Image Format Converter - PNG, JPG, WebP
Convert images between PNG, JPG, and WebP formats online for free. No software required - Just upload and download.
Drop an image here or click to select
PNG, JPG, WebP, GIF, BMP - Up to 15 MB
Which Image Format Should You Use?
| Format | Best For | Transparency | File Size |
|---|---|---|---|
| PNG | Logos, screenshots, graphics with text | Yes | Larger |
| JPG | Photographs, complex images | No | Small |
| WebP | Web images, modern browsers | Yes | Smallest |
| GIF | Simple animations, 256-color graphics | 1-bit only | Small for simple |
Rule of thumb: Use PNG for images that need transparency or sharp edges. Use JPG for photos where smaller file size matters. Use WebP for web pages where browser support isn't a concern (all modern browsers support it).
Converting Image Formats in GIMP
In GIMP, use File → Export As to convert between formats. Simply change the file extension in the filename and GIMP will automatically use the correct format settings. After clicking Export, a format-specific dialog lets you configure quality and advanced options.
To convert many images at once, use the BIMP plugin (Batch Image Manipulation Plugin) which supports batch format conversion.
Conversion Choices That Affect Quality
Changing formats is not always neutral. JPG removes transparency and uses lossy compression. PNG preserves hard edges and transparency, but can be much larger for photos. WebP is usually smaller than both, but some older desktop workflows still expect PNG or JPG.
| Source image | Best export | Reason |
|---|---|---|
| Logo with transparent background | PNG or WebP | Preserves alpha transparency and crisp edges. |
| Camera photo | JPG or WebP | Compresses natural detail efficiently. |
| Screenshot with text | PNG | Keeps interface text sharp and avoids JPG artifacts. |
| Website image | WebP | Often gives the smallest file at similar visual quality. |
Format Decision Guide
Not sure which format to convert to? Find your situation below.
Photo for a website or blog post
Convert to WebP (best size) or JPG at quality 80-85 (best compatibility). Both keep photos looking sharp at a fraction of PNG size.
Logo, screenshot, or graphic with text
Convert to PNG. JPG compression blurs sharp edges and makes text fuzzy. PNG keeps hard lines pixel-perfect.
Image with a transparent background
Convert to PNG or WebP. JPG has no alpha channel and fills transparency with solid white. Verify the result with the transparency checker.
Image you plan to keep editing
Do not convert at all. Keep the original (or a GIMP .xcf master) and only convert the final copy. Repeated lossy conversion degrades quality every time. The full format rules are in the save vs export guide.
Email attachment with a size limit
Convert to JPG, then run it through the image compressor to shrink it further before sending.
PNG vs JPG vs WebP at a Glance
| Property | PNG | JPG | WebP |
|---|---|---|---|
| Compression | Lossless | Lossy | Both |
| Transparency | Yes | No | Yes |
| Animation | No | No | Yes |
| Typical photo size (1080p) | 2-5 MB | 200-500 KB | 150-400 KB |
| Best for | Graphics, screenshots | Photos, email | Modern websites |
Related Tutorial
Learn the differences between PNG, JPEG, WebP, and TIFF and when to use each format for web and print.