Compress WebP Images Online
Shrink still WebP files directly in your browser. Your images stay on your device, and you can process up to 100 files of 100 MB each in one batch.
Select WebP images
or drop images here
WebP files · Up to 100 images · 100 MB each
Images are compressed locally and never uploaded.
- Original
- —
- Compressed
- —
- Saved
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Drag the divider to compare. Use 100% to inspect fine details.
Adjust compression
Every image keeps its original format.
Why use this free WebP image compressor?
Free with no sign-up
Compress WebP images and download the results without creating an account, installing desktop software, or paying for a download.
Batch compression for up to 100 images
Add as many as 100 WebP files, let every image compress automatically, then download one result or all completed files in a ZIP archive.
Private browser processing
Image decoding, compression, previews, and ZIP creation all run in your current browser session — no selected file is uploaded to ImageNow.
How it works
- Select or drop up to 100 WebP images into the compressor.
- Compression starts automatically. Adjust the quality and use 100% view to inspect the details.
- Review the actual file-size savings, then download individual results or save all completed files in one ZIP archive.
Why a WebP gets smaller
Adjust Quality to make a static WebP smaller, or enter a maximum size in KB and apply it. The result keeps the WebP format and pixel dimensions. How much it shrinks depends on the source image and its previous compression.
What the compressed WebP keeps
For a still WebP, the compressor keeps the original pixel dimensions and transparent or semi-transparent areas. A newly encoded file does not retain EXIF or other embedded metadata. If re-encoding would make the file larger, ImageNow returns the original file unchanged instead. WebP files can be lossless or lossy, and ImageNow always re-encodes to lossy WebP — so a lossless source, often exported from a design tool or converted from PNG, becomes lossy even though transparency is kept.
An animated WebP becomes a single frame
This tool is made for still WebP images. Re-encoding an animated WebP in the browser can turn it into a single still frame, so do not use this page when the animation must be preserved.
Why the savings may be 0%
WebP is already an efficient format, so a well-optimized file may not get smaller with the selected settings. If the result is the same size or larger, ImageNow keeps the original and shows 0% savings.
Frequently asked questions
How do I compress a WebP file online?
Choose or drop your WebP files, wait for automatic compression, compare the before and after sizes, then download files individually or save all completed results in a ZIP archive.
Does compressing WebP reduce image quality?
It can. Lower Quality can make a smaller file while changing fine detail. Compare the images at 100% and raise the setting if needed. Keep the original if you plan to edit or export the image again.
Will transparency and EXIF data be preserved?
Transparent and semi-transparent areas are preserved in still WebP results. EXIF and other embedded metadata are removed when a new compressed file is produced; they remain only when ImageNow falls back to the unchanged original.
Can I compress an animated WebP?
The file may be accepted, but its animation is not preserved reliably. Use this compressor only for still WebP images.
Can I compress multiple WebP images at once?
Yes. Add up to 100 WebP files, let them compress automatically, and download results individually or together in a ZIP archive. Each file can be up to 100 MB.
Are my WebP images uploaded to a server?
No. The selected WebP files are decoded and compressed in your browser. Completed files and the optional ZIP archive are also created on your device.
Can I compress WebP images on Windows, Mac, iPhone, and Android?
The compressor works in modern browsers on Windows, macOS, Linux, iPhone, iPad, and Android. Very large or complex files use more memory and may work better on a desktop device.