Devin alternatives
The closest matches to Devin in agent frameworks, ranked the same way as every listing in the index — by verified specs and design score, never by who paid for placement.
- MastraOpen Source
Native TypeScript with genuinely useful type safety · Integrates cleanly with Next.js
Best for TypeScript teams building agents into an existing app
- Pydantic AI
Structural validation inherited from Pydantic · Fits naturally into an existing Python ML stack
Best for Data scientists and ML engineers
- LangChainOpen Source
Massive community · Endless integrations
- MultiOn
No API required for target sites · Highly versatile
Best for Growth Ops
- SmolAgentsOpen Source
Extremely lightweight · Code generation focus
Want the full comparison instead of a summary? Browse every agent frameworks in the index.