Launched January 3, 2023
TimeComplexity.ai
Use AI to analyze your code's runtime complexity
Free9,228 impressions#158 of its week
Use AI to analyze your code's runtime complexity. Returns the answer in Big O notation across all languages (Python, C++, C, Java, Javascript, Go, pseudocode, etc.) and with partial or incomplete code.
TimeComplexity.ai uses AI to analyze code snippets and returns their runtime complexity in Big O notation.
- for
- Developers and students who need quick complexity analysis of code.
- pricing
- freemium
Key features
6 features of TimeComplexity.ai
- Instant Big O analysis — Paste any code snippet and receive immediate runtime complexity with reasoning.
- Multi-language support — Works with Python, C++, C, Java, JavaScript, Go, pseudocode and more.
- No boilerplate required — Analyzes code without needing headers, imports, or a main function.
- Reasoning output — Provides a textual explanation of how the complexity was derived.
- Timestamped results — Each analysis includes the time it was generated.
- Query history (authenticated) — View and delete past queries when signed in.
Use cases
- Check the complexity of a new algorithm implementation
- Validate Big O claims in interview prep code
- Teach students runtime analysis with instant feedback
- Identify performance bottlenecks in existing code snippets
TimeComplexity.ai pricing
- AnonymousFree20 queries per day
- AuthenticatedFree50 queries per day · View past queries · Delete past queries
- Pro$5/month/monthUnlimited queries · View past queries · Delete past queries
TimeComplexity.ai FAQ
How accurate is the analysis?+
Results may be incorrect in subtle ways; use them at your own risk.
Which programming languages are supported?+
All major languages such as Python, C++, C, Java, JavaScript, Go, plus pseudocode.
Do I need to include imports or headers?+
No, the tool works with just the code snippet itself.
What are the query limits for free users?+
Anonymous users get 20 queries per day; authenticated users get 50 queries per day.
How can I get unlimited analyses?+
Subscribe to the Pro plan for $5 per month.
Summarized by DevHunt from timecomplexity.ai · Sep 28, 2026. Details may change; check the official site.
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