Developer Tools— Guides & Articles

• JSON to CSV Alternative With Built-In Formula Protection

  Published 2026-08-21

  A JSON to CSV alternative that runs locally and produces RFC 4180-style CSV with default formula-injection protection for nested string values.

  

• Format a JSON File in VS Code and in Your Browser

  Published 2026-08-21

  Format a JSON file in VS Code with the built-in shortcut — and reach for a browser JSON formatter when the data is private or error-prone.

  

• Local JavaScript Playground Alternative for Safe Testing

  Published 2026-08-20

  This JavaScript playground alternative runs short snippets in a worker sandbox with a 1.5s timeout, no network, no DOM access, in your browser.

  

• How to Convert IPv4 to a 32-Bit Integer for Storage

  Published 2026-08-20

  Translate a dotted-decimal IPv4 address into the exact unsigned 32-bit integer form used in databases, firewall exports, and binary protocol fields, without…

  

• Convert Decimal Numbers to IEEE 754 Floating Point Format

  Published 2026-08-19

  Encode any decimal value into binary32 or binary64 IEEE 754 fields, then inspect sign, exponent, fraction, hex, and classification in your browser.

  

• HTTP Status Codes Alternative: A Registry-First Lookup

  Published 2026-08-19

  Looking for an HTTP status codes alternative? Search the registry-only reference of 64 IANA-registered codes by number, phrase, class, or RFC reference.

  

• How to Edit HTML in a Browser Using a Sandboxed Preview

  Published 2026-08-18

  Edit HTML in a browser using a sandboxed editor. Write markup, add CSS, and render a restricted local preview without scripts or remote assets.

  

• Format HTML Code from Notepad++ Without Plugins

  Published 2026-08-18

  Format HTML code from Notepad++ without installing plugins. Paste your markup, normalize through the browser parser, strip comments, and copy the result.

  

• Why Is Hello World Used in Programming: A Practical Guide

  Published 2026-08-18

  Hello World is the smallest program that proves a toolchain works. See what it teaches, how 12 languages differ, and how to compare real examples fast.

  

• How to Make Flexbox Items Fill the Container Height

  Published 2026-08-18

  To make a flex container fill its height, combine a defined container height with align-items: stretch. Configure five Flexbox controls and copy validated…