An AI browser that runs on a local LLM

What a local-LLM AI browser is

LLM Browser is a full desktop browser, with tabs, an address bar, bookmarks, history, and settings, plus a built-in AI assistant in a docked bridge panel. An AI browser with a local LLM simply means the model powering that assistant runs on your own computer instead of a cloud API. The assistant still navigates, clicks, reads pages, and fills forms; it just does it with a model you host yourself.

Three ways to keep the AI on your machine

LLM Browser gives you more than one route to a private setup, all in the same Settings → LLM Connection panel:

• Local Server (Ollama or LM Studio). Point the browser at a local endpoint such as Ollama or LM Studio. The model runs on your hardware and a green Connected banner confirms it before you start.
• Local AI (GGUF model file). Load a downloaded GGUF model file directly and run the assistant fully on-device. You choose the runtime, the model path, the served model, and the context size, with no separate server to manage.
• CLI Pipe and Terminal. Power users can route prompts through their own command-line tool or a terminal command and capture the reply, for complete control over the local stack.

Why local matters

Running the model locally changes the privacy picture entirely:

• Private by default. When the model runs on your machine, your prompts and the page content the assistant reads do not have to leave your computer.
• No API key, no per-token bill. A local model means no provider account and no metered cost for everyday use.
• Works offline. With the built-in Local AI GGUF option the assistant can run without a connection to any cloud model.
• You stay in control. You pick the exact model, its size, and how hard it is allowed to work.

Tuning a small local model to feel fast

Local models are often smaller than the big cloud ones, so the controls matter. Every connection in LLM Browser has its own reasoning level, system prompt, and step limit. Keep the reasoning level modest and the step limit tight, and a small local model stays quick and focused on short page tasks. Raise them when you want it to take on a longer, multi-step chore. You can switch between local and cloud at any time from the same panel.

Setting up a local connection

Getting a local model wired up takes a couple of minutes. Install LLM Browser like any desktop browser, then open Settings → LLM Connection. For Ollama or LM Studio, choose the Local Server tab and point the browser at the local endpoint that tool is already serving, then press Test and wait for the green Connected banner. For a downloaded model, choose the Local AI tab, set the runtime, point it at your GGUF model file, name the served model, and set a context size that fits your machine. Once connected, type a request into the bridge panel at the bottom of the window and the assistant goes to work on the page.

What it can still do on a local model

Running locally does not strip the assistant back to plain chat. With a local model connected, it can still:

• Navigate and act on the live page, clicking links and buttons.
• Fill and submit forms, which pairs well with keeping personal details on your own machine.
• Read and summarise what is on screen so its answers stay grounded in the real page.
• Scroll and switch tabs as a multi-step task needs.

The trade-off is simply the model: a small local model is quick but less capable than a large cloud one, which is exactly why the per-connection reasoning level, system prompt, and step limit matter.

Where to go next

A local LLM is just one of the connection types in the wider browser with a built-in AI assistant. If you want machine-to-machine automation rather than the in-window chat, you can also control the browser with an LLM over its API, and either way the assistant shines as an AI browser that fills forms. To see how local-LLM browsers compare to cloud-assistant browsers and extensions, read our AI browser comparison for 2026.