How to convert an image
- Drag your images onto the box above, or click to browse. You can add many files at once, and they are all converted to the same target format.
- Choose Convert to: PNG, JPG or WebP. For JPG and WebP a Quality slider appears (10% to 100%, starting at 90%). Each row shows the source format, the new format and the resulting file size, and it updates as you move the slider.
- Click Download on any image, or Download all to save them together. The file keeps its name with the new extension.
Which format should I choose?
PNG is lossless and supports transparent backgrounds, so it suits logos, icons, screenshots and anything with sharp text. JPG makes small files from photographs but has no transparency. WebP can do both: it is usually smaller than JPG at a similar look, and it supports transparency. All current browsers display it, though some older editing programs and upload forms still refuse WebP files.
To see why the choice matters, picture a 3000×2000 photograph. Saved as JPG at 90% it is typically around 1 to 2 MB. The same pixels saved as PNG are often 6 to 10 MB, because PNG must preserve every pixel exactly and photographs have no flat areas to compress. Going the other way, a flat screenshot with big blocks of colour may be smaller as PNG than as JPG, and the JPG version will show fuzzy halos around text.
What the Quality slider does
Quality only applies to the lossy formats, JPG and WebP, which is why the slider disappears when PNG is selected. Lower numbers discard more fine detail to save space. As a rule of thumb, 90% looks identical to the source for most photos, 80% is a good compromise for web pages, and below 70% blocky artefacts start to appear around edges and in smooth gradients such as skies. The sensible approach is to lower the slider until you notice a difference, then step back up a little.
Transparency, and what converting cannot fix
- PNG or WebP to JPG: transparent areas are filled with solid white, because JPG cannot store transparency. A logo that looks fine on a dark page will show a white box once converted. Keep PNG or WebP for anything that must sit on varied backgrounds.
- JPG to PNG: the file gets larger, but it does not get better. PNG preserves what the JPG already contains, including its compression artefacts. It is useful if you need to edit repeatedly without further loss, not for restoring quality.
- JPG to JPG at a lower quality: this works for shrinking a file, but each pass is another round of lossy compression. Convert from your original once rather than re-saving the same file several times.
- Size stays the same: the converter changes the format only. A 4000×3000 image stays 4000×3000. To reduce dimensions, use the image resizer.
Everyday conversions
- PNG screenshots to JPG before attaching to an email or form that has a strict size cap.
- JPG photos to WebP for a website. Commonly cited comparisons put lossy WebP at roughly a quarter to a third smaller than JPG at a similar visual quality, which speeds up page loads.
- WebP to PNG or JPG when an image saved from a website will not open in an older application, or when a platform rejects WebP uploads.
Limits of this tool
The whole batch goes to one output format at a time. Metadata such as EXIF is not preserved, because the picture is redrawn and re-encoded. Animated images are not supported: only a single still frame is drawn, so use a dedicated tool for animated GIF or WebP files. Whether a format can be written depends on your browser; recent Chrome, Edge and Firefox can save WebP, and if WebP output looks wrong or is unavailable in your browser, choose PNG or JPG instead.
Is it private and safe?
Yes. Toolyard converts images inside your browser using your own device. Your files are never uploaded to any server, so nothing is stored or seen by anyone. It even works offline once the page is loaded.
Related guides
For more background, see JPG vs PNG vs WebP, how to convert PNG to JPG and lossy vs lossless image compression. There are also dedicated tools for PNG to JPG, JPG to PNG and WebP to PNG.
Frequently asked questions
How do I convert PNG to JPG?
Drop your PNG files, choose JPG in the Convert to menu and click Download. Any transparent areas become solid white, because JPG has no transparency. Use the quality slider if you want a smaller file.
Will I lose quality?
Converting to PNG does not lose anything beyond what the source already lacks. JPG and WebP are lossy, so each conversion discards a little detail. At 90% the difference is hard to see on most photos, but repeatedly converting the same file to JPG will gradually degrade it.
Why is my PNG so much larger than the JPG?
PNG stores every pixel exactly, while JPG throws away detail the eye barely notices. For photographs that gap is large, often five times or more. For flat graphics and screenshots, PNG can be the smaller choice.
Does converting JPG to PNG improve the image?
No. The PNG will look the same as the JPG and will usually be much larger, because it preserves the JPG's existing compression artefacts. The benefit is that further editing and re-saving as PNG will not add new loss.
Does converting change the image dimensions?
No. The output has exactly the same width and height as the input. If you also need smaller dimensions, convert first and then use the image resizer, or the other way around.
Can I convert animated GIFs or HEIC files?
This converter handles still images that your browser can open, typically PNG, JPG and WebP. Animated files are reduced to a single still frame. HEIC photos from iPhones are not opened by most desktop browsers, so use the dedicated HEIC to JPG tool for those.
Are my images uploaded?
No. Everything runs on your device and nothing is sent anywhere. Your files stay private.
Is it free?
Yes. It is completely free, with no watermarks and no sign-up.