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

Open All

496 open issues indexed

Add properties that allow you to underline cancel lines in fonts such as Title, legend, etc Open

type: enhancement

chartjs/Chart.js#11941 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
PolarArea: point labels overlap on certain circumstances Open

type: bug

chartjs/Chart.js#11946 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Scales don't update when toggling data (compared to datasets) visibility Open

type: bug

chartjs/Chart.js#11949 · 2 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Upgrade eslint to latest version Open

type: enhancement

chartjs/Chart.js#11951 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Support for Bigints (on the y-axis) Open

type: enhancement

chartjs/Chart.js#11952 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
The `options.scales[scaleId].min` option hides the graph. Open

type: bug

chartjs/Chart.js#11953 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
chart.update('none') while animations are in progress is lost Open

type: bug

chartjs/Chart.js#11957 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Consistent Stack Border Radius for Bar Charts Open

type: enhancement

chartjs/Chart.js#11958 · 1 comment · 2 reactions · 0 assignees · Indexed Sep 14, 2026
Tooltip doesn't close when mouse leaves the chart area Open

type: bug

chartjs/Chart.js#11972 · 0 comments · 2 reactions · 0 assignees · Indexed Sep 14, 2026
Apply render optimizations when animation duration is 0 Open

type: enhancement

chartjs/Chart.js#11977 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Stacked Bar Chart with Groups wrong order when hiding the first dataset by clicking on the legend Open

type: bug

chartjs/Chart.js#11978 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Timing of `chart.update('none')` causing hover state to get stuck Open

type: bug

chartjs/Chart.js#11979 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Lib instantiates a new platform per chart Open

type: bug

chartjs/Chart.js#11981 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
The data line incorrectly reaching to the beyond data points when zooming Open

type: bug

chartjs/Chart.js#11982 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[BUG] Mozilla Firefox 133 - Chart slows down indescribably when using offset = false for big data Open

type: bug

chartjs/Chart.js#11990 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Superimposed bar chart Open

type: enhancement

chartjs/Chart.js#11998 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
When using Chart.js to display data in a bar chart, there is an issue with overlapping data, especially when the datasets array contains a large number of objects. Some bars are rendered incorrectly, overlapping each other. When the dataset becomes even larger (e.g., several thousand objects), the plugin stops rendering the chart entirely, showing only an empty space or a placeholder square. Open

type: bug

chartjs/Chart.js#12000 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[BUG] ExtraEasy chart with Bar + Custom plugin extends Bar - Bars overlap & render displayed incorrect Open

type: bug

chartjs/Chart.js#12001 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Line Chart Shows Scribbled/Glitched Lines Open

status: needs test case type: bug

chartjs/Chart.js#12002 · 5 comments · 3 reactions · 0 assignees · Indexed Sep 14, 2026
TimeScaleTimeOptions requires parser Open

type: bug type: types

chartjs/Chart.js#12003 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Bug : The event listeners like onMouseLeave, onMouseEnter and onScroll aren't working as expected on tooltip plugins. Open

type: bug

chartjs/Chart.js#12006 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Seperate tooltip with stacked Axis Open

type: enhancement

chartjs/Chart.js#12007 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Chart type mismatch in onClick and getRelativePosition Open

type: bug type: types

chartjs/Chart.js#12011 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add `above` and `below` line color options (similar to fill origin) Open

type: enhancement

chartjs/Chart.js#12013 · 2 comments · 2 reactions · 0 assignees · Indexed Sep 14, 2026
Feature Request: Expose cubic interpolation algorithm as utility function Open

type: enhancement

chartjs/Chart.js#12016 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Cannot use type: 'time' in scales x Open

type: bug

chartjs/Chart.js#12017 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Stepped/Segmented Bar chart Open

type: enhancement

chartjs/Chart.js#12022 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Chart size not set right after changing orientation in mobile view Open

type: bug

chartjs/Chart.js#12024 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Types: Object data format should allow null values for `y` for Line Charts Open

type: bug

chartjs/Chart.js#12027 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Splom and parallel plot Open

type: enhancement

chartjs/Chart.js#12029 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Problem with tooltips, legend and zoom Open

type: bug

chartjs/Chart.js#12030 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Pictogram icon stack chart type Open

type: enhancement

chartjs/Chart.js#12031 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Support for multiple date adapters Open

type: enhancement

chartjs/Chart.js#12033 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add Native Geographical Chart Support (Geo Maps) to Chart.js Open

status: implement externally type: enhancement

chartjs/Chart.js#12038 · 6 comments · 2 reactions · 0 assignees · Indexed Sep 14, 2026
Fix Bug setting active hover to undefined Open

chartjs/Chart.js#12042 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Doughnut Chart cutout Property Doesn’t Maintain Expected Line Thickness Open

type: bug

chartjs/Chart.js#12044 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Visual artifacts for line & radar charts on Firefox for Android Open

type: bug

chartjs/Chart.js#12045 · 0 comments · 2 reactions · 0 assignees · Indexed Sep 14, 2026
Missing space between multiline label inside tooltip Open

type: bug

chartjs/Chart.js#12049 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
How to run normally, without 'npm run dev'? Open

type: documentation

chartjs/Chart.js#12051 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Require not minimized chart.umd.js Open

type: enhancement

chartjs/Chart.js#12056 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Parsing data object does not allow for Array Label Open

type: bug

chartjs/Chart.js#12065 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Legend title horizontal paddings doesn't work Open

type: bug

chartjs/Chart.js#12066 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Wrong legend hitbox area when using textAlign right/center Open

type: bug

chartjs/Chart.js#12067 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
ES6 Module support Open

type: enhancement

chartjs/Chart.js#12074 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Title does not appear when configuration includes plugins Open

type: bug

chartjs/Chart.js#12077 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Color transitions do not work when CSS comments are in the color strings Open

type: bug

chartjs/Chart.js#12079 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Allow the tooltip to remain open on hover Open

type: enhancement

chartjs/Chart.js#12080 · 2 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Donut/Pie layout with circumference based on full circle Open

type: enhancement

chartjs/Chart.js#12081 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add stroke outline to axis title text Open

type: enhancement

chartjs/Chart.js#12092 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Unwanted white gap between bar border and bar fill Open

type: bug

chartjs/Chart.js#12094 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026

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