Video Humanizer forShort Clips.
Short-video mode runs locally in the browser. Upload a clip, inspect the preflight checks, and export an MP4 without sending the file to a backend.
Video Humanizer is sign-in only
Humanization runs entirely in your browser via ffmpeg.wasm — but you need a free account to start a session and track your weekly credits.
3 free credits every Monday. No card.
100% browser-only · your files never leave your deviceFree account · no credit card required
Pipeline pillars
What runs under the hood
Full Codec Re-Encode
The clip is fully re-encoded with H.264 (libx264), so the source model's encoder fingerprint, GOP layout and quantization profile are replaced by a standard playback-grade stream.
Motion-Safe Micro-Transforms
A subtle horizontal flip, micro-zoom, slight rotation and re-centered crop shift the framing just enough to break exact-match and frame-hash fingerprints — with no visible change to the clip.
Container & Metadata Rebuild
The output container is rebuilt with plausible recording-device tags instead of the AI tool's identifying metadata.
Motion-Safe Color Grading
Optional soft, fade, warm, cool and contrast passes apply gentle, intensity-controlled brightness, contrast and color-balance shifts that read like natural in-camera processing.
Chroma & Aspect Normalization
Output is normalized to 4:2:0 chroma (yuv420p) with a clean aspect ratio — matching how phones and consumer cameras store footage. Additional refinement passes are applied internally.
Browser-Only Processing
Runs entirely on your device with ffmpeg.wasm in a Web Worker. Your video never reaches a server.
How it runs
Three steps, all local
Drop video
Drag any AI-generated MP4, MOV or WebM clip. Up to 1080p, clips up to 30 seconds.
Local processing
ffmpeg.wasm runs the transform graph and a full re-encode in a Web Worker. Typical: 1–2× clip duration on a modern laptop.
Authentic export
Download a re-encoded MP4 with a standard codec profile and rebuilt container metadata.
Detector signals
Before vs. after — detector signals
- Encoder fingerprintAI-tool single-passStandard libx264 re-encode
- Frame / hash matchExact match to sourceBroken by micro-transform
- Container metadataAI-tool fingerprintRecording-device-equivalent
- Chroma samplingTool defaultNormalized 4:2:0
- Framing & geometryUntouchedFlip / micro-zoom / crop
- Color profileFlat syntheticGentle in-camera grade
FAQ
Common questions
Which AI video models does this handle?
Sora, Runway Gen-3, Pika, Kling, Luma — anything that exports a standard MP4 / MOV / WebM. The pipeline is model-agnostic: it decodes the clip and re-encodes it with the transform graph applied.
Does it work on iPhone HEVC clips?
HEVC sometimes fails inside browser decoders. If a clip refuses to load, transcode to H.264 MP4 first — any free converter works.
What's the maximum clip length?
Up to 30 seconds at 1080p. Longer clips are on the roadmap as the in-browser encoder is optimized.
Is the audio touched?
Audio is preserved when present — it's re-encoded to AAC (128 kbps), while the geometry and color transforms only affect the video stream.