Re-encode static WebP images at a practical quality level and compare the result before saving. All work happens locally.
How to use Compress WebP
- Drop static WebP files into the compressor.
- Choose a quality level.
- Select Compress WebP.
- Check the percentage change and download useful results.
What this tool is good at
When to use Compress WebP
Page-weight reduction
Trim large static WebP assets before publishing them in galleries, product grids, landing pages, or documentation.
Delivery-size experiments
Create several quality outcomes and compare bytes against visible changes rather than guessing from the slider alone.
Consistent batch policy
Apply one quality target to a related group of images so a release has predictable compression behavior.
How to choose the right settings
Begin at 75
The default favors useful savings, but detailed photographs and gradients may need a higher setting.
Watch negative savings
Small or already optimized inputs can become larger after re-encoding. The result table labels that outcome rather than presenting it as a success.
Resize when dimensions are excessive
Reducing pixel dimensions often saves more than repeatedly lowering quality, especially for images displayed at a small CSS size.
Practical workflow and output details
Compression here means decoding and re-encoding a static WebP. It can reduce file size, but it is not a lossless container optimizer and cannot improve detail already lost.
Transparent pixels are retained by the image path. Animation is rejected, and metadata chunks are not copied into the newly encoded output.
Format behavior and limitations
This is a lossy re-encode and cannot restore detail already discarded.
Animated WebP is rejected.
Container metadata and ICC profiles are removed.
Frequently asked questions
Will compression reduce quality?
Usually. This foundation processor performs a new lossy encode at your selected quality. Compare the preview and size result before downloading.
Does it keep transparency?
Yes, the browser WebP encoder retains transparent pixels, but metadata is not preserved.
Can I compress animated WebP?
Not with this processor. Animated WebP is detected and rejected rather than flattened.
Related WebP tools
JPG to WebP
Convert JPG and JPEG images to compact WebP files privately in your browser.
Resize WebP
Resize static WebP images to a precise width while keeping the original aspect ratio.
WebP Converter
Convert static WebP images to either PNG or JPG from one private browser workspace.