glextension let's you see what your current OpenGL setup is capable of in terms of OpenGL Version, Renderer, Vendor and Extensions. Especially the latter is pretty important and that's where the main focus of this application lies on. It presents sort of a tree-list of a extensions grouped by corporation or institution that are currently available on your system.
Apart from that you can read the extension's specification either by double-clicking on the extension name in the tree-list or by using the auto-completion combo-box on the Specifications tab.

Commercial Use
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Distribute Original
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State Changes
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These details are provided for information only. No information here is legal advice and should not be used as such.
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30 Day SummaryNov 13 2025 — Dec 13 2025
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12 Month SummaryDec 13 2024 — Dec 13 2025
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