# Introducing: Local Browser AI

DevFeed: [Introducing: Local Browser AI](<https://devfeed.tech/articles/introducing-local-browser-ai-29081.md>)

Original publisher: [Read original article](<https://blog.alexewerlof.com/p/local-browser-ai>)

Author: Alex Ewerlöf

Published: 2025-10-13T07:51:29Z

Content type: article

Language: en

Sources: [Alex Ewerlof Notes](<https://devfeed.tech/sources/alex-ewerlof-notes.md>)

Topics: [browser](<https://devfeed.tech/topics/browser.md>), [Artificial Intelligence](<https://devfeed.tech/topics/ai.md>), [Browser Extension](<https://devfeed.tech/topics/browser-extension.md>), [JavaScript](<https://devfeed.tech/topics/javascript.md>), [On-device AI](<https://devfeed.tech/topics/on-device-ai.md>)

Tags: [ai](<https://devfeed.tech/tags/ai.md>), [browser](<https://devfeed.tech/tags/browser.md>), [extension](<https://devfeed.tech/tags/extension.md>), [interface](<https://devfeed.tech/tags/interface.md>), [javascript](<https://devfeed.tech/tags/javascript.md>), [on-device-ai](<https://devfeed.tech/tags/on-device-ai.md>), [open-source](<https://devfeed.tech/tags/open-source.md>)

## AI overview

This technical post explains how the Prompt API enables local language-model chat in the browser and examines the Local Browser AI extension, which is built with plain JavaScript and native browser APIs. It also describes the extension's permissions, privacy properties, open-source MIT license, and supported platforms.

## Source excerpt

Using the new Prompt API for local chat in the browser