Free · In-Browser · No Upload
Optimize WebP Online
Re-encode WebP images at an optimal quality level for the fastest possible page loads, with exact before/after savings.
- No upload — 100% private
- Instant, in-memory processing
- Free, no sign-up, no watermark
Step by step
How to use Optimize WebP
- 01
Step 1
Add WebP files
Drop in one or many WebP images, or click to browse.
- 02
Step 2
Set the quality
Use a preset or the quality slider, and optionally cap the maximum dimensions.
- 03
Step 3
Download
See the savings for each file and download individually or as a ZIP.
Help & clarification
Frequently Asked Questions
Will my WebP lose quality?
At quality 70–85 the difference is practically invisible while the file is much smaller. If a file can't be made smaller, your original is kept unchanged.
Does it keep my file format?
Yes. Your images stay WebP — only the file size changes.
Are my images uploaded to a server?
No. Every operation runs locally in your browser using the HTML5 Canvas engine. Your files never leave your device, so they stay completely private.
Is this tool free to use?
Yes — it's completely free with no sign-up, no watermarks added to your output and no daily limits.
Keep creating
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