Build your HDR JPEG for Instagram

Drop your SDR export and your HDR export from Lightroom / Camera Raw. The script does the rest — gain map, 4:2:0 subsampling, Instagram metadata injection. Add more pairs to process several photos in one go.

{% if error %}
{{ error }}
{% endif %}
SDR fallback
.jpg / .jpeg
HDR export
.jpg (gain map), or 32-bit float .tif

Each pair's files must have identical dimensions. By default that must also match one of Instagram's feed resolutions exactly: 1080x1080 (1:1), 1080x1350 (4:5), or 1080x566 (1.91:1); check the box above to skip that check for results meant for somewhere other than Instagram. Assembling more than one pair downloads as a .zip. HDR can be a regular gain-map JPEG or Lightroom's 32-bit float linear HDR TIFF export; a TIFF HDR file gives a more precise result than the JPEG gain-map route.

Instameex v{{ app_version }}

Gitea GitHub