New 100% Client-side processing

Optimize your videos with zero compromise.

The most advanced browser-based video compression suite. Reduce the size of your media securely without leaving your device.

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Upload a Video

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Absolute Privacy. Flawless Results.

Most online tools force you to upload your sensitive files to a remote server. We took a different approach. SwiftCompress uses advanced WebAssembly to optimize your files entirely inside your own browser.

Total Security

Your photos, confidential documents, and personal videos never touch our servers. Processing happens in your local RAM.

Instant Processing

No waiting for heavy files to upload or download. The compression begins the very second you select your file.

No Hidden Limits

Completely free to use. No sign-ups, no watermarks, and no artificial daily limits blocking your workflow.

Frequently Asked Questions

SwiftCompress uses FFmpeg compiled to WebAssembly (WASM), which runs the full FFmpeg video encoder directly inside your browser tab. No server is involved — your video stays on your device.
We support MP4 (H.264), WebM, MOV, and AVI files. Output is always in MP4 format with H.264 encoding for maximum device compatibility.
Video compression requires re-encoding every single frame using CPU power. A 1-minute video may take 2–5 minutes to compress in the browser — this is completely normal.
Yes! Set quality to 30–40% to get files under Discord's 8MB free limit or 25MB Nitro limit. For WhatsApp, aim for under 16MB.
We recommend files under 100MB for browser-based compression. Larger files may consume too much browser memory (RAM). Try splitting long videos first.