MockTurtle.net
Dadroit JSON Viewer
Jayson
ExtendsClass JSON Generator
Mockaroo
Fullstack Vue
DevToys
Create mock and sample JSON using a powerful template syntax

Mockaroo
DataMaker
Random Data
MockTurtle.net
DDL to Data
SQLable
dbForge Data Generator for MySQL
Free, open source test file generator for QA. Real PDF, DOCX, PNG and ZIP files at any exact size, plus a manifest saying how your system should react.
Which is more popular?
Based on our record, JSON Generator seems to be more popular. It has been mentioned 9 times since March 2021.
Website, pricing, platforms and company facts side by side.
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JSO
JSON Generator
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| Website | json-generator.com | testingfilesgenerator.donislawdev.com |
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What each product offers, as listed by its team.

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How often each product is chosen within a category, 0–100% relative to the other.

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

JSON Generator: also generates mock data, but for JSON specifically. It's a bit more complex, but it allows for tailor-made results. - Source: dev.to / almost 3 years ago
Is there a generator for all the JSON generators out there? https://json-generator.com/. - Source: Hacker News / about 3 years ago
So I generated a random JSON file and tried parsing it. It doesn’t error, but whenever I do a println(root.Object().Value().String()), I get a panic: wrong type. If I do a println(root.Object().Present()), it prints false. So seems like... Source: over 3 years ago
Tracking Testing Files Generator since Nov 2026.
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