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Juxx

Spreadsheet diffing that never leaves your Mac

Spreadsheets
Data & Analytics
Data
Visit WebsiteSee on Product HuntApp Store

Hunted byMatt SandyMatt Sandy

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

Top comment

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!

Comment highlights

Does it support Excel files directly, or do you need to export to CSV first?

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

Juxx was featured in Spreadsheets (9.9k followers), Data & Analytics (5.7k followers) and Data (2.4k followers) on Product Hunt. Together, these topics include over 6.3k products, making this a competitive space to launch in.

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.

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