ZeroUtil

Image Format Converter

Convert images between PNG, JPEG, and WebP formats in one click.

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Drop an image here or click to upload

Supports JPG, PNG, WebP

How to Use the Image Format Converter

Upload an image in any format (JPG, PNG, WebP) and convert it to a different format with one click.

Supported Output Formats

  • PNG — Lossless compression, supports transparency. Best for graphics, screenshots, and images with text.
  • JPEG — Lossy compression, smaller file sizes. Best for photographs and complex images without transparency.
  • WebP — Modern format with excellent compression. Supports both lossy and lossless modes plus transparency.

How It Works

The tool draws your image onto an HTML5 Canvas and exports it in the selected format. JPEG output includes a white background for transparent images since JPEG does not support transparency.

Frequently Asked Questions

Does converting formats change image quality?

Converting to PNG is lossless — no quality loss. Converting to JPEG or WebP uses lossy compression at 92% quality, which is visually indistinguishable from the original for most images.

What happens to transparency when converting to JPEG?

JPEG does not support transparency. Transparent areas are filled with a white background during conversion. Use PNG or WebP to preserve transparency.

Which format should I choose for the web?

WebP offers the best compression for web use. Use JPEG for broad compatibility with older systems. Use PNG when you need transparency or lossless quality.

Is my image uploaded to a server?

No. All conversion happens locally in your browser using the Canvas API. Your image never leaves your device.

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