· 5 min read
Base64 isn't encryption: what it's actually for, and 5 ways teams misuse it
Base64 encodes binary as ASCII. It does not hide, secure, or compress anything. Here is what it is for, and the misuses that bite.
base64securityencoding
Blog
Guides, tutorials, and tips for developer tools & privacy.
· 4 min read
Writing conventional commits with AI: a 60-second workflow
Conventional Commits explained, plus a pre-commit hook that drafts the message from your staged diff. Saves you 30 seconds, 50 times a day.
gitaiworkflow
· 6 min read
The privacy cost of online dev tools: why we built ours to leak nothing
Most "free" online formatters send your data to a server. Here is what that costs you, and how to verify a tool runs entirely in your browser.
privacysecuritytools
· 5 min read
The regex patterns every backend developer should bookmark
20 reusable regex patterns for emails, URLs, UUIDs, JWTs, semver, ISO datetimes, IPs and more — each with the edge case that bites you.
regexbackendvalidation
· 6 min read
From SQL to JSON to CSV: the format conversions you'll do 1000 times
Practical recipes for the conversions every backend hits weekly — Postgres rows to JSON, JSON arrays to CSV, CSV to typed records, with edge cases.
sqljsoncsv
· 5 min read
Why your JSON.parse is failing: 8 hidden traps and how to debug them
JSON.parse breaks in surprising ways. A field guide to trailing commas, BOMs, NaN, comment hacks, and 5 more silent killers — with fixes.
jsondebuggingjavascript
· 6 min read
JWT decoded: a complete reference for inspecting tokens safely in 2026
Anatomy, claims, algorithms, decoding without verification, and the security pitfalls — alg:none, kid confusion, audience mismatch — covered in depth.
jwtsecurityauthentication
· 5 min read
How to write a good robots.txt in 2026 (and why most are broken)
Modern robots.txt covers AI crawlers, sitemaps, and crawl-delay quirks. The 2026 guide with rules for GPTBot, ClaudeBot, PerplexityBot, and Google-Extended.
seorobots-txtai
· 3 min read
We Built an MCP Server: Use devformat.tools from Claude, Cursor, and Any AI Agent
devformat.tools now exposes 10+ server-side tools via MCP (Model Context Protocol). Use YAML-to-JSON, password generation, cron parsing, and more directly from your IDE.
mcpaiapideveloper-tools
· 4 min read
Regex Cheat Sheet: Quick Reference for Regular Expressions
A quick reference cheat sheet for regular expressions. Covers syntax, character classes, quantifiers, groups, lookaheads, and common patterns with examples.
regexreferencecheat-sheet
· 3 min read
Base64 Encoding Explained: When and How to Use It
Learn what Base64 encoding is, how it works, when to use it, and common misconceptions. Practical examples for developers.
base64encodingguide
· 4 min read
What Is a JWT Token? A Developer's Guide to JSON Web Tokens
Learn what JWT tokens are, how they work, when to use them, and common security pitfalls. A practical guide for developers with code examples.
jwtauthenticationsecurityguide
· 3 min read
Best Free JSON Formatters in 2026: Privacy & Speed Compared
A comparison of the best free JSON formatters in 2026, focusing on privacy, speed, and features. Find out which tools keep your data safe.
jsontoolscomparison
· 4 min read
The 2025 Developer Tools Data Leak: What Happened and How to Protect Yourself
In November 2025, CodeBeautify and JSONFormatter exposed 5GB of user data including API keys and bank credentials. Here's what happened and how to stay safe.
securityprivacydata-leak