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Rebytify Rebytify
Free · Private · Browser-based

Bulk PNG to WebP Converter

Batch-convert many PNGs at once-free, with no signup, and no upload because everything runs locally in your browser. Rebytify works well as a bulk image converter free for quick WebP exports across a whole shoot or asset pack. WebP was designed by Google specifically to replace both PNG and JPG on the web. For images with transparency, lossless WebP is 26% smaller than PNG on average. WebP lossy produces files 25-35% smaller than PNG at the same visual quality. Critically, WebP supports alpha transparency - so you can convert logos, icons, and UI graphics without worrying about white backgrounds. Browser support is now effectively universal (Chrome, Firefox, Safari 14+, iOS 14+).

Drop images here

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PNG, JPG, WebP, AVIF, HEIC · Larger batches may take longer to process

Target size

Output format

PNG→WebP·Conversion happens entirely in your browser

Other conversions

PNG to JPGPNG to AVIFJPG to PNGJPG to WebPJPG to AVIFWebP to PNGWebP to JPGWebP to AVIFAVIF to PNGAVIF to JPGAVIF to WebPHEIC to PNGHEIC to JPGHEIC to WebPHEIC to AVIF

Frequently asked questions

Does WebP support transparency like PNG?
Yes - WebP supports an 8-bit alpha channel, the same as PNG. You can convert logos, icons, and images with transparent backgrounds to WebP without any change to the transparency.
How much smaller will my WebP be compared to PNG?
For lossless WebP, expect 20-30% smaller files than PNG. For lossy WebP at equivalent visual quality, savings are typically 30-50%. Photographic images see the biggest gains; simple flat-colour graphics see less.
Is WebP supported in all browsers?
WebP has been supported in all major browsers since 2020 - Chrome, Firefox, Edge, Safari 14+, and iOS Safari 14+. For the tiny number of users on very old browsers, consider a PNG fallback via the HTML <picture> element.