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

DevToys
CodeSwissKnife
CodeBeautify
CyberChef
JSONFormatter.org
JSON Formatter & Validator
DevBox
Native macOS developer tools: JSON formatter, JWT debugger, Base64 converter, regex tester, and text diff. Work offline with local processing and Option shortcuts. 15-day free trial and a one-time license.

Which is more popular?
Website, pricing, platforms and company facts side by side.
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| Website | whitekit.dev | devsexy.com |
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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,...
Offline developer toolbox for macOS DevSexy brings 35 native macOS developer tools into one focused workspace. Format and validate JSON, debug JWT tokens, encode or decode Base64, test regular expressions, compare text, and convert Unix timestamps without breaking your coding flow. Tool input is...
What each product offers, as listed by its team.


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


As answered by people managing WhiteKit.dev and DevSexy.
DevSexy's answer:
DevSexy combines 35 native macOS developer tools with a workflow built around global Option shortcuts. Use Option-J for the JSON formatter, Option-B for Base64, and Option-T for Unix time; hold Option to see the shortcut HUD, then use Silent Mode when the keys feel familiar. Quick menu-bar popups handle small tasks, while the full workbench supports longer sessions. Tool input is processed locally and the Mac app works offline. The website also offers 35 free online developer tools with browser-local processing.
DevSexy's answer:
Developers who frequently inspect API payloads, debug JWT tokens, format JSON, convert Base64, test regular expressions, compare configuration changes, or convert Unix timestamps. The native macOS app fits developers who want offline developer utilities close to their coding workspace. The free browser tools are useful when a developer wants to complete a specific task with local processing and no account or upload step.
DevSexy's answer:
The native macOS app is built with Swift, SwiftUI, and AppKit. The free online developer tools use Nuxt, Vue, and TypeScript, with tool input processed locally in the browser.
Share your experience with using WhiteKit.dev and DevSexy. For example, how are they different and which one is better?
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A collection of converters, formaters, encoders, generators and other tools for your Windows desktop.
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Online Tools like Beautifiers, Editors, Viewers, Minifier, Validators, Converters for Developers: XML, JSON, CSS, JavaScript, Java, C#, MXML, SQL, CSV, Excel
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Feature-packed developer toolkit. Includes text conversion, encoding, UUID generation, cryptography, color conversion, JSON/XML formatting, and more for simplified, efficient development tasks without online data transmission.
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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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