HDR photos on the web
How HDR photos work, which browsers and devices show them, and how to get them onto a web page without losing the light.
How to create an HDR EXR image
Step by step, with screenshots: turn a photo into a 32-bit HDR image in Adobe Photoshop or Affinity Photo, save it as EXR, and publish it on the web in HDR.
HDR image formats, explained
Gain map JPEG, Ultra HDR, HEIC, AVIF, JPEG XL, HDR video and EXR: what each one is, which browsers show it in HDR, and why the web needs several.
How to keep the HDR from an iPhone photo on the web
iPhone photos are HDR, but most browsers cannot show a HEIC file and a plain JPEG export loses the HDR. How to show them in HDR in almost every browser.
How to publish HDR photos on your website
How to put HDR photos on a web page: why one file is not enough, the formats and HTML that reach almost every browser, and how to check the result.
Why your HDR photos look flat after uploading
An HDR photo looks flat on a web page when the browser cannot show its format in HDR, or when an upload re-encoded the file. How to spot each and fix it.
HDR images on the web
Why HDR photos are still rare on the web when phones take them and screens show them: competing formats, missing tools, and how a gain map JPEG paired with an HDR video reaches almost every browser.