Cron Expression Generator
Free online cron expression generator. Build cron schedules visually with dropdowns, common presets, and live preview of next execution times.
JSON Editor
Free online JSON editor with tree view, text editing, formatting, and minification. Paste JSON to visualize, edit, and export instantly.
Regex Visualizer
Test and visualize regular expressions in real time. Highlight matches, view capture groups, toggle flags, and use common presets for email, URL, IP, and more.
XML Formatter & Validator
Free XML Formatter – Paste your XML code to instantly format, validate, or minify it. Pretty print XML with custom indentation. Check for syntax errors and clean up messy XML files online.
HTML Formatter & Beautifier
Free HTML Formatter – Paste messy HTML to instantly beautify with proper indentation, or minify for production. Clean up HTML code online with custom indent settings.
CSS Formatter & Beautifier
Free CSS Formatter – Paste your CSS to instantly beautify with proper indentation, or minify to reduce file size. Format stylesheets online with custom indent options.
JavaScript Formatter & Beautifier
Free JavaScript Formatter – Beautify minified JS code with proper indentation, or minify for production. Format JavaScript online instantly. No signup required.
SQL Formatter & Beautifier
Free SQL Formatter – Paste SQL queries to instantly format with proper indentation and keyword capitalization. Minify SQL for embedding. No signup required.
JSON to CSV Converter
Free JSON to CSV Converter – Paste JSON data to instantly convert to CSV format. Download as .csv file. Custom delimiters supported. No signup required.
CSV to JSON Converter
Free CSV to JSON Converter – Paste CSV data to instantly convert to JSON format. Auto-detects headers and data types. No signup required.
XML to JSON Converter
Free XML to JSON Converter – Paste XML to instantly convert to JSON format. Preserves attributes, nested elements, and text content. Browser-based, no upload.
YAML to JSON Converter
Free YAML to JSON Converter – Paste YAML config to instantly convert to JSON. Handles nested structures, arrays, and all YAML types. No signup needed.
Markdown to HTML Converter
Free Markdown to HTML Converter – Write or paste Markdown to instantly see the HTML output with live preview. Supports tables, code blocks, and all MD syntax.
SHA Hash Generator
Free SHA Hash Generator – Enter text to instantly generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes. Uses Web Crypto API. No data sent to servers.
JWT Decoder & Inspector
Free JWT Decoder – Paste a JWT token to instantly decode and inspect the header, payload, and signature. Check expiration, issuer, and claims. No signup needed.
File Hash Calculator
Free File Hash Calculator – Drop any file to calculate SHA-1, SHA-256, SHA-384, and SHA-512 checksums. Verify file integrity locally.
IP Subnet Calculator
Free Subnet Calculator – Enter an IP address and CIDR prefix to calculate subnet mask, network address, broadcast, usable IP range, and host count.
HTTP Status Code Reference
Free HTTP Status Code Reference – Browse all HTTP status codes with search and filtering. 1xx to 5xx with descriptions and use cases.
CSS Box Shadow Generator
Generate CSS box-shadow code visually with live preview.
CSS Flexbox Generator
Build CSS Flexbox layouts visually with live preview.
CSS Grid Generator
Build CSS Grid layouts visually with live preview.
CSS Text Shadow Generator
Generate CSS text-shadow code visually with live preview.
CSS Border Radius Generator
Generate CSS border-radius code visually. Adjust each corner with live preview.
CSS Animation Generator
Create CSS animations visually with presets and live preview.