PNG to WebP Converter
Cut PNG asset sizes 26% in lossless WebP — or up to 80% for photographic PNGs in lossy mode — while keeping full transparency. Ideal for design pipelines, app icons, and CMS hero images.
If you are serving PNG images on the web, converting to WebP is one of the highest-leverage performance wins available — typically 25–35% smaller files at the same visual quality, supported in every modern browser. You will most often encounter PNG files as screenshots from Windows, macOS, Linux, iOS, and Android, logos, icons, and UI mockups exported from Figma, Sketch, Illustrator, or Photoshop, graphics with transparency that need to overlay on other content, and WebP is the obvious destination when your goal is website assets. Converter.Plus runs the whole PNG→WebP conversion locally in your browser — there is no upload, no signup, no watermark, and no per-file size cap. Drop a single file or a whole batch and grab the results as individual downloads or a single ZIP.
Drop PNG files here
or click to select from your device
Drag up to 50 files·or a .zip of images
How to convert PNG to WebP
- Open the PNG to WebP converter: Go to converter.plus/png-to-webp in any modern browser on your computer or phone.
- Add your PNG files: Drag and drop your PNG files onto the upload area, or click it to browse your device and select them.
- Choose output format and quality: Select your preferred quality setting. The default is optimized for a great balance of file size and visual quality.
- Click Convert: Click the Convert button. Converter.Plus processes all files instantly in your browser — no upload or waiting required.
- Download your WebP files: Download each converted image individually, or click Download All to save a ZIP archive containing all converted files.
Why use this PNG to WebP converter
- ✓100% private — your PNG files are converted in your browser and never uploaded to a server.
- ✓Free with no signup, no watermark, no per-file size limit, and no daily quota.
- ✓WebP output is typically 25–50% smaller than JPG at the same visual quality, ideal for fast websites and lower bandwidth.
- ✓Batch ready: drop dozens of PNG files at once and download them individually or as a single ZIP.
- ✓Works offline once the page has loaded — the conversion code is cached as a Progressive Web App.
- ✓No tracking pixels and no ad-personalisation cookies on the conversion result page.
About PNG → WebP conversion
PNG is indispensable for pixel-perfect design work, but its large file sizes make it impractical for web delivery. Converting PNG assets — illustrations, icons, screenshots, UI elements — to WebP gives you 25–34% smaller files in lossless mode while preserving every pixel and any transparency. For photographs in PNG, WebP lossy mode can reduce file sizes by 70–80% compared to PNG. The result: the same sharp, transparent graphics at a fraction of the bandwidth cost.
If you are serving PNG images on the web, converting to WebP is one of the highest-leverage performance wins available — typically 25–35% smaller files at the same visual quality, supported in every modern browser.
Portable Network Graphics (PNG) was standardized by the W3C in 1996. PNG was designed as a free, lossless replacement for the patent-encumbered GIF. It stores every pixel exactly, supports a full alpha channel for transparency, and remains the default lossless format in design tools, browsers, screenshots, and operating system UIs. You will most often encounter PNG files as screenshots from Windows, macOS, Linux, iOS, and Android, logos, icons, and UI mockups exported from Figma, Sketch, Illustrator, or Photoshop, graphics with transparency that need to overlay on other content.
About PNG to WebP Conversion
PNG is indispensable for pixel-perfect design work, but its large file sizes make it impractical for web delivery. Converting PNG assets — illustrations, icons, screenshots, UI elements — to WebP gives you 25–34% smaller files in lossless mode while preserving every pixel and any transparency. For photographs in PNG, WebP lossy mode can reduce file sizes by 70–80% compared to PNG. The result: the same sharp, transparent graphics at a fraction of the bandwidth cost.
Frequently Asked Questions
What is PNG?
A lossless image format that preserves every pixel exactly, supporting transparency — ideal for graphics, text, and precision work.
Why convert PNG to WebP?
WebP offers significantly better compression than JPG and PNG at the same visual quality — making files smaller and websites faster. It is widely supported in all modern browsers.
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Privacy & trust
- •Your PNG stays on your device. Conversion runs locally via the browser's Canvas, WebAssembly, and image-decoding APIs.
- •No account, no email, no payment information collected — Converter.Plus is free for personal and commercial use.
- •No watermarks, no upsells inside the converted WebP, and no compression caps on the output file.
- •Open-source build pipeline — every release is reproducible from the public source and pinned dependencies.