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

Claude Code
GitHub Copilot
Cursor
OpenClaw
VS Code
Claude for Desktop
opencode
Codex is a VS Code extension that allows any engineer to attach comments, questions or any kind of content to specific lines of code.

Which is more popular?
Based on our record, Mockaroo seems to be a lot more popular than Codex. While we know about 27 links to Mockaroo, we've tracked only 1 mention of Codex.
Website, pricing, platforms and company facts side by side.
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Mockaroo
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| Website | mockaroo.com | usecodex.com |
| Pricing | — | |
| Listed in |
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
More videos
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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 Codex. 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
Our company, Codex, is live on Product Hunt now and we'd love your support via an upvote! - Source: dev.to / about 4 years ago
When comparing Mockaroo and Codex, you can also consider the following products.

GenerateData.com: free, GNU-licensed, random custom data generator for testing software
Compare Generate Data to Mockaroo or Codex:

Transform hours of debugging into seconds with a single command. Experience coding at thought-speed with Claude's AI that understands your entire codebase—no more context switching, just breakthrough results.
Compare Claude Code to Mockaroo or Codex:


Your AI pair programmer. With GitHub Copilot, get suggestions for whole lines or entire functions right inside your editor.
Compare GitHub Copilot to Mockaroo or Codex:


The AI-first Code Editor. Build software faster in an editor designed for pair-programming with AI.
Compare Cursor to Mockaroo or Codex: