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

Ticks with crossAlign: "far" on Y axes are drawn on top of axis Title Open

type: bug

chartjs/Chart.js#12095 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Scale grid offset wrong when condensed (responsive) Open

type: bug

chartjs/Chart.js#12100 · 8 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Support for CSS Level 4 Color Syntax (e.g. oklch(), space-separated hsl(), etc) Open

type: enhancement

chartjs/Chart.js#12101 · 5 comments · 3 reactions · 0 assignees · Indexed Sep 14, 2026
Dotted bar graph Open

type: enhancement

chartjs/Chart.js#12103 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Make the animations a plugin Open

type: enhancement

chartjs/Chart.js#12104 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Wrong tooltip value/formattedValue shown if category scale contains labels that convert to numbers within 0..labels.length Open

type: bug

chartjs/Chart.js#12107 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Position Pie Chart Open

type: enhancement

chartjs/Chart.js#12124 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Let's not ignore NaN Open

type: enhancement

chartjs/Chart.js#12125 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Touch-dragged tooltips do not close on clicks/taps outside the chart Open

type: bug

chartjs/Chart.js#12126 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 14, 2026
`getLabelForValue` returns the wrong format in time scale Open

type: bug

chartjs/Chart.js#12128 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Legend and vertical scroll Open

type: enhancement

chartjs/Chart.js#12129 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Proposal: Official `Temporal`/`Intl` time adapter, as a path to no external date library requirement Open

type: enhancement

chartjs/Chart.js#12140 · 4 comments · 2 reactions · 0 assignees · Indexed Sep 14, 2026
The example for overriding legend onClick is outdated Open

type: documentation

chartjs/Chart.js#12144 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Area Charts blank lines/zones glitch when using fill and tension Open

type: bug

chartjs/Chart.js#12147 · 0 comments · 2 reactions · 0 assignees · Indexed Sep 14, 2026
[Regression] rotateAnimation on doughnut charts missing in Chart.js 4.5.1 (Firefox only; worked in 4.5.0) Open

type: bug

chartjs/Chart.js#12151 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Stacked bar chart generates error with latest umd Open

type: bug

chartjs/Chart.js#12162 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Inconsistent step size behaviour when step size is not a divisor of (max - min) Open

type: bug

chartjs/Chart.js#12165 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
When `resizeDelay != 0`, it causes the initialized `chartArea` property to be undefined. Open

type: bug

chartjs/Chart.js#12166 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Animation doesn't work if I change the size of pie chart Open

type: documentation

chartjs/Chart.js#12167 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
The documentation and type correctness of dataElementType Open

type: bug

chartjs/Chart.js#12169 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Bug - Tooltips are possibly breaking down for some reason, it happens sometimes Open

type: bug

chartjs/Chart.js#12173 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Line chart disappears when zooming Open

type: bug

chartjs/Chart.js#12174 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Chart no longer resizes correctly when enlarging the window Open

type: bug

chartjs/Chart.js#12177 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Charts with a large number of hidden datasets perform poorly Open

type: bug

chartjs/Chart.js#12179 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Data selection potentially returns an object instead of just a plot value Open

type: enhancement

chartjs/Chart.js#12182 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Unable to render chart when dataset includes Number.MAX_VALUE Open

type: bug

chartjs/Chart.js#12184 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
the use of colors could use a better explanation on the homepage ;) great plugin though. total time to implement under 4 hrs 👍 Open

type: documentation

chartjs/Chart.js#12190 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Splice on data with a single argument throws an error. Open

type: bug

chartjs/Chart.js#12191 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Change defaults after render leads to: TypeError: Cannot read properties of undefined (reading 'height') Open

type: bug

chartjs/Chart.js#12196 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
floating bars incorrectly offset by stacked base value Open

type: bug

chartjs/Chart.js#12197 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
TimeScaleTimeOptions should be an interface so adapters can augment displayFormats Open

type: enhancement

chartjs/Chart.js#12220 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Array of tuples data structure not working when parsing is disabled Open

type: bug

chartjs/Chart.js#12232 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
chart.umd.js should have readable types Open

type: bug

chartjs/Chart.js#12234 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
`skipNull` is a configuration option, not a dataset field Open

type: documentation

chartjs/Chart.js#12235 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Axis titles are misaligned when the scale is reversed Open

type: bug

chartjs/Chart.js#12239 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Text spacing is not getting applied on the color legends in charts in windows. Open

type: bug

chartjs/Chart.js#12246 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Re-open #12097 - Merged Attempt fixing charts shrinking on certain zoom values in Chrome Open

type: bug

chartjs/Chart.js#12251 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Better default value for pointHoverRadius option Open

type: enhancement

chartjs/Chart.js#12252 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Enter animation suppressed when container's CSS pixel width is sub-integer (fractional getBoundingClientRect width) Open

type: bug

chartjs/Chart.js#12256 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Wrong bar width with multiple x-Axis Open

type: bug

chartjs/Chart.js#12262 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Security: Prototype pollution gadget in Chart.defaults path APIs Open

chartjs/Chart.js#12265 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Possible plugin lifecycle regression in Chart.js 4.5.1 causing chartjs-plugin-datalabels to draw before internal labels are prepared Open

type: bug

chartjs/Chart.js#12269 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Tooltip title callback is run with empty parameter array for filtered tooltips Open

type: bug

chartjs/Chart.js#12274 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Ticks may carry floating point drift Open

type: bug

chartjs/Chart.js#12281 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Chart.JS 4.5.1 breaks with TS `--stableTypeOrdering` and TS 7. Open

type: bug

chartjs/Chart.js#12285 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Legend pointStyle: 'line' does not apply dataset borderDash pattern Open

type: bug

chartjs/Chart.js#12291 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026

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