plotly/plotly.js

Open-source JavaScript charting library behind Plotly and Dash

Stars: 18.3k
Forks: 2k
Open beginner issues: 3
Indexed issues: 713
Avg merge: 2d 12h
Merged PRs (30d): 28

Dominant language: JavaScript
License: MIT
Last GitHub push: Sep 16, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue

Beginner friendly Everything

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713 open issues indexed

[BUG]: imperfect type definitions around graph export features Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

plotly/plotly.js#8057 · Opened Sep 19, 2026
[FEATURE]: accept font data (a URL or the bytes) for export and text measurement Open

feature

Difficulty 5/5 Over a week Newbie friendliness 45/100

plotly/plotly.js#8056 · Opened Sep 18, 2026
[BUG]: Color Translation is Costly Open

bug P2 size: 1

Difficulty 3/5 1-2 days Newbie friendliness 35/100

plotly/plotly.js#8054 · 1 reaction · Opened Sep 17, 2026
[BUG]: Y-axis autorange stops working when updating the xaxes range for subplots with shared x-axes and y-axes Open

bug P2 size: 1

Difficulty 3/5 1-2 days Newbie friendliness 68/100

plotly/plotly.js#8053 · 2 comments · Opened Sep 17, 2026
[FEATURE]: Add TypeScript definitions for custom bundles Open

enhancement feature P3 size: 3

Difficulty 4/5 3-5 days Newbie friendliness 55/100

plotly/plotly.js#8049 · 3 comments · Opened Sep 16, 2026
[CHORE]: remove `scatter` trace from custom bundle Open

chore P3 plotly-internal size: 5 task

Difficulty 5/5 Over a week Newbie friendliness 38/100

plotly/plotly.js#8048 · 2 comments · Opened Sep 16, 2026
[BUG]: Typing issue in relayout() Open

bug P3 size: 1

plotly/plotly.js#8047 · 2 comments · 1 assignee · Opened Sep 16, 2026
[Feature Request / Bug]: Limitations in scattergeo and natural earth projection when handling antimeridian crossing and programmatic centering Open

bug P2 size: 3

Difficulty 5/5 Over a week Newbie friendliness 42/100

plotly/plotly.js#8046 · 4 comments · Opened Sep 16, 2026
[BUG]: Image layer on a map trace renders a little north of where coordinates says it should Open

bug P3 size: 3

plotly/plotly.js#8043 · 1 comment · 1 assignee · Opened Sep 15, 2026
[BUG]: scattergl hover freezes with more than 100.000 points all with different x but same y Open

bug P2 size: 3

Difficulty 3/5 1-2 days Newbie friendliness 68/100

plotly/plotly.js#8036 · 2 comments · Opened Sep 11, 2026
[CHORE]: Change default to `true` for `responsive` config attribute Open

chore P1 plotly-internal size: 1 task

Difficulty 1/5 Under an hour Newbie friendliness 82/100

plotly/plotly.js#8034 · Opened Sep 10, 2026
[CHORE]: Deprecate plotly.js-mapbox* npm packages Open

chore P3 plotly-internal size: 1 task

Difficulty 2/5 1-3 hours Newbie friendliness 65/100

plotly/plotly.js#8029 · Opened Sep 8, 2026
[BUG]: The `quiver` trace ignores a discrete `marker.color` array and results in every arrow being black Open

bug P2 size: 3

Difficulty 3/5 1-2 days Newbie friendliness 72/100

plotly/plotly.js#8026 · Opened Sep 8, 2026
[CHORE]: Reintegrate `stackgl_modules` into top level library Open

chore P3 plotly-internal size: 1 task

Difficulty 4/5 3-5 days Newbie friendliness 58/100

plotly/plotly.js#8016 · 1 reaction · Opened Sep 3, 2026
[BUG] Colorbar thickness becomes too wide (~16k px) when marker.colorbar.thicknessmode='pixels' is applied via Plotly.restyle Open

bug P3 size: 1

Difficulty 3/5 1-2 days Newbie friendliness 68/100

plotly/plotly.js#8012 · 3 comments · Opened Sep 3, 2026
[BUG]: `shape.pattern` for bar trace causes color and pattern to be applied to wrong traces in unified hover tooltip Open

bug good for agent P3 size: 1

Difficulty 3/5 1-2 days Newbie friendliness 70/100

plotly/plotly.js#8008 · Opened Sep 2, 2026
[BUG]: Box/Lasso select stops working and makes page freeze after adjusting previously selected range Open

