ZANCTA

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Convert HEIC to JPG — privately in your browser

Convert Apple HEIC/HEIF photos to JPG, PNG, or WebP in your browser using a local decoder (about 4 MB, downloaded once and cached). Your photos are never uploaded — useful before sending images to services that only accept JPG or PNG.
Local processing

Tool details

local boundary
Formats
HEIC, HEIF
Limits
Up to 50 MB per file · 10 files
Processing
Processing stays in this browser after the page loads.
Result
Download or copy the result from this tab. Nothing is stored on ZANCTA.

HEIC conversion workspace

iPhone photos decode locally with a WASM build of libheif (~3 MB, downloaded once and cached).

Local processing

Processed in this tab. File bytes are not uploaded. How local processing works

Supports standard single-image HEIC/HEIF files from iPhone and other cameras. Live Photos, image sequences, and some HDR variants may not decode — the tool says so honestly rather than producing a broken file.

Free, no upload — pass it on:

Before you start

A clear path through HEIC to JPG.

Review the input, the visible limits, and the expected result before you choose a file. The workspace remains the primary place to do the task.

  • Check the input

    HEIC, HEIF supported · up to 50 MB per file · up to 10 files.

  • Keep the boundary visible

    Selected file bytes are processed in this browser for this supported local workflow.

  • Review the result

    Wait until the tool finishes, inspect the output, then download or clear the workspace.

FAQ

Are my photos uploaded?
No. A local HEIC decoder (~4 MB) downloads once from this site, then photos decode in this tab. Nothing is uploaded.
Which output formats are supported?
JPG, PNG, and WebP. JPG is the default since most upload forms and printers accept it.
Which HEIC files work?
Standard single-image HEIC/HEIF photos, including iPhone shots. Live Photos, image sequences, and some HDR variants may not decode — the tool reports failures honestly.
Does quality change?
JPG output is encoded at 92% quality. Choose PNG for lossless output at a larger file size.

Processing runs locally in your browser — no upload. Outputs are generated on-device. For the privacy boundary see the local processing guide.