PNG to WebP Converter
Convert PNG to WebP for 50–80% smaller files. Free online, no software needed. Up to 50 MB.
Drop your PNG file hereTap to choose your PNG file
or
Also supports JPG, BMP, TIFF, GIF, HEIC, PSD • Max 50 MB
How to Convert PNG to WebP
Upload
Drag and drop your PNG file into the converter above, or click Choose PNG File to browse your device.
Convert
Click Convert to WebP. Our server converts your image in seconds using high-quality encoding.
Download
Click Download WebP to save the converted file. That's it — no registration, no email required.
Convert PNG to WebP on Any Device
On Windows 10/11
Windows web developers and site owners often accumulate hundreds of PNG screenshots, icons, and graphics in project folders. Google PageSpeed Insights flags every unoptimized PNG as an opportunity to "serve images in next-gen formats" — and WebP is Google's recommended solution. Rather than installing Node.js build tools or configuring ImageMagick locally, you can batch-convert PNGs to WebP directly in your browser. WordPress users on Windows benefit especially: since WordPress 5.8, WebP uploads are natively supported in the Media Library, so you can convert your PNGs here and upload the smaller WebP files directly to your site for faster Core Web Vitals scores.
On Mac
Mac users building websites with tools like VS Code, Sublime Text, or local WordPress environments frequently need to optimize images for web delivery. macOS Preview can export to many formats but does not support WebP output natively. Web developers working on Squarespace, Wix, or Shopify sites can convert their PNG assets to WebP here and re-upload them for significantly faster page loads. For developers using macOS Retina displays, it's worth noting that WebP handles high-DPI images efficiently — a 2x Retina PNG screenshot that's 3 MB can shrink to under 500 KB as WebP with no visible quality loss.
On iPhone / iPad
iPhone screenshots are saved as PNG by default, and they're often larger than necessary for web use. If you manage a blog or website from your phone, converting those screenshots to WebP before uploading can cut image sizes by 50–80%. iOS has no built-in image format converter, making a browser-based tool the easiest option. Simply save your PNG to the Files app, open this page in Safari, upload the file, and download the optimized WebP — ready to post to your CMS or share with your development team.
On Android
Android screenshots and camera images often end up as PNG files, especially screenshots. If you manage a website or online store from your phone, converting to WebP before uploading to your CMS reduces page load times and mobile data usage. WebP is Google's own format — Android has had native WebP support since Android 4.0, so converted images display perfectly on all Android devices. Use Chrome or any browser to convert your PNGs here without installing additional apps.
On Chromebook
ChromeOS is a natural fit for WebP conversion since both Chrome and ChromeOS are Google products with full WebP support. School and business Chromebooks often have restricted app installation, making browser-based tools the only practical option for image optimization. If you're building a website or updating a CMS from a Chromebook, converting PNG screenshots and graphics to WebP directly in your browser saves storage space and produces web-ready images without any software installation or Linux container setup.
What is PNG?
PNG (Portable Network Graphics) is a lossless image format that preserves every pixel of your original image without any compression artifacts. It was created in 1996 as a patent-free alternative to GIF.
PNG excels at images with sharp edges, text, transparency, and flat colors — making it ideal for screenshots, logos, icons, UI elements, and diagrams. Its lossless compression means the image quality is always perfect, but the trade-off is larger file sizes compared to lossy formats. PNG is universally supported by every browser, operating system, and image editor in existence.
Common PNG Use Cases
Screenshots — both Windows (Snipping Tool, Print Screen) and macOS (Cmd+Shift+4) save screenshots as PNG by default. Logos and icons — PNG's transparency support and lossless quality make it the standard for brand assets. Web graphics — buttons, banners, and UI elements are typically created as PNG. Digital art — illustrators and designers export to PNG for pixel-perfect fidelity.
What is WebP?
WebP is a modern image format developed by Google in 2010, designed specifically for the web. It supports both lossy and lossless compression, transparency (alpha channel), and even animation — combining the best features of JPEG, PNG, and GIF in a single format.
