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Image Format Converter

Convert images between PNG, JPEG, and WebP in batch. Choose quality, convert all files at once, and download individually or as a ZIP.

Core processing runs in your browser. Keep the tab open until downloads or copied results are complete.
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Guide

Usage, privacy, and related tools

Best for

  • Converting screenshots to JPEG for smaller file sizes
  • Preparing images for web use in WebP format
  • Batch PNG to JPEG conversion
  • Converting legacy BMP or AVIF files to standard formats

Privacy

All conversions use the browser Canvas API. No files are uploaded.

Quick tips

  • PNG output is always lossless. Use JPEG or WebP for smaller file sizes.
  • Changing the target format resets converted files so you can re-run with new settings.
  • JPEG export composites transparent areas on a white background.
  • AVIF and BMP inputs are supported even though they are not available as output formats.

How to use this tool

  1. Add one or more images by dragging them onto the zone or clicking to browse.
  2. Select the target format (JPEG, PNG, or WebP).
  3. Adjust quality for JPEG or WebP output.
  4. Click Convert to process all pending files.
  5. Download files individually or use Download All to get a ZIP archive.

Common questions

What input formats are supported?

PNG, JPEG, WebP, AVIF, and BMP. The browser must support the input format for Canvas to decode it.

Can I convert many images at once?

Yes. Add multiple files and click Convert. When all are done, Download All creates a ZIP file.

Will transparency be preserved?

PNG and WebP output preserve transparency. JPEG does not support transparency; transparent pixels are composited on white.

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