bug P2 size: 3

Difficulty 3/5 1-2 days Newbie friendliness 65/100

plotly/plotly.js#8007 · 4 comments · Opened Sep 2, 2026
[BUG] [REGRESSION]: `tickprefix`/`ticksuffix` ignored when `tickvals` provided Open

bug P3 size: 1

Difficulty 3/5 1-2 days Newbie friendliness 68/100

plotly/plotly.js#8006 · 2 comments · Opened Sep 1, 2026
[BUG]: `histogram2dcontour` uses wrong fill colors for negative values Open

bug P2 size: 1

Difficulty 3/5 1-2 days Newbie friendliness 65/100

plotly/plotly.js#8005 · Opened Sep 1, 2026
[BUG]: 3D scatter plot randomly freezes or heavily lags after hovering in plot Open

bug P2 size: 3

Difficulty 4/5 3-5 days Newbie friendliness 66/100

plotly/plotly.js#7999 · 1 comment · Opened Aug 31, 2026
[BUG]: Automargin for quiver plots is a little off with `arrowref: 'paper'` Open

bug P2 plotly-internal size: 3

Difficulty 4/5 3-5 days Newbie friendliness 55/100

plotly/plotly.js#7979 · 2 comments · Opened Aug 24, 2026
[FEATURE]: Spikelines in scatterternary plots Open

enhancement feature P2 size: 3

Difficulty 4/5 3-5 days Newbie friendliness 52/100

plotly/plotly.js#7972 · 11 comments · 1 reaction · Opened Aug 19, 2026
[FEATURE]: Allow annotations for scatterternary to reference ternary axes (a,b,c) instead of (x,y) Open

enhancement feature P2 size: 3

Difficulty 4/5 3-5 days Newbie friendliness 48/100

plotly/plotly.js#7971 · 1 comment · Opened Aug 19, 2026
[BUG]: forced minimum tick spacing (box/violin/candlestick/ohlc) leaks between figures on the same graph div Open

bug P2 size: 1

Difficulty 3/5 1-2 days Newbie friendliness 65/100

plotly/plotly.js#7968 · 1 comment · Opened Aug 16, 2026
[BUG]: When using scattergl and zooming in significantly, the lines and dots fail to align Open

bug P3 size: 1

Difficulty 3/5 1-2 days Newbie friendliness 55/100

plotly/plotly.js#7955 · 4 comments · Opened Aug 11, 2026
[BUG]: geo projections lose their D3 default rotation Open

bug P3 plotly-internal size: 3

Difficulty 3/5 1-2 days Newbie friendliness 72/100

plotly/plotly.js#7949 · 1 comment · Opened Aug 7, 2026
[BUG]: `sankey`: `node.x` / `node.y` are normalized against the wrong extent when `orientation: 'v'` Open

bug P2 size: 3

plotly/plotly.js#7947 · 1 comment · 1 assignee · Opened Aug 7, 2026
[BUG]: Sankey nodes are clipped at the bottom edge when positioned with node.x / node.y Open

bug P3 size: 1

Difficulty 3/5 1-2 days Newbie friendliness 35/100

plotly/plotly.js#7946 · 1 comment · 1 reaction · Opened Aug 7, 2026
[CHORE]: Update modebar button names to be more accurate/consistent Open

chore P3 plotly-internal size: 1 task

Difficulty 4/5 3-5 days Newbie friendliness 48/100

plotly/plotly.js#7942 · Opened Aug 6, 2026
[BUG]: tickformat doesn't adjust when labels are positioned below minor ticks (because of ticklabelindex) Open

enhancement feature P3 size: 3

plotly/plotly.js#7933 · 2 comments · 1 assignee · Opened Aug 5, 2026
[FEATURE]: Setting `itemheight` (analogous to `itemwidth`) to increase height of fill in legend Open

enhancement feature good first issue good for agent P3 size: 3

plotly/plotly.js#7924 · 3 comments · 1 assignee · Opened Jul 28, 2026
[FEATURE]: Support `fillpattern` in scatterternary plots Open

enhancement feature P3 size: 5

Difficulty 4/5 3-5 days Newbie friendliness 48/100

plotly/plotly.js#7923 · 1 comment · Opened Jul 28, 2026
[CHORE]: Update dependencies in topojson/, stackgl_modules/ Open

chore P2 plotly-internal size: 3 task

Difficulty 4/5 3-5 days Newbie friendliness 48/100

plotly/plotly.js#7922 · Opened Jul 27, 2026
[BUG]: Background image is rendered at an incorrect size after box zoom followed by mouse wheel zoom out Open

