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Welcome to the WebGL Conformance Test Suite

Note: Before adding a new test or editing an existing test please read these guidelines.

This is the WebGL conformance test suite. You can find a the current “live” version at

NOTE TO USERS: Unless you are a WebGL implementor, there is no need to submit a conformance result using this process. Should you discover bugs in your browser‘s WebGL implementation, either via this test suite or otherwise, please report them through your browser vendor’s bug tracking system.

FOR WEBGL IMPLEMENTORS: Please follow the instructions below to create a formal conformance submission.

  1. Open webgl-conformance-tests.html in your target browser

  2. Press the “run tests” button

  3. At the end of the run, press “display text summary”

  4. Verify that the User Agent and WebGL renderer strings identify your browser and target correctly.

  5. Copy the contents of the text summary (starting with “WebGL Conformance Test Results”) and send via email to

Please see CONFORMANCE_RULES.txt in this directory for guidelines about what constitutes a conformant WebGL implementation.

Usage Notes:

There are various URL options you can pass in.

run:         Set to 1 to start the tests automatically

             Example: webgl-conformance-tests.html?run=1

version:     Set to the version of the harness you wish to run. Tests
             at this version or below will be run

             Example: webgl-conformance-tests.html?version=1.3.2

minVersion:  Set to the minimum version of each test to include. Only tests
             at this version or above will be inlcuded.

             Example: webgl-conformance-tests.html?minVersion=1.3.2

fast:        Only run tests not marked with --slow

             Example: webgl-conformance-tests.html?fast=true

skip:        Comma separated list of regular expressions of which tests to skip.

             Example: webgl-conformance-tests.html?skip=glsl,.*destruction\.html

include:     Comma separated list of regular expressions of which tests to include.

             Example: webgl-conformance-tests.html?include=glsl,.*destruction\.html

frames:      The number of iframes to use to run tests in parallel.

             Example: webgl-conformance-tests.html?frames=8

             Note the tests are not requried to run with anything other than frames = 1.


  • 2011/02/24: Version 1.0.0
  • 2012/02/23: Version 1.0.1
  • 2012/03/20: Version 1.0.2
  • 2013/02/14: Version 1.0.3 (beta)