
Mockaroo
JSON Generator
MockTurtle.net
ExtendsClass's JSON generator allows to generate random JSON data from a template.

Zernio
Ayrshare
Blotato
Postiz
Upload-Post
Buffer
Hootsuite
Publish and schedule posts across Instagram, X, LinkedIn, Facebook, Threads, YouTube, TikTok, Pinterest, Bluesky, and Telegram with one unified social media API. No developer apps or OAuth maze.
Which is more popular?
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | extendsclass.com | postzen.dev |
| Pricing | ||
| Company | 2019 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


This free online tool allows to generate JSON dataset. You can generate multiple JSON files exported to a zip archive. No limits. No registration.
No description of PostZen.Dev yet.
What each product offers, as listed by its team.


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


Share your experience with using ExtendsClass JSON Generator and PostZen.Dev. For example, how are they different and which one is better?
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Create mock and sample JSON using a powerful template syntax
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Powerful APIs that enable you to send social media posts effortlessly. Post and manage your users social account via an API.
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Generate realistic random JSON data through a simple and intuitive GUI.
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Publish to 9 social platforms from one tool or one API call. AI writes, designs, and schedules a week of content in minutes, with a hosted MCP server so Claude and other agents can post for you.
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