Image Converter

JPG, PNG and WebP in one minute

Each format makes a different trade-off, and choosing the right one matters more than any quality setting.

Lossy means some detail is thrown away each time you save; lossless means the pixels are stored exactly. A photo saved as PNG can be 5–10× the size of the same photo as JPG with no visible benefit, while a screenshot of text saved as JPG shows smudgy halos around letters.

How the converter works

Drop one or many files, pick the target format and press Convert. Each image is decoded, drawn to a canvas and re-encoded in your browser; nothing is uploaded. The list shows the size before and after so you can judge whether the conversion helped. For JPG and WebP, the quality slider (default 85) controls the size–detail balance; for PNG there is no slider because the encoder is lossless.

Common conversions and what to expect

PNG to JPG. The usual reason is file size or a form that accepts only JPG. Because JPG has no alpha channel, any transparent region is painted white before encoding — a logo with a transparent background becomes a logo on white. If you need a different background colour, add it in an editor first.

JPG to PNG. Converting does not restore detail that JPG already discarded; it only stops further loss. Use it when a system insists on PNG, or before editing an image repeatedly so it does not degrade with each save.

WebP to JPG or PNG. Images saved from websites are often WebP, which some older photo viewers, Microsoft Office builds and printing services reject. Converting to JPG (photos) or PNG (graphics) fixes that compatibility problem.

JPG or PNG to WebP. Typically 25–35% smaller than JPG at the same visual quality, and it keeps transparency, so it is the best choice for website images. All current browsers display WebP.

Quality guidance

• 85–95: prints, portfolio images, anything you will zoom into.
• 70–85: social media, websites, email — the sweet spot for most uses.
• 50–70: thumbnails and previews. Blockiness starts to show in smooth areas.

Repeated lossy saves compound. If you convert JPG → WebP → JPG, you have applied lossy compression three times. Keep an original and convert from that whenever possible.

Limits and notes

• Very large images are scaled to fit within 8192 px on the longer side, which is the safe limit for browser canvases; the row notes when this happens.
• Photos with an EXIF rotation tag are rotated correctly before conversion.
• Animated WebP files lose their animation because only the first frame is converted.
• Colour profiles (such as Adobe RGB) are converted to standard sRGB, which is what screens and browsers expect.

Frequently asked questions