Why won’t my browser save HEIC?

No browser can write HEIC. It can be read, not written.

Which format is smallest?

Usually AVIF, then WebP, then JPEG, at similar visual quality.

Size & format — Make your images fit.

JPEG, PNG, WebP, AVIF — and HEIC in. The tool checks what your browser can write, and says so instead of quietly handing you something else.

HEIC opens everywhere: Safari decodes it natively; other browsers get a decoder that loads only when a HEIC actually shows up.
If a format can’t be written here, you’re told, and it falls back to JPEG out loud.
Batch in, ZIP out.

Everything on this page runs on your device. Nothing you drop here is uploaded.

Why won’t my browser save HEIC?: No browser can write HEIC. It can be read, not written.
Which format is smallest?: Usually AVIF, then WebP, then JPEG, at similar visual quality.