Count Repeated Lines

Count Repeated Lines lets you report the frequency of each exact line without losing first-seen order. Enter your own values or load the worked example.

Copy or download the computed result
Adjust input text
See the processing method and limits

Method and calculation

Report the frequency of each exact line without losing first-seen order.

Inputs and settings

Count Repeated Lines accepts Input text.

Worked example

Count Repeated Lines example — Input text: "Hello world\nA second line\nHello world". Computed output: [ { "line": "Hello world", "count": 2 }, { "line": "A second line", "count": 1 } ]

Output and limitations

Repeated records are reported alongside their exact frequency. The comparison is case-sensitive and includes whitespace, so a padded record is distinct from an unpadded record. First-seen ordering is preserved to help relate the report back to the original input.

Technical references: JavaScript Unicode normalization

Count Repeated Lines FAQs

How does Count Repeated Lines work?

Count Repeated Lines applies the following rule to your input: Report the frequency of each exact line without losing first-seen order. The worked example on this page uses the same processor as the result button.

What should I check in Count Repeated Lines?

Count Repeated Lines has these boundaries: Input is treated as plain text; it is never executed. Start by checking the input text field against the units or format shown.

Can I try an example in Count Repeated Lines?

Count Repeated Lines provides this sample: [ { "line": "Hello world", "count": 2 }, { "line": "A second line", "count": 1 } ]. Use the sample button to reproduce it, then replace the inputs with your own values.