aiBrow

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aiBrow is a browser extension that brings AI to your device. It uses small language models on your machine, making it fast and keeping your data private. With AiBrow, you can complete sentences, improve your writing, rephrase text, or sum up complex information using the latest small LLMs such as Llama 3.2, Phi 3.5, Gemma 2 and Qwen 2.5.

The development API follows the current proposal for the browser Prompt API in development within Chrome. It uses llama.cpp as the inference engine and supports the use of grammar schemas and LoRA Adapters.

The extension works on all Chromium based browsers as well as Firefox.

• Docs
• API Reference
• Playground

How can I try AiBrow?

The easiest way is to download through the Chrome Web Store or Mozilla add-on store. If you want to try the latest version, you can also install the developer version of the extension.

Chrome & Chromium based browsers

(Chrome, Chrome Beta, Edge, Vivaldi, Opera, Wavebox, Arc, Chromium)

1. Install from the Chrome Web Store
2. Follow the setup wizard after installing the extension
3. Try out the playground

Firefox

1. Open the Releases page, download the latest moz.zip, then extract it on disk
2. Open about:debugging#/runtime/this-firefox
3. Click the Load temporary Add-on
4. Install the native helper
5. Try out the playground

How can I use the AiBrow API?

Website

AiBrow embeds itself into all pages using the window.aibrow namespace (also window.ai is polyfilled if it's not available natively in the browser). Check out our developer docs on how to get started!

if (window.aibrow) {
  const { helper } = await window.aibrow.capabilities()
  if (helper) {
    const session = await window.aibrow.languageModel.create()
    const stream = await sess.promptStreaming('Write a poem about AI in the browser')
    for await (const chunk of stream) {
      console.log(chunk)
    }
  } else {
    console.log('Aibrow helper not installed')
  }
} else {
  console.log('Aibrow not installed')
}

Typescript types

Types for window.aibrow can be added to your project by using the npm install --save-dev @aibrow/dom-types package. Then to expose them, place the following either in your global.d.ts or the entry point to your code

import type AI from "@aibrow/dom-types"

declare global {
  interface Window {
    readonly aibrow: typeof AI;
  }
}

Extension

Install the library using npm install @aibrow/extension

import aibrow from '@aibrow/extension'

const { helper, extension } = await window.aibrow.capabilities()
if (extension) {
  if (helper) {
    const session = await window.aibrow.languageModel.create()
    const stream = await sess.promptStreaming('Write a poem about AI in the browser')
    for await (const chunk of stream) {
      console.log(chunk)
    }
  } else {
    console.log('Aibrow helper not installed')
  }
} else {
  console.log('Aibrow not installed')
}

How can I build AiBrow myself?

1. npm run watch or npm start to build the extension
2. Run out/native/boot.cjs --install to install the native manifest hooks
3. Install the extension from out/extension into the browser
4. Logs from the native binary are available in out/native/aibrow.log

Examples

1. AiBrow Playground
2. AiBrow demo extension