Image Converter (JPG, PNG, WebP)
Turn a picture into JPG, PNG or WebP in a couple of taps, no upload, no watermark, no sign-up.
Free forever, no sign-up and no limits, and this tool installs on its own so you can keep it on your home screen.
Choose a picture, or up to 50 at once, pick JPG, PNG or WebP, and download the converted files. It takes about three seconds, with no watermark and no upgrade prompt. Quality is adjustable for the lossy formats, with the resulting file size shown live.
How to use it
- Choose a picture, or fiftyTap the box or drop a whole folder in. Anything that opens as a picture will convert.
- Pick the formatJPG for photos, PNG for graphics and transparency, WebP for the smallest files. The choice applies to every picture you gave it.
- DownloadOne file is ready immediately, named after the original. A batch saves as a single ZIP, or one row at a time.
Why format still matters
Every image format is a set of trade-offs, and the wrong one shows up as a practical problem: the upload that gets rejected, the 8 MB email attachment, the logo with a white box around it where transparency used to be. Converting is trivial, the useful knowledge is which format each job wants.
JPG is for photographs. It compresses smooth gradients, skies, skin and shadows brilliantly, and every device and service on earth accepts it.PNG is for graphics: screenshots, charts, logos, anything with hard edges or text, and anything needing transparency. WebP does both jobs about 30% smaller; the only reason to avoid it is an older tool that rejects it.
The transparency detail
The one conversion that changes a picture's appearance is anything-to-JPG when the source has transparent areas. JPG cannot represent transparency, so those pixels have to become some colour. This tool fills them with white by default, the choice that looks right on documents and web pages, rather than the black a naive conversion produces, and offers a colour picker so the backing can match a brand colour instead. If the transparency itself matters, convert to WebP or stay with PNG.
Quality: what the slider really does
For JPG and WebP, the quality setting decides how much smoothing the encoder may apply in places you are unlikely to notice. At 85% almost nothing visible happens and files shrink dramatically; at 50% fine texture starts to blur; below 40% edges grow halos. The live size readout lets you watch the trade instead of guessing.
Nothing is watermarked, capped or held back for a paid tier.
Questions people ask
How do I convert PNG to JPG?
Choose the PNG, tap JPG, download. One thing to know: JPG has no transparency, so any see-through areas need a colour. White is the default, and a colour picker appears so you can choose the backing shade yourself. If the transparency has to survive, WebP keeps it and is still smaller than PNG.
How do I convert WebP to JPG?
The same way: choose the WebP file and pick JPG. This is the most common request, usually because an older app or a printing service refuses WebP. The conversion is instant and the quality slider keeps the file small.
Will converting lose quality?
Converting to PNG never loses anything, it is lossless. JPG and WebP re-encode at the quality you set; at 85% or above the difference is invisible at normal viewing size. Converting a JPG to PNG does not recover quality the JPG already gave up, it just makes a faithful, larger copy.
Why is my PNG so much bigger than the JPG?
PNG stores photographs pixel-perfectly, and photographs have millions of subtly different pixels, so there is little for it to squeeze. PNG earns its size on screenshots, diagrams and logos, where perfect edges matter.
Can I convert HEIC photos from an iPhone?
Only in Safari, the one browser that decodes HEIC. Elsewhere you get a clear message that the file could not be read. On the iPhone, Settings → Camera → Formats → Most Compatible makes the camera save JPG directly.
Can I convert a batch of pictures at once?
Yes, choose up to 50 and the format you pick is applied to all of them. They are converted one after another rather than together, so a phone does not run out of memory on a folder of large photos, and a running count shows the progress. Save any single result from its row, or take the whole set as one ZIP.
Which format should I pick?
Photographs go to JPG, or WebP where the destination accepts it, since WebP is smaller at matching quality. Screenshots, logos and anything with text go to PNG, for crisp edges and transparency.