MAX_COMBINED_UNIFORM_BLOCKS

Maximum number of uniform blocks available across shader stages. A uniform block groups many related uniform values into one bindable buffer-backed unit.

Check your device: WebGL2 Capabilities Report.

Overall Support

≥ means at least this value.

Reported value	Reports
≥ 23	100%
≥ 24	98%
≥ 27	49%
≥ 32	48%
≥ 35	25%
≥ 41	24%
≥ 44	20%
≥ 47	16%
≥ 63	6%
≥ 73	5%
≥ 81	3%
≥ 87	2%
≥ 96	1%

Platform Support

Platform

Reports

Android

Reported value	Reports
≥ 35	100%
≥ 36	99%
≥ 41	93%
≥ 42	92%
≥ 45	63%
≥ 59	58%
≥ 60	57%
≥ 71	21%
≥ 80	18%
≥ 215	9%

Chromium OS

Reported value	Reports
≥ 36	100%
≥ 45	99%
≥ 48	68%
≥ 60	67%

iOS

Reported value	Reports
≥ 24	100%
≥ 32	84%
≥ 45	3%

Linux

Reported value	Reports
≥ 36	100%
≥ 41	99%
≥ 42	98%
≥ 44	87%
≥ 45	83%
≥ 47	54%
≥ 59	53%
≥ 63	39%
≥ 73	38%
≥ 81	24%
≥ 87	14%
≥ 216	1%

Mac OS

Reported value	Reports
≥ 24	100%
≥ 27	90%
≥ 31	89%
≥ 32	86%
≥ 60	8%
≥ 70	6%

Windows

Reported value	Reports
≥ 23	100%
≥ 24	97%
≥ 42	2%

Browser Support

Browser

Reports

Chrome/Chromium

Reported value	Reports
≥ 23	100%
≥ 24	98%
≥ 27	49%
≥ 32	48%
≥ 35	28%
≥ 41	27%
≥ 44	21%
≥ 47	16%
≥ 59	15%
≥ 71	1%

Edge

Reported value	Reports
≥ 24	100%
≥ 28	7%
≥ 36	3%
≥ 45	2%
≥ 48	1%

Firefox

Reported value	Reports
≥ 24	100%
≥ 32	52%
≥ 42	51%
≥ 63	50%
≥ 73	49%
≥ 77	38%
≥ 81	23%
≥ 87	13%
≥ 215	4%

Opera

Reported value	Reports
≥ 24	100%
≥ 30	15%
≥ 32	14%
≥ 36	7%
≥ 45	5%
≥ 48	4%
≥ 72	2%
≥ 216	1%

Other

Reported value	Reports
≥ 24	100%
≥ 30	69%
≥ 36	27%
≥ 42	26%
≥ 48	25%
≥ 72	16%
≥ 84	14%
≥ 216	5%

Safari

Reported value	Reports
≥ 24	100%
≥ 30	77%
≥ 42	2%
≥ 60	1%

Samsung Internet

Reported value	Reports
≥ 24	100%
≥ 35	99%
≥ 60	98%
≥ 71	81%
≥ 83	78%
≥ 215	32%
≥ 216	31%