Skip to content
All Online Tools

Detect Language

Find out which language a document is written in — works offline for 10 Indian languages and English.

Your files stay on this device

or drop them here, or paste with Ctrl+V

TXT, PDF, DOCX, PPTX, XLSX, CSV · up to 20 files · stays on your device

How to use Detect Language

  1. 1Add one or more files — drag and drop or tap to choose. Accepted: TXT, PDF, DOCX, PPTX, XLSX, CSV.
  2. 2No settings needed.
  3. 3Press “Detect language”. Processing happens on your device.
  4. 4Download your Report, one by one or all together as a ZIP.

About this tool

Find out which language a document is written in — works offline for 10 Indian languages and English. Your files are processed locally in your browser, so they're never uploaded, queued or stored — which also makes it fast. It's part of our free translation tools, which work together — you can pass the result straight into related tools below.

Accepts
TXT, PDF, DOCX, PPTX, XLSX, CSV
Gives you
Report
Files at once
Up to 20
Processed
On your device

Frequently asked questions

Is Detect Language free?

Yes. There's no sign-up, no watermark and no usage limit.

Is my document sent anywhere?

With your browser's built-in translator, translation runs on your device. Only if the site owner has configured a self-hosted LibreTranslate server and your browser has no built-in translator is text sent to that server — the tool shows which engine is used before you start.

Which file types can I use?

TXT, PDF, DOCX, PPTX, XLSX, CSV. Files are checked by their actual content, not just the extension, so renamed or damaged files are caught early.

Is there a file size limit?

Each file can be up to 200.0 MB, and you can process up to 20 files at once. Because processing uses your device's memory, very large files work best on a computer.

Does it work on my phone?

Yes. It works in modern mobile browsers on Android and iPhone. Heavier jobs (large PDFs, OCR) are faster on a computer.