--- description: Unofficial Capacitor plugin for the Google ML Kit GenAI Rewriting SDK to reword text in different tones and styles with Gemini Nano on Android. title: Capacitor ML Kit GenAI Rewriting Plugin - Capawesome image: https://capawesome.io/docs/assets/images/social/sdks/capacitor/mlkit/genai-rewriting.png --- [Skip to content ](#capacitor-ml-kit-genai-rewriting-plugin) [πŸ” Introducing the **Capacitor Vault** plugin β€” store secrets behind biometrics or a device passcode. ](/blog/announcing-the-capacitor-vault-plugin/) * [ SDKs ](/docs/sdks/) * [ Formbricks ](/docs/sdks/capacitor/formbricks/) * [ Geocoder ](/docs/sdks/capacitor/geocoder/) * [ Google Sign-In ](/docs/sdks/capacitor/google-sign-in/) * [ Grafana Faro ](/docs/sdks/capacitor/grafana-faro/) * [ Gyroscope ](/docs/sdks/capacitor/gyroscope/) * [ Haptics ](/docs/sdks/capacitor/haptics/) * [ Home Indicator ](/docs/sdks/capacitor/home-indicator/) * [ In-App Browser ](/docs/sdks/capacitor/in-app-browser/) * [ Install 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Questions ](https://docs.github.com/en/discussions/collaborating-with-your-community-using-discussions/participating-in-a-discussion#creating-a-discussion) * [ Blog ](/blog/) * Categories * [ Usage ](#usage) * [ API ](#api) * [ Enums ](#enums) * [ FAQ ](#faq) * [ Related Plugins ](#related-plugins) * [ Terms & Privacy ](#terms-privacy) * [ Newsletter ](#newsletter) * [ Changelog ](#changelog) * [ License ](#license) # Capacitor ML Kit GenAI Rewriting Plugin[ΒΆ](#capacitor-ml-kit-genai-rewriting-plugin "Permanent link") Unofficial Capacitor plugin for [ML Kit GenAI Rewriting](https://developers.google.com/ml-kit/genai/rewriting).[1](#fn:1) > \[!WARNING\] The ML Kit GenAI APIs are currently in **beta**. The API surface and behavior may change in future releases. [ ![Deliver Live Updates to your Capacitor app with Capawesome Cloud](../../../../assets/external/cloud.capawesome.io/assets/banners/cloud-build-and-deploy-capacitor-apps.69628c3f.png) ](https://cloud.capawesome.io/) ## Use Cases[ΒΆ](#use-cases "Permanent link") The GenAI Rewriting plugin is typically used to reword short messages in different tones and styles on-device using Gemini Nano, for example: * **Tone adjustments**: Rewrite a message to sound more friendly or more professional before sending it. * **Length adjustments**: Shorten or elaborate a draft to fit the situation. * **Expressive messaging**: Add emojis or rephrase text to give it a fresh look. ## Requirements[ΒΆ](#requirements "Permanent link") This plugin uses [Gemini Nano](https://developers.google.com/ml-kit/genai), which runs entirely on-device. It is only available on Android and has the following device requirements: * The device must support Gemini Nano (see [supported devices](https://developers.google.com/ml-kit/genai#supported%5Fdevices)). * The device must run Android API level 26 or higher. * The device must not have an unlocked bootloader. Use the `checkFeatureStatus(...)` method to check whether the feature is available on the device. ## Compatibility[ΒΆ](#compatibility "Permanent link") | Plugin Version | Capacitor Version | Status | | -------------- | ----------------- | -------------- | | 8.x.x | \>=8.x.x | Active support | ## Installation[ΒΆ](#installation "Permanent link") You can use our **AI-Assisted Setup** to install the plugin. Add the [Capawesome Skills](https://github.com/capawesome-team/skills) to your AI tool using the following command: `[](#%5F%5Fcodelineno-0-1)npx skills add capawesome-team/skills --skill capacitor-plugins ` Then use the following prompt: `` [](#%5F%5Fcodelineno-1-1)Use the `capacitor-plugins` skill from `capawesome-team/skills` to