Trim Lines
Trim leading and trailing whitespace from each line locally. Preserves inner spaces and blank lines. Free, browser-based, no upload.
Runs locally in your browser. Your input is not uploaded to DevToolMate servers.
Developer Quick Tips
- Press Ctrl or Cmd + Enter to trim after pasting logs, config files, or CSV fragments.
- Each line is trimmed independently, inner spaces and paragraph structure stay intact.
- Pair with Sort Lines or Remove Duplicate Lines for complete log cleanup workflows.
- CRLF line endings are normalized; trailing newlines are preserved.
- Large inputs hit size limits shown in the UI, split work across smaller chunks.
Frequently asked questions
Does Trim Lines upload my data?
No. Trim Lines runs locally in your browser. Your input is not uploaded to DevToolMate servers for processing.
Is Trim Lines free?
Yes. Trim Lines is free to use with no account required. Processing stays on your device.
Will my input be stored?
Input stays in memory for the current page. Closing the tab clears it. Theme preference is stored locally in your browser and is not tool input.
How is Trim Lines different from a full-text trim?
Trim Lines removes leading and trailing whitespace from each line independently, preserving inner spaces and blank lines. This is ideal for cleaning pasted logs or config files where paragraph structure matters.
Does Trim Lines handle CRLF or Windows line endings?
Yes. Trim Lines normalizes CRLF (\r\n) line endings while trimming each line, and preserves trailing newlines when present in your input.
Will blank lines be removed?
No. Blank lines are preserved so your paragraph structure and formatting remain intact after trimming.
Related tools
- Sort Lines: Order and sort lines alphabetically online with numeric-aware, case-insensitive comparison. Free browser tool, no upload, no account needed.