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Free, fast, and practical developer tools that run instantly in your browser. JSON, encoding, hashing, time, and more.

Which is more popular?
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | b4x.com | codingtool.dev |
| Pricing | — | |
| Listed in |
What each product offers, as listed by its team.


Possible disadvantages
No features have been listed yet.
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of CodingTool.dev yet.
Walkthroughs and reviews on video.
Little Bear B4X: A Short Sound Review
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing B4X and CodingTool.dev.
CodingTool.dev's answer:
CodingTool.dev brings 330+ developer utilities into one fast, privacy-focused platform. Most tools run locally in the browser, while tools that require network or server processing clearly disclose it. There is no signup, no installation, and no paywall. The platform also supports multiple languages and covers everything from data conversion and API debugging to security, productivity, PDF, browser, and AI developer tools.
CodingTool.dev's answer:
CodingTool.dev focuses on three things: breadth, privacy, and zero friction. Instead of switching between many single-purpose websites, developers can access hundreds of tools from one consistent interface. Most processing happens locally in the browser, processing boundaries are clearly disclosed, and users can start immediately without creating an account or installing anything. All tools are free to use.
CodingTool.dev's answer:
CodingTool.dev is primarily built for software developers and technical professionals, including frontend, backend, full-stack, DevOps, QA, security, and API engineers. It is also useful for students, technical creators, and anyone who frequently works with code, structured data, APIs, files, debugging, or developer workflows.
CodingTool.dev's answer:
CodingTool.dev started from a simple frustration: having to jump between dozens of websites for everyday development tasks such as formatting JSON, decoding data, testing regular expressions, or generating hashes.
As a full-stack developer, I wanted a single place where these utilities were fast, trustworthy, and easy to use without registration or unnecessary data uploads. What began as a small collection of tools gradually grew into CodingTool.dev, which now provides 330+ utilities for developers.
The guiding principle remains simple: build tools that are genuinely useful in everyday development work.
CodingTool.dev's answer:
CodingTool.dev is primarily built with Next.js 15, React 19, TypeScript, Tailwind CSS, shadcn/ui, and next-intl. The platform uses the Next.js App Router and is designed around a local-first architecture, with most deterministic processing performed directly in the browser.
CodingTool.dev's answer:
CodingTool.dev is a free, self-service platform with no required user accounts, so we do not maintain or publicly disclose a list of named customers. It is used by developers across startups, independent projects, and enterprise environments.
Share your experience with using B4X and CodingTool.dev. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


B4X is a cross-platform tool that helps in creating applications on platforms like Google Android, Arduino, Apple iOS, and so on. The syntax of B4X is similar to BASIC.
B4X is a suite of rapid application development IDE’s. This platform allows you to create applications on the following platforms: Google’s Android, Apple’s iOS, Java, Raspberry Pi, and Arduino. B4X is a popular tool...
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