JR Trove
Free · Browser-only · No signup

Image Format Converter

Convert images between PNG ↔ JPG ↔ WebP formats. Instant, with quality control and JPEG background-color option for transparent PNGs.

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Inside the tool

What powers the Image Format Converter

Convert between PNG, JPG, WebP in any direction

Quality slider for JPEG and WebP output

Background color picker for transparent PNG → JPG conversion

Original-vs-converted file size comparison

no upload processing

Source dimensions preserved (use Image Resizer to change size)

Built differently

Why the Image Format Converter is different

Browser-native

The Image Format Converter runs entirely in your browser. Input is processed locally — never uploaded, never logged, never cached anywhere outside your device.

No artificial limits

No daily quotas, no character ceilings, no "upgrade for more" walls. Every feature is the complete feature — the same on the first use as the thousandth.

Production-grade quality

Built to the same engineering bar as paid SaaS tools — accurate algorithms, audited logic, responsive design and accessibility-tested interactions.

Use Contexts

Common use contexts

  • Converting transparent PNGs to JPGs for use in PDFs or print
  • Modernizing JPGs to WebP for faster web pages
  • Converting WebP from a download to JPG/PNG for editing in legacy apps
  • Removing alpha channel from PNGs before printing
Privacy by design

Private and secure

Zero upload

All processing happens in your browser. Input is never transmitted, logged or cached.

Works offline

Once the page loads, the tool runs without an internet connection. No network calls happen during use.

No tracking

No accounts, no cookies for tool state. Only aggregate analytics count visits at the page level.

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FAQ

Image Format Converter questions

JPEG does not support transparency. The tool lets you pick a background color (white by default) that will replace any transparent pixels in the original.