Free Tool
EXR Viewer
Open multilayer OpenEXR files in your browser. Cryptomatte click-to-pin, AOV inspection, all major compressions including DWAA/DWAB. No upload, no install.
What it does
Multilayer + multipart EXR
Open EXRs from Blender, Houdini, Nuke, Maya, Arnold, V-Ray, RenderMan. All major compressions: NO, RLE, ZIPS, ZIP, PIZ, PXR24, DWAA, DWAB. Multipart files with per-part channel groups.
Cryptomatte click-to-pin
Click an object to pin its matte. Preview coverage live. Export the matte as a PGM you can drop straight into Nuke or After Effects without re-rendering.
AOVs and pixel inspection
Channel browser with semantic grouping. Per-pixel readouts in both scene-linear and display-referred values. Source-interpretation override when the header lies about color space.
100% local
Files never leave the browser. Decode runs on your machine via a Web Worker; pixels render through WebGL2. Drop an EXR onto the viewer and nothing crosses the wire. No upload, no telemetry, no server in the loop. Works offline once the page is cached as a PWA.
It tells you what it can't do
This is a still-frame inspection tool, not a review suite. Sequence playback, deep data, color-critical final review, and production Cryptomatte editing still belong in desktop tools. The coverage page is the honest current boundary. It lists what the browser viewer is trusted to do, what it warns about, and what it won't try.
Read the coverage map →