| What it does | Free browser-based video frame extractor with no server upload
| Free, open-source video captions you control
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| Stage | Not given
| Startup
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| Founded | Not given
| 2026
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| Based in | Not given
| Not given
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| Pricing model | Free
| Freemium
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| Pricing | Not given
| Free app (1080p at 30 fps), Pro one-time purchase 14.99 €, self-hosting free
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| Key features | - ±5 frame filmstrip loupe with Laplacian variance sharpness scoring
- Support for MP4, MOV, WebM, MKV, AVI video formats
- H.264, VP9, AV1, and HEVC 10-bit codec support
- Export as PNG, JPEG, or WebP format
- First and last frame automatic extraction
- PTS-aligned frame accuracy verification against ffmpeg
| - Transcription with Whisper, Parakeet, or Apple Speech
- Word-by-word animated captions
- Caption styling and correction
- Export as MP4, WebM, ProRes, SRT, VTT or JSON
- iPhone app with on-device transcription
- Self-hosted Docker deployment
- HTTP API for scripts and pipelines
- Integration with Claude, Cursor and MCP clients
- Support for 13 interface languages
- GPU acceleration optional for faster transcription
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| What makes it different | - 1:1 native pixel accuracy with PTS frame-locking, not screen capture approximation
- Laplacian variance auto-ranking to eliminate motion blur and identify sharpest frames
- Support for variable frame rate (VFR) and constant frame rate (CFR) with proper accuracy
- Multi-gigabyte file support up to 4K on mobile and 8K on desktop with discrete GPU
| - Open source with Rust engine shared across browser, app and server
- No uploads: iPhone app transcribes on device, self-hosted keeps videos local
- Free with one-time Pro purchase, no subscription required
- Run on your own server with Docker, no dependency on external services
- Agent integration for video captioning from Claude and other AI tools
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 56 ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 5 | 0 |
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| Citation Flow (Majestic) | 30 | 0 |
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| Referring domains (Majestic) | 187 | 0 |
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Frame Extractor
OpenCaptions