Developer Blog

AI tools process your data on remote servers. Here's why browser-based local tools are the safer choice — especially when working with sensitive API responses and production data.

How to verify SHA-256 checksums for AI model files on Windows, macOS, and Linux. Protect against corrupted downloads and supply chain attacks.

AI APIs return deeply nested JSON with tool calls and structured outputs. Format and debug OpenAI, Claude, and Gemini responses — privacy-first, no server.

JSON formatieren, validieren und debuggen — online, per CLI und in VS Code. Häufige Fehler, Best Practices und KI-API-Antworten formatieren.

SHA-256 Hashes unter Windows (PowerShell), macOS und Linux prüfen. Ideal für KI-Modell-Downloads von Hugging Face und Ollama.

JSON formatteren online, via CLI en in VS Code. Praktische voorbeelden, veelgemaakte fouten en AVG-conform formatteren van AI API-antwoorden.

Formater du JSON en ligne, en ligne de commande et dans VS Code. Guide complet avec exemples, erreurs courantes et conformité RGPD.

Formatera JSON online, i terminalen och i VS Code. Komplett guide med praktiska exempel. GDPR-kompatibel, utan registrering.

Online tools, Python pandas, JavaScript, jq, and Excel Power Query — with working code for flat JSON, nested objects, arrays, and API responses.

Most-searched regex topic on Stack Overflow (3.5M views). Best pattern for JavaScript, Python, React, Django — with DNS MX verification and full test suite.

Entropy in bits, crack time tables, why P@ssw0rd1! fails despite looking strong, zxcvbn integration, and NIST 2024 guidance on rotation.

Base64 provides zero confidentiality — anyone decodes it in one line. When Base64 is useful, and when to use AES-256, bcrypt, or Argon2 instead.

Step-by-step checksum verification on every platform: shasum, sha256sum, PowerShell Get-FileHash, and Python. What to do when the hash does not match.

Create strong memorable passwords using Diceware passphrases and the sentence method. When to memorise passwords vs use a manager, how to generate random passwords, and breach checking.

Check word count in Google Docs (Ctrl+Shift+C), Microsoft Word, any website, and online. Includes SEO word count targets by content type and social media character limits.

Decode any Base64 string online in seconds. How to decode Base64 images, JWT tokens, and files in JavaScript, Python, Node.js, and the command line — with common error fixes.

Fix invalid JSON: trailing commas, single quotes, unquoted keys, comments, undefined values, unescaped characters, missing commas, mismatched brackets — all errors with solutions.

Create a free QR code for any use: website URL, WiFi password, WhatsApp contact, Instagram profile, email, PDF, or business card vCard — with step-by-step instructions.

Everything about Unix timestamps: getting the current timestamp, converting to dates, seconds vs milliseconds, timezone handling, database storage, and the Year 2038 problem.

How URL encoding (percent-encoding) works, which characters need encoding, encodeURIComponent vs encodeURI, URLSearchParams, and encoding in JavaScript and Python.

SHA-256 vs MD5 compared: collision resistance, speed, security status, and exactly when each is appropriate — with code examples in JavaScript, Node.js, and Python.

Learn how to decode JWT tokens to read claims, verify signatures in JavaScript and Python, understand exp and iat timestamps, and avoid common JWT security mistakes.

The complete regex cheat sheet: anchors, character classes, quantifiers, groups, lookaheads, flags, and real-world patterns for JavaScript and Python.

How to create strong passwords, use passphrases, choose a password manager, enable 2FA, and understand passkeys in 2026.

JSON vs XML compared: syntax, performance, data types, schema validation, and a practical guide for when to use each in 2026.

Every HTTP status code explained: 1xx, 2xx, 3xx, 4xx, 5xx — what they mean, when they appear, and how to handle them in APIs.

Fix trailing commas, Unexpected token, single quotes, HTML responses, circular references, and 6 more real JSON errors — with copy-paste solutions.

A complete guide to UUIDs: what they are, the 5 versions explained, how to generate them in JavaScript, Python, and online — plus when to use them.

Step-by-step solutions for the 7 most common JSON parsing errors. Find and fix errors instantly.

Privacy, speed, and features compared across JSON formatters, regex testers, and password generators.

Format, validate, and beautify JSON in seconds. Step-by-step guide with examples and common error fixes.

Understand Base64 in 5 minutes. What it is, why it's used, how it works step by step, and when NOT to use it.

The three rules of uncrackable passwords, the 10 most common mistakes, and why length beats complexity every time.