MiikaH

Browser HDR support

A test page with simple images and videos to verify your browser and device support for various HDR content.

Autoplay is blocked, so the video tests are paused.

JavaScript and CSS

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What the browser reports about itself.

User agent
matchMedia('(dynamic-range: high)')
matchMedia('(video-dynamic-range: high)')
matchMedia('(min-color: 10)')
screen.colorDepth

HDR gain map images

Show gain maps Hide gain maps

Gain map images contain additional metadata on top of the regular SDR image that allows devices with HDR capabilities to display them in wider dynamic range.

JPEG with an ISO 21496-1 and XMP gain map metadata
  • If a large "HDR" text is visible in the middle of the image: Gain map is active in HDR
  • If only a small "SDR base" text is visible: Your browser is rendering the image in SDR or doesn't support gain maps

JPEG with an ISO 21496-1 with multi channel gain map metadata
  • If image shows in full color with large "HDR" faintly visible in the middle: Your browser supports multi-channel ISO 21496-1 gain maps
  • If image shows in black and white: Your browser is rendering the image in SDR or doesn't support multi-channel gain maps

AVIF with an ISO 21496-1 and XMP gain map metadata
  • If a large "HDR" text is visible in the middle of the image: Gain map is active in HDR
  • If only a small "SDR base" text is visible: Your browser is rendering the image in SDR or doesn't support gain maps

AVIF with an ISO 21496-1 with multi channel gain map metadata
  • If image shows in full color with large "HDR" faintly visible in the middle: Your browser supports multi-channel ISO 21496-1 gain maps
  • If image shows in black and white: Your browser is rendering the image in SDR or doesn't support multi-channel gain maps

HEIC with an ISO 21496-1 and Apple legacy gain map metadata
  • If a large "HDR" text is visible in the middle of the image: Gain map is active in HDR
  • If only a small "SDR base" text is visible: Your browser is rendering the image in SDR or doesn't support gain maps

HEIC with an ISO 21496-1 with multi channel gain map metadata
  • If image shows in full color with large "HDR" faintly visible in the middle: Your browser supports multi-channel ISO 21496-1 gain maps
  • If image shows in black and white: Your browser is rendering the image in SDR or doesn't support multi-channel gain maps

Native AVIF HDR images

Show AVIF images Hide AVIF images

These files have no SDR base layer. The pixels are stored directly in BT.2020 with a PQ or HLG transfer function, so a browser either understands the color signalling or renders the image wrong. Each test puts the HDR file next to a plain SDR reference for comparison.

Left half: AVIF, 10-bit, BT.2020 PQ, limited range
Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same: the file is decoded but tone mapped down to SDR
  • If the HDR side looks clearly darker: the transfer function is being ignored or mapped incorrectly

Left half: AVIF, 10-bit, BT.2020 PQ, full range
Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same: the file is decoded but tone mapped down to SDR
  • If the HDR side looks clearly darker: the transfer function is being ignored or mapped incorrectly

Left half: AVIF, 10-bit, BT.2020 HLG, limited range
Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same or HDR side is darker: the file is not rendering in HDR

Left half: AVIF, 10-bit, BT.2020 HLG, full range
Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same or HDR side is darker: the file is not rendering in HDR

Left half: AVIF, 12-bit, BT.2020 PQ, limited range
Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same: the file is decoded but tone mapped down to SDR
  • If the HDR side looks clearly darker: the transfer function is being ignored or mapped incorrectly

Left half: AVIF, 12-bit, BT.2020 PQ, full range
Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same: the file is decoded but tone mapped down to SDR
  • If the HDR side looks clearly darker: the transfer function is being ignored or mapped incorrectly

Native HEIC HDR images

Supported by few browsers Show HEIC images Hide HEIC images

These files have no SDR base layer. The pixels are stored directly in BT.2020 with a PQ or HLG transfer function, so a browser either understands the color signalling or renders the image wrong. Each test puts the HDR file next to a plain SDR reference for comparison.

Left half: HEIC, 10-bit, BT.2020 PQ, limited range
Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same: the file is decoded but tone mapped down to SDR
  • If the HDR side looks clearly darker: the transfer function is being ignored or mapped incorrectly

Left half: HEIC, 10-bit, BT.2020 PQ, full range
Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same: the file is decoded but tone mapped down to SDR
  • If the HDR side looks clearly darker: the transfer function is being ignored or mapped incorrectly

Left half: HEIC, 10-bit, BT.2020 HLG, limited range
Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same or HDR side is darker: the file is not rendering in HDR

Left half: HEIC, 10-bit, BT.2020 HLG, full range
Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same or HDR side is darker: the file is not rendering in HDR

VP9 HDR video (10-bit)

Show VP9 videos Hide VP9 videos

These files contain HDR plain color 10-bit VP9 video in BT.2020 with a PQ or HLG transfer in varying configurations.

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same: the file is decoded but tone mapped down to SDR
  • If the HDR side looks clearly darker: the transfer function is being ignored or mapped incorrectly

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same: the file is decoded but tone mapped down to SDR
  • If the HDR side looks clearly darker: the transfer function is being ignored or mapped incorrectly

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same or HDR side is darker: the file is not rendering in HDR

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same or HDR side is darker: the file is not rendering in HDR

AV1 HDR video (10-bit)

Show AV1 videos Hide AV1 videos

These files contain HDR plain color 10-bit AV1 video in BT.2020 with a PQ or HLG transfer in varying configurations.

