Video and audio tools,
processed on your device.
Compress, resize, convert, and trim media with a self-hosted FFmpeg WebAssembly Worker. The large engine loads only after you start a job.
Choose a media tool↓Six tools, ready to use
Every tool guards file size, duration, and dimensions, with actionable guidance when a codec cannot be processed.
MP4 Video Compressor
Reduce video size locally with adjustable H.264 quality and audio bitrate.
Open tool →Video Resizer
Resize video to 480p, 720p, 1080p, or custom dimensions locally.
Open tool →Video Converter
Convert common videos to MP4, WebM, or MOV without an upload.
Open tool →MP4 to GIF
Turn a video clip of up to 30 seconds into an optimized GIF.
Open tool →MP3 / WAV Audio Converter
Convert audio or a video soundtrack to MP3 or uncompressed WAV.
Open tool →Online Audio Trimmer
Choose start and end times and export the clip as MP3 or WAV.
Open tool →The source is mounted through WORKERFS to avoid another main-thread copy. After completion or cancellation, the FFmpeg Worker and virtual filesystem are terminated and cleared.