How to Process HDR Locally on Apple Devices
Learn how to process HDR locally with automatic bracket detection, alignment, deghosting, tone mapping, and private full-resolution on-device exports.
Guides
MergeHDR guides
Auto exposure bracketing explained, plus step-by-step tutorials for merging bracketed photos into HDR on Mac and iPhone.
Guide
Auto exposure bracketing, explained
What auto exposure bracketing is, how to enable it on Canon, Sony, Nikon and Fujifilm, which EV steps and frame counts to use, and how to merge the results.
Tutorial
How to merge bracketed photos on Mac
Three ways to merge bracketed photos into HDR on a Mac — Lightroom Classic, free HDRMerge and Hugin, and the automatic way with MergeHDR — step by step.
Tutorial
How to merge bracketed photos on iPhone
Merge exposure brackets into HDR directly on your iPhone — no desktop, no cloud uploads. A step-by-step MergeHDR tutorial for camera and drone RAW files.
Latest from the blog
Shorter notes on bracketing, HDR and getting more out of your library — new ones go up regularly.
How Many Photos for HDR? Choose 3, 5, or 7
How many photos for HDR should you shoot? Learn when 3, 5, or 7 bracketed exposures deliver clean highlights, shadows, and natural-looking…
Best Tools for Camera Brackets That Save Time
Compare the best tools for camera brackets, from reliable capture setup to local HDR merging, with faster sorting, alignment, deghosting, and export.
Local Photo Processing for HDR Without Uploads
Local photo processing keeps bracketed images private while detecting, aligning, deghosting, and exporting clean HDR files directly on your Apple device.
How to Shoot iPhone AEB for Clean, Natural HDR
Learn how to shoot iPhone AEB with consistent framing, safe exposure spacing, and motion control, then merge clean HDR images entirely on…
How iPhone HDR Processing Changes Your Photos
See how iPhone HDR processing handles bright skies and dark interiors, when it falls short, and why bracketed merges deliver greater control…
Let MergeHDR find your brackets.
Free to try, on-device by design. Unlimited saves are $19.99 once or $9.99/year — Universal Purchase across iPhone, iPad and Mac, with Family Sharing.
