Overall Score
17
Top 50%
of AI companies
Captioner is a browser-based subtitle platform built for creators who care about accuracy. Upload an MP4 or MOV and get highly accurate spee
Captioner is a browser-based subtitle platform built for creators who care about accuracy. Upload an MP4 or MOV and get highly accurate speech-to-text in 98+ languages, with timestamps aligned for video, not just raw transcripts. Word-level timing and precise line breaks mean minimal cleanup and a s...
Overall Score
17
Top 50%
of AI companies
Overall Score
17
GitHub Stars
—
Monthly Visits
3K
Community Rating
5.0
Captioner is a browser-based subtitle platform built for creators who care about accuracy. Upload an MP4 or MOV and get highly accurate speech-to-text in 98+ languages, with timestamps aligned for video, not just raw transcripts. Word-level timing and precise line breaks mean minimal cleanup and a s...
Latest detected signals across traffic, developer activity and community mentions.
Indexed by indexator.ai
Launched on Product Hunt
| Keyword | Volume / Mo | CPC |
|---|---|---|
| captioner | 560 | $0.30 |
| web captioner | 2,340 | $0.49 |
| captioner.ai | 120 | — |
| captions io | 430 | — |
| caption with accurate timestamp free | 50 | — |
Simple Pricing, Unlimited Usage
Free
/ monthly
Free
$0
Not Convinced? Try it for yourself!
Free
Free trial available
Captioner is a browser-based subtitle platform built for creators who care about accuracy. Upload an MP4 or MOV and get highly accurate speech-to-text in 98+ languages, with timestamps aligned for video, not just raw transcripts. Word-level timing and precise line breaks mean minimal cleanup and a s...
Get notified when score, traffic, GitHub or community signals change.
Latest detected signals across traffic, developer activity and community mentions.
Indexed by indexator.ai
Launched on Product Hunt
Six signals, each 0–100, blended into the overall by their listed weight.
Generated from public signals and search intent.
Badge
A lightweight SVG badge showing the score.
<a href="https://indexator.ai/companies/captioner-io" target="_blank" rel="noopener">
<img src="https://indexator.ai/api/embed/badge/captioner-io" alt="Captioner.io Score on Indexator.ai" width="200" height="60" />
</a>Score Card
An embeddable card with score breakdown.
<iframe src="https://indexator.ai/api/embed/card/captioner-io" width="300" height="200" frameborder="0" style="border:none;border-radius:8px"></iframe>Category Leaderboard
Top 10 in Video & Audio.
<iframe src="https://indexator.ai/api/embed/leaderboard?category=Video%20%26%20Audio" width="300" height="400" frameborder="0" style="border:none;border-radius:8px"></iframe>Each dimension is weighted (traffic 20% · community 25% · growth 15% · momentum 15% · innovation 10%) and combined into the overall.
| Keyword | Volume / Mo | CPC |
|---|---|---|
| captioner | 560 | $0.30 |
| web captioner | 2,340 | $0.49 |
| captioner.ai | 120 | — |
| captions io | 430 | — |
| caption with accurate timestamp free | 50 | — |
Simple Pricing, Unlimited Usage
Free
Free
$0
Not Convinced? Try it for yourself!
Free
10.7K
Rating
5.0
2 reviews
Views
1.6K
Category
Video captions
Pros · 12
Cons · 6
Rating distribution
User reviews · 1
This one is CRAAAAAZY! drop your MP4/MOV, it locks captions to speech cleanly (also multi-language), the in-browser editor is solid and you can either export SRT for youtube or burn the subs in shorts with a couple clicks. it's a W for creators :D
Release history · 1+
Initial release of Captioner.io.
Q&A · 6
How accurate is Captioner, and why does that matter for video?
Express is for quick turnaround: fast subtitling, lightweight edits, and translation from English to Mandarin Chinese. Unlimited adds the Pro editor for deeper timing/text control, longer videos (up to 3 hours), priority rendering, and full export flexibility.
Export standard SRT, VTT, and SBV for use in YouTube and NLEs. You can also render a video with open captions (burned in) directly from the editor, including style choices and up to 4K output.
Videos can be up to 3 hours per file, with a current size cap of 2GB. MP4 is recommended for best results; MOV is supported as well. For larger sources, compress or proxy first, then export captions for final renders elsewhere.
Transcription covers 98+ languages, with strongest accuracy in widely used languages. Translation in Express currently supports English → Mandarin Chinese, with additional language pairs planned.
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