Item logo image for OpenTool

OpenTool

Item media 3 (screenshot) for OpenTool
Item media 1 (screenshot) for OpenTool
Item media 2 (screenshot) for OpenTool
Item media 3 (screenshot) for OpenTool
Item media 1 (screenshot) for OpenTool
Item media 1 (screenshot) for OpenTool
Item media 2 (screenshot) for OpenTool
Item media 3 (screenshot) for OpenTool

Overview

Chat with any LLM in your sidebar. Bring your own API key, plus agentic page actions.

OpenTool puts an AI assistant in Chrome's side panel, running on your own API key. Bring your own model. Choose a provider from the built-in list, or point OpenTool at any endpoint that speaks the standard chat-completions protocol — including a model server running locally on your own machine. There is no OpenTool account and no OpenTool server. Your key is stored on your machine and sent only to the provider it belongs to. It can see the page you're on. Ask a question about the tab in front of you and the assistant reads it — the accessibility tree, the text, the console, the network log — instead of guessing. It can act on the page, with your permission. Click, type, fill forms, navigate, switch tabs, take screenshots. Every action that changes a page is gated: you either confirm each one, approve a plan up front, or grant a specific action type on a specific site. Grants are listed and revocable in Settings. Banking and payment origins always ask, and a small set of actions — placing securities trades, entering card or SSN details — is refused outright. It can learn a task by watching once. Press record, do the task, press stop. The assistant reads the recording back and repeats the flow. The text you type is never recorded — only that a field was filled — and password, payment, and one-time-code fields are redacted. Save any page as Markdown. One button turns the page you're reading into a real Markdown file — headings, lists, tables, links and code blocks, converted from the live page rather than summarised by a model. It saves the page's main content and leaves the nav and footer out, and the file says which part it converted. The conversion runs entirely on your machine; nothing is uploaded, and nothing you have typed into the page is read. No server, no analytics, no telemetry. Conversations, keys, and settings live in local Chrome storage. Nothing is sent anywhere until you send a message, and then it goes to the one provider you chose and to nobody else. Full privacy policy: https://thyitachi.github.io/opentool-privacy/

Details

  • Version
    2.11.1
  • Updated
    September 8, 2026
  • Offered by
    Aditya
  • Size
    412KiB
  • Languages
    English (United States)
  • Developer
    Email
    thyadityaa@gmail.com
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

Manage extensions and learn how they're being used in your organization

OpenTool has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.

OpenTool handles the following:

Personally identifiable information
Authentication information
Personal communications
Web history
User activity
Website content

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes

Related

EchoGPT - Multi-AI Chat Sidebar

5.0

Chat with multiple AI models in one secure browser sidebar. Summarize webpages and explain text instantly.

AI Chat: Ollama, Local AI, LLMs | Living Web

5.0

Local AI chat in your browser with Ollama or your own OpenAI, Claude & Gemini keys. Summarize, ask, and automate any page.

tata — Multi AI Chat Side by Side Compare Prompt, Split View Sidebar Boards

5.0

Send one prompt to official AI chat sites. Compare real answers side by side in workbench, board or sidebar split view. No API keys.

Sidecar Sieve — Redact PII Before You Paste into AI

0.0

Catches names, addresses and API keys before you send them to ChatGPT, Claude or Gemini — and says when it can't.

Shortcut Chat: AI Browser Assistant to Summarize Web Pages & Ask Questions

5.0

AI chat assistant / agent. Summarize web pages and ask questions from the browser sidebar. With custom shortcuts for common prompts.

Sephir — Browser-native AI agent

0.0

A real AI agent in every browser tab. Reads, clicks, fills, compares — powered by your ChatGPT Plus or your own API keys.

Browy

5.0

The browser agent that runs on the AI subscription you already pay for. No second bill.

Dokobot

4.6

Free, unlimited browsing tool for AI agents. Read any page through your real browser. Optimized for LLM input.

AI Assistant, Local & On-Device — NanoChat

5.0

Free local on-device AI assistant in your Chrome sidebar: chat with any page, summarize, rewrite, translate and automate tasks.

Secret Sanitizer – Paste Safely into AI Chats

5.0

Masks API keys, passwords and tokens before they reach AI chats. Runs locally. Nothing leaves your browser.

Summate: AI Page Summarizer

0.0

Instant AI summaries of any page. Free on-device AI — no account or API key. Works offline; use your own key for top models.

Browser Control

5.0

Chat with Codex and use supervised browser actions beside the current page.

EchoGPT - Multi-AI Chat Sidebar

5.0

Chat with multiple AI models in one secure browser sidebar. Summarize webpages and explain text instantly.

AI Chat: Ollama, Local AI, LLMs | Living Web

5.0

Local AI chat in your browser with Ollama or your own OpenAI, Claude & Gemini keys. Summarize, ask, and automate any page.

tata — Multi AI Chat Side by Side Compare Prompt, Split View Sidebar Boards

5.0

Send one prompt to official AI chat sites. Compare real answers side by side in workbench, board or sidebar split view. No API keys.

Sidecar Sieve — Redact PII Before You Paste into AI

0.0

Catches names, addresses and API keys before you send them to ChatGPT, Claude or Gemini — and says when it can't.

Shortcut Chat: AI Browser Assistant to Summarize Web Pages & Ask Questions

5.0

AI chat assistant / agent. Summarize web pages and ask questions from the browser sidebar. With custom shortcuts for common prompts.

Sephir — Browser-native AI agent

0.0

A real AI agent in every browser tab. Reads, clicks, fills, compares — powered by your ChatGPT Plus or your own API keys.

Browy

5.0

The browser agent that runs on the AI subscription you already pay for. No second bill.

Dokobot

4.6

Free, unlimited browsing tool for AI agents. Read any page through your real browser. Optimized for LLM input.

Google apps