into key-value pairs. If you just need a smaller, readable snippet, convert to standard TXT. Drop your file here to analyze and convert it - free, online, and without installing heavy bioinformatics software.
Convert.Guru analyzes your FA file, detects the exact format, and lets you read the text inside.
Users also converted FASTA, FQ, GZ, FNA, ACCDB, JPEG, PDF, ZIP, SAV, MPFA and PDA files.
If you want to convert FA file to PDA, FASTA, TMP, TEMP, CACHE, LOG, BAK, OLD, NEW, PART, DOWNLOAD or CRDOWNLOAD, you can use NCBI BLAST or similar software from the "Biological Sequence Data Storage" category. In the File menu, look for Save As… or Export….
To convert DEVICE, CACHE, SOCK, SYMLINK, PID, MOUNT, FIFO, LOG, PIPE, TMP, JUNCTION or TEMP files to FA, try NCBI BLAST or another comparable tool in the "Biological Sequence Data Storage" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our FA converter.