Compress WEBP Image Online
Compress WEBP images online to shrink file size while keeping transparency and sharp detail. Adjust quality, go lossless, and download free.
How to Compress a WEBP Online for Free
Shrink any WEBP in three easy steps: add your file, choose quality or max-size mode, and save the smaller image—transparency kept, no software needed.
Step 1
Upload Your WEBP
Step 1. Drop a WEBP file from your device into the tool and it starts compressing right away.
Step 2
Set Compression
Step 2. Pick quality or max-size mode, then toggle lossless and choose whether to keep WEBP transparency.
Step 3
Download WEBP
Step 3. Preview the smaller WEBP and download it, or grab every file together in one ZIP.
Shrink WEBP Files While Keeping Quality
WEBP is the modern web format built to replace PNG and JPEG at a fraction of the size. Developed for the web, it packs both lossy and lossless compression plus full transparency into a single, lightweight container, which is why browsers, CMS platforms, and performance tools all recommend it. The catch is that WEBP files straight from design tools or converters are often heavier than necessary, and every extra kilobyte works against the very speed advantage the format promises. Compressing them is the simplest way to lock in WEBP’s full performance benefit. Modern sites ship many WEBP assets per page, so trimming each one compounds into meaningful load-time and bandwidth savings.
UnoIMG’s free WEBP compressor shrinks those files while protecting what makes WEBP special. By default it keeps the WEBP format and the alpha channel, so transparent regions stay see-through and graphics look identical after compression. You decide how aggressive to be: lossless mode trims redundant data with zero visible change, ideal for crisp logos and icons, while the quality slider trades a little softness for much smaller files when photos are involved. The preview updates in real time, so there are never any surprises about the result.
The payoff appears wherever WEBP is used. Web designers slim transparent assets and hero images so pages load instantly; developers pack lightweight graphics for apps and sites that stay sharp on every screen; marketers compress product and social images without losing clean edges. E-commerce stores cut WEBP cutouts for faster category pages, and agencies prepare client deliverables that arrive quickly over any connection. Teachers compress diagram graphics for lesson packs, and photographers export web galleries that open quickly on any device. Batch mode handles a folder of WEBPs in one pass and bundles them into a single ZIP, turning a tedious export chore into a few clicks, while social creators reuse the same compressed set across every platform.
Best of all, the process is private and free. Files never leave your device, there is no watermark, and you stay in full control of the output format and metadata. Whether you keep WEBP for its tiny size, switch to PNG for maximum compatibility, or export JPEG with a background fill, UnoIMG fits naturally into any daily workflow. That blend of speed, transparency preservation, and zero cost is why it belongs in every creator’s toolkit—helping you ship lighter, faster pages without desktop software or an account.
Smaller WEBP
Cut WEBP file size for faster pages while transparent areas stay perfectly clear.
Keep Transparency
Output stays WEBP by default, so alpha channels and transparent backgrounds are preserved.
Lossless Option
Toggle lossless mode to shrink size with zero quality loss—ideal for crisp graphics.
Batch ZIP
Compress many WEBPs at once and download them all together in a single ZIP file.
Private & Free
Files process inside your browser, never uploaded, with no extra cost and no watermark.
Metadata Control
Keep or strip EXIF and other metadata with one click before you save the file.
FAQ
Frequently Asked Questions
Your transparent pixels stay transparent. The tool keeps the WEBP format by default, so alpha channels and see-through backgrounds are preserved exactly as in the original file. Nothing turns black or solid.
By default the output stays WEBP, keeping full quality and transparency intact. If you need broader compatibility, you can also choose PNG or JPEG before you download with a single click.
You decide the trade-off. Use lossless mode for crisp, unchanged graphics, or drag the quality slider to shrink further. Most WEBPs still look identical to the eye while losing plenty of weight.
Yes. Compression runs entirely in your browser, so your WEBPs are never uploaded to a server or stored anywhere. Nothing leaves your machine at any point, keeping sensitive designs and logos fully on your device.
Yes. Add multiple files together, set your preferences once, and UnoIMG compresses them all in a batch before you download every finished WEBP together in a single ZIP archive, saving you from handling each file one by one.
That is up to you. A metadata toggle lets you keep EXIF and other embedded information or strip it before download with a single click, which also trims the final file size a little more.