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agent-skills/skills/vueuse-functions/references/useUrlSearchParams.md
Jason Woltje f5792c40be feat: Complete fleet — 94 skills across 10+ domains
Pulled ALL skills from 15 source repositories:
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- coreyhaines31/marketingskills: 25 (marketing, CRO, SEO, growth)
- better-auth/skills: 5 (auth patterns)
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- antfu/skills: 16 (Vue, Vite, Vitest, pnpm, Turborepo)
- Plus 13 individual skills from various repos

Mosaic Stack is not limited to coding — the Orchestrator and
subagents serve coding, business, design, marketing, writing,
logistics, analysis, and more.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-16 16:27:42 -06:00

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---
category: Browser
---
# useUrlSearchParams
Reactive [URLSearchParams](https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams)
## Usage
```ts
import { useUrlSearchParams } from '@vueuse/core'
const params = useUrlSearchParams('history')
console.log(params.foo) // 'bar'
params.foo = 'bar'
params.vueuse = 'awesome'
// url updated to `?foo=bar&vueuse=awesome`
```
### Hash Mode
When using with hash mode route, specify the `mode` to `hash`
```ts
import { useUrlSearchParams } from '@vueuse/core'
const params = useUrlSearchParams('hash')
params.foo = 'bar'
params.vueuse = 'awesome'
// url updated to `#/your/route?foo=bar&vueuse=awesome`
```
### Hash Params
When using with history mode route, but want to use hash as params, specify the `mode` to `hash-params`
```ts
import { useUrlSearchParams } from '@vueuse/core'
const params = useUrlSearchParams('hash-params')
params.foo = 'bar'
params.vueuse = 'awesome'
// url updated to `/your/route#foo=bar&vueuse=awesome`
```
### Custom Stringify Function
You can provide a custom function to serialize URL parameters using the `stringify` option. This is useful when you need special formatting for your query string.
```js
import { useUrlSearchParams } from '@vueuse/core'
// Custom stringify function that removes equal signs for empty values
const params = useUrlSearchParams('history', {
stringify: (params) => {
return params.toString().replace(/=(&|$)/g, '$1')
}
})
params.foo = ''
params.bar = 'value'
// url updated to `?foo&bar=value` instead of `?foo=&bar=value`
```
## Type Declarations
```ts
export type UrlParams = Record<string, string[] | string>
export interface UseUrlSearchParamsOptions<T> extends ConfigurableWindow {
/**
* @default true
*/
removeNullishValues?: boolean
/**
* @default false
*/
removeFalsyValues?: boolean
/**
* @default {}
*/
initialValue?: T
/**
* Write back to `window.history` automatically
*
* @default true
*/
write?: boolean
/**
* Write mode for `window.history` when `write` is enabled
* - `replace`: replace the current history entry
* - `push`: push a new history entry
* @default 'replace'
*/
writeMode?: "replace" | "push"
/**
* Custom function to serialize URL parameters
* When provided, this function will be used instead of the default URLSearchParams.toString()
* @param params The URLSearchParams object to serialize
* @returns The serialized query string (should not include the leading '?' or '#')
*/
stringify?: (params: URLSearchParams) => string
}
/**
* Reactive URLSearchParams
*
* @see https://vueuse.org/useUrlSearchParams
* @param mode
* @param options
*/
export declare function useUrlSearchParams<
T extends Record<string, any> = UrlParams,
>(
mode?: "history" | "hash" | "hash-params",
options?: UseUrlSearchParamsOptions<T>,
): T
```