About this tool

DevDeck Text Diff is a premium diffchecker for comparing two text inputs. Split view shows aligned side-by-side differences with blank placeholder rows. Unified view shows a single pane with dual line numbers. Inline view highlights word or character-level changes. Click any changed hunk to activate the merge bar: cherry-pick individual changes left or right. Also includes auto-prettify for JSON, swap panels, copy diff, and copy patch. 100% client-side.