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Redline diffs two drafts word by word — not line by line — so it catches changes mid-sentence the way prose actually gets edited. Inline or side-by-side view, plus a similarity score. One file, works offline, nothing uploaded.
Hey everyone 👋
I kept getting revised drafts back with "made a few changes" attached, and kept having to eyeball two versions of a paragraph to figure out what those changes actually were. Line-by-line diff tools (the kind built for code) don't help much with prose — most edits happen mid-sentence, not on their own line.
So I built Redline. Paste an original and a revised draft, and it shows you a word-level diff — every addition and deletion highlighted, even mid-sentence — plus a similarity score. Read it as one merged view or side by side.
It's a single HTML file, no account, nothing uploaded — I didn't want a diff tool that needed both my drafts sent to a server to work.
One honest note: it computes a mathematically correct minimal diff, but very occasionally, when a short word like "the" repeats near an edit, it groups the change slightly differently than you'd expect by eye. Still accurate, just not always the most intuitive grouping in that one spot.
Would love feedback, especially on real-world drafts — if something looks off, let me know.
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About Draft Diff & Revision Checker on Product Hunt
“See exactly what changed between two drafts”
Draft Diff & Revision Checker was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #148 on the daily leaderboard. Redline diffs two drafts word by word — not line by line — so it catches changes mid-sentence the way prose actually gets edited. Inline or side-by-side view, plus a similarity score. One file, works offline, nothing uploaded.
Draft Diff & Revision Checker was featured in Writing (59.3k followers), Notes (8.4k followers) and Text Editors (16.8k followers) on Product Hunt. Together, these topics include over 17.8k products, making this a competitive space to launch in.
Who hunted Draft Diff & Revision Checker?
Draft Diff & Revision Checker was hunted by Sharmin Akter. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Sharmin Akter