
JSON Generator
Dadroit JSON Viewer
Mockaroo
Insects API
Sheety
Sheetsu
Simple Scraper
Generate realistic random JSON data through a simple and intuitive GUI.

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

Which is more popular?
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | mockturtle.net | devfinancetools.com |
| Pricing | — | |
| Company | 2020 | 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


Build your custom JSON structure through our easy-to-use GUI or import an existing JSON schema. Then, sit back and let Mock Turtle generate thousands of random data based on your structure. It generates the data in real time as you build your tree structure. Plus, it's 100% free!
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...
What each product offers, as listed by its team.


Walkthroughs and reviews on video.
Free Nested JSON Mock Data Generator - MockTurtle.net
No DevFinanceTools videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using MockTurtle.net and DevFinanceTools. 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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Helping you make rational decisions, one calculation at a time.
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Open a 1GB JSON file in a blink 💣
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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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A realistic data generator to test your app
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Should you build an internal tool? Or just buy it?
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