Compress a List

Compress duplicate items in your list with the Compress a List Tool. This tool groups identical lines and optionally adds counts, producing a cleaner, more compact summary. Trim whitespace, skip blank lines, and control count visibility. Supports live updates, file import/export, copying, and output feedback.

Paste your input above or import a file below.
No file chosen
Supported file types: .txt, .csv, .tsv, .log, .json, .xml, .md, .ini, .yaml, .yml, .html, .htm, .css
Total items: 0
Options
Trim whitespace from each line
Ignore empty lines
Show item counts

How to Use:

  1. Paste or import your list into the input box.
  2. Use Options to trim, skip blanks, or show counts.
  3. Duplicates are grouped with optional count suffixes.
  4. Use Copy Output or Export to File to save results.
  5. Click Clear All to reset the tool.

What Compress a List Tool Can Do:

  • Collapses repeated lines into unique entries
  • Optionally appends count like item (3)
  • Trims, ignores empty lines
  • Live preview with output counter and animation
  • File import/export and clipboard support

Example:

Input:

apple
apple
banana
banana
banana

Output:

apple (2)
banana (3)

Common Use Cases:

Summarize repeated values, analyze list frequencies, condense logs or tags, and prepare inputs for sorting or display. Perfect for content cleanup, reporting, and batch tasks.

Useful Tools & Suggestions:

If you’re compressing a list, Join List Items helps by flattening everything into a single line perfect for saving space or prepping for exports. And if you need to clean things first, Trim List Items makes sure there’s no extra padding or formatting bloating the output. Together they shrink your data down to the essentials, ready for storage, transmission, or compact display.

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