plotly/dash

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Data Apps & Dashboards for Python. No JavaScript Required.

Stars: 24.4k
Forks: 2.3k
Open beginner issues: 0
Indexed issues: 434
Avg merge: 2d 7h
Merged PRs (30d): 13

Dominant language: Python
License: MIT
Last GitHub push: Sep 18, 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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434 open issues indexed

[BUG] dcc.Input types don't support time and datetime-local Open

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

plotly/dash#3385 · Opened Aug 5, 2025
[BUG] Upload component applying styles on Drag/Drop Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 42/100

plotly/dash#3376 · Opened Jul 22, 2025
[BUG] Client side error in plotly when trying to draw a heatmap with height set and just a few values. Open

bug P1 regression

plotly/dash#3363 · 1 comment · 1 reaction · 1 assignee · Opened Jul 2, 2025
[BUG] dcc.Upload does not remain hidden or disabled after successful upload (callback with multiple Inputs) Open

bug P2

Difficulty 4/5 3-5 days Newbie friendliness 35/100

plotly/dash#3343 · 3 comments · Opened Jun 25, 2025
[BUG] dash_table.DataTable styling issues for header height and column width when using fixed_columns Open

bug P3

Difficulty 4/5 3-5 days Newbie friendliness 38/100

plotly/dash#3337 · Opened Jun 23, 2025
[BUG] numpy array not correctly read back from figure data Open

bug P2

Difficulty 3/5 1-2 days Newbie friendliness 45/100

plotly/dash#3307 · 3 comments · 2 reactions · Opened May 26, 2025
Autofilled values in dcc.Input with debounce=True are not detected on submit Open

bug P2

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

plotly/dash#3299 · 7 comments · Opened May 9, 2025
[BUG] Using pattern matching ALL for running argument fails when the list is empty Open

bug P3

Difficulty 3/5 1-2 days Newbie friendliness 38/100

plotly/dash#3297 · 1 comment · 1 reaction · Opened May 1, 2025
[BUG] DeprecationWarning: Parsing dates involving a day of month without a year specified is ambiguious and fails to parse leap day. Open

bug P3

Difficulty 4/5 3-5 days Newbie friendliness 25/100

plotly/dash#3293 · 4 comments · 1 reaction · Opened Apr 27, 2025
[BUG] Remaining Typing/Mypy errors after Dash 3.0.2 to Dash 3.0.4 upgrade Open

bug P3

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

plotly/dash#3292 · 3 comments · Opened Apr 26, 2025
[BUG] callback not triggered when input changes in some configurations Open

bug P3

plotly/dash#3285 · 1 comment · 1 assignee · Opened Apr 18, 2025
[BUG] merge_duplicate_headers breaks style_cell_conditional Open

bug P2

plotly/dash#3283 · 3 comments · 1 assignee · Opened Apr 17, 2025
Dash Tutorial incorrect for Generic Crossfilter Recipe Open

bug documentation P1 regression

plotly/dash#3267 · 8 comments · 2 assignees · Opened Apr 10, 2025
implement support for React 19 Open

feature P2

plotly/dash#3231 · 9 comments · 1 reaction · 1 assignee · Opened Mar 20, 2025
Version 3 adds breaking type annotations that do not comply with mypy Open

bug P2 regression

Difficulty 4/5 3-5 days Newbie friendliness 35/100

plotly/dash#3226 · 34 comments · 3 reactions · Opened Mar 18, 2025
deselect all tabs in dcc tab component Open

feature P3

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

plotly/dash#3218 · 2 comments · Opened Mar 14, 2025
Add support for retrieving `HTMLElement` by Dash component ID in clientside callbacks. Open

feature P2

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

plotly/dash#3208 · 1 comment · Opened Mar 11, 2025
Adding Pattern Matching selector ALLELSE Open

cs feature P1

plotly/dash#3206 · 2 comments · 1 assignee · Opened Mar 10, 2025
Typing error in pycharm and dash 3.0 Open

bug P1

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

plotly/dash#3198 · 1 reaction · Opened Mar 6, 2025
customdata is missing in clickData for Scattergl objects Open

bug P2

Difficulty 4/5 3-5 days Newbie friendliness 45/100

plotly/dash#3196 · 5 comments · Opened Feb 28, 2025
test_configs file is missing docstrings Open

feature P2

Difficulty 2/5 1-3 hours Newbie friendliness 50/100

plotly/dash#3194 · 4 comments · Opened Feb 26, 2025
"Error loading layout" in Google Colab Enterprise Notebooks Open

bug P2

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

plotly/dash#3192 · Opened Feb 25, 2025
Adding new Pattern Matching components don't trigger their related callback Open

bug dash-3.0 P2

plotly/dash#3191 · 4 comments · 2 reactions · 1 assignee · Opened Feb 25, 2025
[BUG] Long callbacks create processes Open

bug documentation P3

Difficulty 4/5 3-5 days Newbie friendliness 35/100

plotly/dash#3177 · Opened Feb 21, 2025
Dash Integration tests use `time.sleep` instead of timeouts Open

