"Format not supported" when sending an image, a design needing JPG, iPhone HEIC photos that won't open, web pages needing WebP for speed... image format conversion is a high-frequency need. With so many formats and tools, what's the best way to convert? This guide gives you a practical image converter reference.
Choosing among common formats
| Format | Traits | Best for |
|---|---|---|
| JPG | small, universal | photos, web, sharing |
| PNG | transparency | screenshots, logos, design |
| WebP | even smaller | web optimization, modern browsers |
| GIF | animation | animated images, memes |
| HEIC | Apple format | iPhone photos (needs conversion) |
| SVG | vector scaling | icons, logos (crisp at any size) |
Rule of thumb: JPG for photos, PNG for transparency, WebP for web, SVG for icons.
When to convert formats
- HEIC to JPG: iPhone photos won't open on Windows/Android
- WebP to JPG: older devices or software don't support WebP
- PNG to JPG: when transparency doesn't matter, JPG is smaller
- JPG to PNG: need transparency or lossless editing
- Batch conversion: unify a batch of images for asset cleanup
Recommended online converter
The PixelForge Format Convert tool supports mainstream format conversions:
- Upload images (JPG/PNG/WebP/GIF/HEIC, etc.)
- Choose the target format
- Convert and download in one click
Processing happens in-browser — images never upload to a server, so it's fast and private.
Combining with other tools
- Convert then compress: if still large, run through image compression one level
- Convert then crop: adjust dimensions with image cropping after converting
- Convert then watermark: protect published work with the watermark tool