Short version: if you want Cursor's experience without the subscription, install Cline or Continue in VS Code and bring your own model. If you want an editor rather than an extension, try Zed. If you live in the terminal, OpenCode. Star counts and maintenance status below come from the GitHub API on 18 September 2026, which is how we caught that two widely recommended alternatives are now archived.

Open-source VS Code extensions
**Cline** (about 69,000 stars, Apache-2.0) is an autonomous coding agent inside VS Code that plans, edits files and runs commands with your approval. Works with most model providers and with local models.
**Continue** (about 36,000 stars, Apache-2.0) focuses on chat, autocomplete and custom assistants you configure per team. A strong pick if you want to standardise on your own models.
**Kilo Code** (about 27,000 stars, MIT) is an open-source agent extension that is actively maintained and has absorbed a lot of the users who left Roo Code.
An editor instead of an extension
**Zed** (about 90,000 stars) is a fast, open-source editor written in Rust with AI and agent features built in. It suits developers who want a native editor rather than another VS Code fork.
Terminal-first
**OpenCode** (about 208,000 stars) is an open-source coding agent for the terminal and one of the most-starred developer tools on GitHub this year. Pair it with any editor.
Free hosted tiers, no keys to manage
Google Antigravity has a free Individual plan with basic weekly agent limits. GitHub Copilot Free includes 2,000 completions and 50 chat requests a month. Both are good starting points before you decide what to pay for.
Two to avoid

Roo Code was archived in May 2026 and Void in June 2026. Archived means no updates, including security fixes. Plenty of alternative lists still recommend both.
How to choose
- Decide where you work.
- Inside VS Code: Cline, Continue or Kilo Code.
- Want a new editor: Zed.
- Terminal: OpenCode.
- Decide who runs the model.
- Your own API key: any extension above.
- Fully local: Cline or Continue with Ollama.
- No keys at all: Antigravity or Copilot Free.
For the wider field, see our list of the best open-source AI coding agents.