HEIC to PGM Converter

Convert HEIC images to PGM format instantly in your browser. 100% client-side — no uploads, no servers, no tracking.

Converter Media & Files
Input — HEIC
Drop your HEIC file here
Or click to browse
100% local. Nothing is uploaded.
Detected:
Dimensions
File Size
Loading decoder…
Output — PGM
HEIC → PGM
Resize Options
Leave blank to keep original dimensions.
Download PGM
Drop a HEIC file above, then click Convert.
Source
Output
Input Size
Output Size

FAQ

Is my HEIC file uploaded anywhere?

No. All processing happens entirely in your browser using JavaScript and WebAssembly. Your file never leaves your device. Nothing is sent to any server.

What's the maximum file size?

There's no hard limit — it depends on your browser's available memory. Most files up to 50MB convert without issues. Very large files (100MB+) may be slow on older devices.

Why does the first conversion take longer?

HEIC requires a WebAssembly decoder that's downloaded once on first use (~1-3MB). It's cached by your browser, so subsequent conversions are instant.

Can I convert multiple files at once?

This tool handles one file at a time. For batch conversions, use the Universal Converter.

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