feature P2 testing

Difficulty 3/5 1-2 days Newbie friendliness 42/100

plotly/dash#3174 · Opened Feb 20, 2025
bug in pattern-matching background callbacks Open

bug community P2

plotly/dash#3169 · 1 comment · 1 assignee · Opened Feb 14, 2025
dcc.send_data_frame polars support Open

feature P2

Difficulty 3/5 1-2 days Newbie friendliness 45/100

plotly/dash#3153 · 3 comments · 2 reactions · Opened Feb 6, 2025
add dash-pivottable to core components Open

feature P2

Difficulty 5/5 Over a week Newbie friendliness 25/100

plotly/dash#3151 · Opened Feb 6, 2025
Sending large tiff files through `send_file` causes the callback to hang indefinitely Open

bug P2

Difficulty 4/5 3-5 days Newbie friendliness 25/100

plotly/dash#3146 · Opened Jan 31, 2025
`jupyter_mode='external'` doesn't work with `use_pages=True` Open

bug P2

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

plotly/dash#3132 · Opened Jan 24, 2025
Error on hover event of parallel coordinates graph component Open

bug P2

Difficulty 4/5 3-5 days Newbie friendliness 35/100

plotly/dash#3128 · Opened Jan 22, 2025
Background callbacks not working on iOS/iPhone and Safari Open

bug cs P2

Difficulty 4/5 3-5 days Newbie friendliness 35/100

plotly/dash#3123 · Opened Jan 15, 2025
Duplicate output callbacks across Python and JS namespaces fail if both set to allow_duplicate Open

bug P2

Difficulty 4/5 3-5 days Newbie friendliness 35/100

plotly/dash#3120 · 2 comments · Opened Jan 12, 2025
Add Filesystem as a backend for CeleryManager in background callbacks Open

cs feature P2

Difficulty 4/5 3-5 days Newbie friendliness 35/100

plotly/dash#3116 · 3 reactions · Opened Jan 3, 2025
customized x-csrftoken contains extra `undefined` Open

bug P2

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

plotly/dash#3114 · Opened Dec 31, 2024
Ghost categories are displayed after bar chart is updated with subset of categories. Open

bug P3

Difficulty 4/5 3-5 days Newbie friendliness 35/100

plotly/dash#3105 · Opened Dec 11, 2024
set_props only updating last output in background callbacks Open

bug P3

Difficulty 4/5 3-5 days Newbie friendliness 35/100

plotly/dash#3104 · 6 comments · 1 reaction · Opened Dec 11, 2024
add Python 3.13 to CI pipelines Open

feature infrastructure P1

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

plotly/dash#3100 · Opened Dec 9, 2024
[Feature Request] dcc.Tooltip optional caret/triangle Open

feature

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

plotly/dash#3088 · Opened Nov 21, 2024
[Feature Request] customisable dcc.Tooltip position/direction Open

feature

Difficulty 4/5 3-5 days Newbie friendliness 42/100

plotly/dash#3087 · Opened Nov 21, 2024
Delete button disappears upon use of page_action setting Open

bug P2

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

plotly/dash#3075 · 1 comment · Opened Nov 14, 2024
Memory Leakage When Navigating Away from Home Page with dash.register_page() Open

bug P2

Difficulty 4/5 3-5 days Newbie friendliness 35/100

plotly/dash#3074 · Opened Nov 13, 2024
Dash in Jupyter tries to bind to $HOST set by conda, cannot override Open

bug P2

Difficulty 3/5 1-2 days Newbie friendliness 45/100

plotly/dash#3065 · Opened Nov 7, 2024
Pattern-Matching Callbacks ALL have inconsistent order in dash 2.18.1 Open

bug P2

Difficulty 4/5 3-5 days Newbie friendliness 35/100

plotly/dash#3063 · 3 comments · Opened Nov 6, 2024
Improve Dependency Management by removing packages not needed at runtime Open

feature P2

Difficulty 4/5 3-5 days Newbie friendliness 38/100

plotly/dash#3062 · 2 comments · 2 reactions · Opened Nov 6, 2024
add "Zen of Dash" similar to that in Narwhals Open

feature P3

Difficulty 2/5 1-3 hours Newbie friendliness 42/100

plotly/dash#3053 · Opened Oct 24, 2024
investigate ways to reduce bundle size Open

feature P2 performance

Difficulty 5/5 Over a week Newbie friendliness 20/100

plotly/dash#3050 · 1 comment · 1 reaction · Opened Oct 22, 2024
kaggle can't create a web page using dash and vizro Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

plotly/dash#3049 · 2 comments · Opened Oct 22, 2024
Reset axes button in dcc.Graph modebar doesn't apply the range specified in yaxis_range Open

P3 sev-3

Difficulty 4/5 3-5 days Newbie friendliness 42/100

plotly/dash#3045 · 2 reactions · Opened Oct 17, 2024
add dash-uploader to dash core components Open

community feature P3

Difficulty 5/5 Over a week Newbie friendliness 30/100

plotly/dash#3037 · 7 comments · 2 reactions · Opened Oct 15, 2024

plotly/dash

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