Translate. Review. Deliver.

Translate course subtitles with a shared glossary. Review each language, keep original timestamps and export an organised SRT/VTT delivery ZIP.

How it works

  1. Add your existing lesson subtitles and choose target languages.
  2. Define shared course terms, then translate and review each lesson.
  3. Download language folders, your glossary and a delivery check report.

Enable JavaScript to use the workspace. Local tools work without an account and process files on your device.

Frequently asked questions

Which subtitle tools are free?

Editing, SRT/VTT conversion, timing shifts, line wrapping, quality checks and local video preview are free. No sign-up is needed. Files can contain up to 2,000 captions and be up to 1 MB.

Are my files uploaded?

Local editing and conversion run in your browser. Videos never leave your device. If you choose AI, caption text is sent to DeepSeek; timestamps stay in your browser.

Can I generate subtitles from a video?

srtwise works with existing SRT and VTT files. It does not transcribe audio, burn subtitles into a video or export a video.

What is included in a course delivery?

Completed lesson translations are grouped by language in a ZIP, with your glossary, JSON/CSV checks and a readme. An incomplete delivery requires explicit confirmation and lists every missing pair. AI output still needs human review.

Can I try this without an AI connection?

Yes. Load the two-lesson sample course, generate the fixed Spanish/French examples and download a clearly labelled sample ZIP. You can also import your own lessons and translate them directly.