Data Privacy:
Data you submit through this tool is evaluated on our servers for demonstration purposes only.
We do not retain, log, or store any submitted data. All processing occurs in memory and your
data is discarded immediately upon completion of the request.
Fuzzy Match Tester
Enter a list of value pairs to compare against both fuzzy-matching rules side by side:
lev-ratio (Levenshtein Ratio) and jaro-winkler. Both scores range
from 0 (completely different) to 100 (identical); a pair is a match when its
score meets or exceeds that algorithm's threshold. Results include both raw and normalized
comparisons so you can see how normalization affects each algorithm, and compare the two to
help decide which one fits your field.
Levenshtein Ratio: round(100 × (len(A) + len(B) − distance) / (len(A) + len(B))).
Jaro-Winkler is prefix-weighted and transposition-aware — best suited to short personal-name fields.