Timecomplexity
verifiedFreemiumtimecomplexity.ai
Paste-your-code tool that instantly estimates Big O time complexity with an AI-written explanation, aimed at students and developers.
What it does
TimeComplexity.ai analyzes a pasted code snippet and returns its Big O time complexity along with reasoning for the estimate. Anonymous users get a limited number of free queries per day, with more available after signing in.
Core features
Automatic Big O complexity analysis from pasted code
Written reasoning explaining the estimate
Query history for signed-in users
Support for common algorithm patterns (sorting, searching, subarrays)
Daily free-query limits with unlimited access on paid plan
Best for
→Students checking algorithm efficiency for coursework
→Developers reviewing code performance before shipping
→Candidates practicing complexity analysis for coding interviews
Pricing
Pro
$5/month
Reviews
Big-picture takes: what it's for and whether it delivers. High-engagement YouTube videos — not sponsored.
Tutorials
Step-by-step: exactly how to get things done with it.