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Juxx
Spreadsheet diffing that never leaves your Mac
Juxx diffs spreadsheets on your Mac * See every change cell-by-cell in a real grid * Runs locally with nothing uploaded * Handles thousands of rows in milliseconds
Hey Product Hunt 👋
I'm Matt, a data scientist by day. I made Juxx to scratch my own itch. Comparing two versions of a spreadsheet on a Mac was a cognitive slog so I made the tool I wanted. It runs 100% locally (WASM, nothing leaves your machine), diffs 10k+ rows in milliseconds, and renders spreadsheets so I can actually see what changed instead of squinting at raw text.
Juxx started as a browser tool (diff.sandy.ms) and people kept asking for a native app, so here it is. Would love your feedback, especially on file formats and edge cases you'd want supported next.
Happy to answer anything!
About Juxx on Product Hunt
“Spreadsheet diffing that never leaves your Mac”
Juxx was submitted on Product Hunt and earned 6 upvotes and 3 comments, placing #59 on the daily leaderboard. Juxx diffs spreadsheets on your Mac * See every change cell-by-cell in a real grid * Runs locally with nothing uploaded * Handles thousands of rows in milliseconds
On the analytics side, Juxx competes within Spreadsheets, Data & Analytics and Data — topics that collectively have 17.9k followers on Product Hunt. The dashboard above tracks how Juxx performed against the three products that launched closest to it on the same day.
Who hunted Juxx?
Juxx was hunted by Matt Sandy. 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.
For a complete overview of Juxx including community comment highlights and product details, visit the product overview.
Matt Sandy