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Essential utilities for software engineers — format JSON, decode JWTs, generate UUIDs, encode Base64, and more.
Format, validate, and minify JSON instantly with clear error hints.
Decode JWT header and payload quickly for debugging auth flows.
Encode text to Base64 or decode Base64 strings safely.
Encode URLs and query params or decode encoded URL strings.
Generate RFC-compliant UUID v4 values with one click.
Convert Unix timestamps to readable dates and back in seconds.
Hash passwords with bcrypt and compare plain text quickly.
Prettify and minify your SQL queries for better readability.
Convert YAML to JSON and vice versa with instant validation.
Create cron job schedule expressions with a visual interface.
Clean up HTML snippets and convert them to readable Markdown.
Convert JSON arrays to clean, downloadable CSV files instantly.
Convert CSV data to structured JSON objects for your APIs.
Test JavaScript RegExp online with flags, matches, groups, and quick presets.
Compare two JSON documents with a readable line-by-line diff.
Turn a copied cURL command into a JavaScript fetch snippet.
Grow your channel with AI-powered tools for transcripts, scripts, SEO analysis, and video optimization.
Optimize your website for search engines with free meta tag generators, sitemap validators, and social preview checkers.
Create better content with AI detection, word counting, title generation, and case conversion utilities.
Calculate loans, compound interest, and convert currencies with real-time exchange rates and gold prices.
Generate QR codes, download YouTube thumbnails, and create visual assets for your projects.