# Global Filtering (React) Guide

## Examples

Want to skip to the implementation? Check out these React examples:

- [Column Filters](../examples/filters)
- [Fuzzy Search](../examples/filters-fuzzy)

### React Setup

```tsx
import { useTable, tableFeatures, globalFilteringFeature, createFilteredRowModel, filterFns } from '@tanstack/react-table'

const features = tableFeatures({ globalFilteringFeature })

const table = useTable({
  features,
  rowModels: {
    filteredRowModel: createFilteredRowModel(filterFns),
  },
  columns,
  data,
})
```

## Global Filtering (React) Guide

Filtering comes in 2 flavors: Column Filtering and Global Filtering.

This guide will focus on global filtering, which is a filter that is applied across all columns.

### Client-Side vs Server-Side Filtering

If you have a large dataset, you may not want to load all of that data into the client's browser in order to filter it. In this case, you will most likely want to implement server-side filtering, sorting, pagination, etc.

However, as also discussed in the [Pagination Guide](./pagination#should-you-use-client-side-pagination), a lot of developers underestimate how many rows can be loaded client-side without a performance hit. The TanStack table examples are often tested to handle up to 100,000 rows or more with decent performance for client-side filtering, sorting, pagination, and grouping. This doesn't necessarily mean that your app will be able to handle that many rows, but if your table is only going to have a few thousand rows at most, you might be able to take advantage of the client-side filtering, sorting, pagination, and grouping that TanStack table provides.

> TanStack Table can handle thousands of client-side rows with good performance. Don't rule out client-side filtering, pagination, sorting, etc. without some thought first.

Every use-case is different and will depend on the complexity of the table, how many columns you have, how large every piece of data is, etc. The main bottlenecks to pay attention to are:

1. Can your server query all of the data in a reasonable amount of time (and cost)?
2. What is the total size of the fetch? (This might not scale as badly as you think if you don't have many columns.)
3. Is the client's browser using too much memory if all of the data is loaded at once?

If you're not sure, you can always start with client-side filtering and pagination and then switch to server-side strategies in the future as your data grows.

### Manual Server-Side Global Filtering

If you have decided that you need to implement server-side global filtering instead of using the built-in client-side global filtering, here's how you do that.

No `filteredRowModel` is needed for manual server-side global filtering. Instead, the `data` that you pass to the table should already be filtered. However, if you have added a `filteredRowModel` to `rowModels`, you can tell the table to skip it by setting the `manualFiltering` option to `true`.

```tsx
import {
  useTable,
  tableFeatures,
  globalFilteringFeature,
} from '@tanstack/react-table'

const features = tableFeatures({ globalFilteringFeature })

const table = useTable({
  features,
  rowModels: {}, // no filteredRowModel needed for manual server-side global filtering
  data,
  columns,
  manualFiltering: true,
})
```

Note: When using manual global filtering, many of the options that are discussed in the rest of this guide will have no effect. When manualFiltering is set to true, the table instance will not apply any global filtering logic to the rows that are passed to it. Instead, it will assume that the rows are already filtered and will use the data that you pass to it as-is.

### Client-Side Global Filtering

If you are using the built-in client-side global filtering, add the `globalFilteringFeature` to your features and the `filteredRowModel` to your row models:

```tsx
import {
  useTable,
  tableFeatures,
  globalFilteringFeature,
  createFilteredRowModel,
  filterFns,
} from '@tanstack/react-table'

const features = tableFeatures({ globalFilteringFeature })

const table = useTable({
  features,
  rowModels: {
    filteredRowModel: createFilteredRowModel(filterFns),
  },
  // other options...
})
```

### Global Filter Function

The `globalFilterFn` option allows you to specify the filter function that will be used for global filtering. The filter function can be a string that references a built-in filter function, a string that references a custom filter function registered in the registry passed to `createFilteredRowModel`, or a custom filter function passed directly.

```tsx
const table = useTable({
  features,
  rowModels: {
    filteredRowModel: createFilteredRowModel(filterFns),
  },
  data,
  columns,
  globalFilterFn: 'includesString', // built-in filter function
})
```

By default there are 12 built-in filter functions to choose from:

- `includesString` - Case-insensitive string inclusion
- `includesStringSensitive` - Case-sensitive string inclusion
- `equalsString` - Case-insensitive string equality
- `equals` - Strict equality `===`
- `weakEquals` - Weak equality `==`
- `arrIncludes` - The row's array (or string) value includes at least one of the filter values
- `arrIncludesAll` - The row's array value includes every filter value
- `arrIncludesSome` - The row's array value includes at least one of the filter values
- `arrHas` - The row's scalar value equals at least one of the filter values
- `inNumberRange` - Inclusive `[min, max]` number range (endpoints normalized and swapped if reversed)
- `between` - Exclusive min/max range (blank endpoints are open-ended)
- `betweenInclusive` - Inclusive min/max range (blank endpoints are open-ended)

You can also define your own custom global filter function and pass it directly to the `globalFilterFn` table option, as shown [below](#custom-global-filter-function).

