Convert HEIC to PNG — Offline
Drop one or a whole folder of iPhone .heic photos onto MiniMax Converter and get standard .png files back. PNG is lossless, so no detail is thrown away in the encode. Runs locally — no upload, no file-size limit, no watermark.
How to convert
- Drop your .heic files (or a folder of them) onto the MiniMax Converter window.
- In the format chooser, pick PNG as the output format.
- Leave the defaults for lossless PNG, or adjust the quality option if you want.
- Click Convert and choose where to save the finished .png files.
Lossless PNG output
PNG is a lossless format, so the conversion re-encodes your photo without discarding any image data — what comes out matches what HEIC decoded to, pixel for pixel. The trade-off is file size: a PNG is usually several times larger than the original HEIC, which packs photos efficiently with lossy compression. If you mainly care about small files for sharing, JPEG or WebP will be smaller; choose PNG when you want maximum fidelity or need transparency support.
Batch a whole camera roll
Exported a year of iPhone photos and ended up with a pile of .heic files Windows or your editor won't open? Drop the entire folder at once and MiniMax Converter processes every file in one run, writing a matching .png for each. There's no per-file clicking and no limit on how many you queue — handy for getting an iPhone camera roll into a format every app and website accepts.
Why offline?
Online HEIC-to-PNG sites cap upload sizes, queue your photos behind other users, and require sending every personal photo to someone else's server — often with ads or a watermark attached. Local conversion handles any size at SSD speed, processes batches without throttling, and your photos never leave your machine. For a phone full of personal pictures, that privacy difference is the whole point.
Questions and answers
Is the PNG output lossless?
Yes. PNG uses lossless compression, so the converted image preserves the full decoded HEIC data with no additional quality loss. The only cost is a larger file size compared to the original HEIC.
Why is my PNG so much bigger than the HEIC?
HEIC uses efficient lossy compression to keep phone photos small, while PNG stores image data losslessly. For a typical photo a PNG can be several times larger. If file size matters more than perfect fidelity, convert to JPEG or WebP instead.
Can I convert a whole folder of iPhone photos at once?
Yes. Drop a folder or select many .heic files and they all convert in a single run, each producing its own .png. There's no cap on how many files you can queue.
Do I need anything extra installed for HEIC?
HEIC decoding uses ImageMagick. If it isn't already present, the app tells you and offers an install hint the first time you convert a HEIC file; after that, conversions run normally.
Related tools
Get MiniMax Converter
Cross-platform desktop app. Linux free for non-commercial use; Windows & macOS one-time €20 license. No subscription, no telemetry, no account.