developer-tools
18 articles about developer-tools.
Regex in 8 Steps: Patterns Every Developer Actually UsesLearn regex patterns step by step, from literal characters to lookaheads, with 12 real-world patterns to copy into production and the mistakes that break them.5 October 2026 · 6 min read
From Login to Dashboard: How JWTs Work, Step by StepHow JWTs work, request by request: how the token is created, what each part holds, how servers validate it without a database call, and the security pitfalls.2 October 2026 · 6 min read
Git Rebase vs Merge: 8 Questions That Settle the DebateGit rebase vs merge: when to merge, when to rebase, when interactive rebase fits, and why 'never rebase public branches' is cited but rarely understood.30 September 2026 · 6 min read
Diff Checker Guide: How It Works and 6 Use CasesHow diff algorithms work, unified vs split diff formats, why character-level diffs matter and practical diff checker uses beyond version control.6 June 2026 · 6 min read
UTF-8, Unicode and Character Encoding: A Developer GuideWhy mojibake happens, how Unicode code points map to UTF-8 bytes, how ASCII, Unicode and UTF-8 differ and why 'just use UTF-8' still needs understanding.4 June 2026 · 6 min read
CSS Grid in 2026: How to Actually Use SubgridCSS subgrid has had full cross-browser support since 2023. Learn the Grid basics, how subgrid solves alignment problems and when Grid beats Flexbox.2 June 2026 · 5 min read
JSON vs XML vs YAML: Choosing the Right Data FormatJSON vs XML vs YAML: a scenario-first comparison of syntax, use cases, performance, readability and schema validation, and where each format wins.31 May 2026 · 6 min read
How to Read and Write a Cron Expression: The Complete GuideUnderstand cron syntax step by step: the five fields, special characters, common patterns, timezone pitfalls and how to validate expressions before deploying.29 May 2026 · 6 min read
URL Encoding Explained: Why Links Break and How to Fix ThemWhat percent-encoding is, which URL characters must be encoded, encodeURI vs encodeURIComponent in JavaScript and the production bugs it causes.28 May 2026 · 5 min read
IP Address, Subnet Mask and CIDR Explained SimplyIP address and subnet mask CIDR notation (/24, /16) explained: what the octets mean, how to find the broadcast address and host range, and when to use a tool.27 May 2026 · 6 min read
CORS Errors Explained: Why Browsers Block and How to FixCORS errors explained: why the Same-Origin Policy exists, what each error means, how preflight requests work and which server headers fix the problem.26 May 2026 · 6 min read
UUID vs ULID vs NanoID: Which ID Format in 2026?UUID vs ULID vs NanoID compared on format, length, sortability, collision odds and database performance, with a decision guide for your next project.25 May 2026 · 6 min read
Base64 Encoding Explained: What It Is and When to Use ItBase64 encoding turns binary data into text so it can travel through text-only channels. How it works, where it's used and the mistakes developers make.14 May 2026 · 8 min read
What is a JWT? How to decode and verify JSON Web TokensJSON web tokens (JWTs) are everywhere in web auth, but what's inside? Learn to decode, read and verify them instantly without installing anything.14 May 2026 · 10 min read
How to minify CSS and JavaScript without a build toolYou don't need Webpack or Vite to minify CSS and JavaScript. Shrink assets in the browser, on the command line or inside your editor.14 May 2026 · 7 min read
Regex Cheat Sheet: Patterns Every Developer NeedsA practical regex cheat sheet: character classes, quantifiers, groups, lookaheads and the 12 most useful everyday patterns, with live examples.14 May 2026 · 8 min read
SHA-256 vs MD5: which hash algorithm should you use?SHA-256 vs MD5: MD5 is everywhere but broken for security, and SHA-256 is the modern default. What the difference means for your code, files and passwords.14 May 2026 · 8 min read
Format JSON Without Uploading Data: A 2026 GuideFormat JSON without uploading it: most online formatters send your data to a server, which is risky for production data. Do it in your browser instead.3 May 2026 · 8 min read