Question 1

Are my files and data uploaded to your server?

Accepted Answer

No, absolutely not. All tools on CodingTool.dev run entirely in your browser using JavaScript. Your data never leaves your device, is never uploaded to our servers, and remains completely private. This client-side architecture ensures maximum privacy and security for your sensitive data. You can even disconnect your internet after the page loads, and most tools will continue working—proof that nothing is transmitted to servers.

Question 2

Is CodingTool.dev free to use?

Accepted Answer

Yes, CodingTool.dev is completely free to use. All 35+ developer tools are available without any registration, subscription, or payment. We support the platform through non-intrusive advertisements, which allow us to keep the service free and accessible to developers worldwide.

Question 3

Can I use CodingTool.dev for commercial or production work?

Accepted Answer

Absolutely! Many developers and companies use CodingTool.dev for production workflows—formatting API responses, generating secure passwords, validating JSON schemas, testing regex patterns, and more. The tools are reliable and fast enough for professional use. However, as with any software, we provide them "as is" without warranties, so for mission-critical operations, always independently verify outputs.

Question 4

Can I use these tools offline?

Accepted Answer

Some tools may work offline if your browser has cached the necessary files. However, the initial page load requires an internet connection. For full offline functionality, we are planning to release browser extensions and desktop applications in the future.

Question 5

Do I need to create an account?

Accepted Answer

No account or registration is required. Simply visit CodingTool.dev and start using any tool immediately. Your preferences (like theme and language) and tool history are saved locally in your browser using localStorage, so you can access them across sessions without logging in.

Question 6

How do I access tools quickly?

Accepted Answer

Use the command palette! Press Ctrl+K (Windows/Linux) or Cmd+K (Mac) anywhere on the site to open a quick search dialog. Type the name of any tool and press Enter to navigate instantly. You can also use the sidebar menu or search from the homepage.

Question 7

What languages are supported?

Accepted Answer

CodingTool.dev is available in 6 languages: English, Indonesian (Bahasa Indonesia), Chinese (Simplified), Chinese (Traditional/Taiwan), Japanese, and Russian. The site automatically detects your browser language, or you can manually select your preferred language from the language switcher in the header.

Question 8

Do you store my tool history?

Accepted Answer

Tool history is stored locally in your browser using localStorage, not on our servers. This means your history is private to your device and browser. You can clear your history at any time using the clear button in each tool, or by clearing your browser data.

Question 9

How accurate are the tools?

Accepted Answer

We strive for high accuracy, but as with any software, there may be edge cases or bugs. Our tools are thoroughly tested, but they are provided "as is" without warranties. For mission-critical or production use, always verify outputs independently. If you find any issues, please report them so we can fix them quickly.

Question 10

Can I suggest new tools or features?

Accepted Answer

Yes! We welcome feature requests and suggestions. You can contact us through the contact page with your ideas for new tools or improvements. We regularly review feedback and prioritize features based on community needs.

Question 11

What browsers are supported?

Accepted Answer

CodingTool.dev works on all modern browsers including Google Chrome, Mozilla Firefox, Safari, Microsoft Edge, and Brave. We recommend using the latest version of your browser for the best experience. Internet Explorer is not supported.

Question 12

Does the site work on mobile devices?

Accepted Answer

Yes! CodingTool.dev is fully responsive and optimized for mobile phones and tablets. All tools are accessible and functional on smaller screens, though some complex tools (like code editors) may be more comfortable to use on desktop.

Question 13

How is my privacy protected?

Accepted Answer

Your privacy is our top priority. Since all tools run in your browser, we never see or store your data. We only collect anonymous analytics (via Google Analytics) to understand which tools are popular and how to improve the site. You can read our full Privacy Policy for more details.

Question 14

Why do I see advertisements?

Accepted Answer

Advertisements (via Google AdSense) help us keep CodingTool.dev free for everyone. We carefully place ads to be non-intrusive and not interfere with your workflow. We do not show pop-ups or video ads. If you use an ad blocker, the site will still work perfectly—we just ask that you consider supporting us by allowing ads.

Question 15

Can I bookmark or save favorite tools?

Accepted Answer

Yes! You can bookmark tools directly in your browser (Ctrl+D / Cmd+D), or use the bookmark feature on our homepage. We are also working on a favorites system that will save your preferred tools locally for quick access.

Question 16

What is the tech stack behind CodingTool.dev?

Accepted Answer

CodingTool.dev is built with Next.js 15 (React 19), TypeScript, Tailwind CSS, and shadcn/ui components. We use next-intl for internationalization and deploy on Vercel with edge functions for optimal performance worldwide.

Question 17

How can I contact support or report bugs?

Accepted Answer

You can reach us through the Contact page, or email us directly at sofyansetiawannn@gmail.com. For bug reports, please include as much detail as possible (browser, OS, steps to reproduce). We typically respond within 24 hours.

Question 18

Which tool should I use to format my JSON?

Accepted Answer

Use the JSON Formatter tool for beautifying (adding indentation and line breaks) or minifying (removing whitespace) JSON data. It also validates syntax and highlights errors. If you need to convert JSON to other formats, try JSON to YAML Converter or JSON to CSV Converter.

Question 19

How do I encode/decode Base64?

Accepted Answer

The Base64 Encoder/Decoder tool converts text or binary data to Base64 format and vice versa. This is useful for embedding images in HTML/CSS, sending binary data in JSON, or working with data URIs. Remember: Base64 is encoding, not encryption—it does not provide security.

Question 20

What is the difference between MD5, SHA-256, and SHA-512?

Accepted Answer

All three are hashing algorithms, but they differ in security and output length. MD5 (128-bit) is fast but cryptographically broken—use only for checksums, not passwords. SHA-256 (256-bit) is secure and widely adopted (used in blockchain, certificates). SHA-512 (512-bit) offers even stronger security and is faster on 64-bit systems. For password storage, use specialized algorithms like bcrypt or Argon2, not plain hashing.

Question 21

Can I use the Regex Tester for complex patterns?

Accepted Answer

Yes! The Regex Tester supports full JavaScript regex syntax including lookaheads, lookbehinds, capturing groups, and Unicode properties. You can test patterns in real-time with immediate highlighting of matches. It is useful for validating email formats, extracting data, parsing logs, and debugging regex patterns before using them in code.

Question 22

How do I convert timestamps to human-readable dates?

Accepted Answer

Use the Timestamp Converter tool to convert Unix timestamps (seconds since January 1, 1970) to readable dates in your local timezone, or vice versa. For timezone conversions across different regions, use the Timezone Converter. For ISO8601 formatted dates (e.g., "2024-12-05T10:30:00Z"), use the ISO8601 Formatter.

Question 23

Are the generated passwords secure?

Accepted Answer

Yes. The Password Generator uses JavaScript's cryptographically secure random number generator (crypto.getRandomValues()) to create strong, unpredictable passwords. You can customize length (up to 128 characters) and character sets (uppercase, lowercase, numbers, symbols). For maximum security, use at least 16 characters with all character types enabled.

Question 24

What is JWT and how do I decode it?

Accepted Answer

JWT (JSON Web Token) is a compact, URL-safe token format used for authentication and information exchange in APIs. Our JWT Decoder tool decodes the header and payload (both are Base64-encoded JSON) and displays them in human-readable format. Note: Decoding a JWT does not verify its signature—anyone can decode a JWT, but only the server with the secret key can verify it is authentic and unmodified.

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