chartjs/Chart.js

Simple HTML5 Charts using the <canvas> tag

Stars: 67.7k
Forks: 11.9k
Open beginner issues: 0
Indexed issues: 496
Avg merge: 7h 39m
Merged PRs (30d): 5

Dominant language: JavaScript
License: MIT
Last GitHub push: Sep 14, 2026
Latest indexed: Sep 14, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: help wanted

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496 open issues indexed

Switch codesandbox templates to vitepress Open

type: bug

chartjs/Chart.js#10920 · 3 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
Attach observer doesn't work when canvas is inside of Shadow DOM Open

type: bug

chartjs/Chart.js#10924 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Issue while plotting boxplot Open

type: bug

chartjs/Chart.js#10934 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Register every used element again in custom charts (mentioned anywhere?) Open

type: documentation

chartjs/Chart.js#10938 · 4 comments · 2 reactions · 0 assignees · Indexed Sep 14, 2026
Can't register a custom scale on chartjs Open

type: bug type: types

chartjs/Chart.js#10975 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
ChartJs localizes numbers by default Open

type: bug

chartjs/Chart.js#10982 · 6 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
fill: 'stack' does not work with stepped lines Open

type: bug

chartjs/Chart.js#10989 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
"responsive" option problem since v4 Open

type: bug

chartjs/Chart.js#11005 · 87 comments · 49 reactions · 0 assignees · Indexed Sep 14, 2026
Chart.js v4 x-axis time series labels are not displaying properly Open

type: bug

chartjs/Chart.js#11009 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
fill:'stack' consider dataset out of the stack Open

type: bug

chartjs/Chart.js#11012 · 3 comments · 2 reactions · 0 assignees · Indexed Sep 14, 2026
Allow dataset parsing to extract options from dataset (e.g. labels, colors, ...) Open

type: enhancement

chartjs/Chart.js#11015 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Before we get out of the slide offset is getting closed Open

type: bug

chartjs/Chart.js#11026 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Uncaught TypeError: Cannot read properties of null (reading 'a') it's because dependencies @kurkle+color Open

status: needs test case type: bug

chartjs/Chart.js#11029 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Not having a changelog document is a mistake Open

type: documentation

chartjs/Chart.js#11035 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Mixing stepped line and bars Open

type: bug

chartjs/Chart.js#11038 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Export `package.json` Open

type: enhancement

chartjs/Chart.js#11040 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Chart data type is incorrect in 4.1.2 Open

type: bug type: types

chartjs/Chart.js#11064 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Fixed X-Axis or Y-Axis when the graph has large amount of data or a scroll. Open

type: enhancement

chartjs/Chart.js#11068 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Chart shrinking uncontrollably on browser zoom Open

type: bug

chartjs/Chart.js#11089 · 61 comments · 6 reactions · 0 assignees · Indexed Sep 14, 2026
colors don't change after update() Open

type: bug

chartjs/Chart.js#11096 · 1 comment · 3 reactions · 0 assignees · Indexed Sep 14, 2026
barThickness: 'flex' not behaving correctly when having date values with date adapter Open

type: bug

chartjs/Chart.js#11101 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Update prefixes to already existing proxy Open

type: enhancement

chartjs/Chart.js#11104 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Dynamic spacing needed Open

type: bug

chartjs/Chart.js#11109 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Tooltip needs to be registered globally Open

type: bug

chartjs/Chart.js#11111 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
New polar chart type Open

type: enhancement

chartjs/Chart.js#11131 · 12 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Grid dash option in the wrong place Open

type: bug

chartjs/Chart.js#11136 · 6 comments · 3 reactions · 0 assignees · Indexed Sep 14, 2026
Chart RWD Issue : Chart canvas is decreased when the screen is decreased , but the canvas is not increased again. Open

type: bug

chartjs/Chart.js#11139 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
not work set align: 'inner' Open

type: enhancement

chartjs/Chart.js#11141 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
It seems that animated charts shrink on Chrome on mobile devices since V4 Open

type: bug

chartjs/Chart.js#11147 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
PieController requires LinearScale in webpack production mode Open

type: bug

chartjs/Chart.js#11157 · 2 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Stacked doughnut charts Open

type: enhancement

chartjs/Chart.js#11162 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
When developing a real-time chart, the x-axis does not move to the left. Open

type: bug

chartjs/Chart.js#11166 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Point drag Open

type: enhancement

chartjs/Chart.js#11171 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Enable animation on inner nodes of the options Open

type: enhancement

chartjs/Chart.js#11172 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Cannot plot scatter plot in chart having multiple x-axis labels Open

type: bug

chartjs/Chart.js#11175 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Chart.defaults.datasets is empty/cannot set properties of undefined Open

type: bug

chartjs/Chart.js#11176 · 0 comments · 4 reactions · 0 assignees · Indexed Sep 14, 2026
Line graph: Per-data-point (vertical) backgroundColor capabilities Open

type: enhancement

chartjs/Chart.js#11179 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Show multiple tooltips Open

type: bug

chartjs/Chart.js#11192 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
color$1.Color is not a constructor Open

type: bug

chartjs/Chart.js#11193 · 3 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Legend visible for non visible datasets when using min/max Open

type: bug

chartjs/Chart.js#11194 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Wrong max y-axis value when x-axis limited with min/max Open

type: bug

chartjs/Chart.js#11195 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
rotated x-axis ticks shifting to the left when updating v3.9.1 to v4.2.1 Open

type: bug

chartjs/Chart.js#11197 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
`DateAdapter#format` type declaration error Open

type: bug

chartjs/Chart.js#11199 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Event listeners for plugin lifecycle methods Open

type: enhancement

chartjs/Chart.js#11200 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
chart.js (2,3,4,master) do not work on evironments loading also prototype.js Open

type: bug

chartjs/Chart.js#11201 · 4 comments · 5 reactions · 0 assignees · Indexed Sep 14, 2026
Stacked bar charts: doesn't stack multiple datas with same x coordinate for one dataset Open

type: bug

chartjs/Chart.js#11202 · 0 comments · 3 reactions · 0 assignees · Indexed Sep 14, 2026
Error when trying to show a tooltip during data updates Open

type: bug

chartjs/Chart.js#11206 · 2 comments · 2 reactions · 0 assignees · Indexed Sep 14, 2026
TypeScript error border property on scale Open

type: bug type: types

chartjs/Chart.js#11213 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Logarithmic axes migration V4 Open

type: bug

chartjs/Chart.js#11215 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Cannot add multiple colours to the line chart Open

type: bug

chartjs/Chart.js#11230 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026

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