Generate Data
Faker
DataConstruct
Beeceptor
Fake Data
ExtendsClass JSON Generator
Smock-it
A realistic data generator to test your app

vatlayer API
Quaderno.io
TaxJar
Lookuptax
The VAT API
Avalara
Vatcheckapi.com
Simplify VAT & GST for your digital business.
Which is more popular?
Based on our record, Mockaroo seems to be more popular. It has been mentioned 27 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | mockaroo.com | vatstack.com |
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In their own words, as submitted to SaaSHub.

No description of Mockaroo yet.
Collect the right VAT & GST on every domestic and cross-border sale, and automate EC Sales List or VAT OSS reports. You’re compliant within minutes.
What each product offers, as listed by its team.

Possible disadvantages
Walkthroughs and reviews on video.
Best Free Sample Data Generator - Mockaroo.com
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How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using Mockaroo and VatStack. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

If you give it the rules to generate something, why can't it generate it? That's what something like Mockaroo[0] does. It's just more formal. That's pretty much what LLM training does, extracting patterns from a huge corpus of text. Then... - Source: Hacker News / over 1 year ago
A quick way to test this out is to use a tool like Mockaroo to generate some test data and then have a Glue Crawler analyse the data in S3 and create the required data catalog entries. - Source: dev.to / over 2 years ago
Mockaroo — Mockaroo lets you generate realistic test data in CSV, JSON, SQL, and Excel formats. You can also create mocks for back-end API. - Source: dev.to / over 2 years ago
Tracking VatStack since Mar 2021.
When comparing Mockaroo and VatStack, you can also consider the following products.

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Quaderno for Stripe is the simplest way to bill your customers without programming a single line of code.
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TaxJar simplifies sales tax filing for eCommerce sellers.
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