Do you upload my video?
No. Compression happens locally in your browser. There is no 1GB upload cap — the file never leaves this tab.
Compress video online
Reduce file size and export MP4 for platform limits, email, and quick deliveries — all locally in your browser.
Frequently asked questions
Will the output always be smaller?
Usually yes, but it depends on how the original was encoded and its bitrate settings.
Does compression reduce quality?
It can. Try the Higher quality preset, or start with Balanced and compare.
Why is the output MP4?
MP4 is the most widely compatible delivery format across platforms and players.
What input formats are supported?
Most common video formats should work in compatibility mode, but performance depends on your browser and device.
What affects speed?
Mainly duration, resolution, device performance, and the chosen preset.