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Image Converter

Convert and resize PNG, JPEG, and WebP images locally with explicit quality and transparency handling.

Runs locally — input is never uploaded
File & settingsPNG, JPEG or WebP · max 25 MiB / 40 MP

Export strips EXIF, location, comments, and colour-profile metadata. Transparent pixels are preserved by PNG/WebP and filled with the selected background for JPEG.

Preview & result—

Choose an image to preview it locally.

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After
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WHAT IT DOES

Change an image file without sending it anywhere.

Drop a PNG, JPEG, or WebP image, choose the output dimensions, quality, format, and JPEG background, then download the converted result directly from the browser. The preview reports the original and converted sizes, while decoded-pixel limits prevent a deceptively small compressed file from allocating an unsafe canvas.

Why use it?

Use it to resize a raster image or change its format before including it in a page, issue, or asset pipeline.

How to use this tool

  1. Load a PNG, JPEG, or WebP and choose the output format and dimensions. Keep aspect locking enabled unless stretching is intentional.
  2. For example, reduce a 1600 by 900 image to 800 pixels wide with the aspect locked to obtain 800 by 450 pixels.
  3. Review quality and file size before downloading. Choose a background for JPEG because it cannot retain transparency, and keep the original if you need its metadata.

Details and limitations

  • PNG, JPEG, and WebP input are decoded by the browser; output choices are capability-tested and a format is offered only when the browser returns that exact MIME type.
  • Width, height, percentage scale, and aspect locking operate on the decoded orientation, with a maximum of 16,384 pixels per side and 40 megapixels in the result.
  • PNG and WebP preserve transparent pixels, while JPEG fills them with an explicitly selected background instead of silently turning them black.
  • Canvas export deliberately strips EXIF, location, comments, and colour-profile metadata, and the generated image is decoded again before its download begins.

COMMON QUESTIONS

Image Converter questions

Which image formats can I convert?
Input accepts PNG, JPEG, and WebP. PNG output is always available; JPEG and WebP appear only after this browser proves it can encode the requested MIME type without falling back to PNG.
Does conversion preserve image metadata?
No. Browser canvas export redraws the decoded pixels and intentionally removes EXIF, GPS, comments, and embedded colour-profile metadata from the downloaded file.
What happens to transparent pixels in JPEG?
JPEG has no alpha channel, so the converter fills transparent pixels with the background colour shown in the settings. The default is white and can be changed before conversion.