WebGL 1 Features :

If features are not what you expect, check chrome://gpu/ or about:support.

                     Max vertex attributes: 16
                       Max varying vectors: 31

                Max vertex uniform vectors: 4096
              Max fragment uniform vectors: 4096

          Max fragment texture image units: 32
            Max vertex texture image units: 32
          Max combined texture image units: 64

                       Max 2D texture size: 8192 x 8192
                     Max cube texture size: 16384 x 16384 x 6

                    Max texture anisotropy: 16

                          Point size range: 1 - 1023
                          Line width range: 1 - 1

                   Max viewport dimensions: 8192 x 8192
                     Max renderbuffer size: 8192 x 8192

                     Framebuffer RGBA bits: 8,8,8,8
                      depth + stencil bits: 24,8
                             subpixel bits: 4

                              MSAA samples: 4
                       MSAA sample buffers: 1

Supported formats for UBYTE render targets     : RGBA RGB   
Supported formats for HALF_FLOAT render targets: RGBA RGB   
Supported formats for full FLOAT render targets: RGBA RGB   

       Max multiple render targets buffers: 8

     High float precision in vertex shader: 23 (-2127 - 2127)
   Medium float precision in vertex shader: 10 (-215 - 215)
      Low float precision in vertex shader: 10 (-215 - 215)

   High float precision in fragment shader: 23 (-2127 - 2127)
 Medium float precision in fragment shader: 10 (-215 - 215)
    Low float precision in fragment shader: 10 (-215 - 215)

       High int precision in vertex shader: 0 (-231 - 230)
     Medium int precision in vertex shader: 0 (-215 - 214)
        Low int precision in vertex shader: 0 (-215 - 214)

     High int precision in fragment shader: 0 (-231 - 230)
   Medium int precision in fragment shader: 0 (-215 - 214)
      Low int precision in fragment shader: 0 (-215 - 214)

                      Supported extensions: ANGLE_instanced_arrays
EXT_blend_minmax
EXT_clip_control
EXT_color_buffer_half_float
EXT_depth_clamp
EXT_float_blend
EXT_frag_depth
EXT_polygon_offset_clamp
EXT_shader_texture_lod
EXT_texture_compression_bptc
EXT_texture_compression_rgtc
EXT_texture_filter_anisotropic
EXT_texture_mirror_clamp_to_edge
EXT_sRGB
OES_element_index_uint
OES_fbo_render_mipmap
OES_standard_derivatives
OES_texture_float
OES_texture_float_linear
OES_texture_half_float
OES_texture_half_float_linear
OES_vertex_array_object
WEBGL_color_buffer_float
WEBGL_compressed_texture_astc
WEBGL_compressed_texture_etc
WEBGL_compressed_texture_etc1
WEBGL_compressed_texture_s3tc
WEBGL_compressed_texture_s3tc_srgb
WEBGL_debug_renderer_info
WEBGL_debug_shaders
WEBGL_depth_texture
WEBGL_draw_buffers
WEBGL_lose_context
WEBGL_multi_draw
WEBGL_polygon_mode
WebGL renderer: WebKit WebGL WebGL vendor: WebKit WebGL version: WebGL 1.0 (OpenGL ES 2.0 Chromium) Shading language version: WebGL GLSL ES 1.0 (OpenGL ES GLSL ES 1.0 Chromium) Unmasked renderer: ANGLE (Google, Vulkan 1.3.0 (SwiftShader Device (LLVM 10.0.0) (0x0000C0DE)), SwiftShader driver) Unmasked vendor: Google Inc. (Google)

WebGL 2 Features :

                     Max vertex attributes: 16
                       Max varying vectors: 31

                Max vertex uniform vectors: 4096
              Max fragment uniform vectors: 4096

             Max vertex uniform components: 16384
    Max combined vertex uniform components: 245760
           Max fragment uniform components: 16384
  Max combined fragment uniform components: 245760

              Max vertex output components: 128
             Max fragment input components: 128

               Max uniform buffer bindings: 72
                    Max uniform block size: 65536

                 Max vertex uniform blocks: 14
               Max fragment uniform blocks: 14
               Max combined uniform blocks: 60

          Max fragment texture image units: 32
            Max vertex texture image units: 32
          Max combined texture image units: 64

Max transform feedback interleaved components: 128
Max transform feedback separate components: 4
Max transform feedback separate attributes: 4

