Codex is OpenAI's coding agent for software development across the Codex app, editor, terminal, and cloud tasks. It helps write, review, debug, refactor, and automate code, with ChatGPT plan access for managed surfaces and API-key usage for CLI, SDK, and IDE workflows. The open-source CLI and SDK support local repository work, while cloud features add GitHub review, Slack/Linear integrations, worktrees, skills, MCP, and automations.
Best Amp Alternatives
2 editor-verified alternatives · Amp overview →
source: tools.alternatives · stored order · active records only; review scores are annotations and never change membership or order
Cline is an Apache-2.0 open-source AI coding agent runtime for editor, terminal, and SDK workflows. It reads and edits files, runs commands, uses browsers, plans then acts, and requires explicit approval for each step unless users enable auto-approve. Current Cline sources show 8M+ installs, 63.6k+ GitHub stars, BYOK/provider flexibility, local model support, MCP, plugins, hooks, and Enterprise governance.
Open-source Amp alternatives
Cline — see all open-source developer tools.
Free Amp alternatives
Codex offer a free plan or free tier.
Amp head-to-head
FAQ
What is the best Amp alternative?
Codex tops our editor-verified list of 2 Amp alternatives, scoring 80/100 in our hands-on review.
Are there open-source Amp alternatives?
Yes — Cline are open source.
Are there free Amp alternatives?
Yes — Codex offer a free plan or free tier.