The Ship of Theseus
Track how much of your codebase's original code still survives over time.
Insights
How much foundation remains?
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of current codebase is foundation code
How old is the code?
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Repository birth year
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Earliest code still here
When was the biggest rewrite?
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Biggest rewrite date
Which year's code survives most?
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Year with most surviving code
What's the average code age?
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Average code age
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Ancient Code Fragments
Click the file path below to view on GitHub
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The oldest line ever written in this repo's history, even if deleted long ago.
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The oldest line that is still alive in the codebase today.
Where did this all come from?
Built by Asif Sayyed, a data scientist wondering if the Ship of Theseus paradox applies to codebases, if you replace every line over time, is it still the same repo? This tool tracks how much original code survives as projects evolve.
Data Scientist who also happens to read far too much philosophy