Browser Extensions That Use Local AI

Karakeep is a bookmark manager for people who collect links, notes, images and PDFs in one place. You can run the open source app on your own server with Docker under the AGPL-3.0 license, or use the managed Karakeep Cloud service. It has a web app, iOS and Android apps, and extensions for Chrome, Firefox and Safari.

Onyx is an AI search and chat platform for teams whose information is spread across workplace apps. It indexes company knowledge so employees can ask questions across sources and get answers grounded in relevant documents. Teams can deploy it in their own cloud or on bare metal, including an air-gapped environment.

Mem0 is a memory layer for developers building AI agents and assistants that need to recall earlier interactions. It retains user, session, and agent context across conversations, so an assistant can remember preferences or a support bot can refer to past tickets. The self-hosted code is open source under Apache 2.0; Mem0 also has a managed service.

Linguist is a free browser translation extension for people who read across languages and want control over where their text goes. Its built-in Bergamot translator processes text on your device without an internet connection. You can also choose an external translation provider or connect a local backend such as Ollama or LibreTranslate.

ChatGPTBox is a free, open-source browser extension for people who want AI help with the pages they read, search results and selected text. It works in Chrome, Edge, Firefox and Safari, with mobile support too. You can connect it to Ollama or a self-hosted model through its custom model mode, or use cloud services such as ChatGPT, Claude, Moonshot and Azure.

Amurex is an AI meeting copilot that runs as a Chrome extension for Google Meet and MS Teams. It's for people who want help following a discussion and recording decisions without handling all the meeting notes themselves. You can self-host its backend and web application alongside the browser extension.

Lumos is a Chrome extension for asking questions about web pages using models running on your own machine. It's for readers working through long discussions, product reviews, news articles or technical documentation who want summaries and answers tied to the material they're reading. Ollama handles inference locally, without a remote AI server.

ollama-ui is a small browser interface for people who run models through Ollama and want a graphical place to chat. You can serve the interface locally and open it in a browser, or use the Chrome extension. It's open source under the MIT license.

LaVague is a Python framework for developers building AI agents that carry out tasks in a web browser. An agent takes a plain-language objective, examines the current page, and generates and executes browser actions across multiple steps. It's open source under the Apache 2.0 license.

NativeMind brings a local AI assistant into Chrome for people who want help with webpages, documents, and writing without sending that content to a cloud model. The browser extension connects to Ollama on your machine, keeping prompts and AI processing on-device. It requires no account and uses the AGPL-3.0 open-source license.

Page Assist brings local AI chat into your browser, with a sidebar for conversations alongside a webpage and a separate tab for a ChatGPT-style interface. It's for people who already run models on their own hardware and want to ask questions about what they're reading without leaving the page.

Meme Search is a free, self-hosted web app for people who want to find memes in their own collection by image content or text. It runs locally through Docker and uses AI descriptions to make images searchable, even when their filenames aren't useful. The code uses the Apache 2.0 license.

Immersive Translate is an AI translation extension and mobile app that keeps original text alongside its translation. It's aimed at students, researchers and people who read foreign-language material for work. The bilingual page layout lets readers compare passages without replacing the source text.

Nanobrowser is an open-source AI agent that automates web tasks inside Chrome or Edge. It's for people who want to delegate repetitive browsing or research while choosing which models handle the work. The extension runs in your browser and is an alternative to OpenAI Operator, with an Apache 2.0 license.

Repomix turns a code repository into a single file that an AI assistant can read. It’s for developers who need to give Claude, ChatGPT, Gemini, or another model enough project context for code review or analysis. You can use its command line on your own machine, pack a repository through its website, or run it as an MCP server, including through Docker. It is open source under the MIT license.

Whispering turns speech into text through a browser interface, a Chrome extension, or a desktop app. It's for people who prefer dictating to typing and want a shortcut to start recording. The app is open source under AGPL-3.0-or-later.

TranslateLocally is an open source machine translation app for Windows, macOS and Linux. It's for people who want to translate text on their own device, including those handling material they don't want to send to a remote translation service. The desktop app has an MIT license and uses Marian and Bergamot translation models.

Linkwarden is a self-hosted bookmark manager for people and teams who want to keep the pages behind their saved links. It archives webpages as HTML, screenshots, and PDFs, so you can revisit the content even if the original site removes it. It's useful for research, shared reference collections, and articles you want to read later.

WebLLM runs language models directly in a user's browser, using WebGPU for GPU acceleration. It's an open-source engine for developers building web-based AI assistants and Chrome extensions that process prompts on the user's device rather than an inference server. The project uses the Apache 2.0 license.

OPUS-CAT runs neural machine translation locally on Windows for professional translators who work in computer-assisted translation (CAT) tools. Its offline engine keeps translation processing on the user's computer, so translators can use machine translation for confidential text without sending it to a cloud translation service.

Vyact is an open source desktop workspace for people who want to use a local LLM with their documents, email and code. It runs on Apple Silicon Macs, Windows and Linux x64 under the AGPL-3.0 license. Intel Macs aren't supported.