Professor Compressor

Professor Compressor helps Discord users share videos that exceed their server’s upload limit. It compresses videos locally in the browser and automatically delivers the finished MP4 files back to the channel where the process started.

How it works

1. Run /compress in a server channel.
2. Open the private, single-use browser link.
3. Select up to 10 videos.
4. Keep the compressor window open while your device processes them.
5. Receive the completed Discord-ready videos in the original channel.

Features

• Compresses up to 10 videos in one session
• Automatically targets the upload limit reported by Discord
• Processes original videos locally using FFmpeg WebAssembly
• Avoids unnecessary re-encoding when a video is already compatible
• Displays per-video progress, output size, and reduction percentage
• Delivers all completed MP4 files back to Discord
• Requires no application or compression software installation

Privacy

Your original videos remain on your device. Only the finished compressed files pass temporarily through Professor Compressor’s HTTPS-protected relay for delivery to Discord.

Finished files are held briefly in memory and are never saved to disk. Upload sessions use private, expiring, single-use links.

Current support

Professor Compressor currently supports video files and produces Discord-compatible MP4 files. It does not compress images, GIFs, PDFs, or other documents.

Desktop Chrome and Edge provide the best performance. Because compression runs on your device, processing speed depends on your hardware and the compressor window should remain open and visible.