TSV Format Guide & Converter

TSV file format is a tab-separated values table — like CSV but with tabs as delimiters, introduced by De facto / IANA text/tab-separated-values (1993+). TSV avoids comma collisions inside fields and is common in spreadsheet paste workflows and some bioinformatics/data tools. Convert to CSV when a destination insists on commas.

Full name

TSV file format

Kind

structured data

File extension

.tsv, .tab

MIME type

text/tab-separated-values

Developer / standard

De facto / IANA text/tab-separated-values · 1993+

Compression

none

Quality model

Lossless / not lossy

Container

No / single bitstream typical

Common codecs

—

Technical sources

—

Transparency

Not supported

Animation

No (still / non-animated typical use)

Typical size

Tiny compared with XLSX for the same rows

Browser support

Download and open in Sheets/Excel; convert in-browser with Format Convertly

Compatibility

Imports cleanly into Excel, Sheets, and scripts that expect tabs; some casual tools still assume CSV by default

TSV compression: none. Lossless (or non-destructive packaging) keeps reconstructable data — size savings come from packing efficiency, not throwing detail away. Typical size profile: Tiny compared with XLSX for the same rows. Quality note: Lossless text rows; formatting is not preserved

Quality: Lossless text rows; formatting is not preserved

Typical size: Tiny compared with XLSX for the same rows

TSV does not support an alpha channel. Convert to PNG, WebP, AVIF, or SVG when you need transparent backgrounds.

TSV is a still-media or non-animated format in typical use. Use GIF, APNG, video, or animated WebP when you need motion.

Usually none beyond encoding/BOM — structure is the content. Comments allowed in YAML/TOML.

• Pasting tables from spreadsheets
• Data pipelines that prefer tabs
• Avoiding comma-heavy European number locales
• Simple text tables in repos

• Multi-sheet workbooks
• Preserving Excel formatting
• Nested JSON-like data
• Binary content

• Fewer comma conflicts
• Plain text
• Spreadsheet-friendly
• Easy for scripts

• Tabs can be invisible when editing
• Less ubiquitous than CSV in casual exports
• One table only
• Encoding issues still apply

Imports cleanly into Excel, Sheets, and scripts that expect tabs; some casual tools still assume CSV by default

Browsers: Download and open in Sheets/Excel; convert in-browser with Format Convertly

• Excel
• Google Sheets
• LibreOffice
• pandas
• R

• Any device with a text editor or spreadsheet app
• Modern desktops
• Phones and tablets with compatible apps

Open TSV in Excel or Google Sheets via the text import wizard (choose Tab delimiter), or view it in a code editor with visible whitespace enabled.

Convert TSV↔CSV in Format Convertly’s browser tools for delimiter swaps without uploading spreadsheets or customer data.

• Pick a target format from popular conversions or the full list below.
• Your file is read into browser memory — not uploaded to a server.
• Download the result when conversion finishes.

Incoming conversions strengthen the TSV cluster — e.g. JPG → TSV, PNG → TSV.

Compare TSV with related formats to pick the right container for quality, size, and compatibility.

Decision pages that cite TSV — the next hop after a vs comparison.

Tools extend the format graph beyond one-off conversion — compression, metadata, and utilities for real workflows.

Uploading sensitive TSV files to a random converter creates a third-party copy you cannot control. Format Convertly keeps processing on-device so photos, contracts, and exports stay private.