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 6 free tools: Video Converter (MP4/WebM/MOV/MKV), Video Cutter (lossless trim), Video Compressor (smart CRF), Video to GIF (custom FPS), Audio Extractor (MP3/WAV), and Video Cropper (9:16/16:9/1:1 ratios). All tools are 100% free 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 actively uploaded to any server — all processing happens on your device's CPU and RAM. This means zero data leaks, instant processing speed, and complete privacy.
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.