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Free online character counter with real-time word, line, and character count. Perfect for Twitter/X posts, essays, and reports. Browser-based, no signup required.

Free online JSON formatter and validator. Beautify, minify, and validate JSON with syntax checking. Perfect for API development and debugging. Browser-based, secure, no signup.

Free QR code generator for URLs and text. Customize size, color, and error correction. Download as PNG. Perfect for business cards, flyers, and websites. No signup required.

Free online case converter supporting camelCase, PascalCase, snake_case, kebab-case, and more. Perfect for code refactoring and variable naming. Browser-based, secure.

Free URL encoder and decoder for percent encoding. Convert special characters and Japanese text for URLs. Perfect for query parameters and API development. Browser-based, no signup.

Free online converter for full-width and half-width characters. Supports alphanumeric and katakana conversion. Perfect for business documents and data entry. Browser-based, private.

Free cryptographically secure password generator. Create strong passwords with uppercase, lowercase, numbers, and symbols. 8-128 characters. Browser-based, no server transmission.

Free online Base64 encoder and decoder. Supports UTF-8 and Japanese text. Perfect for Web APIs, email attachments, and data URLs. Browser-based, secure, no signup required.

Free text formatting tool with space adjustment, line break removal, full/half-width conversion, and katakana/hiragana conversion. Perfect for data preprocessing. Browser-based.

Free hash generator for MD5, SHA-1, SHA-256, and SHA-512. Perfect for file integrity checks, password hashing, and data verification. Browser-based, secure, no signup.

Free online image resizer with aspect ratio lock. Batch resize multiple images. Supports JPEG, PNG, WebP. Perfect for social media, blogs, and websites. Browser-based, private.

Free online image compressor for JPEG, PNG, WebP. Reduce file size up to 90% with adjustable quality. Batch processing supported. Perfect for web optimization and SEO. Browser-based.

Free online regex tester with real-time pattern matching and syntax highlighting. Test regular expressions with flags (g,i,m,s,u,y), capture groups, and instant match highlighting. Perfect for developers and data validation.

Free online text diff checker. Compare two texts with character-level or line-level highlighting. Export as HTML, Markdown, or Unified Diff format. Browser-based, no signup.

Free online Markdown to HTML converter with GitHub Flavored Markdown support. Real-time preview, syntax highlighting, tables, and task lists. Perfect for blogging and documentation. Browser-based.

Free age calculator from birthdate. Display age in years, months, days, total days, hours, and seconds. Calculate age at specific dates. Includes age reference table. Browser-based.

Free BMI (Body Mass Index) calculator from height and weight. Shows BMI rating, standard weight, ideal weight range, and BMI distribution chart. Browser-based health management tool.

Free color code converter for HEX, RGB, HSL formats. Includes color picker, palette generator, and CSS variable output. Perfect for web design. Browser-based, no signup required.

Free online tax calculator for income tax, resident tax, social insurance, and take-home pay estimation. Spouse and dependent deductions supported. Visual pie chart breakdown. Based on 2024 tax laws. Perfect for salary planning.

Free online CSV to JSON and JSON to CSV converter. Streamline Excel data, API integration, and data import/export. Preview and error checking included. Browser-based, secure.

Free UUID (v4) batch generator. Create random, collision-resistant unique IDs instantly. Perfect for database primary keys, API identifiers, session IDs. With/without hyphens. Browser-based.

Free Unix timestamp to datetime converter with millisecond support. Convert epoch time to readable dates instantly. Timezone selection, current time button, and ISO 8601 format output. Perfect for API development and log analysis.

Free Lorem Ipsum dummy text generator. Specify paragraphs, words, or characters. Perfect for web design, mockups, and presentations. Browser-based, easy copy-paste. Designer essential.

Free HTML/XML special character escape and unescape tool. Perfect for XSS prevention, code display, and data conversion. Browser-based, secure, no signup required.

Free line sorting and duplicate removal tool. Sort ascending/descending, remove duplicate lines. Perfect for CSV data, list management, and log analysis. Browser-based, private.

Free SEO-optimized HTML meta tag generator for title, description, OGP, and Twitter Cards. Character counter included for optimal length. Generate all essential meta tags instantly. Copy-paste ready. No signup.

Free JSON Web Token (JWT) decoder. Instantly display header, payload, and signature. Perfect for token inspection, debugging, and expiration checking. Built-in Base64 decoder. Developer essential.

Free visual cron expression generator. Select minutes, hours, days, months, and weekdays to auto-generate. Perfect for Linux, Unix, and server scheduled tasks. Preview included. Browser-based.

Free online PDF merger tool. Combine multiple PDFs with drag-and-drop reordering. Up to 10 files. Preview included. Browser-based, no server upload, completely secure.

Free multi-language word counter supporting English, Japanese, and Chinese. Real-time word count, character count, paragraph count, and reading time calculation. Perfect for essays, reports, and blog posts.

Free online file converter for images, PDFs, videos, and audio. Convert PNG/JPEG/WebP/AVIF, PDF/Word, MP4/GIF, and more. Drag & drop, browser-based privacy protection, unlimited conversions. World's fastest file converter.

Free online plagiarism checker to detect duplicate content and text similarity. Compare two texts and get similarity percentage with highlighted matches. Perfect for essay writing, academic papers, and SEO content. Browser-based, no signup required.

Free online meme generator with 50+ popular templates. Create viral memes with custom text, fonts, and share on social media. Drake, Distracted Boyfriend, Success Kid, and more. Perfect for viral content creation.

Free online screenshot tool with full-screen and window capture. Add annotations, crop, resize, and save as PNG/JPEG. Perfect for presentations, manuals, and bug reports. Browser-based, no download required.

Free online image editor with cropping, resizing, rotation, and filters (grayscale, sepia, brightness, etc.). Browser-based, supports PNG, JPEG, WebP. No installation required, easy to use.

Free online background remover. Automatically remove backgrounds from images, output transparent PNG. Perfect for portraits and product photos. Browser-based, privacy protected, fast processing without AI.

Free online screen recorder. Record screen, tabs, and windows in your browser, WebM/MP4 output support. No installation required, privacy protected, high-quality recording. Perfect for online meetings, tutorials, and gameplay.

Free online audio converter. Supports MP3, WAV, OGG, AAC, FLAC formats. High-quality conversion, adjustable bitrate. Browser-based with privacy protection, no installation required. Perfect for music files, voice memos, and podcasts.

Free online CSS gradient generator. Create beautiful gradients with intuitive UI, copy CSS code instantly. Supports linear and radial gradients, multiple colors. Perfect for web design, backgrounds, and creative projects.

Free online favicon generator. Generate multiple sizes of favicons from a single image, ICO/PNG format support. Multi-size output including 16x16, 32x32, 192x192. Browser-based with privacy protection, no installation required.

Free online video editor with trim, cut, merge, filters, text overlay, rotation, and speed adjustment. Supports MP4, WebM, AVI. Browser-based, no uploads, complete privacy. Perfect for YouTube and social media.

Free online PDF editor with page delete/reorder, text/image insertion, annotations, highlights, and form filling. Edit PDFs directly in browser, download results. No installs, complete privacy. Perfect for contracts and documents.