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URLTO GUIDE

Investigate visually identical lines that remain

Combined and hidden characters can make similar-looking lines differ. Preserve the original while investigating.

URLTO editorial · Updated

Duplicate-line removal · series07 / 10

Input and processing example

Compare it yourself · Illustrative example

é (U+00E9)
e + ◌́ (U+0065 U+0301)
화면은 비슷해도 문자열은 다름 / similar appearance, different strings

Steps to verify

  • Keep both affected lines.
  • Compare character and byte counts.
  • Decide normalization according to the original purpose.

How to interpret the result

The tool does not automatically normalize Unicode or compare meaning. Trimming does not remove every invisible difference.

Deciding what to do next

Check normalization requirements for names or identifiers. Do not delete records solely because they look alike.

Feature scope

Keep first-occurrence order while removing matching strings, with trim and empty-line options and case-sensitive comparison, not semantic merging.

Frequently asked questions

Does it remove every invisible character?

No. Processing follows string matching and the selected whitespace options.

Use now Duplicate-line removal