Local video compression
Mediabunny + WebCodecs provides the fast path. When the browser or source codec is incompatible, an optional ffmpeg.wasm compatibility mode is loaded on demand. Files remain on your device.
Free online video compressor
Drop a file hereCommon video formats supported, with compatibility mode when needed
MP4M4VMOVWebMMKVAVIWMVFLVMPEGTSMTSM2TS3GP
Videos are compressed locally and exported as MP4. Files are never uploaded.
orFiles are processed on your device and never uploadedFree online video compression with local MP4 export
Re-encode video in your browser, tune compression, resolution, frame rate, and audio, then compare both videos during synchronized playback.
Resolution and frame-rate controls
Keep the original size or select 1080p, 720p, or 480p, adjust frame rate, and optionally remove audio.
Synchronized comparison
Play the source and result together and drag the divider to inspect clarity and compression artifacts.
Video compression FAQ
Do I need to upload my video?
No. Reading and encoding happen locally in your browser. Large videos use more device memory, so keep the page in the foreground while processing.
Which format is exported?
The current output is MP4 with H.264 video and AAC audio when audio is retained, suitable for websites, social media, presentations, and everyday sharing.
Why can some videos not be compressed?
Fast mode depends on codecs supported by your browser and device. If it fails, try the ffmpeg.wasm compatibility mode for more legacy containers and codecs. It requires an additional first-use download and processes more slowly.
How can I make the video smaller?
Choose the smaller preset, lower the maximum resolution or frame rate, and remove audio when it is not needed.
RouteMarket.ai
Explore RouteMarket AINeed new media? Start with RouteMarket AI
Generate images and videos with RouteMarket AI, then return here to compress them locally in your browser.