Local Chunk Video Processor

100% browser-side ffmpeg.wasm pipeline. Upload local video/audio files, process in memory-safe chunks, resume after reloads, and download final output.

Privacy-first by design: no backend, no VPS, no cloud upload, and no social-platform extraction. Only your local files are processed.

Pipeline

Split → Process → Merge

Execution

ffmpeg.wasm on-device

State

IndexedDB recovery

All processing stays on-device.

Drag and drop your file here

or click to upload

Supported: video/*, audio/*

Max file size: 1.00 GB

Chunk Processing Settings

Jobs are split with -c copy, processed sequentially, and merged locally in-browser.

Processing Mode

Container-safe processing using stream copy only.

Chunk Duration (seconds)

Shorter chunks reduce memory usage on low-end devices.

Quality (CRF, lower = higher quality)

Used only in Compressed MP4 mode with -preset ultrafast.

Audio Bitrate (kbps)

Used only for audio extraction mode.

Cooling Delay (ms)

Adds short pauses between chunks to reduce thermal throttling.

Runtime

FFmpeg runtime idle.

Queue

0 total • 0 waiting • idle

Recovery

0 resumable items

Device Strategy

Desktop performance mode

AI: wasm • Cooldown 120ms

Background Queue

0 item(s)

Drop local video/audio files to begin.

Preview & Download

Select a job to inspect progress and output.

Restoring local processing queue...