Free browser-based media tool
Your complete browser-based video toolkit. Cut, convert, compress, crop, and extract audio — all processed locally on your device with zero uploads and zero watermarks.
Choose a tool above to get started, or explore our dedicated tool pages for specialized features.
Free browser-based video editing suite. Cut, compress, convert, crop videos and extract audio locally with WebAssembly. No uploads, no watermarks, and no cloud queues; practical limits depend on your browser memory.
Yes, HappyConvert is free to use. There is no registration required, no login needed, and no credit card or subscription fees. You can use the video and audio tools directly in your browser. Exports are watermark-free, with no cloud queue times; practical file size depends on your browser memory.
HappyConvert includes 8 free tools: Video Converter (MP4/WebM/MOV/MKV), Video Cutter (stream-copy trim), Video Compressor (smart CRF), Video to GIF (custom FPS), Audio Extractor (MP3/WAV), Video Cropper (9:16/16:9/1:1 ratios), Video Merger (join clips with stream copy), and Audio Converter (MP3/M4A/WAV/FLAC/OGG/AIFF). All tools are free to use with no watermarks.
We use WebAssembly (WASM) technology to run the FFmpeg engine directly inside your browser's sandboxed memory. Your video and audio files are not uploaded to any server for processing — the work happens on your device's own CPU and RAM, so the file never has to leave your computer. Nothing is queued on a remote machine, and there is nothing for us to store.
HappyConvert works on any modern browser that supports WebAssembly, including Chrome, Firefox, Edge, and Safari on Windows, macOS, Linux, and Android. For best performance, we recommend Chrome or Edge on a desktop computer.