PlainToolkit
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Convert Image Format

Between PNG, JPG and WebP

Choose a file

Drop a file hereTap to choose a fileDrop it hereOne image, up to 30 MB. Processed as soon as you pick it, and never uploaded.One image, up to 30 MB. Processed as soon as you pick it, and never uploaded.

Settings

Preview

Choose an image to see the result.

Everything happens in your browser. Your image is never uploaded or stored. The saved file carries no EXIF data from the original — no capture date, GPS location or camera details.

How to use

Converts pictures between PNG, JPG and WebP. The lossy formats come with a quality slider, and you can watch the preview and the resulting size as you choose. Everything runs in your browser; nothing is uploaded.

When to use it

  • Turning a PNG that needs no transparency into a much smaller JPG.
  • Meeting a site or program that accepts only one format.
  • Producing WebP images to keep a website light.

How to use it

  1. Choose a picture. Up to 30MB, 12,000px per side and 40 megapixels. PNG, JPG, WebP, GIF, BMP and AVIF can be read.
  2. Pick the output format. Choosing JPG or WebP reveals the quality slider.
  3. Check the preview and the resulting size, then press Download.

Good to know

  • This is not the same as renaming a file. Changing .png to .jpg leaves the contents untouched, so the file may fail to open; here the image is genuinely re-encoded.
  • JPG cannot store transparency — transparent areas become white. Use PNG or WebP to keep them.
  • Lost quality never comes back. Converting a JPG to PNG does not restore what was discarded; it only makes the file bigger.
  • An animated GIF keeps only its first frame.
  • The saved file carries no EXIF from the original (date, location, camera).

Frequently asked questions

Which format should I pick?

Photos: JPG, for size. Text, line art or anything transparent: PNG, for clarity. Images for a website: WebP, which is smaller at the same quality — though a few old programs still cannot open it.

What quality setting should I use?

80 to 90 percent is usually plenty for screen use. Below about 70 percent, blotches start to show in photographs. If you have a target file size, the photo size fitter finds the highest quality that fits under it.

My PNG came out larger than the original.

PNG never throws away detail, so for a colour-rich photograph it is far bigger than JPG. Photos belong in JPG or WebP; flat graphics and icons belong in PNG.

Can I save as AVIF or HEIC?

AVIF can be read, but saving is limited to PNG, JPG and WebP, since those are the formats every browser produces identically. For an iPhone HEIC, export it as JPG on the device first.