
Omni Calculator
calculator.net
Build vs. Buy Calculator
DeveloperToolStack
DevNestTools
DevTools Advanced
DevTools.fit
Free, no-signup calculators for the money side of building software and freelancing

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

Which is more popular?
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | devfinancetools.com | extendsclass.com |
| Pricing | ||
| Company | 2026 | 2019 |
| Listed in |
In their own words, as submitted to SaaSHub.


DevFinanceTools is a collection of free, no-signup calculators for the money side of building software and freelancing. Everything runs in your browser — no account, no tracking beyond basic page-view analytics — and every tool shows its formulas and benchmarks so you can check the maths...
This free online tool allows to generate JSON dataset. You can generate multiple JSON files exported to a zip archive. No limits. No registration.
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 DevFinanceTools and ExtendsClass JSON Generator. For example, how are they different and which one is better?
When comparing DevFinanceTools and ExtendsClass JSON Generator, you can also consider the following products.

Helping you make rational decisions, one calculation at a time.
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A realistic data generator to test your app
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Online calculator for quick calculations, along with a large collection of calculators on math, finance, fitness, and more, each with related in-depth information.
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Create mock and sample JSON using a powerful template syntax
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Should you build an internal tool? Or just buy it?
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Generate realistic random JSON data through a simple and intuitive GUI.
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