Exact-Target Video Compressor
Compress any video to a precise MB target. Hit government portal limits, email caps, and KYC requirements - every time. Nothing is uploaded. Processing happens entirely in your browser.
Drop your video here or click to browse
MP4, WebM, MOV, AVI, MKV · No size limit
How It Works
Select any MP4, WebM, MOV, or AVI file. It stays in your browser.
Enter the exact MB limit from your portal, email provider, or platform.
FFmpeg calculates the exact bitrate using:
Bitrate = (Target KB x 8) / Duration
Get your video guaranteed to be under the target size. Every time.
Why You Need an Exact-Size Video Compressor
Government portals, banking KYC systems, job application forms, and email providers all impose strict file size limits on video uploads. A generic "reduce quality" slider won't guarantee you'll hit exactly 10MB or 25MB. This tool uses the bitrate formula to mathematically calculate the precise encoding parameters needed:
Video Bitrate (kbps) = (Target Size in KB x 8) / Duration in seconds
For example, to compress a 30-second video to exactly 10MB:
(10,240 KB x 8) / 30 = 2,730 kbps. The tool then subtracts the audio bitrate (128 kbps) and
encodes the video at the remaining bitrate, guaranteeing the output is always 0.1MB under your
target.
100% Private - No Server Upload
Unlike other video compressors that upload your files to remote servers, this tool runs FFmpeg entirely in your browser using WebAssembly (WASM). Your KYC selfie video, identity verification clip, or job application recording never leaves your device. This is critical for sensitive documents that contain your face, Aadhaar number, or personal information.