install the `@capacitor-mlkit/genai-rewriting` plugin in my project. `` If you prefer **Manual Setup**, install the plugin by running the following commands and follow the platform-specific instructions below: `[](#%5F%5Fcodelineno-2-1)npm install @capacitor-mlkit/genai-rewriting [](#%5F%5Fcodelineno-2-2)npx cap sync ` ### Android[ΒΆ](#android "Permanent link") #### API level[ΒΆ](#api-level "Permanent link") This plugin requires a minimum API level of 26\. Make sure to set the `minSdkVersion` in your `variables.gradle` file to at least `26`. #### Variables[ΒΆ](#variables "Permanent link") This plugin will use the following project variables (defined in your app’s `variables.gradle` file): * `$mlkitGenaiRewritingVersion` version of `com.google.mlkit:genai-rewriting` (default: `1.0.0-beta1`) ## Usage[ΒΆ](#usage "Permanent link") The following example shows how to check the feature status, download the feature and rewrite a text. ### Check the feature status[ΒΆ](#check-the-feature-status "Permanent link") Before using the rewriting feature, check whether it is available on the device. The feature availability depends on the configured output type and language: `[](#%5F%5Fcodelineno-3-1)import { [](#%5F%5Fcodelineno-3-2) FeatureStatus, [](#%5F%5Fcodelineno-3-3) GenAiRewriting, [](#%5F%5Fcodelineno-3-4) Language, [](#%5F%5Fcodelineno-3-5) OutputType, [](#%5F%5Fcodelineno-3-6)} from '@capacitor-mlkit/genai-rewriting'; [](#%5F%5Fcodelineno-3-7) [](#%5F%5Fcodelineno-3-8)const checkFeatureStatus = async () => { [](#%5F%5Fcodelineno-3-9) const { featureStatus } = await GenAiRewriting.checkFeatureStatus({ [](#%5F%5Fcodelineno-3-10) language: Language.English, [](#%5F%5Fcodelineno-3-11) outputType: OutputType.Elaborate, [](#%5F%5Fcodelineno-3-12) }); [](#%5F%5Fcodelineno-3-13) return featureStatus === FeatureStatus.Available; [](#%5F%5Fcodelineno-3-14)}; ` ### Download the feature[ΒΆ](#download-the-feature "Permanent link") If the feature status is `DOWNLOADABLE`, download the feature before using it. Add a listener for the `downloadProgress` event to get notified about the download progress: `[](#%5F%5Fcodelineno-4-1)import { GenAiRewriting, Language, OutputType } from '@capacitor-mlkit/genai-rewriting'; [](#%5F%5Fcodelineno-4-2) [](#%5F%5Fcodelineno-4-3)const downloadFeature = async () => { [](#%5F%5Fcodelineno-4-4) await GenAiRewriting.addListener('downloadProgress', event => { [](#%5F%5Fcodelineno-4-5) console.log('Total bytes downloaded:', event.totalBytesDownloaded); [](#%5F%5Fcodelineno-4-6) }); [](#%5F%5Fcodelineno-4-7) await GenAiRewriting.downloadFeature({ [](#%5F%5Fcodelineno-4-8) language: Language.English, [](#%5F%5Fcodelineno-4-9) outputType: OutputType.Elaborate, [](#%5F%5Fcodelineno-4-10) }); [](#%5F%5Fcodelineno-4-11)}; ` ### Rewrite a text[ΒΆ](#rewrite-a-text "Permanent link") Pass the text to `rewrite(...)` to generate the rewritten suggestions. Add a listener for the `inferenceProgress` event to receive partial results as they are generated: `[](#%5F%5Fcodelineno-5-1)import { GenAiRewriting, Language, OutputType } from '@capacitor-mlkit/genai-rewriting'; [](#%5F%5Fcodelineno-5-2) [](#%5F%5Fcodelineno-5-3)const rewrite = async () => { [](#%5F%5Fcodelineno-5-4) await GenAiRewriting.addListener('inferenceProgress', event => { [](#%5F%5Fcodelineno-5-5) console.log('Partial result:', event.text); [](#%5F%5Fcodelineno-5-6) }); [](#%5F%5Fcodelineno-5-7) const { results } = await GenAiRewriting.rewrite({ [](#%5F%5Fcodelineno-5-8) text: 'Capacitor is an open source native runtime for building Web Native apps.', [](#%5F%5Fcodelineno-5-9) language: Language.English, [](#%5F%5Fcodelineno-5-10) outputType: OutputType.Elaborate, [](#%5F%5Fcodelineno-5-11) }); [](#%5F%5Fcodelineno-5-12) return results; [](#%5F%5Fcodelineno-5-13)}; ` ## API[ΒΆ](#api "Permanent link") * [checkFeatureStatus(...)](#checkfeaturestatus) * [downloadFeature(...)](#downloadfeature) * [rewrite(...)](#rewrite) * [addListener('downloadProgress', ...)](#addlistenerdownloadprogress-) * [addListener('inferenceProgress', ...)](#addlistenerinferenceprogress-) * [removeAllListeners()](#removealllisteners) * [Interfaces](#interfaces) * [Enums](#enums) ### checkFeatureStatus(...)