AI · alternatives · 2026
24 alternatives to SideAgent
Open source AI sidebar with MCP & Skills support.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier.
- 1SO
- 2

- 3
BrowserAgent▲544Browser-based AI agents - unlimited runs, fixed cost
2025 · browser-use.com · its alternatives →
- 4
NeuralSide▲97Fast, focused AI in the browser sidebar
2025 · chromewebstore.google.com · its alternatives →
- 5
Open Browser Use▲112Open-source browser automation for local AI agents
May 2026 · github.com · its alternatives →
- 6

Supercharge productivity in your browser with Gemini AI
2024 · chromewebstore.google.com · its alternatives →
- 7
TwinMind▲509AI sidebar that listens, sees tabs, and helps proactively
2024 · twinmind.com · its alternatives →
- 8
Open Agents▲161OpenAgents - The collaboration OS for AI agents. Contribute to openagents-org/openagents development by creating an account on GitHub.
Apr 2026 · open-agents.dev · its alternatives →
- 9

Power your AI agents with enterprise-ready tools via MCP
2025 · merge.dev · its alternatives →
- 10

Title: Show HN: PageAgent, A GUI agent that lives inside your web app Hi HN, I'm building PageAgent, an open-source (MIT) library that embeds an AI agent directly into your frontend. I built this because I believe there's a massive design space for deploying general agents natively inside the web apps we already use, rather than treating the web merely as a dumb target for isolated bots. Currently, most AI agents operate from external clients or server-side programs, effectively leaving web development out of the AI ecosystem. I'm experimenting with an "inside-out" paradigm instead. By…
Mar 2026 · alibaba.github.io · its alternatives →
- 11

Hey HN, I'm excited to share BrowserBee, a privacy-first AI assistant in your browser that allows you to run and automate tasks using your LLM of choice (currently supports Anthropic, OpenAI, Gemini, and Ollama). Short demo here: https://github.com/user-attachments/assets/209c7042-6d54-4fc... Inspired by projects like Browser Use and Playwright MCP, its main advantage is the browser extension form factor which makes it more convenient for day to day use, especially for less technical users. Its also a bit less cumbersome to use on websites that require you to be…
2025 · github.com · its alternatives →
- 12

Use AI Services Right from Your Browser Sidebar
2025 · chromewebstore.google.com · its alternatives →
- 13

- 14

Open-source MCP bridge for Blender AI workflows
Aug 2026 · github.com · its alternatives →
- 15
Kimi WebBridgefree tier, from $15/mo▲115A bridge connecting AI agents to the live web
May 2026 · kimi.ai · its alternatives →
- 16

Open-source Computer Use MCP for AI agents
May 2026 · github.com · its alternatives →
- 17
AlliHat▲96I think we all have a similar flow and pain with browsers and AI. Copy article, paste in Claude tab, come back to article, back to Claude, in circles we go. Anthropic has a Chrome extension, but my daily driver is Safari. So I made my own extension. It's not a clone as I've never used the Chrome version. One obvious change: the Chrome version I believe uses Chrome "request sidebar" thing. And Safari doesn't have that, so had to inject the sidebar right in the site html itself. There's been some fun things in here like figuring out the sidebar html/css sandboxing. Also there's an agent…
May 2026 · allihat.com · its alternatives →
- 18
OpenBerth▲84Deploy AI-generated apps to your own server with one command. Open source, sandboxed, automatic HTTPS. Built for non-engineers.
Apr 2026 · openberth.io · its alternatives →
- 19

Hey HN. http://peerd.ai is an AI agent harness that lives entirely in your browser as a web extension. You don’t have to install a separate “AI browser”. You don’t have to bolt on or run some external process or manage a clunky mcp integration. It’s just a fully contained web extension, written in no build vanilla JS with minimal non-browser dependencies, using your own provider keys, and Apache 2. This isn’t just a fun hack. While it has largely been a solo side project, I genuinely believe the browser and the web could be the most natural platform for AI agents to operate safely,…
Jun 2026 · github.com · its alternatives →
- 20

Chrome extension allow the user to communicate with the AI
2025 · github.com · its alternatives →
- 21

Create AI powered snippets and invoke them on any input box
2023 · shortkut.ai · its alternatives →
- 22

Hi HN! I’m Tony, co-founder of Inngest. I wanted to share AgentKit, our Typescript multi-agent library we’ve been cooking and testing with some early users in prod for months. Although OpenAI’s Agents SDK has been launched since, we think an Agent framework should offer more deterministic and flexible routing, work with multiple model providers, embrace MCP (for rich tooling), and support the unstoppable and growing community of TypeScript AI developers by enabling a smooth transition to production use cases. This is why we are building AgentKit, and we’re really excited about it for a few…
2025 · github.com · its alternatives →
- 23

Open-source AI browser agent that runs any model you choose
Jul 2026 · opensidekick.app · its alternatives →
- 24
Xeon Agent▲13This chrome extension control your browser with ai
2025 · github.com · its alternatives →
Also compare
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →