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

Polymarket
Kalshi
Prediction Market Radar
iPredicta
Telonex
Bloomberg Professional
Smarkets
Education & Reference
Which is more popular?
Website, pricing, platforms and company facts side by side.
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|
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|---|---|---|
| Website | extendsclass.com | predictit.org |
| 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 PredictIt yet.
What each product offers, as listed by its team.


Possible disadvantages
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 PredictIt. 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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Kalshi is a regulated exchange & prediction market where you can trade on the outcome of real-world events. Buy and sell Event Contracts.
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Generate realistic random JSON data through a simple and intuitive GUI.
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Search and compare published prediction-market prices across multiple venues. Super Match links compatible markets with source evidence, rules and settlement terms.
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