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

Security Headers
Hardenize
Qualys SSL Server Test
Mozilla Observatory
Cloud Cultivator
Scorifya
Iron Check
Developed by Mozilla, the HTTP Observatory performs an in-depth assessment of a site’s HTTP headers and other key security configurations.

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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JSON Generator
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| Website | json-generator.com | developer.mozilla.org |
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What each product offers, as listed by its team.

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

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Overall verdict
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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 HTTP Observatory. 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 HTTP Observatory since Feb 2025.
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ExtendsClass's JSON generator allows to generate random JSON data from a template.
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This free online service performs a deep analysis of the configuration of any SSL web server on the public Internet.
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