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finprim

Financial primitives for TypeScript. Zero dependencies.

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Hunted byOluwatosin AdelajaOluwatosin Adelaja

Every fintech team writes the same validators from scratch — IBAN checks, card formatters, currency helpers. finprim is the open source version of what your team has already built three times. One zero-dependency TypeScript library: IBAN (80+ countries), card (Luhn + network detection), BIC/SWIFT, sort codes, EU VAT, US routing numbers, loan/EMI calculations, and multi-locale currency formatting. With branded types, Zod schemas, React hooks, and NestJS pipes.

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About finprim on Product Hunt

“Financial primitives for TypeScript. Zero dependencies.”

finprim was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #578 on the daily leaderboard. Every fintech team writes the same validators from scratch — IBAN checks, card formatters, currency helpers. finprim is the open source version of what your team has already built three times. One zero-dependency TypeScript library: IBAN (80+ countries), card (Luhn + network detection), BIC/SWIFT, sort codes, EU VAT, US routing numbers, loan/EMI calculations, and multi-locale currency formatting. With branded types, Zod schemas, React hooks, and NestJS pipes.

Who hunted finprim?

finprim was hunted by Oluwatosin Adelaja. 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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