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FFmpeg WebAssembly Transcoder Engine

Client-Side Video Compressor

Compress MP4, MOV, WebM, and MKV video files directly inside browser RAM. Zero server uploads guarantee 100% privacy and lightning speed.

Browser CPU & WASM Memory NoticeVideo compression requires significant CPU power and RAM. For best performance, recommend video files under 500MB. Processing takes place entirely on your device!

Drag & Drop Video Files Here

Supports MP4, MOV, WebM, AVI, and MKV. Process single or multiple videos in browser RAM.

Browse Video Files

वीडियो कंप्रेसर

MP4, MOV, WebM और MKV वीडियो को सीधे अपने वेब ब्राउज़र में कंप्रेस करें।

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01How to use Video Compressor

1

Drag and drop your MP4, MOV, WebM, AVI, or MKV video file into the upload dropzone.

2

Select your preferred compression quality (Low, Medium, High or custom CRF percentage).

3

Optionally downscale resolution (e.g. 720p HD or 480p SD), reduce FPS (30fps/24fps), or trim start/end times.

4

Click 'Compress Video' to start FFmpeg WASM in-memory processing with real-time percentage progress.

5

Compare original vs compressed file sizes, preview the compressed video player, and click Download.

02Key Features

100% Client-Side FFmpeg WASM

Runs FFmpeg WebAssembly inside your browser RAM. Zero server uploads guarantee absolute privacy.

Custom CRF & Format Controls

Export as MP4 (H.264) or WebM with adjustable compression sliders, resolution caps, and FPS limits.

Video Trimming & MP3 Extraction

Trim video duration to save size or extract pristine MP3 audio tracks directly.

Before/After Side-by-Side Comparison

Compare original vs compressed file sizes, percentage savings, and video playback.

04Benefits

  • Share large video files over WhatsApp, email, or web portals without hitting upload limits.
  • Keep personal home recordings and sensitive business clips 100% secure on your computer.
  • No registration, no subscription paywalls, no watermark additions.
  • Fast local processing with multi-threaded WASM hardware acceleration.

05What is Video Compressor?

ToolWala AI's Video Compressor utilizes FFmpeg compiled to WebAssembly (@ffmpeg/ffmpeg) to transcode and compress videos locally on your device CPU. Reduce video file size by up to 80% with customizable CRF quality sliders, resolution downscaling (1080p, 720p, 480p), frame rate reduction, video trimming, and MP3 audio extraction.

Final Verdict

Compress and transcode video files in seconds with complete privacy. Try ToolWala AI's browser-native Video Compressor today!

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Client-Side Privacy Guarantee

All operations execute locally inside your web browser. Documents are not uploaded to remote servers or stored in any database. Free with no account required.

100% In-Browser
Video Tools Suite

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