Image Format Converter - WebP / JPG / PNG Local Tool

Convert WebP, JPG, PNG, and other image formats locally in your browser. Batch drag, preview, adjust quality, and download with no uploads or artificial file size limit.

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Drop images here
Supports JPG, PNG, WebP, GIF, BMP, and SVG. Select multiple files; images are not uploaded.

Add images, choose a target format, then start local conversion.

All images are processed locally in your browser and are not uploaded.

Original and output previews will appear here after you add and convert images.

How to Use

  1. Drop JPG, PNG, WebP, GIF, BMP, or SVG images into the upload area, or choose multiple files with the button.
  2. Select the target format, such as WebP, JPG, or PNG.
  3. Adjust the quality slider when exporting JPG or WebP; PNG ignores the quality setting.
  4. Convert the images and review the original and output previews in the gallery.
  5. Download each converted file from its card.

Core Features

  • Local Canvas conversion: Export images to JPG, PNG, or WebP with browser Canvas, without uploading photos, screenshots, or design assets.
  • WebP / JPG / PNG workflows: Handle common tasks such as WebP to JPG, PNG to WebP, and JPG to WebP.
  • Batch drag and drop: Drop multiple images, convert them together, then preview and download each result from the gallery.
  • No upload size cap: There is no 10MB or 50MB server upload limit; practical limits depend on device memory and browser Canvas support.
  • Quality slider: Adjust quality for JPG or WebP output to balance visual clarity and file size.
  • Instant local download: Skip upload queues and save the converted file directly from your browser.

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Calculation Logic

The tool converts images with local browser APIs:

  • URL.createObjectURL creates local previews for selected files.
  • The image is drawn to canvas, then exported with canvas.toBlob().
  • JPG output is drawn over a white background because JPG does not support transparency.
  • SVG, GIF, and BMP input depends on the current browser's image decoding support; GIF exports as the decoded static frame.
  • Files stay in the current browser session, avoiding upload and download traffic. Conversion depends mainly on device memory and browser image decoding support.

FAQ

Are my images uploaded?

No. Preview, Canvas rendering, and export all happen locally in your browser.

Which output formats are supported?

The tool exports JPG, PNG, and WebP. That covers WebP to JPG, PNG to WebP, JPG to WebP, and similar common workflows.

Can it convert WebP to regular JPG?

Yes. Choose JPG as the target format and convert. Because JPG does not support transparency, transparent areas are drawn over white.

Can I convert multiple images?

Yes. Choose or drop multiple files, convert them together, then download each result from the gallery.

Why is local conversion so fast?

The image is not uploaded to a server and the result does not need to be downloaded back. Your browser renders and exports the target format locally.

Why does transparency turn white in JPG?

JPG does not support transparency, so transparent areas are drawn over white. Use PNG or WebP when you need transparency.

Is there a file size limit?

There is no artificial upload size limit because nothing is uploaded. Very large images can still be limited by device memory and browser Canvas support.