Compatibility Status

Canvas

Feature	Status
toBlob()	No support, see toBuffer()

getContext()

Feature	Status
getContext('2d')	(yes)
getContext('webgl')	No support
getContext('webgl2')	No support
2d alpha context attribute	2.0.0
🔬 2d pixelFormat context attribute	2.0.0 ("A8", "RGB24", "RGB16_565", "A1", "RGB30")

toDataURL()

Feature	Status
image/png type	0.0.3
image/jpeg type	1.3.5 (2.0.0 on Windows)

⚠️ Non-standard APIs

Feature	Status
new Canvas(..., 'pdf')	0.11.0
new Canvas(..., 'svg')	1.2.0
new Canvas(Backend)	2.0.0
pngStream()	0.0.2, returns a true Stream in 0.5.2
jpegStream()	0.9.0 (2.0.0 on Windows)
pdfStream()	1.5.0 TODO this is undocumented
toBuffer()	0.0.1
toBuffer('raw')	1.6.0
toBuffer(callback) (async)	0.0.3
toBuffer PNG filters, compression level	1.1.0
toDataURL(callback) (async)	0.0.3
registerFont()	2.0.0

CanvasRenderingContext2D

Drawing rectangles

Feature	Status
clearRect(), fillRect(), strokeRect()	0.0.1

Drawing text

Feature	Status
fillText()	0.0.1
strokeText()	0.0.1
measureText()	0.0.1
measureText() returns advanced text metrics	2.0.0: actualBoundingBoxLeft, actualBoundingBoxRight, actualBoundingBoxAscent, actualBoundingBoxDescent, emHeightAscent, emHeightDescent, alphabeticBaseline (all but hangingBaseline, ideographicBaseline, fontBoundingBoxAscent, fontBoundingBoxDescent)

Line styles

Feature	Status
lineWidth	0.0.1
lineCap	0.0.1
lineJoin	0.0.1
miterLimit	0.0.1
getLineDash()	1.1.4
setLineDash()	1.1.4
lineDashOffset	1.1.4

Text styles

Feature	Status
font	0.0.2
textAlign	0.0.2
textBaseline	0.0.2
🔬 direction	No support, Issue #694
font supports font-stretch values	No support
font supports variant	1.6.5
font supports line-height	No support, not applicable
font shorthand values may be in any order	Proposed, #944
font supports size keywords (xx-small, etc.)	No support
font supports larger, smaller sizes	No support
font supports rem, em, q sizes	Proposed, #944
font supports ch, ex, cap, ic sizes	No support
font supports vh, vw, vmin, vmax, vi, vb, lh, rlh	No support, not applicable

Fill and stroke styles

Feature	Status
fillStyle	0.0.1
⚠️ fillColor	0.3.0
strokeStyle	0.0.1
#rgb, #rrggbb	0.0.1
rgb(), rgba()	0.0.1
hsl(), hsla()	1.2.0
transparent	0.0.1
rebeccapurple	1.2.0
#rgba, #rrggbbaa color	No support

Gradients and patterns

Feature	Status
createLinearGradient()	0.0.01
createRadialGradient()	0.0.01
createPattern()	0.10.0

Shadows

Feature	Status
shadowBlur	0.0.1
shadowColor	0.0.1
shadowOffsetX	0.0.1
shadowOffsetY	0.0.1

Paths

Feature	Status
beginPath(), closePath()	0.0.1
moveTo(), lineTo()	0.0.1
quadraticCurveTo(), bezierCurveTo()	0.0.1
arc()	0.0.1
arcTo()	0.3.0
🔬 ellipse()	2.0.0
rect()	0.0.1

Drawing paths

Feature	Status
fill(), stroke()	0.0.1
drawFocusIfNeeded()	No support, not applicable
scrollPathIntoView()	No support, not applicable
clip()	0.0.1
isPointInPath()	0.0.1
isPointInStroke()	No support

Transformations

Feature	Status
🔬 currentTransform	No support, Issue #658
rotate(), scale(), translate(), transform()	0.0.1
setTransform()	0.0.1
🔬 resetTransform()	0.0.1

Compositing

Feature	Status
globalAlpha	0.0.1
globalCompositeOperation	0.0.1

Drawing images

Feature	Status
drawImage()	0.0.8
ImageBitmap as source image	No support

Pixel manipulation

Feature	Status
createImageData()	0.1.0
getImageData()	0.1.0
putImageData()	0.1.0

Image smoothing

Feature	Status
🔬 imageSmoothingEnabled	1.0.2

The canvas state

Feature	Status
save()	0.0.1
restore()	0.0.1
canvas	0.0.1

Hit regions

Feature	Status
addHitRegion(), removeHitRegion(), clearHitRegions()	No support, not applicable

⚠️ Non-standard APIs

Feature	Status
patternQuality
textDrawingMode
filter
additional global composite operators
antialias

ImageData

Feature	Status
Basic support	0.1.0
imageData.data is a Uint8ClampedArray	1.2.8
ImageData() constructor	1.3.0

CanvasGradient

Feature	Status
Basic support	0.1.0

CanvasPattern

Feature	Status
Basic support	0.10.0
🔬 setTransform()	No support

Image

Feature	Status
Basic support	0.0.6
src = dataurl	0.8.0
⚠️ src = buffer	0.0.6
⚠️ dataMode	0.12.1
src = svgdata	2.0.0, but SVG is rasterized with source dimensions (Issue #957)

ImageBitmap, ImageBitmapFactories, ImageBitmapRenderingContext

No support, Issue #876