Lossless WebP images are 26% smaller than equivalent PNG files. Lossy WebP images can be up to 80% smaller than PNG while remaining visually near-identical. Google actively recommends WebP through its PageSpeed Insights and Lighthouse tools, making it the preferred format for web performance optimization.
WebP Browser Support
WebP is supported by 97%+ of browsers worldwide. Chrome has supported WebP since 2014. Firefox added support in version 65 (January 2019). Edge supports WebP natively. Safari added WebP support in version 14 (September 2020) on both macOS and iOS. Opera has supported WebP since 2013. The only browsers without WebP support are Internet Explorer 11 and Safari versions older than 14 — both of which represent less than 3% of global web traffic.
PNG vs WebP: Quick Comparison
| Feature | PNG | WebP |
|---|---|---|
| Compression | Lossless only | Lossless OR Lossy |
| File size (lossless) | Baseline | ~26% smaller |
| File size (lossy) | N/A (PNG is lossless) | Up to 80% smaller |
| Transparency | Yes (alpha channel) | Yes (alpha channel) |
| Animation | Limited (APNG) | Yes (replaces GIF) |
| Color depth | 48-bit | 32-bit |
| Browser support | Universal (100%) | 97%+ (all modern browsers) |
| WordPress | Always supported | Supported since WP 5.8 |
| Google PageSpeed | Flagged as “serve in modern format” | Recommended format |
| CDN support | Universal | Cloudflare, AWS CloudFront, etc. |
| Best for | Maximum compatibility | Web performance |
Lossless vs Lossy WebP: Understanding the Two Modes
WebP is unique among image formats because it supports both lossy and lossless compression in the same format. Understanding the difference helps you choose the right mode for your images.
Lossless WebP preserves every single pixel exactly as it appears in the original PNG. The resulting image is mathematically identical to the source — no information is lost. Despite this, lossless WebP files are typically 26% smaller than equivalent PNG files thanks to more advanced compression algorithms including predictive coding and entropy encoding techniques that PNG's DEFLATE algorithm doesn't use.
Lossy WebP uses predictive coding similar to VP8 video compression. It analyzes neighboring pixel blocks to predict values, then encodes only the differences. This approach can reduce file sizes by up to 80% compared to PNG. At high quality settings (quality 80–90), the visual difference from the original is virtually imperceptible to the human eye, even when zooming in. Lossy WebP is ideal for photographs, complex graphics, and hero images where absolute pixel perfection isn't required.
Our converter uses high-quality lossy WebP by default, which delivers the best balance of dramatic file size reduction and visual fidelity. For most web use cases — blog images, product photos, banners, and backgrounds — lossy WebP produces images that look identical to the PNG original at a fraction of the file size.
Why Convert PNG to WebP?
Faster page loading (Core Web Vitals)
Images are typically the heaviest assets on a web page. Converting PNG to WebP can reduce image weight by 50–80%, directly improving your Largest Contentful Paint (LCP) — one of Google's three Core Web Vitals metrics that affect search rankings. Faster LCP means better user experience and higher SEO scores.
Better Google PageSpeed score
Google PageSpeed Insights and Lighthouse specifically flag PNG images with the recommendation to "serve images in next-gen formats." Converting to WebP directly addresses this audit item, often improving your PageSpeed score by 10–30 points depending on how many images your pages contain.
Lower bandwidth costs
Smaller image files mean less data transferred from your server. For high-traffic websites, switching from PNG to WebP can reduce monthly bandwidth consumption significantly — saving real money on hosting and CDN costs, especially for image-heavy sites like e-commerce stores, portfolios, and blogs.
Smaller WordPress media library
WordPress sites accumulate hundreds or thousands of images over time. Each PNG uploaded at 2–5 MB adds up quickly, consuming server storage and slowing down backups. WebP versions of the same images at 200–500 KB keep your media library lean, your backups fast, and your hosting costs under control.