OpenHands (formerly OpenDevin) is an open-source, model-agnostic platform for building and deploying autonomous software development agents, created by All Hands AI. Rather than simply suggesting code, OpenHands agents plan, write, test, and apply changes across entire codebases—running inside secure, sandboxed Docker or Kubernetes environments with full audit trails and role-based access controls. Developers interact through a web GUI, terminal CLI, or a composable Python/REST SDK, and can orchestrate multi-agent workflows where specialized sub-agents handle independent tasks in parallel, dramatically accelerating large-scale migrations, refactors, and security remediations.
Core capabilities include native integration with GitHub, GitLab, Bitbucket, Slack, and Jira; support for any LLM (Claude, GPT-4, open-weight models, and more); a multi-agent delegation system that decomposes complex jobs across concurrent sandboxes; and a Large Codebase SDK built for navigating and transforming mission-critical legacy systems. Enterprise teams use OpenHands to automate vulnerability scanning and patching with reviewable pull requests, enforce code quality at scale, expand test coverage, migrate legacy codebases (e.g., COBOL to Java), and investigate production incidents—with early adopters reporting 50% reductions in maintenance backlogs and vulnerability resolution times cut from days to minutes.
OpenHands has become one of the fastest-growing open-source developer tools on GitHub, accumulating 75,000+ stars, 7,000+ forks, and over 4 million downloads, with active contributors and users from Apple, Google, Netflix, NVIDIA, Amazon, TikTok, and Mastercard. In November 2025, the company raised an $18.8M Series A led by Madrona with participation from Menlo Ventures, Pillar VC, Obvious Ventures, and Fujitsu Ventures—fueling its mission to establish an open standard for autonomous software development that keeps humans in control while letting AI handle the toil. The Individual cloud tier is free (10 conversations/day); enterprise is custom-priced.