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Translate TSV files online

Upload your .tsv files to SimpleLocalize, add languages, auto-translate and download a single .tsv file with all languages in seconds.

Translate TSV file
No credit card required14-day free trialTracking-free service
key english polish welcome Welcome! Witajcie about-us About Us O nas register Register Rejestracja
key english polish
welcome Welcome! Witajcie
about-us About Us O nas
register Register Rejestracja

What is the TSV format?

Tab-separated values work like CSV but avoid escaping problems with commas inside translations. One row per key, one column per language.

It is used by Excel, Google Sheets, scripts. SimpleLocalize reads and writes it natively, so you keep your existing project structure. Format value for the CLI and API: tsv. Read the format documentation.

How to translate TSV files

  1. Create a free account and a project. The Community plan covers small apps with no credit card.
  2. Import your .tsv file in the web editor, or push it from the terminal with the CLI.
  3. Add target languages and run auto-translation. Use DeepL or Google Translate for speed, or OpenAI, Claude and Gemini with your own API key for context-aware translations.
  4. Review in the editor with QA checks, glossary and screenshots, then download the TSV files or publish them to the translation hosting CDN.

Sync TSV files from CI

Add a simplelocalize.yml to the repository and run simplelocalize upload and simplelocalize download in your pipeline or GitHub Action:

# simplelocalize.yml apiKey: YOUR_PROJECT_API_KEY uploadFormat: tsv uploadPath: ./translations.tsv downloadFormat: tsv downloadPath: ./translations.tsv
# simplelocalize.yml
apiKey: YOUR_PROJECT_API_KEY
uploadFormat: tsv
uploadPath: ./translations.tsv
downloadFormat: tsv
downloadPath: ./translations.tsv

Convert TSV to other formats

The same project can export translations in more than 30 formats, and the free online converter works without an account:

All conversions and free translation tools.

Start translating TSV files

  • Native TSV import and export
  • Auto-translation with DeepL, Google, OpenAI, Claude and Gemini
  • Translation editor, QA checks, CLI and CDN on the free plan
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