Why Browser-Local Image Conversion Matters for Privacy
2026-03-01 · 6 min read
HeicSave team
We test HEIC workflows on Windows 11, macOS, Chrome, and Edge before publishing. Editorial standards
Uploading family photos or client assets to random converters creates GDPR and security risk.
Client-side processing
Tools that use WebAssembly (HEIC) or Canvas (WebP/AVIF) keep bytes on your device. HeicSave does not receive your image files for conversion.
What we don't limit artificially
There is no “5 files only” or “10 MB max” rule in our tools. Very large batches may still fail if your browser runs out of memory; we show a friendly warning, not a paywall.
GDPR & cookies
EU users see a cookie banner for analytics and Google AdSense. You can accept or decline. Image bytes are not part of that processing.
What we collect
Analytics (with consent) and standard server logs, not your image files. Who runs HeicSave and how we test guides: About. Questions: Contact.
Verify zero upload yourself (DevTools)
Want proof your photos never leave the device?
- Open HEIC to JPG in Chrome or Edge.
- Press F12 → Network tab → enable Preserve log.
- Convert one or more HEIC files.
- Filter by Fetch/XHR or search for
upload.
You should not see requests posting your image bytes to HeicSave. You may see page JavaScript, WASM (libheif), and analytics only if you accepted cookies—those are separate from your photo data.
HeicSave has no server-side conversion endpoint. The converter also shows a collapsible Verify zero upload hint on tool pages.