Compress WebP Online
Free, instant, and private. Up to 60% smaller files — no upload required.
Drop images here or click to browse
PNG, JPG, WebP, GIF, BMP, HEIC
What is WebP compression?
WebP compression reduces the file size of a WebP file while keeping it as visually close to the original as possible. Instead of uploading files to a remote server and waiting for processing, Pixvert's WebP compressor runs the entire operation locally in your browser using the Canvas API, so WebP files never leave your device.
WebP already outperforms JPG and PNG by 25-35% at similar quality, so compressing an existing WebP file further usually means fine-tuning the quality setting to squeeze out the last bit of unnecessary data.
WebP is already efficient, but further compression helps when you need the smallest possible files for web delivery — without changing format. Whether you're preparing files for a website, an email, or cloud storage, compressing WebP images first means faster uploads, less bandwidth used, and quicker load times for anyone who opens them.
How to compress WebP images online
- 1
Upload your files — drop your WebP files into the box above, or click to browse — batch uploads are supported
- 2
Click Compress All — compression runs instantly in your browser, no server round-trip involved
- 3
Compare the result — check the new file size next to the original before downloading
- 4
Download — save files individually or grab the whole batch at once as a ZIP
When to compress WebP files
Faster websites
Smaller WebP files mean quicker page loads, which improves both user experience and search ranking.
Email attachments
Fit photos under attachment size limits without switching to a file-sharing link.
Storage savings
Free up space on your device or cloud drive by shrinking WebP files you no longer need at full resolution.
Faster sharing
Send files over messaging apps or upload them to forms and marketplaces that enforce size limits.
Why use Pixvert to compress WebP?
- ✓100% local processing: WebP compression happens entirely in your browser — files are never uploaded anywhere
- ✓Batch support: compress multiple WebP files in one pass and download them together as a ZIP
- ✓No signup required: use the tool immediately without an account or email
- ✓Free, with no hidden limits: no watermarks, no forced quality caps on your WebP output
Frequently Asked Questions
Is it worth compressing a WebP file further?
If it was exported at high quality, yes — re-encoding at a slightly lower quality setting can still shave off 10-20% with minimal visible impact.
Does WebP support transparency after compression?
Yes, WebP supports an alpha channel just like PNG, and compression preserves transparency.
Is it safe to compress WebP files here?
Yes. Compressing your WebP files happens locally in your browser using the Canvas API — nothing is uploaded to a server.
Is there a size limit for WebP uploads?
There's no hard limit set by Pixvert for WebP files, but very large files depend on your device's available memory to process smoothly.
Can I compress several WebP files at once?
Yes, drop several WebP files at once and click Compress All — each one is processed and can be downloaded individually or as a ZIP.
Can I use the compressed WebP files commercially?
Yes, Pixvert only reduces the file size of your WebP files — it doesn't alter your rights over the image or add a watermark.