Compress WebP
Optimize WebP images for better performance. Reduce WebP file size efficiently.
or drop files here
Maximum file size: 50MB per file
Convert to a modern format for better compression. WebP is recommended for best results.
High Quality
Maintain file quality while reducing file size up to 80%.
100% Secure
All processing happens in your browser. Your files never leave your device.
Super Fast
Compress multiple files in seconds with our optimised algorithms.
Compress, convert & crop images offline on iPhone - privacy-first, batch up to 200
Compress to Target Size
Quickly compress your files to specific file sizes
About WebP Compression
WebP is a modern image format developed by Google that provides superior compression for images on the web. WebP images are typically 25-35% smaller than equivalent JPEG images. Our WebP compression tool optimizes these already efficient files even further, ensuring the best possible file size while maintaining quality. Perfect for web developers looking to improve page load times.Before emailing a PDF, open the downloaded copy and check fine text at the intended viewing size. The tool can reduce image detail; its target size is not guaranteed. If forms, signatures or searchable text matter, keep the original PDF.
What should I check before downloading?
Before emailing a PDF, open the downloaded copy and check fine text at the intended viewing size. The tool can reduce image detail; its target size is not guaranteed. If forms, signatures or searchable text matter, keep the original PDF.
- Compare the downloaded file’s quality and actual size.
- Savings vary by file. Some tools return the original if the output is larger; check the resulting format and size.
How to Compress :format Files
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1
Select WebP Files
Click the upload button or drag and drop your files into the upload area. You can select multiple files at once.
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2
Compress Files
Click the "Compress All Files" button. Our tool will process each file and show you the compression results in real-time.
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3
Download Compressed Files
Download your compressed files individually or all at once as a ZIP archive. Your original files remain unchanged.
Frequently Asked Questions
How much smaller will my WebP file get after compression?
Most WebP images shrink by 20-60% depending on existing quality and content. Files exported at quality 90 or higher often drop 40-50%, while already-optimised images may only gain 10-15%. Photos with smooth gradients compress better than sharp graphics containing text.
Does compressing a WebP image reduce its quality?
Lossy re-encoding at quality 75-85 keeps differences invisible to the eye, with typically under 2% perceived quality loss. The tool targets the smallest size that avoids artefacts like blockiness or banding, and you can compare before-and-after previews side by side.
Is WebP really smaller than JPEG and PNG?
Yes. Lossy WebP files are typically 25-35% smaller than comparable JPEGs, and lossless WebP runs about 26% smaller than PNG. Compressing an existing WebP further usually adds another 20-50% in savings, depending on how it was originally exported.
What is the maximum WebP file size I can upload?
Uploads up to 20 MB per file are supported, which covers WebP images up to roughly 8000x8000 pixels. You can also batch process up to 20 files at once, with total savings shown after each compression run.
Are my images uploaded to a server when I compress them?
No. Compression runs entirely in your browser with JavaScript, so images never leave your device. Nothing is uploaded, stored or shared, making the tool safe for private photos and client work, and it keeps working even on slow connections.
Can I compress animated WebP files?
Yes, animated WebP is supported. The tool re-optimises each frame, typically cutting animated file sizes by 20-40%. Frame count, playback speed and transparency are preserved, so looping animations look and behave exactly the same afterwards.
Can I convert JPEG or PNG images to WebP with this tool?
This tool optimises existing WebP files only. Convert JPEG or PNG first with a dedicated converter — expect 25-35% savings versus JPEG — then run the resulting WebP through this compressor to shave off another 20-50%.
Which browsers support WebP images?
Nearly all modern ones — Chrome, Firefox, Edge, Opera and Safari 14 or newer — together covering over 97% of internet users. Safari versions before 14 and Internet Explorer lack support, so serve a JPEG fallback if those browsers still matter to your audience.
Why Choose Let Compress?
- Compare the downloaded file’s quality and actual size.
- Savings vary by file. Some tools return the original if the output is larger; check the resulting format and size.
Compress images
Adjust image quality or dimensions. Lossy output can change fine detail; preview text and edges before using it.
There is no guaranteed saving or exact target for every file. If the result is larger, some tools return the original; compare its format and size before sharing. Before emailing a PDF, open the downloaded copy and check fine text at the intended viewing size. The tool can reduce image detail; its target size is not guaranteed. If forms, signatures or searchable text matter, keep the original PDF.
References & Resources
Authoritative specifications and references for the file formats this tool works with.
Compress, convert, and edit images. Support PNG, JPG, WebP, AVIF, GIF and more formats.