Convert PNG images to modern WebP with adjustable quality and instant downloads—no uploads, 100% private.
Upload one or more PNG files (max 500MB each)
By processing, you agree to our Terms of Use
Convert PNGs to WebP while keeping transparency and sharp edges intact.
All processing runs in your browser—no uploads, no queues, instant downloads.
Dial WebP quality from 10–100% to balance crisp visuals with tiny file sizes.
Click "Choose PNG Files" or drag your PNG images into the box.
Use the WebP quality slider to shrink file size while keeping transparency.
Press "Convert to WebP" for instant WebP files. Download one by one or all together.
PNG to WebP Converter shrinks your PNGs into modern WebP files without sacrificing transparency. Everything runs locally in your browser—upload PNGs, pick a quality level, and download optimized WebP images instantly.
| Step | Process | Time |
|---|---|---|
| 1 | Load PNGs directly in your browser | Instant |
| 2 | Compress with the WebP encoder | < 3 seconds |
| 3 | Generate downloadable WebP files | Instant |
| Feature | This tool | Traditional tools |
|---|---|---|
| Privacy | ✅ 100% on-device | ❌ Server uploads |
| Transparency | ✅ Keeps alpha channel | ❌ May flatten to JPG |
| Quality control | ✅ Adjustable WebP quality | ❌ Fixed presets |
| Speed | ✅ Instant, no queues | ❌ Upload delays |
| Cost | ✅ Free, no signup | ❌ Paywalls |
| Use case | Benefit | Tip |
|---|---|---|
| 🌐 Website assets | Faster page loads with tiny WebP files | Use 70–85% quality |
| 📱 UI screenshots | Crisp UI shots that keep transparency | Use 85–95% quality |
| 📱 App icons | Preserve edges and alpha channel | Set 90–100% quality |
| 📧 Email attachments | Smaller files for quicker sending | Try 60–75% quality |
| Range | Use | Effect |
|---|---|---|
| 90-100% | Logos, icons, UI with transparency | Largest size, razor-sharp edges |
| 70-90% | General web graphics and screenshots | Balanced quality and size |
| 40-70% | Drafts, email previews, quick shares | Smallest size, lighter detail |
Your files never leave your browser. Conversion happens locally with HTML5 canvas, so sensitive assets stay private.
Trim file size for JPG and PNG
Switch PNGs to JPG when you don’t need transparency
Resize images before exporting to WebP
Convert PNG assets into modern WebP files to shrink payloads without sacrificing transparency or sharpness.
Re-encodes PNG images as WebP with optional lossless or lossy compression while keeping alpha channels intact.
Continue converting or editing images with these related tools.
Important: This tool is provided as-is for personal and commercial use. While we strive for accuracy, please verify converted files before use in production environments.