Calculate Levenshtein Distance

Compare and analyze strings instantly with the Calculate Levenshtein Distance. This browser-based utility shows how many edits insertions, deletions, or substitutions are needed to change one string into another. It also gives you similarity percentages and a breakdown of transformation steps.

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Total characters: 0
Options
Case sensitive
Show operations
Show similarity %
Maximize output

How to Use:

Enter or paste two pieces of text into the input boxes. You can also import files using the Choose File buttons under each box plain-text formats like .txt, .json, or .csv are supported. The tool calculates the Levenshtein distance instantly as you type or import.

Below the output box, you’ll see the total number of characters in the results. Use the Copy Output or Export to File buttons to save your analysis. You can tweak how the calculation behaves in the Options section choose whether to treat uppercase and lowercase as different, display the step-by-step operations, or show a normalized similarity percentage.

What the Calculate Levenshtein Distance Tool Does:

The Calculate Levenshtein Distance Tool computes the number of single-character edits (insertions, deletions, substitutions) needed to change one string into another. It supports live updates, similarity percentage, case sensitivity, and an optional breakdown of the transformation steps. No data is uploaded or stored everything runs in your browser.

Example:

Input A:

kitten

Input B:

sitting

Options:

  • Case sensitive: off
  • Show operations: on
  • Show similarity %: on

Output:

Levenshtein distance: 3
Similarity: 57.14%
Substitute 'k' → 's'
Substitute 'e' → 'i'
Insert 'g'

Common Use Cases:

The Calculate Levenshtein Distance Tool is perfect for tasks like fuzzy matching, typo detection, comparing strings during validation, and text similarity scoring. Whether you’re building search tools, cleaning up data, or analyzing content differences, this tool gives you fast, clear insight into how two texts differ.

Useful Tools & Suggestions:

If you’re running comparisons, Compare Text is the perfect companion it gives you a side-by-side look at the actual differences. And when you want to highlight those shifts visually, Highlight Patterns in Text helps make changes or similarities stand out clearly in longer content.