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Image Format Converter

Convert JPG, PNG, WebP, AVIF, and browser-supported BMP images locally, with output quality controls, format capability checks, and file previews.

🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.

Private by design

The image is decoded and converted locally with your browser canvas. It is never uploaded.

Output settings

Choose a format

WebP output selected.

Smaller fileHigher quality

Choose an image to begin.

How it works

  1. Drop or choose an image and confirm its size and dimensions.
  2. Select JPEG, PNG, WebP, or browser-supported AVIF output.
  3. Adjust quality, convert locally, and download the new file.

FAQ

Which formats can I convert?

The tool accepts images your browser can decode, including common JPG, PNG, WebP, AVIF, and BMP files. It exports JPEG, PNG, WebP, and AVIF when the browser supports that encoder.

Why is AVIF unavailable in my browser?

Canvas AVIF encoding support varies by browser. The interface checks support locally and asks you to choose JPEG, PNG, or WebP when AVIF export is unavailable.

What happens to transparent pixels in JPEG?

JPEG has no transparency. Enable White JPEG background to replace transparent pixels with white instead of a dark or unexpected background.

Is my image uploaded?

No. Decoding, canvas conversion, previewing, and downloading happen entirely in your browser.

How we compare

FeatureOnline Tool StoreDesktop editorUpload converter
No install/accountNoVaries
Image stays localOften no
Live capability checkNot neededVaries

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Paste this on your own site — it stays free, and every file still stays in your visitor's browser, not yours or ours.