MakeHDR vs other online HDR converters
Most online 'HDR converters' just apply a contrast filter and upload your file to a server — and that's the same trap for video. MakeHDR computes a real gain map for photos and true HDR for video, in your browser, privately.
See the difference
This display isn't HDR — content shows at standard (SDR) brightness
| MakeHDR | Other online converters | |
|---|---|---|
| Real gain-map HDR (ISO 21496-1) | Yes | Usually a filter |
| Converts video to HDR | True HDR | Rarely — or upscales |
| Privacy | Stays on your device | Uploaded to a server |
| No AI, no invented detail | Guaranteed | Often AI 'enhance' |
If a tool uploads your file and runs an AI filter, you're not getting real HDR — you're getting an altered SDR image. MakeHDR computes standards-based Ultra HDR for photos and true HDR for video locally, with your pixels untouched. It's $12.99/mo or $149.99 once, free to try with a watermark.