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FlowSource Code Analysis
MypySource Code AnalysisAnnual estimate10 people, entry price
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Source Code Analysis
Source Code Analysis
Product
Meta's static type checker for JavaScript that adds types to help catch bugs before runtime.
Python static type checker combining gradual typing with Python-native syntax using PEP 484 type hints.
Headquarters
Menlo Park, California
Remote
Company size
N/A (Meta)
N/A (Community)
Free options
Free plan, Free trial
Free plan
Source updated
Nov 2, 2026
Oct 29, 2026
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Security and switching
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Security and migration
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