Simple Image Converter — HEIC, WEBP, AVIF, PNG, JPG, PDF
Avalon Software · Sep 1, 2026
Batch-convert images between HEIC, AVIF, WebP, PNG, JPG, TIFF, BMP, ICO, and PDF. Drag in files or folders, pick a format, click Convert. Runs 100% offline which means no uploads, no accounts, no watermarks, no subscription. iPhone HEIC photos open out of the box. Windows and SteamOS.
About Simple Image Converter — HEIC, WEBP, AVIF, PNG, JPG, PDF
Turn a pile of images into exactly the format you need. Drop in files or whole folders, pick a format, click Convert — done. No uploads, no accounts, no watermarks, no subscription. Every format that matters Opens: HEIC/HEIF, AVIF, WebP, PNG, JPG/JFIF, BMP, TIFF, GIF, SVG, ICO, PDF Saves: JPG, PNG, WebP, TIFF, BMP, ICO, PDF iPhone photos just work HEIC opens out of the box — no codec packs, no browser extensions, no sketchy websites. Convert a phone's worth of photos to JPG in one go, with orientation handled correctly every time. Built for big batches Drop 500 files at once. Conversions run in parallel with live progress, and a problem file never kills the batch — it's skipped with a plain-English reason while everything else finishes. PDF, both directions Export PDF pages as images at 150–600 DPI, a page range or the whole document. Or go the other way: combine scans and photos into a single PDF. Make real icons Turn any image into a proper multi-resolution Windows ICO (16 to 256 pixels) — ready for apps, shortcuts, and favicons. Private by design Everything runs on your machine. The app makes zero network connections — your images never leave your computer. Location data and oth
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