Blog
Tips, tutorials, and best practices for modern developers.
SSL Certificate Checker: Verify Your Website's HTTPS Security
Check SSL certificate validity, expiration dates, chain completeness, and protocol support. Prevent downtime from expired certificates.
SQL to MongoDB: Translate Relational Queries to NoSQL Without the Guesswork
Convert SELECT, INSERT, UPDATE, and DELETE SQL statements into MongoDB query syntax instantly.
SQL Query Builder: Compose Complex Queries Without Memorizing Syntax
Build SELECT, JOIN, WHERE, GROUP BY, and subqueries through a visual interface — get optimized SQL output.
SQL Injection Tester: Find and Fix Query Vulnerabilities Before Attackers Do
Test your queries against common injection patterns and learn to write parameterized queries that are immune.
SHA-256: The Hashing Algorithm Behind Bitcoin and Modern Security
Generate SHA-256 hashes for data integrity, digital signatures, and blockchain. Understand why SHA-256 is the industry standard for secure hashing.
Securing Your Web Application: A Developer's Checklist
A practical security checklist covering authentication, input validation, HTTPS, headers, and more — with links to tools that help you implement each item.
Secure Token Generation for APIs, Sessions, and Verification Links
Generate cryptographically secure random tokens for API keys, session IDs, verification links, and CSRF protection. Configurable length and format.
SCSS to CSS: Compile Sass Preprocessor Code for the Browser
Compile SCSS/Sass to standard CSS. Handle variables, nesting, mixins, and imports without a build tool. Preview CSS output instantly.
Schema Designer: Define Data Models Visually for SQL, NoSQL, and APIs
Design database schemas with a drag-and-drop interface — export as SQL, Prisma, TypeORM, or JSON Schema.
ROT13 Cipher: The Classic Text Obfuscation Method Explained
Apply ROT13 substitution cipher to obfuscate text. Learn its history, how it works, and why it's still used for spoiler tags and puzzles.
robots.txt: Control How Search Engines Crawl Your Website
Generate robots.txt files to control search engine crawling. Allow or block specific pages, set crawl rates, and point to your sitemap.
REST API Builder: Design, Test, and Debug Endpoints Without Postman
Construct HTTP requests visually, set headers and body payloads, inspect responses — all in one browser tab.