Guides & Tutorials
Developer Tools guides and tutorials
Practical, step-by-step guides to help you solve real tasks faster. Each guide explains a specific topic in depth and links to the relevant tools so you can take action immediately.
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How to Format JSON Safely Online
Best practices for formatting, validating, and cleaning up JSON data without exposing sensitive information.
Developer Tools
How to Decode JWT Tokens
Understand JWT structure, signing algorithms, security best practices, and how to decode tokens safely with our free tool.
Developer Tools
Regex Basics for Beginners
Learn regular expressions from scratch — syntax, quantifiers, groups, 10 practical patterns, and common mistakes to avoid.
Developer Tools
Understanding Hash Functions
MD5, SHA-1, SHA-256 compared — when to use each, common use cases, and misconceptions about hashing vs encryption.
Developer Tools
How to Convert JSON to CSV — Methods & Best Practices
Convert API responses and JSON data to spreadsheet-ready CSV. Covers nested objects, data types, and common pitfalls.
Developer Tools
How to Create a Strong Password — Security Guide
What makes a password strong, why length beats complexity, common mistakes, and how to generate unbreakable passwords.
Developer Tools
How to Validate JSON — Finding & Fixing Syntax Errors
Fix the 10 most common JSON errors: trailing commas, single quotes, missing brackets, and more. Free validator included.
Developer Tools
How to Validate JSON Against a Schema Online
Learn JSON schema validation step by step and validate JSON against required fields, data types, and API contracts after syntax checks pass.
Developer Tools
How to Convert YAML to JSON Safely
Convert YAML config files to JSON without losing structure, nesting, or data types, and learn what errors to check first.
Developer Tools
How to Convert XML to JSON Without Breaking Structure
Turn XML into usable JSON while checking nested elements, repeated nodes, attributes, and the final output shape.
Developer Tools
How to Encode and Decode Base64 Safely
Understand what Base64 is for, when to encode or decode it, and how to avoid common mistakes when handling text, tokens, and data blobs.
Developer Tools
How to Validate API Payloads With JSON Schema
Validate request and response bodies against JSON Schema rules before integration, QA, and release to prevent contract mismatches.