mobxjs/mobx

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Simple, scalable state management.

Stars: 28.2k
Forks: 1.8k
Open beginner issues: 0
Indexed issues: 39
Avg merge: 1h 38m
Merged PRs (30d): 1

Dominant language: TypeScript
License: MIT
Last GitHub push: Aug 20, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted

Beginner friendly Everything

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39 open issues indexed

Suspended observer renders can retain reactions despite native finalization Open

🐛 bug

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

mobxjs/mobx#4705 · 1 comment · 1 reaction · Opened Sep 7, 2026
React 19.2x introduced performance tracks cause observables to be accessed outside reaction Open

🐛 bug

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

mobxjs/mobx#4607 · 3 comments · 7 reactions · Opened Jan 9, 2026
eslint react hooks rules do not work when a component is wrapped in observer Open

🐛 bug

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

mobxjs/mobx#4594 · 4 comments · Opened Oct 20, 2025
Change in behaviour in mobx v5 and v6 Open

🐛 bug

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

mobxjs/mobx#4569 · 6 comments · Opened Jul 16, 2025
Bug: Server functions report false positive errors for MobX observables Open

🐛 bug

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

mobxjs/mobx#4561 · 1 comment · Opened Jun 15, 2025
Need tree-shaking import for the enableStaticRendering() function Open

🐛 bug

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

mobxjs/mobx#4520 · 3 comments · 1 reaction · Opened Feb 11, 2025
New decorators and enumerability Open

🐛 bug

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

mobxjs/mobx#4248 · 10 comments · 3 reactions · Opened Feb 1, 2025
Various deprecation warnings in tests Open

🍗 enhancement 🙏 help wanted

mobxjs/mobx#3923 · 1 assignee · Opened Sep 9, 2024
The same object being proxied has different references in scope of the same observable Open

❔ question

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

mobxjs/mobx#3917 · 3 comments · Opened Sep 4, 2024
New computed decorator does not apply action to setter Open

🐛 bug

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

mobxjs/mobx#3882 · 5 comments · Opened May 23, 2024
Incompatible with React Forget compiler Open

✋ on hold 🍗 enhancement

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

mobxjs/mobx#3874 · 16 comments · 16 reactions · Opened May 16, 2024
makeAutoObservable can't detect a generator after adding a default parameter value Open

📖 documentation

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

mobxjs/mobx#3872 · 6 comments · Opened May 11, 2024
[mobx-react] `Maximum update depth exceeded` error since `mobx-react@8` Open

🐛 bug

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

mobxjs/mobx#3865 · 6 comments · Opened Apr 26, 2024
`isolateGlobalState: true` can cause conflicts that prevent observable registration Open

🐛 bug

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

mobxjs/mobx#3860 · Opened Apr 18, 2024
[feature] Investigate running MobX on top of signals standard / polyfill Open

🍗 enhancement 🎁 mobx 🚧 experimental

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

mobxjs/mobx#3854 · 2 comments · 12 reactions · Opened Apr 4, 2024
Recommended pattern `MyComp = observer(function MyComp() {...})` leads to subtle bug Open

Difficulty 1/5 Under an hour Newbie friendliness 55/100

mobxjs/mobx#3836 · 11 reactions · Opened Feb 22, 2024
Invalid/extra warning in observable.box(array) Open

🐛 bug

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

mobxjs/mobx#3835 · Opened Feb 20, 2024
@action field uses addInitializer from decorator context but that does not exist in the (new) spec Open

🐛 bug

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

mobxjs/mobx#3817 · 2 comments · 1 reaction · Opened Jan 19, 2024
Uncaught ReferenceError: process is not defined Open

🐛 bug

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

mobxjs/mobx#3809 · 1 comment · Opened Dec 12, 2023
Inconsistent autorun behavior between first run and subsequent runs. Open

🐛 bug

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

mobxjs/mobx#3799 · 2 comments · Opened Nov 21, 2023
TC 39 decorators - use late initializers. Open

✋ on hold 🍗 enhancement

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

mobxjs/mobx#3789 · 2 reactions · Opened Nov 1, 2023
mobx update issues when store is prop-drilled. Open

🐛 bug

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

mobxjs/mobx#3778 · 1 comment · Opened Oct 22, 2023
`onBecomeUnobserved` not triggered immediately on `useObserver` component unmount Open

🐛 bug

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

mobxjs/mobx#3774 · 12 comments · 3 reactions · Opened Oct 17, 2023
No mechanism to keep child React components MobX-agnostic when using custom atoms Open

🐛 bug

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

mobxjs/mobx#3770 · 4 comments · Opened Oct 10, 2023
The value returned from `computed(() => ...)` shouldn't have a `set(...)` method Open

🐛 bug

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

mobxjs/mobx#3767 · 8 comments · Opened Sep 26, 2023
`CreateObservableOptions.equals` is ignored when creating arrays, maps, sets, and objects Open

🐛 bug

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

mobxjs/mobx#3762 · 1 comment · Opened Sep 22, 2023
Use getTime() to check for Date equality Open

❔ question

Difficulty 4/5 3-5 days Newbie friendliness 39/100

mobxjs/mobx#3757 · 4 comments · Opened Sep 12, 2023
forceUpdate bug on observer components: "Warning: Cannot update a component (`X`) while rendering a different component (`X`)" Open

🐛 bug

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

mobxjs/mobx#3752 · 4 comments · 1 reaction · Opened Sep 4, 2023
State change triggered from callbacks do not notify observers... under some circumstances? Open

🐛 bug

Difficulty 4/5 3-5 days Newbie friendliness 20/100

mobxjs/mobx#3738 · 1 comment · 1 reaction · Opened Jul 30, 2023
[performance] autorun with delay deriving state unnecessarily Open

🐛 bug

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

mobxjs/mobx#3724 · 10 comments · Opened Jul 17, 2023
[eslint-plugin-mobx] 'mobx/missing-observer' rule is suggested for all components Open

❔ question 🍗 enhancement

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

mobxjs/mobx#3721 · 5 comments · 2 reactions · Opened Jul 13, 2023
observe inside reaction effect cause unobservation after effect done Open

🐛 bug

Difficulty 4/5 3-5 days Newbie friendliness 28/100

mobxjs/mobx#3712 · 9 comments · Opened Jun 28, 2023
Observer() forces components to render despite no changes made to the store Open

🐛 bug

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

mobxjs/mobx#3693 · 5 comments · Opened May 14, 2023
Cannot read property prototype of undefined (issue forwarded from react-native-reanimated) Open

🐛 bug

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

mobxjs/mobx#3692 · 1 comment · Opened May 8, 2023
change observable value in compontDidMount will not trigger rerender Open

🐛 bug

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

mobxjs/mobx#3691 · 1 comment · Opened May 6, 2023
using `enableStaticRender()` on the server causes "read outside a reactive context" warnings on server Open

🐛 bug

mobxjs/mobx#3648 · 1 comment · 1 assignee · Opened Mar 7, 2023
`requiresReaction` in options of `computed` does not throw as indicated by the documentation Open

🐛 bug

mobxjs/mobx#3618 · 7 comments · 1 assignee · Opened Jan 30, 2023
reportChanged() shouldn't be able to be called on an atom outside of an action in strict mode Open

🐛 bug

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

mobxjs/mobx#3613 · 1 comment · Opened Jan 19, 2023
Bug in Example domain store code? - infinite reaction loop Open

📖 documentation

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

mobxjs/mobx#3329 · 1 comment · Opened Mar 8, 2022

mobxjs/mobx

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