Deterministic CSV and Excel reconciliation. Upload two files, map key columns, and see every match, difference, and missing row in seconds. No AI in the match path — same files always produce the same result. Auditable and reproducible. All processing runs in your browser via Web Workers, so your data never leaves your machine. Exact + Jaro-Winkler fuzzy + numeric tolerance matching. Export to CSV or Excel. Free for 3 comparisons/month, up to 1,000 rows. No signup.
Hey Product Hunt,
Every "AI CSV tool" I tried kept doing one of two things: hallucinating totals or wanting to upload my files. For a bank reconciliation, a hallucinated total isn't a typo — it's a compliance problem.
So I built SheetPair as an explicit counter-positioning: deterministic CSV/Excel reconciliation that runs entirely in your browser. No AI in the match path. Same two files always produce the same result, so when an auditor asks why row 47 matched row 203, you can point at the exact column and the exact rule.
Under the hood:
Pure deterministic TypeScript engine — exact, Jaro-Winkler fuzzy, and numeric tolerance matching.
All processing runs in Web Workers — your data never hits a server.
AI is used around the match (optional column-detection, explanations) but never for the match itself.
Free for 3 comparisons/month (1,000 rows, no signup). Paid: Solo $19/mo (25K rows), Pro $49/mo (200K rows).
If you reconcile spreadsheets — bank recs, AP tie-outs, inventory, intercompany — I'd love to hear what's missing. What would make this genuinely useful in your workflow?
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About SheetPair on Product Hunt
“Deterministic CSV/Excel reconciliation. No AI, no uploads.”
SheetPair was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #38 on the daily leaderboard. Deterministic CSV and Excel reconciliation. Upload two files, map key columns, and see every match, difference, and missing row in seconds. No AI in the match path — same files always produce the same result. Auditable and reproducible. All processing runs in your browser via Web Workers, so your data never leaves your machine. Exact + Jaro-Winkler fuzzy + numeric tolerance matching. Export to CSV or Excel. Free for 3 comparisons/month, up to 1,000 rows. No signup.
SheetPair was featured in Productivity (649.8k followers), SaaS (41.5k followers) and Data & Analytics (5.5k followers) on Product Hunt. Together, these topics include over 169.8k products, making this a competitive space to launch in.
Who hunted SheetPair?
SheetPair was hunted by Teyong Liu. 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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Teyong Liu