Line Reverser

The Line Reverser reverses the line order of any text block — placing the last line first and the first line last — equivalent to running the tac command on Unix systems or using array.reverse() on a split-by-newline array. While simple in concept, line reversal is a frequent practical need when working with timestamped data: log files written oldest-first, database export dumps in insertion order, git log output, and CSV exports that list newest records last all benefit from reversal for human review.

Browse all Text tools

How to Use

Paste any multi-line text into the input area and click Reverse Lines — the output immediately shows all lines in the opposite order with the last line moved to the top. The tool preserves blank lines and whitespace within each line exactly, only changing line sequence. For very large text blocks the reversal is instantaneous as it uses an array split-and-reverse approach rather than iterative line-by-line swapping.

Common Use Cases

• •Sysadmins reversing chronologically ascending log files (syslog, auth.log, application logs) to show the most recent events at the top for faster triage during active incident response
• •Developers reversing stack traces that are printed innermost-first to read them from the original call site (outermost) to the error point (innermost) for easier cause-and-effect analysis
• •Data analysts reversing CSV or TSV exports where row order was descending by ID or date to produce ascending order for sequential processing without re-running the export query
• •Version control users reversing git log --oneline output (newest first) to read commit history in chronological oldest-to-newest order for code archaeology and change narrative analysis
• •Puzzle designers and educators reversing ordered lists, numbered sequences, or ranked items to create inverse-order exercises or reveal information in a bottom-up presentation order

Take a break and play free browser games