[ΒΆ](#checkfeaturestatus "Permanent link") `[](#%5F%5Fcodelineno-6-1)checkFeatureStatus(options?: FeatureOptions | undefined) => Promise ` Check the current availability status of the rewriting feature. If the status is `DOWNLOADABLE`, you can download the feature using `downloadFeature(...)`. Only available on Android. | Param | Type | | ----------- | --------------------------------- | | **options** | [FeatureOptions](#featureoptions) | **Returns:** `Promise<[CheckFeatureStatusResult](#checkfeaturestatusresult)>` **Since:** 8.2.0 --- ### downloadFeature(...)[ΒΆ](#downloadfeature "Permanent link") `[](#%5F%5Fcodelineno-7-1)downloadFeature(options?: FeatureOptions | undefined) => Promise ` Download the rewriting feature. The `downloadProgress` event listener will notify you about the download progress. The returned promise resolves when the download is complete or the feature is already available. Only available on Android. | Param | Type | | ----------- | --------------------------------- | | **options** | [FeatureOptions](#featureoptions) | **Since:** 8.2.0 --- ### rewrite(...)[ΒΆ](#rewrite "Permanent link") `[](#%5F%5Fcodelineno-8-1)rewrite(options: RewriteOptions) => Promise ` Rewrite the given text in the configured style. The `inferenceProgress` event listener will notify you about partial results as they are generated. The returned promise resolves with the full result. Only available on Android. | Param | Type | | ----------- | --------------------------------- | | **options** | [RewriteOptions](#rewriteoptions) | **Returns:** `Promise<[RewriteResult](#rewriteresult)>` **Since:** 8.2.0 --- ### addListener('downloadProgress', ...)[ΒΆ](#addlistenerdownloadprogress "Permanent link") `[](#%5F%5Fcodelineno-9-1)addListener(eventName: 'downloadProgress', listenerFunc: (event: DownloadProgressEvent) => void) => Promise ` Called while the rewriting feature is being downloaded. Only available on Android. | Param | Type | | ---------------- | ---------------------------------------------------------------- | | **eventName** | 'downloadProgress' | | **listenerFunc** | (event: [DownloadProgressEvent](#downloadprogressevent)) => void | **Returns:** `Promise<[PluginListenerHandle](#pluginlistenerhandle)>` **Since:** 8.2.0 --- ### addListener('inferenceProgress', ...)[ΒΆ](#addlistenerinferenceprogress "Permanent link") `[](#%5F%5Fcodelineno-10-1)addListener(eventName: 'inferenceProgress', listenerFunc: (event: InferenceProgressEvent) => void) => Promise ` Called when a new partial result is available during inference. Only available on Android. | Param | Type | | ---------------- | ------------------------------------------------------------------ | | **eventName** | 'inferenceProgress' | | **listenerFunc** | (event: [InferenceProgressEvent](#inferenceprogressevent)) => void | **Returns:** `Promise<[PluginListenerHandle](#pluginlistenerhandle)>` **Since:** 8.2.0 --- ### removeAllListeners()[ΒΆ](#removealllisteners "Permanent link") `[](#%5F%5Fcodelineno-11-1)removeAllListeners() => Promise ` Remove all listeners for this plugin. **Since:** 8.2.0 --- ### Interfaces[ΒΆ](#interfaces "Permanent link") #### CheckFeatureStatusResult[ΒΆ](#checkfeaturestatusresult "Permanent link") | Prop | Type | Description | Since | | ----------------- | ------------------------------- | --------------------------------------------------------- | ----- | | **featureStatus** | [FeatureStatus](#featurestatus) | The current availability status of the rewriting feature. | 8.2.0 | #### FeatureOptions[ΒΆ](#featureoptions "Permanent link") The feature availability depends on the configured output type and language. Therefore, `checkFeatureStatus(...)