Compress MP4, MOV, WebM, MKV, AVI and more locally in your browser. Files never leave your device.
Users
30
+12 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
1
0 in 30 days
Store rank
#131K
#109K among extensions
Version
1.1.0
updated 14 Aug 2026
Users
monthly, 3 months
Latest, 20 Oct 2026:30 usersMove the mouse over the chart for any month
Ratings count
monthly, 3 months
Latest, 20 Oct 2026:1 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Video Optimizer
Video Optimizer compresses videos right in Chrome — privately, on your device.
Drop in a video, pick a quality preset, and download a smaller file. No uploads, no accounts, no waiting on a server.
Best for
Short clips, screen recordings, and videos you need to shrink before sharing
Typical files in the tens to low hundreds of MB
Anyone who wants compression without sending footage to the cloud
Works with
Input: MP4, MOV, WebM, MKV, AVI, and more
Output: MP4 or WebM
Quality presets and optional downscale (1080p / 720p / 480p)
Features
Local compression in the browser (files stay on your device)
Chrome Side Panel — stays open as you switch tabs
Quality presets: light, balanced, strong, and tiny
Optional downscale to 1080p, 720p, or 480p
Cancel compression anytime
Fallback mode for tricky files (including some HEVC screen recordings)
UI follows your Chrome language
How to use
Click the Video Optimizer icon
Drop or choose a video in the side panel
Select format, resolution, and preset
Compress and download
Ideal when you need to shrink a clip for email, messaging, or the web — without sending it anywhere.
Processing: runs locally with FFmpeg.wasm in Chrome. That means strong privacy and zero backend — and also means it’s built for convenience, not as a replacement for desktop tools like HandBrake on huge 4K or multi‑GB files.
Soft limit: up to 512 MB per file.
Changelog
1.1.0
• Aspect ratio options: original, 16:9, 9:16, 1:1, 4:5
• Quality presets are now a slider with short descriptions
• Open the compressed preview in a new tab
• More compact file card and settings layout in the side panel
1.0.0
- Initial release