Supported image formats
PNGful processes images with your browser's own decoders plus a few lazily-loaded libraries (TIFF and HEIC). Because support varies slightly between browsers, every tool also feature-detects at runtime and tells you plainly when something isn't available in your browser — no silent failures.
Input formats
| Format | Extensions | Notes |
|---|---|---|
| PNG | .png | Lossless format with full transparency — ideal for graphics, logos and screenshots. |
| JPEG | .jpg, .jpeg, .jfif | The universal photo format — small files, adjustable quality, no transparency. |
| WebP | .webp | Modern web format that beats JPEG and PNG on size, with transparency support. |
| AVIF | .avif | The newest web format with the best compression — supported by all modern browsers. Decoding requires a modern browser (2021+). |
| GIF | .gif | Legacy format limited to 256 colors — mostly used for simple animations. Animated GIFs are processed as their first frame. |
| BMP | .bmp | Uncompressed Windows bitmap — very large files, best converted to PNG. |
| TIFF | .tif, .tiff | Print and scanning format — high quality but not viewable in most browsers. First page of multi-page files; decoded by a library. |
| HEIC | .heic, .heif | Apple's photo format — efficient, but many sites and apps don't accept it. Decoded by a library loaded on demand — the first HEIC file takes a moment longer. |
| SVG | .svg | Vector format that scales to any size — convert to PNG for fixed-pixel uses. Rasterized safely — scripts inside SVG files are never executed. |
Output formats
| Format | Best for | Browser support |
|---|---|---|
| PNG | Lossless format with full transparency — ideal for graphics, logos and screenshots. | All modern browsers. |
| JPEG | The universal photo format — small files, adjustable quality, no transparency. | All modern browsers. |
| WebP | Modern web format that beats JPEG and PNG on size, with transparency support. | Encoding works in Chrome, Edge, Firefox and recent Safari; tools detect support and fall back clearly. |
| ICO | Favicons — generated by the favicon tool with 16/32/48 px sizes embedded. | All browsers. |
| ZIP | Multi-file downloads from batch tools, favicon packages and responsive image sets. | All browsers. |
Not supported (yet)
- AVIF output — no browser exposes a dependable AVIF encoder yet; AVIF input works fine.
- Animated output — animated GIF/WebP inputs are processed as a single frame.
- RAW camera formats (CR2, NEF, ARW) — convert to JPEG/TIFF first.
- PDF — a future enhancement for image extraction.
Want to convert something specific? Start at the image converter or browse all tools.