` and `downloadFeature(...)` take the same base options as `rewrite(...)`. | Prop | Type | Description | Default | Since | | -------------- | ------------------------- | ------------------------------------------------------ | -------------------- | ----- | | **language** | [Language](#language) | The language of the input text. | Language.English | 8.2.0 | | **outputType** | [OutputType](#outputtype) | The style in which the input text should be rewritten. | OutputType.Elaborate | 8.2.0 | #### RewriteResult[ΒΆ](#rewriteresult "Permanent link") | Prop | Type | Description | Since | | ----------- | ---------- | ------------------------------------------------------------------------- | ----- | | **results** | string\[\] | The rewritten text suggestions, sorted in descending order of confidence. | 8.2.0 | #### RewriteOptions[ΒΆ](#rewriteoptions "Permanent link") | Prop | Type | Description | Since | | -------- | ------ | -------------------------------------------------------- | ----- | | **text** | string | The text to rewrite. The input must be under 256 tokens. | 8.2.0 | #### PluginListenerHandle[ΒΆ](#pluginlistenerhandle "Permanent link") | Prop | Type | | ---------- | ------------------- | | **remove** | () => Promise | #### DownloadProgressEvent[ΒΆ](#downloadprogressevent "Permanent link") | Prop | Type | Description | Since | | ------------------------ | ------ | -------------------------------------------- | ----- | | **totalBytesDownloaded** | number | The total number of bytes downloaded so far. | 8.2.0 | #### InferenceProgressEvent[ΒΆ](#inferenceprogressevent "Permanent link") | Prop | Type | Description | Since | | -------- | ------ | ----------------------------------- | ----- | | **text** | string | The new text of the partial result. | 8.2.0 | ### Enums[ΒΆ](#enums "Permanent link") #### FeatureStatus[ΒΆ](#featurestatus "Permanent link") | Members | Value | Description | Since | | ---------------- | -------------- | --------------------------------------------------------- | ----- | | **Available** | 'AVAILABLE' | The feature is available to use. | 8.2.0 | | **Downloadable** | 'DOWNLOADABLE' | The feature can be downloaded using downloadFeature(...). | 8.2.0 | | **Downloading** | 'DOWNLOADING' | The feature is currently being downloaded. | 8.2.0 | | **Unavailable** | 'UNAVAILABLE' | The feature is not available on this device. | 8.2.0 | #### Language[ΒΆ](#language "Permanent link") | Members | Value | Since | | ------------ | ---------- | ----- | | **English** | 'ENGLISH' | 8.2.0 | | **French** | 'FRENCH' | 8.2.0 | | **German** | 'GERMAN' | 8.2.0 | | **Italian** | 'ITALIAN' | 8.2.0 | | **Japanese** | 'JAPANESE' | 8.2.0 | | **Korean** | 'KOREAN' | 8.2.0 | | **Spanish** | 'SPANISH' | 8.2.0 | #### OutputType[ΒΆ](#outputtype "Permanent link") | Members | Value | Description | Since | | ---------------- | -------------- | ---------------------------------------------- | ----- | | **Elaborate** | 'ELABORATE' | Elaborate the input text. | 8.2.0 | | **Emojify** | 'EMOJIFY' | Insert appropriate emojis into the input text. | 8.2.0 | | **Shorten** | 'SHORTEN' | Shorten the input text. | 8.2.0 | | **Friendly** | 'FRIENDLY' | Make the input text more friendly. | 8.2.0 | | **Professional** | 'PROFESSIONAL' | Make the input text more professional. | 8.2.0 | | **Rephrase** | 'REPHRASE' | Rephrase the input text. | 8.2.0 | ## FAQ[ΒΆ](#faq "Permanent link") ### What are the requirements to use this plugin?