TanStack/form

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🤖 Headless, performant, and type-safe form state management for TS/JS, React, Vue, Angular, Solid, and Lit.

Stars: 6.7k
Forks: 682
Open beginner issues: 0
Indexed issues: 120
Avg merge: 5d 18h
Merged PRs (30d): 7

Dominant language: TypeScript
License: MIT
Last GitHub push: Sep 14, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

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120 open issues indexed

[v2][vue] `Field` keeps a stale field API after `ArrayField` `removeValue()` shifts items, so shifted errors aren't rendered Open

area: runtime Needs reproduction scope: vue type: undecided v2

Difficulty 3/5 1-2 days Newbie friendliness 76/100

TanStack/form#2391 · 2 comments · Opened Sep 14, 2026
[v2][vue] Field components registered with `createFormHook` don't rerender on field state changes, and lose their field API after `form.reset()` Open

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

TanStack/form#2390 · 1 reaction · Opened Sep 14, 2026
svelte, angular and lit adapters have no SSR-safe default formId Open

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

TanStack/form#2388 · Opened Sep 12, 2026
Pre-reset field validation completion clears a newer validation status Open

Difficulty 3/5 1-2 days Newbie friendliness 78/100

TanStack/form#2384 · Opened Sep 11, 2026
Field async validation reapplies stale errors after form.reset() Open

Difficulty 3/5 1-2 days Newbie friendliness 78/100

TanStack/form#2381 · Opened Sep 11, 2026
Field value change in FormGroup causes all fields in FormGroup to re-render Open

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

TanStack/form#2377 · 1 comment · Opened Sep 9, 2026
Async validator doesn't re-trigger `isValidating` after first failed validation Open

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

TanStack/form#2372 · Opened Sep 4, 2026
[v2] Make `createServerValidate` use params from plugin Open

area: runtime area: types scope: react type: enhancement v2

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

TanStack/form#2370 · Opened Sep 3, 2026
[v2] Allow nesting of field groups Open

area: runtime scope: core type: enhancement v2

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

TanStack/form#2363 · Opened Aug 31, 2026
[v2]: make fieldComponents less strict to allow grouping Open

area: types scope: react type: enhancement v2

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

TanStack/form#2360 · Opened Aug 25, 2026
[v2 alpha] devtools are always light mode Open

area: runtime scope: devtools type: bug v2

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

TanStack/form#2357 · Opened Aug 24, 2026
Aborted async Standard Schema validation can overwrite newer form state Open

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

TanStack/form#2346 · Opened Aug 18, 2026
[v2] solid-form 2.0.0-alpha.1 cannot be imported under Solid 2, but its peer range permits it Open

area: runtime scope: solid type: enhancement v2

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

TanStack/form#2342 · 1 comment · Opened Aug 17, 2026
[v2] Blurring the field with "change" trigger clears errors. Open

area: runtime scope: core type: undecided v2

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

TanStack/form#2341 · 7 comments · Opened Aug 17, 2026
FormGroupApi.getRelatedFields and FieldApi.validate() use unguarded startsWith for group membership, matching unrelated fields with a shared name prefix Open

area: runtime scope: core type: bug v1

Difficulty 2/5 1-3 hours Newbie friendliness 82/100

TanStack/form#2337 · 1 comment · Opened Aug 16, 2026
[v2] Typed form context Open

area: runtime area: types type: enhancement v2

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

TanStack/form#2314 · Opened Aug 10, 2026
[v2] Standardize exception handling during submission Open

area: types scope: core v2

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

TanStack/form#2306 · Opened Aug 9, 2026
[v2] Standardize the example projects Open

scope: core type: chore type: docs v2

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

TanStack/form#2305 · Opened Aug 9, 2026
[v2] Use consistent children syntax in React documentation and examples Open

scope: react type: docs v2

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

TanStack/form#2304 · 1 comment · Opened Aug 9, 2026
[v2] Port submit metadata support from v1 Open

area: runtime area: types scope: core type: enhancement v2

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

TanStack/form#2303 · Opened Aug 9, 2026
[v2] Add on-demand field mask / `dirtyFields` generation Open

area: runtime scope: core type: enhancement v2

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

TanStack/form#2302 · Opened Aug 9, 2026
[v2] Expose the previous value to change listeners Open

area: runtime area: types scope: core type: enhancement v2

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

TanStack/form#2301 · Opened Aug 9, 2026
[v2] Add a listener for array-level field changes Open

area: runtime area: types scope: core type: enhancement v2

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

TanStack/form#2300 · Opened Aug 9, 2026
[v2] Unrendered fields are not marked as touched on submission Open

area: runtime scope: core type: bug v2

Difficulty 3/5 1-2 days Newbie friendliness 67/100

TanStack/form#2299 · 3 comments · Opened Aug 9, 2026
[v2] Support type narrowing for union form types Open

