Compress video to 8 MB
Fit your video under a hard 8 MB cap — guaranteed. Everything runs on your own device, so there is no upload and nothing to wait for.
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.
8 MB is the internet's most stubborn file limit. It was Discord's free upload cap for years, and it lives on in countless forum attachments, support-ticket forms, job application portals, and content-management systems that never raised their defaults. When a form rejects your clip, this is usually the number it is checking against.
ConvertUno treats 8 MB as a hard promise, not a suggestion: the compressor keeps re-encoding until the file genuinely fits under the cap, so it will never bounce. For a clip under about 30 seconds you can expect crisp 720p-class quality; for longer videos the tool spends your 8 MB budget as efficiently as hardware encoding allows.
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 8mb — 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
Why do so many sites still use an 8 MB limit?
It was the default upload cap in a generation of web software — and Discord's free limit until 2023 — so thousands of forums, forms, and portals still enforce it today. Old defaults die slowly, which is why "compress to 8 MB" remains such a common need.
How long can an 8 MB video be and still look good?
As a rule of thumb, up to about 30 seconds looks sharp, up to about 90 seconds looks respectable at a reduced resolution, and beyond that the compressor will progressively trade resolution for fitting the cap. A quick trim before compressing always beats squeezing a long video.
Discord raised its limit — do I still need 8 MB?
For Discord itself, use 10 MB (the current free cap). Keep 8 MB for the many other services that still enforce it, or when you want extra safety margin under a 10 MB check.
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.