bug good first issue good for agent P2 size: 1

Difficulty 3/5 1-2 days Newbie friendliness 55/100

plotly/plotly.js#7914 · 8 comments · Opened Jul 21, 2026
[BUG]: `layout.uirevision` doesn't play well with map subplot auto-fit Open

bug good for agent P2 plotly-internal size: 3

Difficulty 3/5 1-2 days Newbie friendliness 68/100

plotly/plotly.js#7907 · 2 comments · Opened Jul 15, 2026
[FEATURE]: Show baseline image in test dashboard Open

enhancement feature P3 size: 3

Difficulty 3/5 1-2 days Newbie friendliness 58/100

plotly/plotly.js#7890 · 6 comments · Opened Jul 3, 2026
[CHORE]: Update plotly.js release instructions Open

chore documentation P1 plotly-internal size: 1

Difficulty 2/5 1-3 hours Newbie friendliness 52/100

plotly/plotly.js#7889 · 1 comment · Opened Jul 3, 2026
[BUG]: period labels can be positioned incorrectly when using ticklabelindex with only one minor tick Open

bug P2 size: 3

Difficulty 3/5 1-2 days Newbie friendliness 55/100

plotly/plotly.js#7876 · 1 reaction · Opened Jun 29, 2026
[BUG]: last period label sometimes not drawn when using negative ticklabelindex Open

bug P2 size: 3

Difficulty 3/5 1-2 days Newbie friendliness 65/100

plotly/plotly.js#7875 · 1 reaction · Opened Jun 29, 2026
[BUG]: In contour plot depending on data contour label can be trimmed Open

bug P3 size: 5

Difficulty 3/5 1-2 days Newbie friendliness 52/100

plotly/plotly.js#7866 · 3 comments · Opened Jun 25, 2026
[FEATURE]: pixel-based spacing for subplot domains (so titles can't overlap the plot above) Open

bug P2 size: 5

plotly/plotly.js#7835 · 2 comments · 1 reaction · 1 assignee · Opened Jun 10, 2026
[BUG]: Sankey warning breaks in @plotly/d3-sankey v0.12.3 Open

bug P3 size: 1

Difficulty 3/5 1-2 days Newbie friendliness 55/100

plotly/plotly.js#7832 · Opened Jun 9, 2026
[BUG]: marker.colorbar.tickfont.textcase='normal' blanks scattermap on initial render, but Plotly.restyle renders correctly Open

bug good first issue good for agent P3 size: 3

Difficulty 4/5 3-5 days Newbie friendliness 50/100

plotly/plotly.js#7869 · 4 comments · Opened Jun 7, 2026
[FEATURE]: Heatmap with custom colour for NaN values Open

enhancement feature P3 size: 1

Difficulty 4/5 3-5 days Newbie friendliness 48/100

plotly/plotly.js#7817 · 1 comment · Opened Jun 1, 2026
[BUG]: `ModeBar` generated type should be more specific Open

bug P2 plotly-internal size: 1

Difficulty 4/5 3-5 days Newbie friendliness 48/100

plotly/plotly.js#7800 · Opened May 11, 2026
[FEATURE]: Add separate types for each axis type Open

enhancement feature P2 plotly-internal size: 3

Difficulty 4/5 3-5 days Newbie friendliness 52/100

plotly/plotly.js#7797 · Opened May 8, 2026
[FEATURE]: Flexible tick label positioning on categorical axes (anchoring + between-category placement) Open

feature

Difficulty 5/5 Over a week Newbie friendliness 38/100

plotly/plotly.js#7794 · 4 comments · Opened May 5, 2026
[FEATURE]: Improve contributor documentation for WebGL rendering and debugging workflow Open

documentation feature P3 size: 1

Difficulty 3/5 1-2 days Newbie friendliness 48/100

plotly/plotly.js#7772 · 1 comment · Opened Apr 23, 2026
[BUG]: WebGL debugging: unclear origin of regl.clear() warnings in scattergl rendering Open

bug size: 1

Difficulty 5/5 Over a week Newbie friendliness 35/100

plotly/plotly.js#7771 · 1 comment · Opened Apr 23, 2026
[FEATURE]: minimum autorange window Open

enhancement feature P3 size: 5

Difficulty 5/5 Over a week Newbie friendliness 42/100

plotly/plotly.js#7770 · 1 comment · Opened Apr 23, 2026

A short digest of beginner-friendly GitHub issues.