VideoSlimmer

VideoSlimmer is a web-based tool that lets you compress video files directly in your browser. You select a video from your device, and the entire compression process happens locally. This means your original file is never uploaded to a remote server. You can trim clips, adjust resolution and bitrate, and choose between output formats like MP4 and WebM. The result is a smaller, more shareable video file that downloads straight back to your computer.

What sets VideoSlimmer apart is its focus on privacy and local processing. It uses WebCodecs or FFmpeg WASM to handle compression right in your browser tab. For more demanding tasks, like very large files or batch processing, VideoSlimmer offers dedicated native apps for iOS, Mac, and Windows. These apps extend the same local-first philosophy but with the added power for offline, long-form video workflows.

This tool is ideal for anyone who needs to quickly shrink a video for messaging apps, email, or social media without worrying about file privacy. It's also useful for freeing up storage space on phones or computers by compressing old recordings and screen captures. If you frequently deal with video files but don't want to learn complex editing software, VideoSlimmer provides a straightforward, private solution.