Developer Tools
Developer tool guides for JSON, Base64, Regex, APIs, formatting, validation, debugging, and browser-based technical workflows on WebRecast.
Articles in Developer Tools
- Online Privacy Tools That Never Phone Home: Passwords, Hashes, and Tokens in Your Browser
The riskiest moment in using a free online tool is the paste. Most privacy guides rank browser extensions and VPNs and skip the question you actually face several times a week: when I paste a secret into a web page, where does it go? This guide covers the tools where the answer is verifiable, becaus
- Learning Regex from Failures: Three Patterns That Broke Production
Most regex tutorials teach the happy path: literals, classes, quantifiers. The skill that separates a working pattern from a production incident is knowing the specific ways regexes fail. We collected three genuine failures from one codebase. Each one teaches a failure mode that no cheat sheet warns
- Web Development Tools 2025: The Stack That Actually Ships This Site
Every year brings another list of twenty web development tools nobody verified. This article is the opposite. It is a tour of the toolchain that builds and serves this website, with version numbers, resource limits, and costs taken from the repository on 2026-09-24. The site runs 164 tool routes and
- CSS Box Shadow Guide: Reading the Output of a Real Generator
Syntax guides list box-shadow values and call the last three optional. A generator cannot leave anything optional, because it emits one string per state. Ours writes every value, always in the same order, always with the same units. Learn to read that string and every tutorial example becomes trivia
- Meta Tags for SEO: Title, Description, Open Graph, and Twitter Cards
Meta tags tell search engines and social platforms what your page is about. Learn which meta tags matter for SEO, Open Graph, Twitter Cards, and how to generate them correctly.
- Free .htaccess Generator: Build Apache Rules With a Visual Interface
Compare htaccess generators and discover how WebRecast offers the best free alternative for generating Apache .htaccess rules without any coding knowledge.
- Free URL Slug Generator: Create SEO-Friendly Slugs Instantly
Compare slug generation methods (slugify npm, online-slug-generator.com, manual methods) and discover why WebRecast is the best free alternative for creating SEO-friendly URL slugs.
- Free JSON Formatter: Validate, Beautify, and Minify JSON in Your Browser
Compare JSON formatting tools (jsonformatter.org, jsonlint.com, VS Code extensions) and position WebRecast as the best free browser-based alternative.
- SQL Formatter, Rule by Rule: What Happens to Your Query Before You Copy It
A SQL formatter sounds like a parser. It rarely is. Ours applies five regex rules in a fixed order, and knowing that order tells you when the output is trustworthy and when it quietly changes what you wrote. Here is the pipeline, rule by rule, with the places it bites.
- Three Data Pipeline Bugs That Only Bit During Conversion
Converting between data formats is where assumptions die. The file looked fine, the parser looked fine, the pipeline returned success, and the output was wrong. Three bugs from one real migration, each a pattern that will visit your CSV and JSON pipelines too.
- Cron Expressions in Production: Schedules We Run and What They Cost
A cron expression is five fields that decide when something runs. Most guides stop at the syntax. The part that matters in production is what a schedule costs when it fires, what happens when it overlaps itself, and how you notice silence. We run a small fleet of scheduled jobs, and their behavior t
- Color Code Converter: HEX, RGB, HSL Conversion and Comparison
Understand the differences between HEX, RGB, and HSL color formats. Learn when to use each format and how to convert between them.
- Regular Expression Examples: Learn Regex by Solving Real Text Problems
Understand regular expressions with practical examples for emails, URLs, numbers, whitespace, and search patterns.
- JSON vs XML: Which Format Should You Use in 2026?
A practical comparison of JSON and XML for modern developers. Syntax, performance, file size, ecosystem, and clear rules for when to use each format.
- JWT Authentication Explained: Complete Guide for Developers
How JWT authentication really works: token structure, access vs refresh tokens, security best practices, common vulnerabilities, and how to decode and debug JWTs.
- Regex Cheat Sheet: Browser Syntax, Flags, and the Empty-Match Trap
Every regex cheat sheet lists the syntax. Almost none mention the pattern class that freezes a browser tab. This reference covers the syntax that runs in every modern engine, plus the failure modes we hit while building our own tester, whose defaults are cited throughout so you can reproduce every e
- Docker vs Podman: Which Container Tool to Use in 2026
Docker and Podman take different paths to the same goal. Compare architecture, security, CLI compatibility, compose support, and performance to pick the right container tool.
- UUID v4 vs UUID v7: Which UUID Version to Use
UUID v4 is random, UUID v7 is time-ordered. Compare database indexing, sortability, and collision risk to pick the right identifier for your system.
- Base64 Encoding Explained: How It Works and When to Use It
Base64 turns binary into safe ASCII text. Learn the 6-bit grouping, the 33 percent size overhead, data URI usage, and why Base64 is not encryption.
- Our Build Script Segfaulted Node for a Week: The Regex Behind It
A segfault in a Node script feels like a broken runtime. Ours was not. A single regex, executed hundreds of times against a large file, overflowed the regular expression engine's stack and took the whole process down with exit code 139. The same code ran fine on smaller inputs for months.
- JWT Decoder Checklist: Three Parts, One Padding Fix, and an Expiry Trap
You paste a token into a decoder, you get JSON back, and you move on. The problem is what the page did not check before showing that JSON. We read our own decoder line by line and ran the arithmetic to pin down exactly which checks run, which values are trustworthy, and where the badge can lie to yo
- Hash Generator Algorithms Compared: What 128 to 512 Bits Actually Buy You
Five hash algorithms in one page, all updating as you type, and no guidance on which row to copy. We ran all five algorithms on fixed inputs, read the implementation behind each row, and compared the results. This is what the sizes mean, which engine computes each digest, and where each algorithm be
- Color Code Converter Formats: Inputs, Outputs, and Roundtrip Drift
Paste a 12 color palette into a design handoff and convert each value by hand and you spend an afternoon injecting typos. Our color code converter takes the whole list at once and returns five formats per line. Three of its parsing and rounding rules surprise people regularly, so this article docume
- Debugging an API with curl: Three Real Sessions
curl is not a download tool with flags. It is a request builder that shows you exactly what an API saw, which makes it the fastest debugging instrument you own. Here are three API problems we solved with it, each in under ten minutes, each a pattern you can copy.