                  Min program texel offset: -8
                  Max program texel offset: 7

                       Max 2D texture size: 8192 x 8192
                       Max 3D texture size: 2048 x 2048 x 2048
                     Max cube texture size: 16384 x 16384 x 6

                  Max array texture layers: 2048
                      Max texture LOD bias: 15
                    Max texture anisotropy: 16

                     Max elements vertices: 2147483647
                      Max elements indices: 2147483647

                          Point size range: 1 - 1023
                          Line width range: 1 - 1

                   Max viewport dimensions: 8192 x 8192
                     Max renderbuffer size: 8192 x 8192

                     Framebuffer RGBA bits: 8,8,8,8
                      depth + stencil bits: 24,8
                             subpixel bits: 4

                              MSAA samples: 4
                       MSAA sample buffers: 1

Supported formats for UBYTE render targets     : RGB RGBA R8 R8UI RG8 RG8UI RGB8 RGB565 RGBA8 SRGB8_ALPHA8 RGB5_A1 RGBA4 RGBA8UI
Supported formats for BYTE render targets      : R8I RG8I RGBA8I
Supported formats for SHORT render targets     : R16I RG16I RGBA16I
Supported formats for USHORT render targets    : R16UI RG16UI RGBA16UI
Supported formats for USHORT565 render targets : RGB RGB565
Supported formats for USHORT5551 render targets: RGBA RGB5_A1
Supported formats for USHORT4444 render targets: RGBA RGBA4
Supported formats for INT render targets       : R32I RG32I RGBA32I
Supported formats for UINT render targets      : R32UI RG32UI RGBA32UI
Supported formats for UINT10F11F11F render targets: R11F_G11F_B10F
Supported formats for UINT2101010 render targets  : RGB5_A1 RGB10_A2 RGB10_A2UI
Supported formats for HALF_FLOAT render targets: R16F RG16F R11F_G11F_B10F RGBA16F
Supported formats for full FLOAT render targets: R16F R32F RG16F RG32F R11F_G11F_B10F RGBA16F RGBA32F

       Max multiple render targets buffers: 8
                     Max color attachments: 8

     High float precision in vertex shader: 23 (-2127 - 2127)
   Medium float precision in vertex shader: 10 (-215 - 215)
      Low float precision in vertex shader: 10 (-215 - 215)

   High float precision in fragment shader: 23 (-2127 - 2127)
 Medium float precision in fragment shader: 10 (-215 - 215)
    Low float precision in fragment shader: 10 (-215 - 215)

       High int precision in vertex shader: 0 (-231 - 230)
     Medium int precision in vertex shader: 0 (-215 - 214)
        Low int precision in vertex shader: 0 (-215 - 214)

     High int precision in fragment shader: 0 (-231 - 230)
   Medium int precision in fragment shader: 0 (-215 - 214)
      Low int precision in fragment shader: 0 (-215 - 214)

                      Supported extensions: EXT_clip_control
EXT_color_buffer_float
EXT_color_buffer_half_float
EXT_conservative_depth
EXT_depth_clamp
EXT_float_blend
EXT_polygon_offset_clamp
EXT_texture_compression_bptc
EXT_texture_compression_rgtc
EXT_texture_filter_anisotropic
EXT_texture_mirror_clamp_to_edge
EXT_texture_norm16
NV_shader_noperspective_interpolation
OES_draw_buffers_indexed
OES_sample_variables
OES_shader_multisample_interpolation
OES_texture_float_linear
OVR_multiview2
WEBGL_clip_cull_distance
WEBGL_compressed_texture_astc
WEBGL_compressed_texture_etc
WEBGL_compressed_texture_etc1
WEBGL_compressed_texture_s3tc
WEBGL_compressed_texture_s3tc_srgb
WEBGL_debug_renderer_info
WEBGL_debug_shaders
WEBGL_lose_context
WEBGL_multi_draw
WEBGL_polygon_mode
WEBGL_stencil_texturing
Max client wait timeout WebGL: 0 Max server wait timeout: 0 WebGL renderer: WebKit WebGL WebGL vendor: WebKit WebGL version: WebGL 2.0 (OpenGL ES 3.0 Chromium) Shading language version: WebGL GLSL ES 3.00 (OpenGL ES GLSL ES 3.0 Chromium) Unmasked renderer: ANGLE (Google, Vulkan 1.3.0 (SwiftShader Device (LLVM 10.0.0) (0x0000C0DE)), SwiftShader driver) Unmasked vendor: Google Inc. (Google)