Remove empty lines, duplicates, comments and trim whitespace from text files.
The result will appear here
Text pasted from logs, exports or lists is often full of blank lines, repeated entries, stray spaces and comment lines. This filter cleans it in one pass: remove empty lines and duplicates, trim spaces, drop lines starting with a prefix (# or //) or shorter than a minimum length — and see how many lines were removed.
Deduplicating email lists, URLs or IDs before an import. Removing blank lines and comments from configuration files. Trimming the spaces left by a copy-paste from a spreadsheet or a PDF. Dropping very short lines (headers, separators) from an export. Preparing a clean list before sorting it with Text Sort. To keep only the lines that contain a word or a pattern, use Text Search.
All filters combine: trim first, then remove empty lines, the prefix filter, the minimum length, then duplicates (the first occurrence is kept, order preserved). Windows (CRLF) and Unix line endings are both handled and kept. The number of lines before and after is shown. Copy the result or download it as a .txt file. Works entirely in your browser — your data never leaves your device.
Paste your text directly or upload a text file from your device.
Toggle the filters you want: empty lines, duplicates, whitespace trim, prefix, min length.
Copy the filtered text to clipboard or download it as a .txt file.
This tool helps you clean up text files by removing unwanted lines and trimming whitespace.
Perfect for cleaning log files, data exports, code comments, and more.
Multiple filters at onceYour text data is processed entirely in your browser. Nothing is sent to any server.
Clean up sensitive data files with complete privacy.
100% browser-side processingEverything you need to know about our text filter tool