Free tools all in one place. No signup. Just results.
Calculate your Body Mass Index (BMI) with instant results, ideal weight ranges, and body fat estimates. Perfect for fitness enthusiasts tracking their health metrics.
Calculate your daily calorie needs using BMR (Basal Metabolic Rate) and TDEE (Total Daily Energy Expenditure). Perfect for meal planning, weight management, and fitness goals.
Generate random selections from your list of items. Perfect for picking party activities, choosing dinner options, deciding what to watch, or making any random choice from a list.
Calculate tips and split bills instantly. Perfect for restaurants, bars, and group outings. Supports custom tip percentages and bill splitting.
Calculate your Grade Point Average (GPA) with support for 4.0 and 4.3 grading scales, weighted and unweighted GPAs. Perfect for students tracking their academic performance.
Count words, characters, sentences, and paragraphs in your text instantly. Perfect for essays, articles, social media posts, and any writing project with character limits.
Generate citations in APA, MLA, and Chicago styles instantly. Perfect for research papers, essays, and academic writing. Supports books, articles, websites, and more.
Boost your study sessions with the Pomodoro Technique. Work for 25 minutes, take a 5-minute break, and repeat. After 4 sessions, enjoy a longer 15-minute break. Perfect for maintaining focus and productivity.
Create and study with interactive flashcards. Add titles and descriptions, flip cards to reveal answers, and track your progress by marking cards as memorized. Perfect for vocabulary, definitions, formulas, and quick recall practice.
Generate random drawing references with slot machine-style randomness. Get instant combinations of objects and backgrounds to spark your creativity and practice drawing.
Pick colors and convert between HEX, RGB, and HSL color formats instantly. Perfect for design work, CSS development, and color manipulation.
Generate beautiful color palettes instantly. Create random harmonious palettes, monochromatic schemes, or complementary color combinations. Perfect for design inspiration and color schemes.
Instantly encode text to Base64 or decode Base64 strings back to plain text. Perfect for encoding data, working with APIs, or debugging.
Decode and inspect JSON Web Tokens (JWT) to view the header, payload, and signature. Perfect for debugging authentication tokens and understanding token structure.
Convert between JSON and YAML formats instantly. Perfect for configuration files, API documentation, and data transformation. Supports bidirectional conversion with syntax validation.
Generate secure, random passwords with customizable length and character types. Perfect for creating strong passwords for accounts, API keys, and security tokens.
Encode text to URL-encoded format or decode URL-encoded strings instantly. Perfect for encoding URL parameters, query strings, and handling special characters in URLs.
Generate QR codes from text, URLs, or any data instantly. Perfect for sharing links, contact information, WiFi passwords, and more. Download as PNG image.
Generate UUIDs (Universally Unique Identifiers) instantly. Perfect for database IDs, unique identifiers, API keys, and development work.
Convert text between different case formats instantly. Supports lowercase, uppercase, title case, sentence case, camelCase, PascalCase, snake_case, kebab-case, and CONSTANT_CASE.
Convert between Unix epoch timestamps and human-readable dates instantly. Perfect for debugging, API development, and working with timestamps in various formats.
Generate cryptographic hashes (MD5, SHA-256, SHA-512) from text instantly. Perfect for data integrity checks, password hashing references, and cryptographic operations.
Test and debug regular expressions instantly. Enter a regex pattern and sample text to see matches, groups, and results in real-time. Perfect for learning regex and validating patterns.
Preview markdown formatting in real-time. Write markdown text and see the rendered HTML output instantly. Perfect for writing README files, documentation, and formatted text.