Directories / Alternatives / Aider

Open Source Alternatives

Open source alternatives to Aider

Open source alternatives to Aider, ranked by GitHub stars and freshness.

9 open-source alternatives in the index, ranked by GitHub stars and freshness.

M MCP Dev low

stippi/code-assistant

Various

An LLM-powered, autonomous coding assistant. Also offers an MCP and ACP mode.

★ 165 updated 5d ago

open-source

Best for: Developers seeking an autonomous coding assistant with flexible integration options

A Agents Coding one click

Claude Code

Anthropic

Anthropic's terminal-native coding agent. Reads your repo, edits files, runs tests, ships PRs.

paid

Best for: Senior engineers who want a real terminal agent, not just autocomplete

A Agents Coding low

Continue

Continue.dev

Open-source AI code assistant for VS Code and JetBrains. Customisable, BYO model, built for enterprise.

freemium

Best for: Teams that need control over models, prompts, and data residency

A Agents Coding one click

Cursor

Anysphere

The AI-first code editor. Tab to autocomplete, Composer to multi-file refactor, Agents for the long-running stuff.

freemium

Best for: Teams who want IDE polish and agent power in one tool

A Agents Autonomous low

Devin

Cognition Labs

The autonomous software engineer. Plan, write, test, and ship in a sandboxed cloud workstation.

paid

Best for: Teams ready to give a junior engineer-equivalent a ticket and walk away

A Agents Coding one click

GitHub Copilot

GitHub / Microsoft

The original AI pair programmer, now with Agent Mode, Workspaces, and multi-model selection.

freemium

Best for: Large orgs already on GitHub Enterprise

A Agents Coding one click

OpenAI Codex (CLI + cloud agent)

OpenAI

OpenAI's coding agent surface: terminal CLI for local work, cloud agent for parallel autonomous tasks.

paid

Best for: Teams on the OpenAI Enterprise side of the fence

A Agents Coding one click

Windsurf

Codeium

Codeium's IDE-with-an-agent. Cascade flow combines deep context with autonomous multi-file work.

freemium

Best for: Engineers who want continuous agent context, not chat-and-snippet

P Apps Productivity low

Kilo

Various

Kilo is the open source AI coding agent for VS Code, JetBrains, CLI, and Cloud. Access 500+ models, bring your own keys at zero markup, and keep code private with local models.

freemium

Best for: Developers who want a private, flexible AI coding agent across editors and CLI