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Image converter

Convert images between JPEG, PNG, WebP and AVIF, keeping transparency where possible.

Runs in your browser. Your input is processed on this device. It is never uploaded or stored.

Drop files here, or

JPEG, PNG, WebP, AVIF, GIF and BMP · up to 20 images, 25 MB and 40 megapixels each

Convert to

Much smaller than JPEG and PNG, keeps transparency. Supported by all current browsers.

80

Lower means smaller files with more visible artefacts.

How it works

Images are decoded and re-encoded in a background thread in your browser and never uploaded. Every output file is checked to really be in the format its name says.

  • Input: JPEG, PNG, WebP, AVIF, GIF and BMP. The format is recognised from the file’s contents, so a wrongly named file still converts correctly.
  • Transparency is kept when converting to PNG, WebP or AVIF. JPEG cannot store it, so transparent areas are filled with white, and the result tells you when that happened.
  • Animation: animated GIF, WebP and PNG files are converted to a still image of their first frame.
  • Metadata such as camera details and GPS location is not copied to the new file. Camera rotation is applied first, so the image stays upright.
  • Limits: up to 20 images at a time, each up to 25 MB and 40 megapixels.

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