Convert HEIC to uncompressed TIFF for editing and print
Get an uncompressed TIFF with the colour profile embedded, in 8-bit or 16-bit per channel. It suits editors and print shops, not email.
Drop HEIC photos here, or pick them from your device
Stays on your device. Nothing is uploaded.
Processing on this device
How to use it
- Add your HEIC files.
- Choose 8-bit or 16-bit per channel. Read the note beside the choice before you pick 16.
- Decide on colour handling and optional date, camera and settings.
- Convert and download. Expect big files.
What it keeps
- Every decoded pixel, written without compression.
- The ICC profile, embedded in the file so editors show colour correctly.
- Pixel dimensions and visible orientation.
- Optional date, camera and exposure fields.
What it removes or changes
- A 16-bit TIFF keeps real extra precision only when the HEIC itself has more than 8 bits, as 10-bit files do. Most iPhone photos are 8-bit, and for those 16-bit is the same data scaled up.
- Files are very large, because baseline TIFF here is uncompressed.
- Alpha, depth maps and gain maps are not part of the result.
Limits
- Limits are 200 MB per file input, 100 megapixels and 200 files per batch. A TIFF of a large photo can be hundreds of megabytes.
- Browsers cannot display TIFF, so you will see the result only in an editor or viewer app.
- The format is baseline TIFF. Layers, tiling or compression options are not offered.
Compatibility
TIFF opens in Photoshop, Affinity, GIMP, Lightroom and most print and archive workflows, and Preview on macOS and the Windows photo viewer handle it. Web browsers will not show it and websites rarely accept it. Use it as a working copy, then export to JPG or PNG for delivery.
Privacy
Decoding and TIFF writing both run in a Web Worker in your tab. The file is never uploaded, and the page can only talk to its own origin and Google Analytics, which loads only if you accept it.
TIFF or PNG when you need no extra loss
Both avoid adding compression loss after decoding. PNG compresses losslessly, so files are smaller, and it opens in browsers. TIFF is uncompressed, bigger, and is what some print and archive processes explicitly request, with a profile embedded and a 16-bit option. If nobody asked you for TIFF, PNG is usually the saner choice. If a printer did, deliver TIFF.
Troubleshooting
My 16-bit TIFF shows no extra detail.
That is expected for an 8-bit HEIC, and most phone photos are 8-bit. The result note tells you when the source had only 8 bits. A 10-bit HEIC does carry its extra precision into the 16-bit TIFF.
The file is gigantic.
Uncompressed TIFF is large by design. Use PNG for lossless but smaller output.
My browser will not preview the TIFF.
Browsers do not render TIFF. Open it in an image editor or viewer.
Frequently asked questions
Is 16-bit TIFF better than 8-bit here?
Only for sources with more than 8 bits per channel, such as 10-bit HEIC files. For an 8-bit HEIC the values are simply scaled, which helps only if a workflow requires a 16-bit file.
Is the colour profile kept?
Yes, the ICC profile is embedded.
Is the TIFF compressed?
No. It is uncompressed baseline TIFF.
Can I keep date and camera info?
Yes. Date, camera and settings fields can be written into the TIFF if you switch that option on.