[ΒΆ](#what-are-the-requirements-to-use-this-plugin "Permanent link") The rewriting is performed on-device by Gemini Nano. This requires a device that supports Gemini Nano, Android API level 26 or higher and a locked bootloader (see [Requirements](#requirements)). Use the `checkFeatureStatus(...)` method to check whether the feature is available on the device. ### Why is this plugin only available on Android?[ΒΆ](#why-is-this-plugin-only-available-on-android "Permanent link") The ML Kit GenAI APIs are based on Gemini Nano and AICore, which are currently only available on Android. On iOS and Web, all methods reject with an appropriate error. ### How large can the input text be?[ΒΆ](#how-large-can-the-input-text-be "Permanent link") The input must be under 256 tokens. ### Why does `rewrite(...)` return multiple results?[ΒΆ](#why-does-rewrite-return-multiple-results "Permanent link") The model may return more than one suggestion. The suggestions are sorted in descending order of confidence, so the first result is the most confident one. ### How do I get the rewritten text as a stream?[ΒΆ](#how-do-i-get-the-rewritten-text-as-a-stream "Permanent link") Add a listener for the `inferenceProgress` event before calling `rewrite(...)`. The listener is called with each partial result as it is generated. The promise returned by `rewrite(...)` resolves with the full result. ### Can I use this plugin with Ionic, React, Vue or Angular?[ΒΆ](#can-i-use-this-plugin-with-ionic-react-vue-or-angular "Permanent link") Yes, the plugin is framework-agnostic. It works in any Capacitor app regardless of the web framework, including Ionic with Angular, React, or Vue, as well as plain JavaScript projects. ## Related Plugins[ΒΆ](#related-plugins "Permanent link") * [Translation](https://capawesome.io/docs/sdks/capacitor/mlkit/translation/): Unofficial Capacitor plugin for ML Kit Translation. * [Smart Reply](https://capawesome.io/docs/sdks/capacitor/mlkit/smart-reply/): Unofficial Capacitor plugin for ML Kit Smart Reply. ## Terms & Privacy[ΒΆ](#terms-privacy "Permanent link") This plugin uses the [Google ML Kit](https://developers.google.com/ml-kit): * [Terms & Privacy](https://developers.google.com/ml-kit/terms) * [Android Data Disclosure](https://developers.google.com/ml-kit/android-data-disclosure) * [iOS Data Disclosure](https://developers.google.com/ml-kit/ios-data-disclosure) ## Newsletter[ΒΆ](#newsletter "Permanent link") Stay up to date with the latest news and updates about the Capawesome, Capacitor, and Ionic ecosystem by subscribing to our [Capawesome Newsletter](https://cloud.capawesome.io/newsletter/). ## Changelog[ΒΆ](#changelog "Permanent link") See [CHANGELOG.md](https://github.com/capawesome-team/capacitor-mlkit/blob/main/packages/genai-rewriting/CHANGELOG.md). ## License[ΒΆ](#license "Permanent link") See [LICENSE](https://github.com/capawesome-team/capacitor-mlkit/blob/main/packages/genai-rewriting/LICENSE). --- 1. This project is not affiliated with, endorsed by, sponsored by, or approved by Google LLC or any of their affiliates or subsidiaries. [↩](#fnref:1 "Jump back to footnote 1 in the text") July 10, 2026 Back to top ```json {"@context": "https://schema.org", "@graph": [{"@type": "TechArticle", "@id": "https://capawesome.io/docs/sdks/capacitor/mlkit/genai-rewriting/#article", "headline": "Capacitor ML Kit GenAI Rewriting