area: types scope: core type: enhancement

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

TanStack/form#2297 · Opened Aug 9, 2026
[v2] [RFC] What should happen when `Field` and `FormGroup` unmount? Open

area: runtime scope: core v2

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

TanStack/form#2296 · 2 comments · 1 reaction · Opened Aug 9, 2026
FormApi: onSubmit/onServer error cleared on any non-matching validation cause, not just 'change' Open

v1 v2: needs investigation

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

TanStack/form#2295 · Opened Aug 9, 2026
setFieldValue clears errorMap.onMount but leaves errorSourceMap.onMount stale Open

v1 v2: needs investigation

Difficulty 2/5 1-3 hours Newbie friendliness 85/100

TanStack/form#2294 · 1 comment · Opened Aug 9, 2026
Regression: onSubmit can be invoked concurrently while a submission is in progress (v1.33.1) Open

v1 v2: needs investigation

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

TanStack/form#2279 · Opened Aug 7, 2026
[react-form-start] Cannot restore form state after post-validation submission errors Open

v1 v2: needs investigation

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

TanStack/form#2272 · Opened Aug 5, 2026
Svelte form - `state_proxy_equality_mismatch` warnings when calling `field.handleChange()` Open

v1 v2: needs investigation

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

TanStack/form#2256 · 1 comment · Opened Jul 23, 2026
Array item removal binds a surviving sibling's sub-Field to a stale, out-of-range index for one render (stable/non-index keys) Open

v1 v2: needs investigation

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

TanStack/form#2249 · Opened Jul 20, 2026
Form-level validator doesn't re-run after first submit while fields hold errors — bug or by design? Open

v1 v2: needs investigation

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

TanStack/form#2248 · Opened Jul 16, 2026
Using onChangeAsync in an array field causes isFieldsValidating to always be true after calling removeValue Open

v1 v2: needs investigation

Difficulty 3/5 1-2 days Newbie friendliness 54/100

TanStack/form#2234 · 1 comment · Opened Jul 8, 2026
Async default values not applied to untouched fields after other fields are edited Open

v1

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

TanStack/form#2229 · 1 comment · 1 reaction · Opened Jul 1, 2026
Resetting array fields does not trigger full re-render Open

v1 v2: needs investigation

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

TanStack/form#2228 · Opened Jun 30, 2026
Async initial array values are not set when form.Field is conditionally rendered Open

v1 v2: needs investigation

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

TanStack/form#2201 · Opened May 31, 2026
Value equality does not handle Temporals Open

v1 v2

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

TanStack/form#2195 · Opened May 26, 2026
Introduce an easy way to create errors from `onSubmit` Open

type: enhancement v1

TanStack/form#2188 · 7 comments · 54 reactions · 1 assignee · Opened May 19, 2026
@tanstack/devtools-event-client ships unconditionally in production bundles via form-core Open

v1 v2: needs investigation

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

TanStack/form#2132 · 4 comments · 1 reaction · Opened Apr 18, 2026
removeValue on array field incorrectly sets isTouched=true on all shifted siblings Open

v1 v2: needs investigation

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

TanStack/form#2131 · Opened Apr 16, 2026
_handleSubmit gates form-level validation behind field-level validity, causing incomplete error reports on submit Open

v1 v2: needs investigation

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

TanStack/form#2130 · 2 comments · 3 reactions · Opened Apr 16, 2026
Newly pushed array fields do not show form-level errors on submit while existing errors remain Open

v1 v2: needs investigation

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

TanStack/form#2129 · 2 comments · 3 reactions · Opened Apr 16, 2026
Field-level `onMount` errors are never cleared on linked-field revalidation Open

v1 v2: needs investigation

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

TanStack/form#2124 · 1 comment · Opened Apr 15, 2026
Field meta out of date when setting object field Open

v1 v2: needs investigation

Difficulty 3/5 1-2 days Newbie friendliness 25/100

TanStack/form#2113 · Opened Apr 8, 2026
perf(react-form): `form.Subscribe` causes unnecessary re-renders when selector returns objects or arrays with same content Open

v1 v2: needs investigation

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

TanStack/form#2090 · 4 comments · 3 reactions · Opened Mar 22, 2026
Using next.js server actions, fields are set to undefined Open

v1 v2: needs investigation

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

TanStack/form#2089 · 3 comments · Opened Mar 21, 2026
🐛Validation regression bug in react-form@1.28.4 Open

v1 v2: needs investigation

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

TanStack/form#2084 · 1 comment · Opened Mar 16, 2026
`z.union` errors surface under `""` key instead of field-level errors Open

v1 v2: needs investigation

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

TanStack/form#2081 · Opened Mar 13, 2026
Missing docs for the `useTransform` function Open

v1

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

TanStack/form#2075 · Opened Mar 10, 2026

TanStack/form

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