Checksub

Subtitles, dubbing and localization in one bench

Tags Freemium AI tools AI video generator AI video translation Video to text AI voiceover

What Checksub is

Checksub focuses on one family of tasks: getting a video into other languages. Subtitles are generated and edited, the video is translated, and dubbed versions can be produced with voice cloning and lip sync.

It is a workbench for teams that do this repeatedly rather than a general video tool.

What you can do with it

Generate subtitles and refine them
Translate video content into more languages
Produce AI dubbing with cloned or synthetic voice
Apply lip sync to dubbed narration
Localize courses, marketing and interviews

Who it is for

Video teams publishing internationally
Education institutions and course creators
Media teams
Independent creators reaching new markets

What to watch out for

Sample check subtitles and terminology before batch processing long videos
Brand names, people's names, place names and technical terms need manual review
Poor source audio reduces transcription and dubbing quality
Voice cloning requires authorization from the person cloned

Pros & cons

✓ What we like

Subtitles, translation and dubbing together
Lip sync for dubbed versions
Practical for ongoing localization work

! What to watch out for

Terminology needs human checking
Depends on source audio quality
Voice rights to confirm

FAQ

What video suits it?

Course video, explainer video, marketing content and interviews that need multilingual versions.

How is it different from a subtitle tool?

It combines subtitles, translation and dubbing in one workbench instead of only overlaying text.

Can manual checks be skipped?

No. Names, terminology and brand pronunciation need review before publishing.

Last reviewed: 2026-09-16