runs 100% in your browser
Your screen recording is 480 MB. Discord wants 10.
Drop it below, pick where it needs to fit, and get a smaller file back — compressed right here in the tab. No upload, no account, no watermark.
uses your device's built-in video encoder · nothing to install · no file ever leaves your browser
No upload queue
Compression runs on your own CPU. A 500 MB recording never crawls up your connection to someone's server — there's nothing to upload, wait on, or trust.
No command line to learn
The same H.264 encoding professionals tune by hand — with the bitrate math and resolution worked out for you. Pick a size, press the button.
Private by default
Your video is processed in browser memory and discarded when you close the tab. We never see a frame of it — only anonymous size and preset stats.
Questions people actually ask
Does my video get uploaded anywhere?
No. The compressor runs inside your browser tab using WebCodecs, your device's built-in video encoder. Your file is read from disk into memory, compressed on your own machine, and never sent over the network. We log anonymous usage stats (file sizes, which preset you picked) to know if this tool is worth improving — never file contents or names.
How long does compression take?
Usually seconds to a minute. It uses your device's hardware video encoder (WebCodecs), so there's nothing to download and nothing to install — a long 1080p recording still finishes quickly.
What formats does it support?
MP4, MOV, WebM and MKV — which covers phone videos, screen recordings and gameplay clips. The result is always an MP4 (H.264 + AAC) that plays everywhere — Discord, iMessage, email clients, Slack.
Does compressing lose quality?
Yes — that's the trade. Fitting a 480 MB recording into 10 MB means fewer bits per frame. ShrinkClip spends them where they matter and only drops resolution when the math demands it, but a hard size cap always costs some sharpness.