IsValid.dev
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Nextless.js
IsValid is a validation API service for developers who need to quickly verify data formats without building their own validators. It offers 40+ endpoints covering financial identifiers (IBAN, BIC, ISIN, CUSIP), international standards (ISBN, ISSN), technology formats (UUID, JWT, QR codes), regional codes (PESEL, REGON, VAT), and more.
The service works on a freemium model โ 100 free API calls per day, no credit card required. Users manage API keys through a dashboard with usage analytics showing daily call volume and per-endpoint breakdowns.
Divjoy speeds up React development. Choose everything you need in your project (auth, database, payments, accounts system, marketing pages, etc), pick a nice template, then export a high-quality codebase you can keep building on. You can use Divjoy to build everything from simple landing pages to entire SaaS applications.
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IsValid.dev's answer
IsValid offers 70+ validators in a single API โ covering financial identifiers (IBAN, BIC, ISIN, LEI), international standards (ISBN, ISSN), technology formats (UUID, JWT, QR codes), tax numbers (VAT, REGON, PESEL), credit cards, phone numbers, and more. No need to integrate multiple services for different data types.
IsValid.dev's answer
Most validation APIs focus on one category (email or phone). IsValid covers financial, regional, and technical formats all in one place with a consistent REST API. The free tier with 100 calls/day requires no credit card, and integration takes minutes.
IsValid.dev's answer
Developers and software teams building applications that handle user input, financial data, or international identifiers โ particularly in fintech, e-commerce, and SaaS products.
IsValid.dev's answer
IsValid was built out of frustration with piecing together multiple validation libraries and services. The goal was a single, reliable API that handles the full range of data validation needs developers encounter in real-world applications.
IsValid.dev's answer
Next.js, Fastify, PostgreSQL, Docker
Based on our record, Divjoy seems to be more popular. It has been mentiond 29 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Agreed, check https://divjoy.com, has almost everything and helps work on the core product. Source: about 3 years ago
Some boilerplates do offer some choices - usually around the front end, which tends to be a manageable piece to bite off. The two I'm aware of that do this reasonably well are my product SaaS Pegasus (for Python/Django) and DivJoy (for React/JS), though I'm sure there's more. Source: over 3 years ago
I built something I wanted that I knew I would have paid for if it existed (https://divjoy.com). If I was looking for a side hustle now I'd 100% be playing with GPT-3/ChatGPT and building small tools. There's a good chance your first few experiments won't catch on, but that you'll end up being in the right place at the right time, see an opportunity, and already have the code/knowledge to get an MVP out quickly. - Source: Hacker News / over 3 years ago
A few years ago I was frustrated with how difficult it was to setup a solid React.js stack with auth, payments, etc so I built the codebase generator at https://divjoy.com It does around $5-10k in sales a month. Fairly passive. A few hours of support a week. Was full-time on it for the first few years, but decided to join a company recently and keep growing this on the side. - Source: Hacker News / over 3 years ago
Picked a random from the list, https://divjoy.com/ and just to export a stock React Code is like $199. Not sure who they are marketing this for but good luck! Source: over 3 years ago
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