Subtitle check and translation

Check SRT and WebVTT timing, overlaps, line lengths and reading speed. Translate plain-text cues while preserving timing.

Input

1 00:00:01,000 --> 00:00:03,000 Welcome to the workshop.

Result

The report lists timing and readability findings. In translation mode, the checked subtitle text can be downloaded with its original timing. Editorial review remains necessary.

Review subtitle timing and readability. Check overlaps and invalid timing. Review line length and reading speed. Translate subtitle text while retaining timing and cue identifiers.

Try it now Pricing

Who it is for

Video editors, training teams and content teams working with plain-text SRT or WebVTT files.

Typical uses

Check overlaps and invalid timing
Review line length and reading speed
Translate subtitle text while retaining timing and cue identifiers

Example

Input

1 00:00:01,000 --> 00:00:03,000 Welcome to the workshop.

Result

The report lists timing and readability findings. In translation mode, the checked subtitle text can be downloaded with its original timing. Editorial review remains necessary.

A fixed example, shortened. Real results are AI-generated: please check them.

Price and limits

Price: Check: 0 credits per task · Translate: usually 1–3 credits
Available with: Free, With package
Input limit: One page with up to 65,536 characters of HTML

Privacy

Processed on our own servers in the EU (Poland). Inputs and results are deleted after 7 days (Free) or 30 days (packages), or right after you see the result if you choose not to store them. Images are deleted right after processing.

In the API

Tool name: subtitles. Create a job with POST /api/v1/jobs and fetch the result with GET /api/v1/jobs/{id}. You find your API key in your account.

curl -X POST https://do4u.eu/api/v1/jobs \
  -H "Authorization: Bearer d4u_…" -H "Content-Type: application/json" \
  -d '{"tool": "subtitles", "url": "https://example.com/"}'

Full API documentation →

Questions and answers

Is the result ready for automatic publication?

No. The output requires review against the original material before use. The tool does not publish content or perform actions on another website.

Is my text stored?

Only as long as needed: 7 days on Free, 30 days with a package – or not at all if you choose not to store it. Processing happens on our own servers in the EU (Poland).

Can I use the result right away?

Results are AI-generated. Please read them before you publish or send them.