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Mock Jutsu
390+ algorithmic mock data types for developers & testers
The Ultimate Algorithmic Mock Data Engine. Stop mocking with random strings. Mock Jutsu generates format-valid synthetic test data — IBAN, TCKN, Luhn, VIN, NHS, SWIFT, MRZ, crypto addresses and 380+ more types. Real checksums, 6 locales (TR/UK/US/DE/FR/RU), CLI + REST API + JMeter Plugin. Zero external dependencies. 5955 tests passed.
I've been a QA Manager for 12 years in fintech & banking. Every project, the same problem: generating realistic test data that actually passes validation — IBAN checksums, national IDs, card numbers, MRZ codes.
Existing tools like Faker give you random strings. They look valid but fail real validation rules. That means broken tests, wasted debugging hours, and production surprises.
So I built Mock Jutsu — an algorithmic mock data engine that generates mathematically correct data. Not random strings, real checksums. 390+ types, 6 locales, zero external dependencies. Works as CLI, REST API, Python package, and JMeter plugin. 5955 tests passed. MIT licensed. Free forever.
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About Mock Jutsu on Product Hunt
“390+ algorithmic mock data types for developers & testers ”
Mock Jutsu was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #144 on the daily leaderboard. The Ultimate Algorithmic Mock Data Engine. Stop mocking with random strings. Mock Jutsu generates format-valid synthetic test data — IBAN, TCKN, Luhn, VIN, NHS, SWIFT, MRZ, crypto addresses and 380+ more types. Real checksums, 6 locales (TR/UK/US/DE/FR/RU), CLI + REST API + JMeter Plugin. Zero external dependencies. 5955 tests passed.
Mock Jutsu was featured in Open Source (68.6k followers), Fintech (47.2k followers), Developer Tools (515.4k followers) and GitHub (41.3k followers) on Product Hunt. Together, these topics include over 130.2k products, making this a competitive space to launch in.
Who hunted Mock Jutsu?
Mock Jutsu was hunted by Altan Sezer Ayan. 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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Altan Sezer Ayan