Developer Tools
Articles for developers: JSON, JWT, regex, Git, encoding, API debugging, and the online tools that speed them up. Practical write-ups focused on everyday engineering problems.
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Articles for developers: JSON, JWT, regex, Git, encoding, API debugging, and the online tools that speed them up. Practical write-ups focused on everyday engineering problems.
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Regular expressions look intimidating at first glance, but mastering a small core syntax unlocks powerful text matching in every programming language and editor — this guide teaches the essentials through 10 real-world patterns you will reach for repeatedly.
JSON, XML, and YAML each solve different problems — this guide compares all three across syntax, readability, tooling, and performance, then gives concrete decision rules so you always pick the right format for the job.
A complete guide to the tmux terminal multiplexer for developers, including recommended .tmux.conf configuration, common shortcut key cheat sheets, plugin recommendations, and practical tips to help you significantly improve terminal efficiency.
JWT (JSON Web Token) is the backbone of modern stateless authentication — this guide explains the token structure, standard claims, the authentication flow, storage strategies, and the critical security pitfalls that cause real-world breaches.
Convert text to ASCII decimal, hexadecimal, and binary values. Decode hex or decimal bytes back to text. Includes complete ASCII table reference.
Convert URLs and handle special characters with ease. Encode spaces, symbols, and international characters for safe URL transmission. Free online tool with instant export.
Master Base64 encoding and decoding with our free online tool. Learn how to encode text and data, decode Base64 strings, and work with UTF-8 seamlessly.
Convert any image to Base64, Data URL, CSS background, HTML img tag, or Markdown instantly. 100% local processing—no upload or file sharing.
Convert text to Unicode code points, escape sequences, and decimal values instantly. Decode Unicode back to readable text. Essential for developers and language specialists.
Encode and decode HTML entities instantly. Convert special characters to HTML-safe format and back. Essential for web developers and content creators.
Convert numbers between binary, octal, decimal, and hexadecimal formats instantly. Essential tool for programmers, engineers, and computer science students.
A free online CSS code generator with visual controls for border-radius, box-shadow, gradient, and CSS transforms. Preview changes live and copy production-ready CSS instantly — no coding required.