Articles
Discover expert insights and detailed guides in the field of articles for Dev Utils.
How Passwords Are Actually Stored
The journey from MD5 to bcrypt — what actually happens between your user's keystroke and a database.
Read Full GuideJSON Is Unreadable by Design
Raw API responses look like noise on purpose. Here's why JSON was built for machines first — and how developers learned to read it anyway.
Read Full GuideLorem Ipsum Is Lying to Your Clients
Placeholder text obscures real design problems and ships wrong assumptions into production.
Read Full GuideRegex: The Power Developers Rarely Use Correctly
Regular expressions are one of the most powerful tools in programming — and among the most misused.
Read Full GuideStop Copying Base64 Strings by Hand
Manual Base64 encoding wastes developer time in ways that are easy to ignore and hard to justify.
Read Full GuideThe Tool Every Code Reviewer Should Bookmark
Code review is about understanding what changed. Instant text diff shows it clearly — and the use cases go far beyond GitHub pull requests.
Read Full GuideUnix Timestamps: The Hidden Language Every Server Speaks
Every server, API, and database uses Unix timestamps to track time. Understanding what 1700000000 means changes how you debug, log, and build systems.
Read Full GuideUUIDs: The Invisible Backbone
How random identifiers replaced sequential database IDs — and why modern distributed systems couldn't function without them.
Read Full GuideWhat's Actually Hiding Inside Your JWT?
JSON Web Tokens are in every authorization header — but most developers have never actually decoded one.
Read Full GuideYAML Is Beautiful Until It Isn't
YAML's indentation-based syntax feels elegant — until whitespace betrays you at 2am.
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