Image Format Converter
Convert images between PNG, JPEG, and WebP. Adjust quality and see the file size difference in real time — all in your browser.
Drop any image here
PNG · JPEG · WebP · BMP · GIF
Frequently Asked Questions
What is the difference between PNG, JPEG, and WebP?
PNG is lossless and supports transparency — best for logos, screenshots, and graphics. JPEG is lossy — best for photos where a slightly lower quality is acceptable in exchange for smaller files. WebP is a modern format from Google that offers both lossless and lossy compression, typically 25–35% smaller than JPEG at similar quality.
When should I use WebP?
WebP is ideal for web images. All modern browsers support it, and the smaller file size improves page load times and Core Web Vitals scores.
Does my image get uploaded to a server?
No. All conversion happens in your browser using the HTML5 Canvas API. Your files never leave your device.
Why does PNG output sometimes produce a larger file?
PNG uses lossless compression, so it preserves every pixel exactly. Photos converted from JPEG to PNG are almost always larger because JPEG's lossy compression cannot be reversed.
PNG vs JPEG vs WebP
| Feature | PNG | JPEG | WebP |
|---|---|---|---|
| Compression | Lossless | Lossy | Both lossless & lossy |
| Transparency | Yes (alpha) | No | Yes (alpha) |
| File size | Larger | Smaller | Smallest (25–34% smaller than JPEG) |
| Best for | Screenshots, icons | Photos, complex gradients | Web images (modern browsers) |
| Browser support | Universal | Universal | Chrome 32+, Firefox 65+, Safari 14+ |
Format Selection Guide
- Use WebP for web — all modern browsers support it and it offers better quality at smaller sizes than both PNG and JPEG.
- Use PNG for logos and icons — when you need transparency or when the image has sharp edges and flat colours that compress poorly with JPEG.
- Use JPEG for photos — JPEG quality 75–85 strikes a good balance between visual quality and file size for photographs.
- Provide PNG fallback — for critical images, use
<picture>with a WebP source and a PNG/JPEG fallback for older browsers.