Compress WebP Online — Free & Instant
Compress WebP images online for free. Re-optimise WebP files with custom quality settings. No upload needed — fully private, browser-based.
Drop your image here
or click to browse
How to Compress WEBP Images
WebP images from external sources are not always optimally compressed. A WebP downloaded from a website, a design tool export, or a CMS may have been exported at a default quality that is higher than necessary for your specific use case. Re-compressing with a precisely tuned quality setting gives you a smaller, more efficient file.
Common scenarios where WebP re-compression is valuable: you receive WebP assets from a third party at quality 95 (overly high for web delivery), you export WebP from a design tool at its default quality, or you want to normalise the compression settings across a set of images that came from different sources.
WebP supports both lossy and lossless modes. For photographs and complex imagery, lossy WebP at quality 80–85 provides excellent visual quality with small file sizes. For graphics, logos, and images with transparency and sharp edges, lossless WebP (quality 100) preserves every pixel exactly.
One consideration when re-compressing WebP: since WebP is already a lossy format (assuming the original was lossy), re-encoding at a lower quality applies a second round of compression artefacts. Use quality 80+ to keep any additional quality loss minimal. For critical images, work from the original lossless source (PNG, TIFF, or RAW) rather than re-compressing an already-lossy WebP.
OptiPic lets you dial quality precisely from 0 to 100 and shows you the output size before you download. Aim for a compression ratio of 2–4× compared to the original file size while keeping quality at 80+. This is the practical sweet spot for most web images.
Frequently Asked Questions
- Can I further compress a WebP that is already compressed?
- Yes, but with diminishing returns and some quality cost. Re-compressing a lossy WebP at a lower quality setting applies another round of compression. Use quality 80+ to minimise additional quality loss. For the best results, start from the original lossless source.
- What quality setting is recommended for WebP on the web?
- Quality 80–85 is the standard recommendation for web delivery. At 82 (OptiPic's default), WebP images look identical to originals on screen while achieving optimal file sizes. For UI elements and graphics, quality 90 is a safer default.
- Does WebP support lossless compression?
- Yes. Setting quality to 100 in OptiPic produces a lossless WebP, which stores every pixel exactly like PNG but typically in a smaller file. This is ideal for logos, icons, and graphics where perfect fidelity is required.
- Is WebP better than JPEG for all types of images?
- For web delivery, yes — WebP is better than JPEG for photographic content (25–35% smaller) and dramatically better for graphics with transparency. The only reason to choose JPEG over WebP today is compatibility with older software or non-browser contexts.