Mass Edit

This web utility helps you efficiently perform tedious, repetitive text editing tasks.

Paste in your text and click Mass Edit. Or try pasting one of our examples.

Lines in your text are grouped into columns by similarity. As you edit a line, your changes are applied to the other lines in the same column in a similar fasion. If you want to edit a line separately from the other lines, click on the link icon on that line to unlink it.

Still not sure how to use this? See our screencast for a demonstration.

  Examples: names, Java, C

Mass Editing is brought to you by the User Interface Design Group and SIMILE Group at MIT CSAIL.