📃 Text Diff

The page always promised a side-by-side comparison, but the result was one long inline stream — and worse, two texts that differed only by a double space were declared "identical", because Words mode ignores spacing. Now the two texts are lined up row by row, each changed line facing the line it became, with the changed words marked inside it; long stretches that didn't change fold away. If the only difference is spaces, tabs or line breaks, the page says so and shows where, instead of calling them identical. In Lines mode a changed last line no longer sticks to its replacement, and a deleted blank line actually shows. The numbers now say what they count (characters, words or lines), and you can open a text file straight into either side. Inline view is one click away if you prefer it.

I pasted two long, quite different documents in here, switched to Characters, and the whole tab locked up — every keystroke after that took seconds, because the comparison ran in the page itself and started over each time you typed. It now runs in the background: the page stays responsive however much you paste, a long comparison waits until you stop typing, and if two texts are so different that a character-by-character comparison would take forever, it says so and suggests Lines instead of hanging. Smaller things: two identical texts now get a plain "identical" instead of a page of unmarked text, a file saved on Windows no longer differs from the same text typed in on every single line, the boxes stack on a phone instead of squeezing side by side, and the selected mode button is actually readable.