
JSONFormatter.org
Code Beautify JSON Validator
FreeFormatter
CyberChef
IT Tools
CodeBeautify
CodeSwissKnife
55 free formatters, converters, generators, and reference tools for developers — JSON, Base64, JWT, regex, hashes, subnets. Nothing you paste is ever uploaded.

Dowork
App Cost Calculator
Cleveroad
Estimapp
Infracost
AppCost.AI
App vs. Website
Clever tool to estimate cost of building an app
Which is more popular?
Based on our record, HMTMAA seems to be more popular. It has been mentioned 2 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | whitekit.dev | howmuchtomakeanapp.com |
| Pricing | — | |
| Platforms | — | |
| Listed in |
In their own words, as submitted to SaaSHub.


WhiteKit brings together 55 developer tools in one place: formatters (JSON, XML, SQL, YAML), converters, security utilities (JWT, hashing, encoding), network calculators, and text tools. Everything runs 100% client-side. Your data never leaves your device, so you can safely paste API keys,...
No description of HMTMAA 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 WhiteKit.dev and HMTMAA. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking WhiteKit.dev since Aug 2026.
Not incredibly accurate for all cases but I'll give you a ballpark http://howmuchtomakeanapp.com/. Source: about 5 years ago
I am looking to build something like this: http://howmuchtomakeanapp.com/. Source: over 5 years ago
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Online JSON Formatter and JSON Validator will format JSON data, and helps to validate, convert JSON to XML, JSON to CSV. Save and Share JSON
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A collaborative software cost and time estimation app
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Code Beauty’s JSON Validator or JSON Lint is easy to use tool to copy, paste and validate JSON data.
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Plan your app development budget within 2 minutes
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Freeformatter is a platform that contains free online tools for developers, including formatters (json, html, xml, sql, etc.), minifiers (css, javascript), compactors, validators, and much more.
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Our team of software engineers built over 100 projects
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