Design May 20, 2026 · by MetisTools Team
Image Format Converter: Convert PNG, JPEG & WebP (Free Online Tool)
#Image#Format#Converter#PNG#JPEG#WebP
Different situations call for different image formats. Photos look best as JPEGs, logos need PNG transparency, and websites demand WebP for performance. An image format converter lets you switch formats in seconds without downloading software.
Use the MetisTools free image format converter to transform your images between PNG, JPEG, and WebP — all in your browser.
Which Image Format Should You Choose?
| Format | Best For | Transparency | Compression |
|---|---|---|---|
| JPEG | Photos, complex images | No | Lossy |
| PNG | Logos, icons, screenshots | Yes | Lossless |
| WebP | Web graphics (modern) | Yes | Both |
JPEG (.jpg)
- Best for photographs and images with gradients
- Small file sizes at high quality
- No transparency support
- Every re-save loses a bit of quality
PNG (.png)
- Best for logos, icons, and images with text
- Lossless — exact pixel preservation
- Full alpha transparency
- Larger files than JPEG for photos
WebP (.webp)
- Modern format supported by all major browsers
- 25-35% smaller than JPEG/PNG
- Supports both lossy and lossless
- Supports transparency and animation
How to Convert Image Formats
- Upload your image — JPEG, PNG, or WebP (up to 100MB)
- Select the target format — choose from JPEG, PNG, or WebP
- Adjust quality — set 1-100 (ignored for PNG — it’s always lossless)
- Optional resize — set a max width to downscale during conversion
- Click Convert — the converted image appears instantly
- Download — save in the new format
When to Convert Between Formats
- PNG to JPEG — when you need smaller file size and don’t need transparency
- JPEG to PNG — when you need transparency or lossless editing (note: file will be larger)
- Anything to WebP — when optimizing for web performance
- WebP to JPEG/PNG — when you need compatibility with older software
Format Conversion Tips
- JPEG to PNG won’t restore quality — the JPEG compression artifacts are permanent
- PNG to JPEG loses transparency — the background becomes white
- WebP is the future — if your audience uses modern browsers, use WebP
- Resize during conversion — kill two birds with one stone
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