Show HN: Heicconvert.it – HEIC → JPEG, PNG, WebP or AVIF In-Browser (No Upload)

I built heicconvert.it — a fast, private, and completely browser-based HEIC/HEIF image converter that supports output conversion to JPEG, PNG, WebP, or even AVIF.

Why I made it: - Photos from iPhones often come in HEIC format, which isn’t broadly supported everywhere. - Existing tools tend to require uploads, compromise privacy, or feel clunky. - I wanted a zero-friction, client-side tool where conversion happens instantly, in your browser, without ever touching a server.

Try it - https://www.heicconvert.it - No signup, no tracking, and no data is sent to anyone.

What’s inside: - Built entirely in-browser using WebAssembly and client-side APIs—so nothing gets uploaded :contentReference[oaicite:2]{index=2}. - Drag-and-drop / file picker, selection of output format, and instant conversion UI. - Future formats supported: JPEG, PNG, WebP, and AVIF :contentReference[oaicite:3]{index=3}.

Limitations: - Might be slower on very large files or older browsers. - AVIF output support is experimental and may vary.

I’d love feedback on: - UI clarity: is converting as easy to understand as it seems? - Browser compatibility—any weird failures on certain browsers or devices? - Any missing formats or quality options you’d like.

Happy to answer any questions — thanks for trying it out!