Plugin", "name": "Capacitor ML Kit GenAI Rewriting Plugin", "description": "Unofficial Capacitor plugin for the Google ML Kit GenAI Rewriting SDK to reword text in different tones and styles with Gemini Nano on Android.", "inLanguage": "en", "url": "https://capawesome.io/docs/sdks/capacitor/mlkit/genai-rewriting/", "mainEntityOfPage": "https://capawesome.io/docs/sdks/capacitor/mlkit/genai-rewriting/", "author": {"@type": "Organization", "name": "Capawesome", "url": "https://capawesome.io", "logo": {"@type": "ImageObject", "url": "https://capawesome.io/assets/images/logo.svg"}}, "publisher": {"@type": "Organization", "name": "Capawesome", "url": "https://capawesome.io", "logo": {"@type": "ImageObject", "url": "https://capawesome.io/assets/images/logo.svg"}}, "about": {"@id": "https://capawesome.io/docs/sdks/capacitor/mlkit/genai-rewriting/#software"}}, {"@type": "SoftwareSourceCode", "@id": "https://capawesome.io/docs/sdks/capacitor/mlkit/genai-rewriting/#software", "name": "Capacitor ML Kit GenAI Rewriting Plugin", "description": "Unofficial Capacitor plugin for the Google ML Kit GenAI Rewriting SDK to reword text in different tones and styles with Gemini Nano on Android.", "url": "https://capawesome.io/docs/sdks/capacitor/mlkit/genai-rewriting/", "programmingLanguage": "TypeScript", "runtimePlatform": "Capacitor", "codeRepository": "https://github.com/capawesome-team", "author": {"@type": "Organization", "name": "Capawesome", "url": "https://capawesome.io", "logo": {"@type": "ImageObject", "url": "https://capawesome.io/assets/images/logo.svg"}}, "publisher": {"@type": "Organization", "name": "Capawesome", "url": "https://capawesome.io", "logo": {"@type": "ImageObject", "url": "https://capawesome.io/assets/images/logo.svg"}}}]} {"@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [{"@type": "Question", "name": "What are the requirements to use this plugin?", "acceptedAnswer": {"@type": "Answer", "text": "The rewriting is performed on-device by Gemini Nano. This requires a device that supports Gemini Nano, Android API level 26 or higher and a locked bootloader (see Requirements). Use the checkFeatureStatus(...) method to check whether the feature is available on the device."}}, {"@type": "Question", "name": "Why is this plugin only available on Android?", "acceptedAnswer": {"@type": "Answer", "text": "The ML Kit GenAI APIs are based on Gemini Nano and AICore, which are currently only available on Android. On iOS and Web, all methods reject with an appropriate error."}}, {"@type": "Question", "name": "How large can the input text be?", "acceptedAnswer": {"@type": "Answer", "text": "The input must be under 256 tokens."}}, {"@type": "Question", "name": "Why does rewrite(...) return multiple results?", "acceptedAnswer": {"@type": "Answer", "text": "The model may return more than one suggestion. The suggestions are sorted in descending order of confidence, so the first result is the most confident one."}}, {"@type": "Question", "name": "How do I get the rewritten text as a stream?", "acceptedAnswer": {"@type": "Answer", "text": "Add a listener for the inferenceProgress event before calling rewrite(...). The listener is called with each partial result as it is generated. The promise returned by rewrite(...) resolves with the full result."}}, {"@type": "Question", "name": "Can I use this plugin with Ionic, React, Vue or Angular?", "acceptedAnswer": {"@type": "Answer", "text": "Yes, the plugin is framework-agnostic. It works in any Capacitor app regardless of the web framework, including Ionic with Angular, React, or Vue, as well as plain JavaScript projects."}}], "url": "https://capawesome.io/docs/sdks/capacitor/mlkit/genai-rewriting/"} ```