AI Video Editor

OnlineCompress

Shrink video file sizes in your browser without sending footage to a server.

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OnlineCompress

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What is OnlineCompress?

OnlineCompress.net is a free online video compressor that reduces file sizes directly in the browser using local processing.

OnlineCompress vs Similar AI Tools

Pricing ModelFreeFree, Free TrialFree, Free Trial, Custom PricingFree
Free Credits
Key Features
  • Supports MP4, MOV, MKV, AVI, WMV, WebM input formats
  • Browser-first engine selection (WebCodecs preferred, FFmpeg fallback)
  • Local processing ensures files never leave your device
  • AI-guided story & clip matching
  • No blank timeline or editing dread
  • Script writing assistance
  • AI video generation from documents, URLs, and prompts
  • Team workspaces with shared libraries and access controls
  • Multi-lingual video translation
  • 4 video + 3 audio tracks with drag/trim/split/snap
  • Keyframe animation on ~25 properties with easing
  • Chroma key (green screen) with spill suppression
Pros
  • Completely free with no hidden costs
  • All processing is local, preserving privacy
  • Eliminates complex timeline editing
  • AI matches script lines to best clips automatically
  • Drastically reduces video creation time (up to 90%)
  • Repurposes existing content automatically
  • Open source with MIT license
  • Zero npm dependencies – runs with a single server
Cons
  • Only outputs MP4 format
  • Speed depends on device power and browser support
  • Limited to 3 free exports
  • May not support advanced editing features
  • Pricing not publicly listed
  • May require learning curve for advanced enterprise setup
  • Requires Chromium-based browser (no Firefox/Safari)
  • Export requires ffmpeg on PATH for best quality
Best For
  • Quickly compressing videos for email attachments
  • Reducing file size for social media uploads
  • UGC creators
  • Small business owners
  • Customer education teams
  • Learning and development departments
  • Developers building AI-driven video editing pipelines
  • Content creators seeking programmable video editing

How to use OnlineCompress?

  1. 1Drag and drop or choose a video file (MP4, MOV, WebM, AVI) from your device.
  2. 2Select compression settings: target size in basic mode or fine-tune bitrate, frame rate, resolution, and audio in advanced mode.
  3. 3Click 'Compress' and download the resulting MP4 file.

OnlineCompress Key Features

  • Supports MP4, MOV, MKV, AVI, WMV, WebM input formats
  • Browser-first engine selection (WebCodecs preferred, FFmpeg fallback)
  • Local processing ensures files never leave your device
  • No watermarks or forced sign-ups
  • Custom target size or advanced controls for bitrate, resolution, frame rate

OnlineCompress Use Cases

  • Compressing video attachments for email
  • Reducing gameplay clips for community upload limits
  • Preparing videos for social media platforms like TikTok, YouTube, Instagram
  • Optimizing hero videos and background assets for websites

OnlineCompress Pricing & Free Credits

OnlineCompress currently operates on a Free model.

This tool is completely free to use

Free

$0

Unlimited video compression in browser with no subscriptions or watermarks.

OnlineCompress Pros & Cons

Pros

  • Completely free with no hidden costs
  • All processing is local, preserving privacy
  • Supports multiple input formats
  • No watermarks on output
  • Easy drag-and-drop interface

Cons

  • Only outputs MP4 format
  • Speed depends on device power and browser support
  • Some quality loss may occur with aggressive compression

What is OnlineCompress best for?

  • Quickly compressing videos for email attachments
  • Reducing file size for social media uploads
  • Users who need privacy-focused browser-based compression

OnlineCompress FAQ

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