### Global Filter State

The `globalFilter` state slice holds the current global filter value, usually a search string (the slice is typed as `any` so custom global filter functions can accept other value shapes). For reactive reads that should re-render your UI, use `table.state.globalFilter`. In event handlers, you can read the current snapshot with `table.atoms.globalFilter.get()`, but this read does not subscribe the component to future changes.

If you need access to the global filter state outside of the table, you can own the slice yourself. The recommended way in v9 is an external atom passed through the `atoms` table option. Atoms preserve fine-grained subscriptions, and the filter value can be used elsewhere (such as in a query key for server-side filtering) without forcing the component that owns the table to re-render.

```tsx
import { useCreateAtom, useSelector } from '@tanstack/react-store'

const globalFilterAtom = useCreateAtom<string>('')

// subscribe to the atom wherever you need the value (e.g. for a query key)
const globalFilter = useSelector(globalFilterAtom)

const table = useTable({
  features,
  rowModels: { filteredRowModel: createFilteredRowModel(filterFns) },
  // other options...
  atoms: {
    globalFilter: globalFilterAtom, // table.setGlobalFilter now updates globalFilterAtom
  },
})
```

Alternatively, the v8-style `state.globalFilter` plus `onGlobalFilterChange` pattern is still supported. It can be convenient for simple integrations or when migrating v8 code, but it is less fine-grained than external atoms. See the [Table State Guide](./table-state) for a deeper comparison.

```tsx
const [globalFilter, setGlobalFilter] = useState<string>('')

const table = useTable({
  features,
  rowModels: { filteredRowModel: createFilteredRowModel(filterFns) },
  // other options...
  state: {
    globalFilter,
  },
  onGlobalFilterChange: setGlobalFilter,
})
```

### Adding global filter input to UI

TanStack table will not add a global filter input UI to your table. You should manually add it to your UI to allow users to filter the table. For example, you can add an input UI above the table to allow users to enter a search term. Read the value reactively with `table.state.globalFilter` and update it with `table.setGlobalFilter`.

```tsx
return (
  <div>
    <input
      value={table.state.globalFilter ?? ''}
      onChange={e => table.setGlobalFilter(String(e.target.value))}
      placeholder="Search..."
    />
  </div>
)
```

### Custom Global Filter Function

If you want to use a custom global filter function, you can define the function and pass it to the `globalFilterFn` option.

> **Note:** It is often a popular idea to use fuzzy filtering functions for global filtering. This is discussed in the [Fuzzy Filtering Guide](./fuzzy-filtering).

```tsx
const customFilterFn = (row, columnId, filterValue) => {
  return // true if the row should be included in the filtered rows
}

const table = useTable({
  features,
  rowModels: { filteredRowModel: createFilteredRowModel(filterFns) },
  // other options...
  globalFilterFn: customFilterFn,
})
```

### Initial Global Filter State

If you want to set an initial global filter state when the table is initialized, you can pass the global filter state as part of the table `initialState` option. However, if you are controlling the slice yourself, set the starting value on your external atom or React state instead.

```tsx
const table = useTable({
  features,
  rowModels: { filteredRowModel: createFilteredRowModel(filterFns) },
  // other options...
  initialState: {
    globalFilter: 'search term', // if not controlling globalFilter state, set initial state here
  },
})
```

> NOTE: Do not use both `initialState.globalFilter` and a controlled `globalFilter` (via `atoms` or `state`) at the same time, as the controlled value will override `initialState.globalFilter`.

### Disable Global Filtering

By default, global filtering is enabled for all columns. You can disable the global filtering for all columns by using the enableGlobalFilter table option. You can also turn off both column and global filtering by setting the enableFilters table option to false.

Disabling global filtering will cause the column.getCanGlobalFilter API to return false for that column.

```tsx
const columns = [
  {
    header: () => 'Id',
    accessorKey: 'id',
    enableGlobalFilter: false, // disable global filtering for this column
  },
  //...
]
//...
const table = useTable({
  features,
  rowModels: { filteredRowModel: createFilteredRowModel(filterFns) },
  // other options...
  columns,
  enableGlobalFilter: false, // disable global filtering for all columns
})
```

### Global Filter APIs

There are several APIs that are useful for hooking up your global filter UI:

- `table.setGlobalFilter` - Set the global filter value. Useful for connecting a search input's `onChange` handler.
- `table.resetGlobalFilter` - Reset the global filter value to its initial state, or clear it with `table.resetGlobalFilter(true)`.
- `table.getGlobalFilterFn` - Returns the filter function currently used for global filtering.
- `table.getGlobalAutoFilterFn` - Returns the default global filter function (currently `includesString`).
- `column.getCanGlobalFilter` - Returns whether a column participates in global filtering. Useful for debugging which columns are searched.