Freedom251 › AI Video Caption Generators
Auto Subtitle Generator

What Auto Subtitle Generator is
Auto Subtitle Generator is a browser service that creates timed subtitles from spoken video. Users can upload MP4, MOV, WebM, or MKV files, correct generated text, style captions, and export a captioned MP4 or separate SRT, VTT, and TXT files. Timing for each spoken word supports active-word effects, and captions can be burned into videos. Free and Starter exports have no watermark. Uploading, transcription, correction, and styling can be tried without an account, although signing in is required to download results. The Free plan costs nothing, billed monthly, and allows three projects per month, 10-minute videos, 500 MB files, 1080P output, and seven-day retention. Starter costs $7 a month, billed monthly, with 200 exports, videos up to 120 minutes and 5 GB, up to 4K output, and 90-day retention. Automatic transcription may contain errors, so captions should be reviewed before publication.
Who it suits
The service suits short-form creators, podcasters, coaches, and educators who need browser-based caption creation and styling. The Free plan fits shorter projects, while Starter raises duration, file-size, export, and retention limits.
What it does well
- Supports four common video input formats
- Provides word-level caption timing
- Exports MP4, SRT, VTT, and TXT
- No watermark on Free or Starter exports
- Can be tried before signing up
What to know first
- Free videos are limited to 10 minutes
- Free plan allows three projects monthly
- Automatic transcription can contain errors
- Downloads require signing in
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Starter | Monthly · 200 exports/month · up to 4K · videos up to 120 minutes and 5 GB · 90-day retention · all premium effects | $7 a month |
| Free | Free plan · 3 video projects/month · 1080P · videos up to 10 minutes and 500 MB · 7-day retention · unlimited SRT, VTT, and TXT | Free |
| Starter | Billed $60 once a year · 200 exports/month · up to 4K · videos up to 120 minutes and 5 GB · 90-day retention · all premium effects | $60 a year |
As autosubtitlegenerator.io lists them, read 9 Oct 2026. The maker's own page has the final word.
Verdict
Auto Subtitle Generator covers transcription, caption editing, styling, and multiple export paths in a browser. Its free tier is limited, while Starter expands video, export, resolution, and retention allowances.
Facts from Auto Subtitle Generator's own pages
- Burn-in captions
- Yes · autosubtitlegenerator.io, 22 Sept 2026
- Caption styling
- Yes · autosubtitlegenerator.io, 22 Sept 2026
- Export formats
- Users can export an MP4 with captions burned in or download separate SRT, VTT, and TXT files. · autosubtitlegenerator.io, 9 Oct 2026
- Free plan
- Yes · autosubtitlegenerator.io, 22 Sept 2026
- Intended users
- The site describes workflows for short-form creators, podcasters, and coaches or educators. · autosubtitlegenerator.io, 9 Oct 2026
- Max video length
- 120 · autosubtitlegenerator.io, 22 Sept 2026
- Media retention
- Guest projects are retained for 24 hours, signed-in Free projects for 7 days, and Starter projects for 90 days. · autosubtitlegenerator.io, 9 Oct 2026
- No watermark
- The service says exports on both Free and Starter have no watermark. · autosubtitlegenerator.io, 9 Oct 2026
- Privacy practices
- The privacy policy says the service processes uploaded video, extracted audio, transcripts, caption settings, operational logs, analytics, and subscription status; payment-card details are handled by the billing provider. · autosubtitlegenerator.io, 9 Oct 2026
- Purpose
- The browser-based service generates timed subtitles from spoken video, lets users correct and style them, and exports a captioned video or subtitle files. · autosubtitlegenerator.io, 9 Oct 2026
- Paid from
- 5 · autosubtitlegenerator.io, 22 Sept 2026
- Subtitle export
- other formats · autosubtitlegenerator.io, 22 Sept 2026
- Support resources
- The help center provides guides for getting started, supported formats, plan limits, export options, troubleshooting, and billing. · autosubtitlegenerator.io, 9 Oct 2026
- Transcript review
- The terms warn that automatic transcription can contain errors, especially with noise, overlapping speech, names, or accents, and users are responsible for reviewing captions before publication. · autosubtitlegenerator.io, 9 Oct 2026
- Try before signup
- Users can upload, transcribe, correct, and style captions without an account; signing in is required to download. · autosubtitlegenerator.io, 9 Oct 2026
- Video inputs
- Uploads support MP4, MOV, WebM, and MKV files. · autosubtitlegenerator.io, 9 Oct 2026
- Video limits
- Free supports videos up to 10 minutes and 500 MB; Starter supports videos up to 120 minutes and 5 GB. · autosubtitlegenerator.io, 9 Oct 2026
- Word-level timing
- Generated captions include timing for each spoken word, enabling active-word caption effects. · autosubtitlegenerator.io, 9 Oct 2026
Where Auto Subtitle Generator stands on Freedom251
- AI Video Caption Generators#61 of 99