Free online line batch processing tool: add prefix/suffix, remove empty lines, line numbers, dedupe, reverse, filter — all in one click.
TL;DR: Free line batch processor supporting prefix/suffix, remove empty lines, line numbers, dedupe, reverse, filter and sort. Process text lines in one click, runs locally.
This tool runs entirely in your browser. Open DevTools → Network panel and search your input — it appears in no request.
FAQ
Completely free, no registration required. Batch process text lines directly in your browser — all operations run locally with no usage limits.
Supports 9 common operations: add prefix, add suffix, remove empty lines, trim whitespace, add line numbers, dedupe, reverse order, filter lines, and sort.
No. All line processing operations run locally in your browser. Your text data is never sent to any server, ensuring data security.
Yes. You can enter keywords for line filtering, choose include or exclude mode, quickly filter out the lines you need, improving text processing efficiency.
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