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Compress WebP

Re-compress WebP images at lower quality settings for even smaller file sizes. Ideal when you need WebP but the existing files are still too large. Free, no upload, instant.

When to compress WebP further

WebP is already an efficient format — but sometimes existing WebP files were encoded at a high quality setting and can be compressed further without meaningful visual degradation. Common scenarios include CMS-uploaded images that weren’t optimized before upload, images exported from Figma or Sketch at quality 100, or WebP files inherited from another developer’s workflow.

How much smaller can WebP get?

A WebP file encoded at quality 95 can be reduced to quality 75 with approximately 50% size reduction and minimal visible quality loss at typical web viewing sizes. The exact reduction depends on the original quality setting and image content. The before/after preview shows the visual and size difference in real time.

Alternative: convert to AVIF for maximum compression

If you need maximum compression and your audience uses modern browsers (Chrome/Firefox/Safari 16+), converting WebP to AVIF using the WebP to AVIF converter → will produce files 15–25% smaller than even optimally-compressed WebP.

Frequently asked questions

At quality 70–80 (this tool’s default), re-compression reduces file size by 30–50% with minimal visible quality loss at typical web viewing sizes. At quality 60 and below, compression artifacts become visible, especially in complex image areas. Use the before/after preview to judge the quality trade-off.
Not through quality reduction — WebP’s lossless mode stores exact pixel data and can’t be further compressed without switching to lossy mode. Tools like cwebp with the -lossless flag and -z 9 (maximum effort) can optimize lossless WebP encoding, but this requires a command-line tool rather than a browser-based converter.
AVIF achieves 15–25% better compression than WebP at equivalent quality. If your target browsers support AVIF (Chrome 85+, Firefox 93+, Safari 16+ — approximately 93% of users), use AVIF. For maximum compatibility including Safari on older macOS, WebP is the safe choice.
Yes — for social media, WebP at quality 70–75 typically produces files under 500 KB which social platforms accept. Note that most platforms (Twitter, Instagram, Facebook) re-compress uploaded images anyway, so very high quality WebP files offer little advantage over moderate-quality ones after the platform’s own compression.