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A powerful REST API for validating emails, IBANs, BIC/SWIFT codes, LEI, ISIN, credit cards, VAT numbers, phone numbers, and 70+ more validators. Free tier available.

Which is more popular?
Based on our record, Evernote seems to be more popular. It has been mentioned 66 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | isvalid.dev | evernote.com |
| Pricing | ||
| Platforms | — | |
| Company | — | Startup from the United States · 250 - 499 employees · 2000 |
| Listed in |
In their own words, as submitted to SaaSHub.


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),...
No description of Evernote yet.
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of Evernote yet.
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10 Reasons why You Should Be Using Evernote in 2019
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing IsValid.dev and Evernote.
IsValid.dev's answer
IsValid offers 70+ validators in a single API — 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 — 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
Share your experience with using IsValid.dev and Evernote. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


We have no reviews of IsValid.dev yet. Be the first one to post
Skitch: Focuses on user-friendly annotation. Highlight text, blur details, or draw arrows without fuss.
The app helps keep everything organized and is really easy to use. I’ve been using it for a while now, and I really like it.
It depends on your needs. Evernote offers advanced note-taking features and organization, suitable for complex tasks. Google Keep is simpler and integrates well with other Google services, making it ideal for basic...
Recommendations tracked on public social media and blogs since March 2021.


Tracking IsValid.dev since Apr 2026.
Obsidian is a multi-platform note-taking and writing app. Simple enough. But aren't there plenty of those around? Yes absolutely, but they each have downsides that I wasn't able to settle with long-term. With Google Cloud it was the... - Source: dev.to / over 1 year ago
Notion, Obsidian, or Evernote: Great for organizing notes with tags, links, and summaries. - Source: dev.to / almost 2 years ago
Evernote‘s mobile website design maintains its brand style and color palette, featuring a clean and simple layout. The site’s centered call-to-action, “Sign up for free,” clearly directs users toward conversion while emphasizing the... - Source: dev.to / about 2 years ago
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