AI · alternatives · 2026
24 alternatives to Opencodex, a free open-source coding agent for VSCode
A free, open-source coding agent inside VS Code. Contribute to matonhp5108/Opencodex development by creating an account on GitHub.
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.
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opencode▲393Your terminal's AI agent, with any model you want
2025 · opencode.ai · its alternatives →
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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 →
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Freebuff▲310Free coding agents to kill Claude, Cursor, Replit, and Devin
Aug 2026 · freebuff.com · its alternatives →
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GoCodeo▲220An AI coding agent extension for VSCode
2025 · marketplace.visualstudio.com · its alternatives →
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Agent that implements a task/issue + runs in the background
2025 · github.blog · its alternatives →
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Search millions of open source repos without leaving the IDE
2022 · marketplace.visualstudio.com · its alternatives →
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Open source cloud & desktop IDE. Contribute to CodeboxIDE/codebox development by creating an account on GitHub.
2014 · github.com · its alternatives →
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GitNexus (Akon Labs)free tier, from $29/mo▲151The open-source kernel for coding agents
Aug 2026 · akonlabs.com · its alternatives →
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Simple to install, powerful command-line based AI agent system for coding. - bhouston/mycoder
2025 · github.com · its alternatives →
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Code▲20Hey HN, Today we're launching Code, a community-driven, open-source coding agent for your terminal. It's a fork of OpenAI's codex with a focus on developer ergonomics and local control. Key features: - Browser integration – attach to your Chrome via CDP or use a built-in headless browser. You can browse pages, run the CLI in a browser session, and even take screenshots from the terminal. - Multi-agent commands – /plan, /solve and /code orchestrate multiple models (ChatGPT, Claude, Gemini) to propose and implement solutions, with consensus or race options. - Diff viewer – see…
2025 · github.com · its alternatives →
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MicroCodex is an ultra-lightweight coding agent that runs in your terminal - paoloanzn/microcodex
Aug 2026 · github.com · its alternatives →
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Hi, we're Kevin, Chris, and Brian, the creators of JACoB (Just Another Coding Bot), an open-source AI coding agent designed to streamline the development process. As veteran developers, we know that while AI isn't perfect, it can be a valuable tool for tasks like code reviews, converting designs to React components, and writing high-quality GitHub issues. We’ve been building JACoB over the past year to assist with our real work, and today we’re open sourcing it under an Apache 2.0 license. Our goal is to create the first fully open-source tool that matches the quality and polish of many…
2024 · github.com · its alternatives →
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Hello! We just released freeact (https://github.com/gradion-ai/freeact), a lightweight agent library that empowers language models to act as autonomous agents through executable code actions. By enabling agents to express their actions directly in code rather than through constrained formats like JSON, freeact provides a flexible and powerful approach to solving complex, open-ended problems that require dynamic solution paths. * Supports dynamic installation and utilization of Python packages at runtime * Agents learn from feedback and store successful code actions as…
2025 · github.com · its alternatives →
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We just open-sourced the internal system we built at Assembled for running coding agents as a team. Coding agents worked well for individual engineers, but the surrounding workflow was a bit of a mess. We generally found that many engineers had different MCP connections and context for their agents, personal automations running that other people couldn’t access, and very little introspection for what a human’s input into the coding agent looked like. So we built an internal system that converted coding agents into shared team infrastructure. The system runs Codex, Claude Code, OpenCode, and…
Jun 2026 · its alternatives →
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ADE▲99Use any coding subscription you already pay for, in one synced app that runs on web, desktop, terminal, and mobile. All your chats stay synced between all ade surfaces. Run agents from your laptop, continue the conversation from your phone at dinner, then later finish it off from another computer by simply using the web client. All subs, all in one place. Fully free and open source!
Jul 2026 · ade-app.dev · its alternatives →
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Hi HN, I'm Hang, cofounder of InsForge (YC P26). InsForge is an open-source Heroku for AI coding agents: a backend platform designed for coding agents to deploy, operate, and debug end-to-end. Open source under Apache 2.0 (https://github.com/InsForge/InsForge). Quick demo here (https://youtu.be/7Bax5qz0IfM). We started InsForge because we just wanted our Claude Code to handle all the backend / infra stuff for us, instead of us jumping between dashboards doing manual config, or copy paste logs and docs back to agents. We first tried creating a folder…
May 2026 · github.com · its alternatives →
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Open-source SWE agent with full machine access
Jul 2026 · supercodeai.vercel.app · its alternatives →
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OB-1▲11Free coding agent. No account, no card, no API key.
Jul 2026 · overbrilliant.com · its alternatives →
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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 →