Render engine ready — processing runs in your browser
MP4MOVWEBMMKV*AVI*

SDR in. HDR out.

Upload any standard-dynamic-range video and re-render it with expanded highlights, deeper colour and a higher-resolution output profile — up to 4K and Ultra HDR with a Dolby Vision profile.

1 · Source video

SDR INPUT
Drop your SDR video here
or browse from your device — MP4, MOV, WebM work best in the browser.
Your file stays on this device; nothing is uploaded to a server.
Browse files
Preview — SDR vs HDR
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Your preview will appear here.

Frame-rate detection: output follows your source video's frame-rate profile by default — a 24 / 30 / 60 / 120 FPS source keeps its own cadence unless you override it in the render settings.

2 · Render settings

HDR OUTPUT
Output profile
Frame rate
HDR grading
60%
Output: 1080P 60 FPS · 1920 × 1080 · Frame rate: Follow source

Output profiles

Four render targets, one workflow. Pick the profile when you export — the frame-rate rule stays the same on every one of them: your source video's frame rate is followed by default.

1080P 60 FPS

Full HD HDR

The everyday export — quick to render, easy to share, and a clear step up from SDR on any phone or laptop screen.

  • 1920 × 1080
  • HDR colour grade
  • Best for social uploads
2K 60 FPS

Quad HD HDR

More detail than 1080P without the full 4K file size — a good middle ground for monitors and high-quality streaming.

  • 2560 × 1440
  • HDR colour grade
  • Best for desktop viewing
4K 60 FPS

Ultra HD HDR

A full 4K HDR master. Highlights, shadow detail and colour volume are expanded to fill a modern HDR TV.

  • 3840 × 2160
  • HDR colour grade
  • Best for TVs & archiving
ULTRA HDR · DV

Dolby Vision profile

The top profile: Ultra HDR grading tuned scene-by-scene in the Dolby Vision style, for the widest dynamic range the converter offers.

  • 3840 × 2160
  • Scene-by-scene tone mapping
  • Best for flagship displays

How the conversion works

Three steps, all on your device.

STEP 01

Analyse the source

The converter reads your video's resolution, duration and frame-rate profile. By default the output follows that frame rate — 24, 30, 60 or 120 FPS sources keep their own motion cadence, including 120 FPS processing that follows the source profile.

STEP 02

Expand to HDR

SDR highlights are rolled off and re-mapped into a wider dynamic range, colour saturation and contrast are rebuilt, and the frame is scaled to your chosen profile — 1080P, 2K, 4K or Ultra HDR.

STEP 03

Render & download

The graded frames are encoded in real time in your browser. When the render finishes, download the finished HDR video — no queue, no watermark, no sign-up.

Questions

What happens to my video's frame rate?

By default, all frame rates follow your source video — if you upload a 30 FPS clip, you get a 30 FPS HDR render. The 120 FPS option follows your source video's frame-rate profile for high-frame-rate footage, and the 60 FPS option renders a smooth 60-frame output from any source.

Which profile should I choose?

1080P 60 FPS for quick sharing, 2K 60 FPS for desktop viewing, 4K 60 FPS for TVs and archiving, and Ultra HDR with the Dolby Vision profile when you want the strongest HDR grade on a flagship display.

Is my video uploaded anywhere?

No. The file is read and rendered entirely in your browser on this device, and the download is generated locally. Closing the tab removes the working copy.

Which input files work best?

MP4 and WebM play natively in every modern browser and give the smoothest render. MOV usually works too. MKV and AVI support depends on your browser's built-in codecs.