uencoder

Image Format Converter

Convert images between JPEG, PNG, WebP, and BMP formats locally. Adjust quality and dimensions. Free, private, and 100% client-side.

Local only

Recent history

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How to use

  1. Upload or paste an image (as data URL)
  2. Select target format (JPEG/PNG/WebP/BMP)
  3. Optionally set quality and max width
  4. Download the converted image

Frequently asked questions

Which formats are supported?
JPEG, PNG, WebP, and BMP. Convert between any of these formats.
Can I resize during conversion?
Yes, set a max width and the height will be adjusted proportionally.

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