Captioner.io
VerifiedAdd accurate, multilingual subtitles to videos - fast, right in your browser.
Quick facts
- Best for
- Video captions
- Pricing
- Freemium
- Editor rating
- 4.5 / 5
- Community saves
- 0
About Captioner.io
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 smoother editing flow. It’s designed to slot into real creator workflows. Import an existing transcript and auto-sync it to your video (think YouTube auto-sync, but tighter), then refine everything in an editor made specifically for subtitles. When you’re done, export SRT, VTT, or SBV for your editor—or burn captions directly into the video in your chosen style up to 4K. Captioner also supports quick translation (currently English → Mandarin Chinese in Express) and long videos up to 3 hours per file, with unlimited total minutes. It optimizes for accuracy over raw speed, so you spend less time fixing mistakes and more time publishing.
Pros
- High accuracy (98% )Supports 98 languages
- Word-level timestamps
- Precise subtitle alignment
- Import and auto-sync transcripts
- SRT, VTT, SBV export
- Burn-in subtitle video export
- Browser-based, no install
- Up to 3 hours per video
- Unlimited total minutes
- Creator-friendly editing UIAffordable plans
Cons
- Translation options are limited
- MP4/MOV uploads only2GB file size cap
- Not the fastest transcriber
- Watermark on free renders
- Advanced edits require Unlimited plan