Compress video to 100 MB
Big enough for real quality, small enough to upload anywhere. Compressed on your own device with a guaranteed final size.
Drop your video here
or
MP4, MOV, WebM, MKV, AVI and more — any size, no upload
🔒 Files never leave your device — everything runs in your browser.
100 MB is the ceiling you meet on portfolio sites, job application uploads, WordPress's common default, WeTransfer's free tier per-file sweet spot, and many internal company tools. It is also simply a sane size for sharing: fast to send, fast to download, and kind to whoever is on mobile data at the other end.
At this budget, quality stops being the concern for most footage — five to ten minutes of 1080p-class video fits comfortably. What matters is the guarantee: ConvertUno's compressor targets the byte count itself, so the result actually clears the upload check instead of landing at 104 MB and failing anyway.
How it works
- Drop your file
Any common format, any size. Nothing is uploaded — the tool runs in your browser.
- Pick your target
Use the presets above — this page's defaults are tuned for compress video to 100mb — or type any size.
- Download
Your converted file is ready on your device — nothing to wait for, nothing to delete from a server.
Frequently asked questions
How many minutes of video fit into 100 MB?
Around five to eight minutes at sharp 1080p-class quality, or well over fifteen minutes at 720p. Screen recordings with static content stretch much further than handheld or action footage.
Why is my phone video so huge in the first place?
Phones record with high-bitrate encoders tuned for capture speed, not efficiency — often 4K at 60 frames per second. A deliberate re-encode keeps what your eye notices and discards the excess, which is why a tenfold size reduction can look almost unchanged.
Does compressing twice damage the video?
Repeated re-encoding compounds quality loss, so avoid compressing an already-compressed output again. Pick your final target once and compress the original file directly to it.
Is my file uploaded to a server?
No. ConvertUno runs entirely in your browser on your own device. Your file never leaves your computer or phone — there is no upload at all.
Is it really free, with no watermark?
Yes. Processing happens on your device, so serving you costs us almost nothing — no watermark, no account, no file-size limit, no daily quota.