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

Open NASA
Google Open Source
Open Source @IFTTT
Nike OSS
NASA Image and Video Library
OpenKube
OpenMCT by NASA
253 NASA open source software projects

Which is more popular?
Based on our record, Mockaroo should be more popular than Code NASA. 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 | code.nasa.gov |
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What each product offers, as listed by its team.

Possible disadvantages
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 Code NASA. 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
Just to be clear this is one center’s first open source release. There’s open source from other centers at https://github.com/nasa. - Source: Hacker News / over 1 year ago
NASA has a good set of open source projects available for public use: https://code.nasa.gov/. - Source: Hacker News / about 3 years ago
Yes, this is no-cost but not necessarily open source. NASA open source software can be found at: https://code.nasa.gov/. - Source: Hacker News / about 3 years ago
When comparing Mockaroo and Code NASA, you can also consider the following products.

GenerateData.com: free, GNU-licensed, random custom data generator for testing software
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A collection of IFTTT OSS projects.
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