Lightweight, no-signup-required tools to speed up your development workflow.
Test and debug JavaScript regular expressions in real-time with match highlighting, capture groups, and a quick reference cheatsheet.
Format, validate, and beautify JSON with syntax highlighting, collapsible tree view, error detection, minify, and download.
Convert JSON to YAML and YAML to JSON instantly with auto-detect, copy buttons, and clean formatting for Kubernetes and CI/CD configs.
Decode and inspect JSON Web Tokens instantly. View header, payload, claims with human-readable timestamps, and expiration status.
Generate UUIDs (v1, v4, v7) in bulk. One-click copy, uppercase/lowercase toggle, and remove hyphens option.
Build beautiful CSS gradients visually with live preview. Supports linear, radial, and conic gradients with draggable color stops.
Create layered CSS box shadows visually with live preview. Adjust offset, blur, spread, color, opacity, and inset, then copy the CSS instantly.
Build responsive flexbox layouts visually. Configure container alignment, wrapping, gaps, and item-level flex behavior, then copy production-ready CSS.
Build CSS Grid layouts visually with live preview. Configure rows, columns, gaps, and named template areas, then copy clean CSS and HTML.
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text or files. Compare hashes for integrity checks. All client-side.
Encode and decode Base64 strings instantly. Supports text, files, URL-safe mode, bulk conversion, and copy-to-clipboard.
Reference the full ASCII chart with live search, decimal, hex, octal, and binary conversions, control character descriptions, and one-click copy.
Create QR codes for URLs, text, WiFi, email, phone, and SMS. Download as PNG or SVG with customizable size, colors, and error correction.
Generate placeholder text instantly. Choose paragraphs, sentences, or words with character and word count stats. One-click copy.
Count words, characters, sentences, and paragraphs instantly. Includes reading time, speaking time, and keyword density analysis.
Validate and format YAML files instantly. Highlights syntax errors with line numbers, supports YAML to JSON conversion.
Check WCAG 2.1 AA and AAA color contrast compliance instantly. Enter any two colors to verify accessibility for text and UI components.
Encode and decode URLs, query strings, and special characters instantly. Supports UTF-8, percent encoding, encodeURIComponent and encodeURI.
Calculate subnet masks, network addresses, broadcast addresses, and host ranges with CIDR notation support and visual binary breakdown.
Validate .env files for syntax errors, missing values, duplicate keys, and security issues. Paste your .env content and get instant feedback.
Format, beautify, validate, and minify XML online. Features syntax highlighting, tree view, XPath queries, and instant error detection.
Generate a properly formatted robots.txt file. Block AI crawlers, set crawl delays, manage user agents, and add sitemap references.
Pick colors visually, convert between HEX, RGB, HSL, and CMYK formats. Get color harmonies, CSS code snippets, and WCAG contrast ratios.
Boost productivity with a free Pomodoro timer. Customizable work and break intervals, session tracking, audio alerts, and keyboard shortcuts.