debug-js/debug

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A tiny JavaScript debugging utility modelled after Node.js core's debugging technique. Works in Node.js and web browsers

Stars: 11.5k
Forks: 992
Open beginner issues: 0
Indexed issues: 60

Dominant language: JavaScript
License: MIT
Last GitHub push: Apr 1, 2026
Latest indexed: Sep 21, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: help wanted
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

Open All

Add documentation around using ESM imports Open

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

debug-js/debug#1019 · 1 comment · 2 reactions · Opened Nov 11, 2025
propose for npm trusted publishing with OIDC Open

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

debug-js/debug#1010 · 5 comments · 5 reactions · Opened Sep 9, 2025
Debug as JSON Open

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

debug-js/debug#1008 · Opened Sep 8, 2025
console.group and groupCollapsed Open

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

debug-js/debug#1002 · Opened Jul 30, 2025
`.extend` is undefined in cloudflare workers Open

Difficulty 3/5 1-2 days Newbie friendliness 28/100

debug-js/debug#999 · 6 comments · Opened May 24, 2025
env variable DEBUG is not parsed correctly Open

Difficulty 1/5 Under an hour Newbie friendliness 45/100

debug-js/debug#989 · 3 comments · 1 reaction · Opened Jan 16, 2025
Ability to control other options programatically Open

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

debug-js/debug#986 · 1 comment · Opened Jan 15, 2025
Problem when using a library that uses `debug` in Deno Open

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

debug-js/debug#981 · 9 comments · 2 reactions · Opened Nov 28, 2024
Way to disable printf-style feature temporarily Open

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

debug-js/debug#976 · Opened Nov 9, 2024
Why cache namespaces? Open

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

debug-js/debug#974 · 2 reactions · Opened Oct 10, 2024
Unused format specifiers are not escaped. Open

Difficulty 3/5 1-2 days Newbie friendliness 30/100

debug-js/debug#967 · Opened Jul 15, 2024
Allow choice between STDERR and STDOUT Open

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

debug-js/debug#964 · Opened Jun 5, 2024
update colors for darkmode in devtools Open

Difficulty 1/5 Under an hour Newbie friendliness 45/100

debug-js/debug#962 · 1 comment · 1 reaction · Opened Apr 3, 2024
DEBUG_HIDE_DATE doesn't exist / do anything Open

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

debug-js/debug#959 · 1 comment · 6 reactions · Opened Feb 24, 2024
Display full error object all the time regardless of argument position Open

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

debug-js/debug#958 · 1 comment · Opened Feb 23, 2024
Avoid throwing errors Open

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

debug-js/debug#954 · Opened Jan 3, 2024
Debug mixed with console.log Open

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

debug-js/debug#952 · 9 comments · Opened Nov 15, 2023
Specify namespace with url in ESM Open

change-minor feature

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

debug-js/debug#948 · 8 comments · 5 reactions · Opened Oct 19, 2023
Specify peer dependency version Open

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

debug-js/debug#947 · 6 reactions · Opened Oct 17, 2023
Different formatting for namespaces on TTY and files Open

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

debug-js/debug#946 · Opened Oct 16, 2023
Redirect logs to file doesnt capture time Open

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

debug-js/debug#945 · 2 comments · Opened Oct 7, 2023
[Question] How do I enable millisecond diff? Open

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

debug-js/debug#940 · 1 comment · Opened Aug 14, 2023
Wildcard question: allow one excluding rest Open

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

debug-js/debug#932 · 1 comment · Opened May 4, 2023
Allow forcing the use of colors Open

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

debug-js/debug#922 · 3 comments · Opened Jan 7, 2023
Support for console.table like output Open

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

debug-js/debug#920 · 2 comments · Opened Dec 27, 2022
namespaces returned by debug.disable are not always accepted by debug.enable Open

bug

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

debug-js/debug#918 · 1 comment · Opened Dec 1, 2022
Doc suggestion: Using `debug` in WebWorkers / SharedWorkers Open

Difficulty 1/5 Under an hour Newbie friendliness 52/100

debug-js/debug#916 · 1 comment · 7 reactions · Opened Nov 10, 2022
Reroute logging of an npm package that uses debug to a different logging function Open

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

debug-js/debug#914 · Opened Sep 29, 2022
Float's are truncated Open

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

debug-js/debug#913 · 6 comments · Opened Sep 23, 2022
require('supports-color') will always fail, supports-color version 9+ for node Open

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

debug-js/debug#912 · 28 reactions · Opened Sep 9, 2022
Does 'debug' cache the DEBUG environment variable somewhere? Getting no output after changing namespace and DEBUG env var. Open

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

debug-js/debug#901 · 6 comments · 1 reaction · Opened Jul 10, 2022
Possibility to read in config at debug instance creation instead of at first (version) require/ import? Open

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

debug-js/debug#893 · 3 comments · Opened Jun 3, 2022
Override `log()` functions with global ones Open

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

debug-js/debug#886 · 3 comments · Opened Apr 19, 2022
Can't set global `log()` function overriding namespaces ones Open

bug change-patch needs-documentation pr-welcome

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

debug-js/debug#873 · 10 comments · 3 reactions · Opened Mar 4, 2022
Undocumented ```delete process.env.DEBUG``` when variable is empty Open

bug change-major

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

debug-js/debug#845 · 3 comments · 1 reaction · Opened Sep 17, 2021
Use ESModules instead of module.exports Open

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

debug-js/debug#786 · 25 comments · 23 reactions · Opened Oct 6, 2020
% symbol in object interpreted as formatter Open

bug change-patch help-wanted pr-welcome

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

debug-js/debug#766 · 6 comments · Opened Jun 23, 2020
Add unique ID without impacting wildcard functionality Open

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

debug-js/debug#758 · 1 comment · 3 reactions · Opened May 17, 2020
MS Edge, almost working colors Open

change-patch feature

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

debug-js/debug#751 · 3 comments · Opened Mar 19, 2020
Using debug with `esm` renders wrong formatted output for %o / %O Open

bug

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

debug-js/debug#744 · 2 comments · 2 reactions · Opened Jan 29, 2020
Cannot turn on debug within a sourceless page Open

question

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

debug-js/debug#743 · 1 comment · Opened Jan 24, 2020
colors not detected in AudioWorkletProcessor Open

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

debug-js/debug#742 · Opened Jan 22, 2020
Extending error object in express, but Debug does only show the stack trace Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 32/100

debug-js/debug#711 · 5 comments · 2 reactions · Opened Jun 21, 2019
WebStorm console, Windows Command Prompt do not support 256 colors Open

question

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

debug-js/debug#702 · 1 comment · Opened Apr 26, 2019
How can I write to file without colors and to console with colors? Open

question

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

debug-js/debug#698 · 8 comments · Opened Apr 11, 2019
Not printing any debug statements Open

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

debug-js/debug#696 · 8 comments · Opened Mar 19, 2019
Thoughts on locking version of "ms" dependency? Open

change-patch

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

debug-js/debug#688 · 6 comments · 1 reaction · Opened Feb 22, 2019
when %j exists in a formatted object, it pulls in the timestamp/delta Open

bug change-patch help-wanted pr-welcome

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

debug-js/debug#687 · 4 comments · Opened Feb 21, 2019
Does debug support React Native remote debugging. Open

question

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

debug-js/debug#685 · 7 comments · Opened Feb 18, 2019
Add Typescript types Open

help-wanted pr-welcome

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

debug-js/debug#669 · 4 comments · 15 reactions · Opened Jan 5, 2019

debug-js/debug

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