Oluwatosin Adelaja
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finprim
Financial primitives for TypeScript. Zero dependencies.
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.
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.
For a complete overview of finprim including community comment highlights and product details, visit the product overview.