How Compress Video to 10MB Works
AnyTool compresses a video to under 10MB entirely in the browser with a self-hosted single-threaded ffmpeg.wasm engine (bundled, no CDN). It probes the clip's duration and computes a target video bitrate so the encoded file lands under the 10MB cap (with a headroom margin), then encodes capped single-pass H.264 (libx264, -maxrate/-bufsize) with AAC audio, yuv420p and +faststart. If the result still overshoots, it automatically retries at a lower bitrate, so the file reliably fits email attachments and the free Discord 10MB limit.
- Runs client-side — the video is never uploaded
- Bitrate computed from duration to land under 10MB
- Auto-retry at a lower bitrate on overshoot
- H.264/AAC MP4 + faststart, accepted everywhere
- Fits email attachments and free Discord (10MB)
- Self-hosted engine — no CDN, no watermark, no sign-up
