Click the upload area above or drag and drop your PNG file. Enconvert accepts PNG files up to 5 MB on the free tier and up to 150 MB on paid plans. Your file is processed securely and deleted automatically after conversion.
Convert PNG to WebP Online - Free, Smaller Files & Same Quality
Convert PNG to WebP free with Enconvert. Cut image file size by up to 50% with lossless compression and transparency support. No sign-up, no watermarks. API available for developers.
Click to upload or drag and drop
Accepts PNG
Result
How to Convert PNG to WebP
1
Upload Your PNG File
2
Convert PNG to WebP
Enconvert converts your PNG to a WebP file in under 5 seconds. The output preserves transparency and visual quality while significantly reducing file size — typically 25-50% smaller than the original PNG. No settings to configure — the conversion is instant and automatic.
3
Download Your WebP File
Your converted WebP file is ready instantly. Click the download button to save it to your device. WebP files are supported by all modern browsers including Chrome, Firefox, Safari, and Edge. Download links stay active for 1 hour on the free tier.
Why Convert PNG to WebP?
WebP is a modern image format developed by Google that combines the best of both PNG and JPG — lossless compression with transparency support like PNG, but at dramatically smaller file sizes.
Smaller files, faster websites: WebP files are 25-35% smaller than equivalent PNG files when using lossless compression, and up to 50% smaller with lossy compression at visually identical quality. Google's PageSpeed Insights and Lighthouse specifically recommend WebP over PNG, and Core Web Vitals scores improve directly when images load faster. For websites serving hundreds of images, the bandwidth savings are substantial.
Full transparency support: Unlike JPG, WebP supports alpha transparency — making it a true drop-in replacement for PNG in web contexts. Logos, icons, UI elements, and any image with a transparent background convert cleanly from PNG to WebP without losing the alpha channel.
The modern web standard: WebP is supported by all major browsers: Chrome (since 2014), Firefox (since 2019), Safari (since 2020), and Edge. As of 2026, over 97% of web users can view WebP images natively. Content delivery networks like Cloudflare, Fastly, and AWS CloudFront auto-serve WebP when supported — making it the de facto format for web image delivery.
SEO and performance advantage: Google has confirmed that page speed is a ranking factor. Switching from PNG to WebP reduces image payload, which directly improves Largest Contentful Paint (LCP) — one of the three Core Web Vitals that influence search rankings. For e-commerce sites, blogs, and media-heavy pages, this conversion can measurably improve both SEO and user experience.
When to keep PNG instead: If you need maximum compatibility with legacy software (older desktop apps, print workflows, or systems that don't support WebP), PNG remains the safer choice. For anything delivered through a web browser — which is most use cases today — WebP is the better format.
PNG vs WebP
| Feature | PNG | WebP |
|---|---|---|
| Compression | Lossless only | Lossless and lossy options |
| File Size (lossless) | Baseline | 25-35% smaller than PNG |
| File Size (lossy) | N/A | Up to 50% smaller than PNG |
| Transparency | Full alpha channel | Full alpha channel |
| Browser Support | All browsers | 97%+ of browsers (Chrome, Firefox, Safari, Edge) |
| Best For | Legacy compatibility, print, desktop apps | Web delivery, mobile apps, performance optimization |
| Animation | No (use APNG) | Yes - animated WebP replaces GIF |
| Color Depth | Up to 48-bit | Up to 32-bit |
| Google PageSpeed | Flagged as "server next-gen format" | Recommended format |
| Encoding Speed | Fast | Slightly slower to encode |
Frequently Asked Questions
Not if you use lossless WebP compression — which is what Enconvert uses by default. Lossless WebP produces a pixel-identical image to the original PNG, just in a smaller file. The only difference is the compression algorithm, which is more efficient than PNG's DEFLATE compression. Even with lossy WebP compression, the quality reduction is imperceptible for most images while delivering even greater file size savings.
Yes. WebP fully supports alpha transparency, making it a direct replacement for PNG in web contexts. Logos, icons, product images with transparent backgrounds, and UI elements all convert from PNG to WebP without losing their transparent areas. This is a key advantage WebP has over JPG, which does not support transparency at all.
All major modern browsers support WebP: Google Chrome (since 2014), Mozilla Firefox (since 2019), Apple Safari (since macOS Big Sur and iOS 14 in 2020), and Microsoft Edge (since 2018). As of 2026, over 97% of global web users can view WebP images natively. The only environments that lack WebP support are some legacy desktop applications and older versions of Internet Explorer, which is no longer maintained by Microsoft.
With lossless compression, WebP files are typically 25-35% smaller than equivalent PNG files. With lossy compression at near-identical visual quality, WebP files can be up to 50% smaller. For example, a 5 MB PNG screenshot might compress to 3.2 MB as lossless WebP or 2.5 MB as lossy WebP — with no visible difference to the human eye. For websites serving many images, this translates to faster page loads and lower bandwidth costs.
Enconvert's free tier accepts PNG files up to 5 MB with 100 conversions per month — no sign-up or credit card required. The Starter plan ($19/mo) supports 2,000 conversions with 15 MB file limits, the Pro plan ($49/mo) supports 10,000 conversions with 50 MB limits, and the Business plan ($149/mo) supports 50,000 conversions with 150 MB limits. For bulk conversion, use the API with integration examples in Python, JavaScript, and cURL.
Integrate via API
Automate PNG to WebP conversions in your application with just a few lines of code.
curl -X POST "https://api.enconvert.com/v1/convert/png-to-webp" \
-H "X-API-Key: sk_YOUR_SECRET_KEY" \
-F "file=@input_file" \
-o output_file