GitHub Copilot alternatives

▸ The most popular AI-first IDE with strong agent mode and codebase context.

AI code editor with agents that turn ideas into code.

▸ Cascade agent plus tight Devin integration.

AI editor (now part of Cognition/Devin) for managing local and cloud agents.

▸ Open source, bring-your-own-model, transparent plan/act modes.

Open-source autonomous coding agent for VS Code and the terminal.

▸ 500+ models at provider prices in one open-source agent.

Open-source AI coding agent for VS Code/JetBrains/CLI with access to many models.

▸ Very fast native editor; hosts external agents like Claude Code.

High-performance code editor with built-in AI and agent support.

▸ Best fit if you live in IntelliJ, PyCharm or Rider.

AI in JetBrains IDEs (assistant and Junie agent), plus JetBrains Air for working with any ACP-compatible agent.

▸ Cloud tasks run in parallel and return PRs.

OpenAI's coding agent across CLI, IDE and cloud.

▸ The original autonomous engineer; works from Slack/Linear tickets.

Cognition's autonomous AI software engineer with parallel cloud agents (Windsurf is now part of Devin).

▸ Background agents can take tasks off your plate.

AI code editor with agents that turn ideas into code.

▸ Runs long multi-step tasks autonomously.

Anthropic's agentic coding tool that edits files and runs commands in your terminal/IDE.

▸ Droids run end-to-end from ticket to PR.

Agent-native development with 'Droids' that automate coding, testing and deployment.

▸ Remote agents work in the cloud.

AI coding agents with a deep context engine for large codebases; team platform branded Cosmos.

▸ Most widely adopted AI PR reviewer; free for open source.

Independent AI code review, PR triage and change explanations.

▸ Full-repo context catches cross-file bugs.

AI code reviews that understand your entire codebase.

▸ Focus on test generation and review quality gates.

AI code review and testing platform.

▸ Complements your PR reviewer: it runs the whole app and only reports bugs it can reproduce, each with a failing test.

Runs your product in a sandbox that mirrors production and hunts for reproducible bugs, runtime vulnerabilities and performance issues that a diff-based code review can't see. Each defect comes with a failing test that proves it, ready to hand to a coding agent such as Claude Code to fix. Free trial, no card required; no public price list.

▸ Swaps the PR diff for a dashboard of agent eval scores on every push, so you review where the scores say a human is needed.

Git forge from former GitHub CEO Thomas Dohmke, built for teams where agents write much of the code. Trails replace pull requests: review agents score every push on evals such as security and slop, so you merge when scores are stable and can require human sign-off or CI. Agent sessions and prompts are stored with the commits (open-source MIT CLI for Claude Code, Codex, Cursor and others), Continuous Memory lets agents query that history, and repos can be hosted in US, EU, India or Australia regions. Free to use; only agent usage is billed, from prepaid credit, with a one-time $100 trial credit.