Why can't I convert PNG to HEIC in my browser?

Web browsers can open many image formats but can only create PNG, JPG and (outside Safari) WebP. HEIC isn't one of them, so online converters secretly upload your files to a server to do it. TinyPresso converts on your Mac instead — nothing is uploaded.

Does converting PNG to HEIC lose quality?

HEIC is a high-efficiency format; TinyPresso converts at high quality, and for photos the result is visually identical while taking less space.

Convert PNG to HEIC

No web browser can create HEIC files, so a truly private “online” PNG-to-HEIC converter doesn't exist. The free TinyPresso app does the conversion on your Mac — offline, in batches, with compression built in.

Web browsers can't create HEIC files — no online tool can truly do this conversion in your browser. The free TinyPresso app converts PNG to HEIC on your Mac, offline: drop your files in, set Format to HEIC, press Compress.

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Why convert PNG to HEIC?

HEIC packs the same image into roughly half the space of a JPG. It's the format Apple's ecosystem loves — Photos, iCloud and iMessage all treat it as native, so converting saves real storage space.

Good to know

Why no browser tool? Creating HEIC files needs an encoder that no web browser ships. Sites claiming to convert to HEIC “online” upload your files to their server — TinyPresso does it on your Mac instead.
Batches welcome. Drop as many files as you like — there's no limit and no queue.

Need more than a few files?

The free TinyPresso app for macOS converts PNG to HEIC in unlimited batches and compresses the results at the same time — drag a whole folder in, press Compress, done. It runs 100% offline, so client work and personal photos stay on your Mac. It also handles reducing image file size in general.

Related converters

TinyPresso converts and compresses images right on your Mac — free, offline, no limits.

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