Translate CSV
Language Files

Upload your CSV language files to SimpleLocalize, use auto-translation and download ready-to-go translation files in seconds.

Translate CSV file
No credit card required•14-day free trial•Tracking-free service
translations.csv
"key","english","spanish","polish" "welcome_message","Welcome","Bienvenido","Witamy" "logout","Log out","Cerrar sesión","Wyloguj się" "language","Language","Idioma","Język" "save","Save","Guardar","Zapisz"
"key","english","spanish","polish"
"welcome_message","Welcome","Bienvenido","Witamy"
"logout","Log out","Cerrar sesión","Wyloguj się"
"language","Language","Idioma","Język"
"save","Save","Guardar","Zapisz"

Why teams use CSV for translations

CSV is a plain, row-and-column format that every spreadsheet application already opens, which makes it an easy way to hand translations to a translator, an agency or a non-technical reviewer who would never open a code editor.

An optional description column carries context for translators, and an optional namespace column groups related keys, both read automatically on import with no extra configuration.

translations_with_context.csv
"key","english","description","namespace" "welcome_message","Welcome","Main welcome message","home" "login.title","Sign In","Login page title","auth"
"key","english","description","namespace"
"welcome_message","Welcome","Main welcome message","home"
"login.title","Sign In","Login page title","auth"

Beyond key and value

What SimpleLocalize keeps from your CSV files

Optional description column

Read automatically as translator context, no extra setup needed.

Optional namespace column

Group related keys, matching how your project organizes translations.

Quoting handled for you

Commas and quotes inside a value are quoted and escaped correctly on export.

Opens everywhere

Excel, Google Sheets and LibreOffice all read and write CSV natively.

Translate a CSV file end to end

CSV file upload in SimpleLocalize

Upload CSV file

1

Upload your CSV file with translations or use our CLI tool to upload translations from your terminal.

  • Include a "description" column in your CSV file to provide context for translators
  • Add a "namespace" column to group translations by context
  • Use our CLI tool to upload translations from your terminal
  • Preview translations from the file before uploading
CSV format details
translation editor for translation strings and localization files

Translate texts

2

Your data will show up in a translation editor which can be handed over to translators or other team members.

  • Auto-translate with DeepL, Google Translate, OpenAI, Claude or Gemini.
  • Invite your team members to the project
  • Track changes with activity log
  • Add comments or screenshots for better context
More about translation editor
translations.csv
"key","english","spanish","polish" "welcome_message","Welcome","Bienvenido","Witamy" "logout","Log out","Cerrar sesión","Wyloguj się" "language","Language","Idioma","Język" "save","Save","Guardar","Zapisz"
"key","english","spanish","polish"
"welcome_message","Welcome","Bienvenido","Witamy"
"logout","Log out","Cerrar sesión","Wyloguj się"
"language","Language","Idioma","Język"
"save","Save","Guardar","Zapisz"

Download translations

3

Download your translations in CSV, JSON, or XLSX format. You can also use our CLI tool to download translations from your terminal.

  • Download a ready CSV file with translations
  • Choose different file formats like JSON, XLSX and more
  • Automate the download process with our CLI tool or API
  • Host your translations online and use them in your application
Export translations

For developers

A localization platform,
not just a spreadsheet

A CSV file is rows and columns. SimpleLocalize turns it into a shared editor with review, automation and everything a spreadsheet can't do on its own.

Optional description column

A description column is read automatically as translator context, no extra setup needed.

Optional namespace column

Group related keys with a namespace column, matching how your project organizes translations.

AI auto-translation

Translate new and changed rows with DeepL, Google Translate, OpenAI, Claude or Gemini.

CLI and CI/CD sync

Keep CSV files in sync with a couple of commands, so translations can be pulled into any pipeline alongside your code.

SimpleLocalize connects your code to professional translations

More conversions

Convert CSV to other formats

Free online converter, no account required. Upload a CSV file and download it in the format you need.

CSV to JSON

Move spreadsheet rows into a JSON file for the web.

CSV to Excel

Turn a comma-separated file into an .xlsx workbook.

CSV to YAML

Move spreadsheet rows into a YAML locale file.

CSV to TSV

Switch comma-separated rows to tab-separated values.

CTA FeaturesGo to Editor

Start translating CSV files

  • Optional description and namespace columns, read automatically
  • Free community plan, no credit card required
  • Auto-translation with DeepL, Google, OpenAI, Claude and Gemini
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Frequently asked questions about CSV translations

Does the CSV file need a specific column order?

No. Column headers are matched by name, such as key, description or namespace, so the order of columns in your file does not matter.

Can I add context for translators?

Yes. Add an optional description column to your CSV file and it is imported automatically as context shown next to each key in the editor.

Can I group translations with a CSV file?

Yes. Add an optional namespace column, and keys are grouped in the editor the same way as if they came from separate namespaced files.

Can I export to a different format later?

Yes. Upload a CSV file once and export the same project to JSON, XLSX, YAML or any other supported format at any time.