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Version: 5.x.x

API (Vue)

VueTolgee plugin

VueTolgee plugin attaches tolgee to Vue instance. That mean, that you can use global $t function in any vue component.

import { VueTolgee } from '@tolgee/vue';


app.use(VueTolgee, { tolgee });


{{ $t('key', 'Default value') }}

Check tolgee.t function interface.

It's also possible to use Tolgee without VueTolgee. Then you can use just TolgeeProvider and useTranslate for translating.


Provides Tolgee context. Use in root of your application.

import { TolgeeProvider } from '@tolgee/vue';


<App />

Prop fallback?

String | JSX.Element - it is rendered when Tolgee is loading translations instead of provided content. You can pass custom loading element when using Vue with JSX.

Prop tolgee?

Optionally provide tolgee instance. If you use VueTolgee, it's not necessary.

Slot fallback

Alternative for fallback use when you are using Vue with templates:

<App />
<template v-slot:fallback>

T component

import { T } from '@tolgee/vue';
<T keyName="..." :params="{ param: '...' }" />

Prop keyName

String - translation key.

Prop defaultValue?

String - You can pass default value, which will be rendered if there is no translation for this key (in selected language nor base language). If you won't provide this value, keyName will be rendered instead.

Prop params?

Record<string, string> - variable params, which can be used in translation value (read more about ICU message format).

Prop ns?

string - translation namespace

Prop noWrap?

Boolean (default: false)

  • false - in development mode translation will be wrapped
  • true - use when wrapping in dev mode causes problems, in this case in-context translation won't work

Prop language?

String - override current Tolgee language. This way you can switch to different language for separate translation. Load the language manually with tolgee.loadRecord.



Feature available from version 5.24.0

You can pass children to the T component which will be mapped to the translation parameters according to their slot names. This way you can use custom components as a part of the translation.

defaultValue="Click this {link}"
<template v-slot:link>
<a href="...">{{ $t('link_label', "link") }}</a>

Composable useTranslate

Use it for loading namespaces for specific components/pages or to get t function for translating.

function useTranslate(ns?: string | string[]): {
t: Ref<TFnType>;
isLoading: Ref<boolean>;

Parameter ns

  • string | string[] - namespace(s) which will be loaded

Property isLoading (Ref)

  • boolean - is true if any of listed namespaces is not loaded yet

Use this property to make sure you won't display translation translations before they are loaded.

Function t (Ref)

Returns requested translation and also subscribes component to translation/language changes, so component will be re-rendered every time translation changes. If you use namespaces, t function will automatically use first of the namespaces given to useTranslate function. You can override this by ns option.

t('key', 'Default value', <options>);

Check tolgee.t function interface.

Composable useTolgee

Returns tolgee instance as Ref. Allows subscription to different events, which will trigger re-render. Most common usecase is for language switch.

<div>Language: {{tolgee1.getLanguage()}}</div>
<div>Loading: {{tolgee2.isLoading()}}</div>

<script setup>
import { useTolgee } from '@tolgee/vue';

// gets updated on language change
const tolgee1 = useTolgee(['language']);

// gets updated when loading changes
const tolgee2 = useTolgee(['loading']);

// never gets updated
const tolgee3 = useTolgee();