Text and Strings
Reorder the steps to see how each operation changes your list.
Text stays in this browser; it is not uploaded.
CRLF, CR and LF are input breaks; output uses LF. Trailing breaks and split separators preserve empty rows. The empty marker and margin numbers are display aids only.
Up to 20 steps, 50,000 rows and 1,000,000 UTF-16 units at every stage; text parameters up to 1,000 units. Limits reject the entire run.
Enter text or apply an example. Empty input has zero rows.
Text line tools help when copied lists contain repeated items, padded values and unwanted rows. Keep the original on the left while you decide which cleaning operations belong before sorting.
A repeatable sequence matters more than a single cleanup button: numbering before deduplication can preserve entries that would otherwise match. Here the steps remain visible and can move up or down.
With text line tools, trim lines before removing duplicates to compare their cleaned values. Move deduplication above trimming and differently padded originals can survive as equal-looking output rows. Each step reports its input and output count.
Reverse lines or shuffle lines while the input stays intact. A fixed seed repeats the same shuffle, and advancing it requests a different arrangement. Using the result opens a separate replacement preview with an apply button and one undo.
The default steps trim both ends, remove empty rows, then remove duplicate lines while keeping the first occurrence. Delete any step to preserve that part of the source, or add the same operation twice with different parameters.
Use the step controls to put filtering before numbering, or split a joined list before sorting. Automatic mode waits 350 ms after a change. Turn it off to use Run or Ctrl/Cmd+Enter; any calculation change disables export immediately.
The result initially shows 50 rows, with more available in batches; copy and download always include all rows. Example, Clear and Use result require preview and application. Undo restores the previous input, steps, mode and result.
Sort lines by UTF-16 code units or choose English natural comparison for digit groups such as item2 and item10. Reverse changes row order only. Deduplication retains the first original spelling, optionally matching lowercase forms.
Keep or exclude rows containing a literal substring. A dot is a dot, not a regular expression. Head and tail retain a specified count in its existing order; a count of zero produces an empty list.
Add a literal prefix or suffix, or number the current rows with a starting integer, increment and separator. Join entries with a delimiter, or split the current LF text with an exact separator; consecutive separators preserve empty entries.
Text line tools compare complete rows and retain the first occurrence in its original position. A separate trim step can remove edge spaces before that comparison. Move it after deduplication to compare the original padded values instead.
Enable Ignore case on a deduplication or filtering step. Matching uses JavaScript lowercase, while the surviving row keeps its spelling. This does not merge full-width letters with ASCII or normalize composed accents.
The default character-code order places 10 before 2. English natural comparison treats digit groups numerically, which suits filenames such as item2 and item10. It is not a numerical parser for negative values, decimals or locale-specific formatted numbers.
The ceiling is 50,000 logical rows and 1,000,000 UTF-16 units, including every intermediate stage. A short input can exceed the output limit when prefixes or separators expand it. The whole run fails rather than silently cutting off the end.
The pipeline runs in this browser without uploading the input. Copy and download happen only when you choose them. Refreshing the page resets the working input and steps because this tool does not store a recipe.
Did a step behave unexpectedly?
Use text line tools to refine the sequence, check the complete counts and save the list that matches your task.