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same: the file is decoded but tone mapped down to SDR
  • If the HDR side looks clearly darker: the transfer function is being ignored or mapped incorrectly

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same: the file is decoded but tone mapped down to SDR
  • If the HDR side looks clearly darker: the transfer function is being ignored or mapped incorrectly

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same or HDR side is darker: the file is not rendering in HDR

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same or HDR side is darker: the file is not rendering in HDR

HEVC HDR video (10-bit)

Show HEVC videos Hide HEVC videos

These files contain HDR plain color 10-bit HEVC video in BT.2020 with a PQ or HLG transfer in varying configurations.

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same: the file is decoded but tone mapped down to SDR
  • If the HDR side looks clearly darker: the transfer function is being ignored or mapped incorrectly

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same: the file is decoded but tone mapped down to SDR
  • If the HDR side looks clearly darker: the transfer function is being ignored or mapped incorrectly

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same or HDR side is darker: the file is not rendering in HDR

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same or HDR side is darker: the file is not rendering in HDR

VP9 HDR video (12-bit)

Rarely used Show VP9 videos Hide VP9 videos

These files contain HDR plain color 12-bit VP9 video in BT.2020 with a PQ or HLG transfer in varying configurations.

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same: the file is decoded but tone mapped down to SDR
  • If the HDR side looks clearly darker: the transfer function is being ignored or mapped incorrectly

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same: the file is decoded but tone mapped down to SDR
  • If the HDR side looks clearly darker: the transfer function is being ignored or mapped incorrectly

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same or HDR side is darker: the file is not rendering in HDR

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same or HDR side is darker: the file is not rendering in HDR

AV1 HDR video (12-bit)

Rarely used Show AV1 videos Hide AV1 videos

These files contain HDR plain color 12-bit AV1 video in BT.2020 with a PQ or HLG transfer in varying configurations.

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same: the file is decoded but tone mapped down to SDR
  • If the HDR side looks clearly darker: the transfer function is being ignored or mapped incorrectly

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same: the file is decoded but tone mapped down to SDR
  • If the HDR side looks clearly darker: the transfer function is being ignored or mapped incorrectly

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same or HDR side is darker: the file is not rendering in HDR

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same or HDR side is darker: the file is not rendering in HDR

HEVC HDR video (12-bit)

Rarely used Show HEVC videos Hide HEVC videos

These files contain HDR plain color 12-bit HEVC video in BT.2020 with a PQ or HLG transfer in varying configurations.

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same: the file is decoded but tone mapped down to SDR
  • If the HDR side looks clearly darker: the transfer function is being ignored or mapped incorrectly

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same: the file is decoded but tone mapped down to SDR
  • If the HDR side looks clearly darker: the transfer function is being ignored or mapped incorrectly

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same or HDR side is darker: the file is not rendering in HDR

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same or HDR side is darker: the file is not rendering in HDR

VP9 HDR video (8-bit)

Shouldn't be used for HDR Show VP9 videos Hide VP9 videos

These files contain HDR plain color 8-bit VP9 video in BT.2020 with a PQ or HLG transfer in varying configurations.

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same: the file is decoded but tone mapped down to SDR
  • If the HDR side looks clearly darker: the transfer function is being ignored or mapped incorrectly

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same: the file is decoded but tone mapped down to SDR
  • If the HDR side looks clearly darker: the transfer function is being ignored or mapped incorrectly

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same or HDR side is darker: the file is not rendering in HDR

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same or HDR side is darker: the file is not rendering in HDR

AV1 HDR video (8-bit)

Shouldn't be used for HDR Show AV1 videos Hide AV1 videos

These files contain HDR plain color 8-bit AV1 video in BT.2020 with a PQ or HLG transfer in varying configurations.

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same: the file is decoded but tone mapped down to SDR
  • If the HDR side looks clearly darker: the transfer function is being ignored or mapped incorrectly

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same: the file is decoded but tone mapped down to SDR
  • If the HDR side looks clearly darker: the transfer function is being ignored or mapped incorrectly

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same or HDR side is darker: the file is not rendering in HDR

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same or HDR side is darker: the file is not rendering in HDR

HEVC HDR video (8-bit)

Shouldn't be used for HDR Show HEVC videos Hide HEVC videos

These files contain HDR plain color 8-bit HEVC video in BT.2020 with a PQ or HLG transfer in varying configurations.

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same: the file is decoded but tone mapped down to SDR
  • If the HDR side looks clearly darker: the transfer function is being ignored or mapped incorrectly

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same: the file is decoded but tone mapped down to SDR
  • If the HDR side looks clearly darker: the transfer function is being ignored or mapped incorrectly

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same or HDR side is darker: the file is not rendering in HDR

Right half: plain SDR reference
  • If the HDR side is clearly brighter than the reference half: HDR is active
  • If both sides look about the same or HDR side is darker: the file is not rendering in HDR