Best AI tools for developers in 2026
Coding agents, editors, frameworks and model APIs for software developers.
Claude Code (Coding agent)
Agentic coding tool that runs in the terminal and IDEs, reads a codebase and makes multi-file edits.
Pricing: Included with Claude Pro/Max plans or API usage · Visit Claude Code
Cursor (AI code editor)
AI-first code editor with agent mode, tab completion and background agents.
Pricing: Free Hobby plan; paid Pro and Business plans · Visit Cursor
Codex (Coding agent)
OpenAI's software engineering agent, available as a CLI, IDE extension and cloud agent inside ChatGPT.
Pricing: Included with ChatGPT Plus/Pro/Business plans · Visit Codex
GitHub Copilot (Coding assistant)
AI pair programmer in editors and on GitHub, including a coding agent that works from issues.
Pricing: Free tier; paid Pro, Business and Enterprise plans · Visit GitHub Copilot
Windsurf (AI code editor)
AI-native code editor with the Cascade agent for multi-file edits.
Pricing: Free tier; paid Pro and Teams plans · Visit Windsurf
Cline (Coding agent)
Open-source autonomous coding agent extension for VS Code.
Pricing: Open source; bring your own API key · Visit Cline
LangGraph (Agent framework)
Library for building stateful, long-running agents as graphs, with persistence and human-in-the-loop.
Pricing: Open source; paid LangGraph Platform/LangSmith · Visit LangGraph
OpenRouter (Model API)
One API for many LLM providers, with per-model pricing listed on the site.
Pricing: Pay-as-you-go model credits · Visit OpenRouter
LangSmith (Observability)
Tracing, evaluation and monitoring platform for LLM apps and agents.
Pricing: Free Developer tier; paid Plus and Enterprise · Visit LangSmith