Web GL - Browser compatibility - Help ! (urgent)

Hi there,
Does anyone got a spreadsheet/or link summarizing which browser is compatible with WebGL technology? I heard of a release so we could preview WebGL on safari from September? Does anyone got a good link to share ? I need a summary of compatible& non compatible browsers both desktop and on mobile - this would be massively useful. Thanks in advance for your prompt feedback !
Cheers,
Maz