TontonTools

PNG to WebP

Convert PNG to WebP — same quality and transparency, ~30% smaller.

100% Free No signup Privacy-friendly Image Tools
Updated Sep 2026

Drag & drop an image here, or

Share X / Twitter Facebook LinkedIn WhatsApp

How to use PNG to WebP

  1. Upload the PNG — transparency and all.
  2. Convert and download the WebP — typically 25-35% smaller, alpha intact.
  3. Deploy on your site — modern browsers all render WebP natively.
  4. Keep the PNG as the editing master — export WebP fresh after changes.

What is PNG to WebP?

A PNG to WebP converter re-encodes PNG images in Google's WebP format — keeping everything PNG offers (lossless option, full alpha transparency) at roughly 25–35% smaller files, or far smaller still in WebP's lossy mode where slight loss is acceptable.

This is the standard modern web optimization: WebP has universal support in current browsers (Chrome, Firefox, Safari, Edge — the IE-era caveats are history), and page-speed tooling like Lighthouse actively flags PNGs that should be WebP. Same picture, fewer bytes, better Core Web Vitals.

About the PNG to WebP

Upload your PNG, convert, download the WebP — transparency preserved.

Where the savings land: web images of every kind (logos with alpha, illustrations, UI graphics, screenshots — the classic PNG populations), where 30% off every image compounds into visibly faster pages and lower bandwidth bills; e-commerce catalogs (hundreds of product PNGs → real hosting savings); and email/asset pipelines that accept WebP. Lossy WebP is the deeper cut for photographic PNGs — often 80–90% smaller than the PNG at visually transparent quality.

Workflow guidance: keep PNG masters for editing (edit → export WebP for delivery is the pattern), and for public sites consider serving WebP with PNG fallback via the <picture> element — though in 2026, WebP-only is defensible for most audiences. Uploads are processed and returned, not stored.

Frequently Asked Questions

Lossless WebP: ~25-35% smaller than equivalent PNG. Lossy WebP (fine for photos): commonly 70-90% smaller. Per-image results vary with content — flat-color graphics compress best.
Fully — WebP supports complete alpha channels in both lossless and lossy modes. Logos and overlays convert with their transparency intact, which is what makes this conversion a free win.
All current ones — Chrome/Edge/Firefox for years, Safari since 14 (2020). The compatibility hesitation is obsolete for mainstream audiences; legacy-enterprise-IE contexts are the lone exception.
Delivery copies, yes — it's among the highest-ROI page-speed changes. Keep original PNGs as source files, and mind CMS integration: many platforms/CDNs (including Cloudflare) can auto-serve WebP.
AVIF compresses further still but encodes slower and support matured later. WebP is today's safe default; AVIF-with-WebP-fallback is the enthusiast setup. Either beats shipping PNGs.

We use cookies for analytics and to keep the tools free via ads. See our Privacy Policy.