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%
≥ 26	49%
≥ 32	48%
≥ 35	24%
≥ 39	23%
≥ 44	20%
≥ 45	19%
≥ 47	16%
≥ 52	15%
≥ 66	5%
≥ 77	4%
≥ 81	3%
≥ 90	2%
≥ 96	1%

Platform Support

Platform

Reports

Android

Reported value	Reports
≥ 36	100%
≥ 41	94%
≥ 42	93%
≥ 45	62%
≥ 59	57%
≥ 60	56%
≥ 66	19%
≥ 83	17%
≥ 215	7%

Chromium OS

Reported value	Reports
≥ 36	100%
≥ 45	99%
≥ 48	69%
≥ 60	68%

iOS

Reported value	Reports
≥ 24	100%
≥ 32	86%
≥ 45	2%

Linux

Reported value	Reports
≥ 30	100%
≥ 35	99%
≥ 42	98%
≥ 44	87%
≥ 45	82%
≥ 47	52%
≥ 69	37%
≥ 78	24%
≥ 90	15%
≥ 216	1%

Mac OS

Reported value	Reports
≥ 24	100%
≥ 28	91%
≥ 31	90%
≥ 32	87%
≥ 45	6%
≥ 70	5%

Windows

Reported value	Reports
≥ 23	100%
≥ 24	97%
≥ 30	2%

Browser Support

Browser

Reports

Chrome/Chromium

Reported value	Reports
≥ 23	100%
≥ 24	98%
≥ 26	49%
≥ 32	48%
≥ 35	28%
≥ 39	27%
≥ 44	22%
≥ 47	16%
≥ 60	15%
≥ 66	1%

Edge

Reported value	Reports
≥ 24	100%
≥ 30	7%
≥ 36	3%
≥ 45	2%
≥ 48	1%

Firefox

Reported value	Reports
≥ 24	100%
≥ 28	47%
≥ 42	46%
≥ 69	45%
≥ 72	44%
≥ 77	35%
≥ 81	21%
≥ 82	20%
≥ 90	12%
≥ 216	2%

Opera

Reported value	Reports
≥ 24	100%
≥ 28	14%
≥ 36	7%
≥ 45	5%
≥ 48	4%
≥ 60	3%
≥ 72	1%

Other

Reported value	Reports
≥ 24	100%
≥ 32	75%
≥ 36	18%
≥ 45	17%
≥ 72	14%
≥ 84	11%
≥ 216	4%

Safari

Reported value	Reports
≥ 24	100%
≥ 28	80%
≥ 42	1%

Samsung Internet

Reported value	Reports
≥ 35	100%
≥ 36	99%
≥ 60	98%
≥ 71	82%
≥ 83	81%
≥ 84	79%
≥ 215	30%