iPhone HDR Fix: Tone-Mapping for Standard Displays

Fix blown-out, overexposed iPhone HDR videos and convert them to SDR for consistent social media display using our browser-based processing core.

High Dynamic Range (HDR) recording on modern smartphones captures stunning detail, but it often looks "blown out" or excessively bright when shared to platforms or viewed on displays that don't support the format. This results in lost detail and a poor viewing experience for your audience.

Our proprietary browser-based core allows you to fix these overexposed clips by applying professional-grade tone-mapping, converting HDR footage to a vibrant, consistent Standard Dynamic Range (SDR) format.

Why fix HDR in the browser?

  • Instant Preview: See exactly how your tone-mapped video will look on standard screens before downloading.
  • Privacy-First: Your high-resolution personal footage never leaves your device; processing happens locally.
  • Color Accuracy: Our tone-mapping algorithm preserves skin tones and natural colors while taming highlight blowouts.

When to use an HDR to SDR fixer

  • Your iPhone videos look way too bright on your desktop or secondary monitor.
  • Social media platforms are washing out the colors of your high-quality recordings.
  • You need a consistent "look" across a montage of clips from different cameras.
  • Sharing professional-looking clips to users on older mobile devices.

Fast workflow

  1. Drag your HDR video into the fixer.
  2. Our tool automatically detects the HDR format and applies a baseline tone-map.
  3. Adjust exposure or saturation if needed to match your brand style.
  4. Download your perfectly balanced, SDR-compatible social clip.

Pro tips

  • Check Highlights: Look at the brightest parts of your video (like the sky or white walls) to ensure detail is restored.
  • Saturation Balance: HDR to SDR conversion can sometimes dull colors; use the built-in controls to add a slight saturation boost.
  • Consistency: Fix all your clips before editing them together to ensure the lighting doesn't "jump" between scenes.

Checklist

  • Highlights are no longer "glowing" or blown out.
  • Colors look natural and vibrant, not washed out.
  • Detail is visible in both the brightest and darkest areas.
  • Final file is in a standard MP4/MOV container for maximum compatibility.

FAQ

Does this lower the resolution? No, our proprietary core maintains your original resolution (4K, 1080p, etc.) while only changing the color space.

Is this the same as a "filter"? No, this is a mathematical re-mapping of light data (tone-mapping) specifically designed to correct HDR-to-SDR mismatches.

Does it work with Dolby Vision? Yes, our engine supports the most common HDR formats used by modern smartphones.


Try the tool

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Tags:#video hdr to sdr#tone-mapping#iphone video fix#browser tools