About Image Converter
Three formats cover almost everything on the web, and each is good at something different. JPEG produces the smallest photographs but cannot store transparency. PNG reproduces every pixel exactly and has a full alpha channel, which makes it right for logos and screenshots and wasteful for photographs. WebP does both jobs well, typically 25–35% smaller than JPEG at matched quality while still supporting transparency.
This converter handles every combination in one place. Add your files, pick the format you want out, and the relevant options appear: a quality slider for lossy encodes, a lossless switch for WebP, and a background colour picker whenever the output cannot store transparency and something has to replace it.
Conversion runs on your device using the browser's own image decoder and the Canvas API. Nothing is uploaded, there is no queue, and it keeps working if your connection drops after the page has loaded.
How to convert an image
Add your images
Drag files onto the drop zone or tap to browse. Up to 30 at a time, and they do not all have to be the same format.
Choose the output format
JPG for the smallest photographs, PNG for lossless graphics with transparency, WebP when you want both.
Adjust the options
Set the quality for lossy formats, and pick the colour that replaces transparent areas if you are converting to JPG.
Convert and download
Press Convert, check the size change for each file, then save them individually or all at once.
Which format should I convert to?
- JPG — photographs, and anywhere maximum compatibility matters. Smallest files, no transparency.
- PNG — logos, icons, screenshots, diagrams and anything with sharp edges or a transparent background. Lossless, but large for photographs.
- WebP — the best default for websites. Smaller than JPG at the same quality, and it keeps transparency like PNG.
What conversion cannot do
Converting never restores detail. If a JPEG was saved at low quality, its compression artefacts are baked into the pixels, and turning it into a PNG stores those artefacts perfectly rather than removing them. What you gain is a file that will not degrade further.
Each lossy save also costs a little quality, and the losses accumulate. Always convert from the original file rather than from a copy that has already been through a lossy round trip.
Transparency and metadata
PNG and WebP carry an alpha channel; JPEG does not. Converting a transparent image to JPG replaces those pixels with a solid colour, which the tool warns about and lets you choose before converting.
Because conversion goes through a canvas, EXIF metadata is dropped — camera model, timestamps and any GPS coordinates. For images you are about to publish that is a privacy benefit. If you need to read that data first, use the Image Metadata Viewer.