Aider Alternatives
10 alternatives to Aider — free and paid AI coding tools covering similar jobs, with pricing and standout strengths.
Claude Code
Anthropic’s official agentic coding tool that runs in the terminal, IDE, and web.
Cline
Open-source autonomous coding agent for VS Code that plans, edits files, and runs commands with diff approval, using any model you bring or a local runtime.
Codex CLI
OpenAI's open-source terminal coding agent with sandboxed execution and two-layer approval controls.
Continue
An open-source IDE extension for building custom AI coding assistants.
Gemini CLI
Google's open-source terminal AI agent powered by Gemini models, with a 1M-token context window and built-in tools.
Goose
Block's open-source, on-machine AI agent that is MCP-native and model-agnostic, with a CLI and desktop app.
Opencode
The open-source AI coding agent — a terminal TUI from Anomaly with 75+ model providers, LSP-powered context, parallel agents, and shareable sessions.
Serena
An MCP toolkit that gives coding agents IDE-grade powers — symbol-level retrieval and editing via language servers, across 40+ languages.
Spec Kit
GitHub's open-source toolkit for spec-driven development — a specify CLI and /speckit slash commands that walk any coding agent from spec to implementation.
Swe Agent
Open-source autonomous coding agent from Princeton/Stanford that turns an LLM into a software engineer to fix real GitHub issues.