Task
Best AI tools to add subtitles to videos
We compared 4 AI tools to add subtitles to videos. All 4 have a free plan. Descript ranks first on our task-fit signals: adds captions to video, translates them, and offers AI dubbing in the same editor. Listings were last checked on Nov 6, 2026.
Subtitle tools transcribe a video and burn in or export captions. Compare accuracy controls such as editing the transcript before export, styling options, the languages supported, and export formats like SRT.
Preview build: this list has 4 of the 8+ tools a task page needs before it can be published (methodology, coverage rule).
The ranking
- 1
Descript
FreemiumFrom $24/moWhy it fits: Adds captions to video, translates them, and offers AI dubbing in the same editor.
Fit score 5/9: The tool's primary category matches the task's category; Five or more verified features; A free plan is available (stated on its pricing page); Plans and prices are verified from its own pricing page
- 2
HeyGen
FreemiumFrom $29/moWhy it fits: Auto captions are part of the editor's finishing tools alongside B-roll and Brand Kit.
Fit score 5/9: The tool's primary category matches the task's category; Five or more verified features; A free plan is available (stated on its pricing page); Plans and prices are verified from its own pricing page
- 3
Synthesia
FreemiumFrom $29/moWhy it fits: Auto-generated closed captions are produced for videos made in the editor.
Fit score 5/9: The tool's primary category matches the task's category; Five or more verified features; A free plan is available (stated on its pricing page); Plans and prices are verified from its own pricing page
- 4
CapCut
FreemiumFree plan availableWhy it fits: Auto captions are generated with options for translation and styling.
Fit score 4/9: The tool's primary category matches the task's category; Five or more verified features; A free plan is available (stated on its pricing page)
Side-by-side
Choosing a tool to add subtitles to videos: what the data says
- Free to try: Descript, HeyGen, Synthesia and CapCut have a free plan.
- Lowest listed entry price: Descript at $24/mo; the highest entry price here is Synthesia at $29/mo.
- Prices not verified: CapCut. Their pricing pages couldn't be read, so we show no figure rather than a guess.
- For developers: Descript, HeyGen and Synthesia offer an API.
Order is by fit score, from published signals; ties go alphabetically and no tool can pay for a position. How the score works.