Browse our complete collection of 75 free online tools
Calculate percentages quickly and easily. Free online percentage calculator tool.
Calculate tip amount and total bill quickly. Free online tip calculator.
Calculate Body Mass Index (BMI) from weight and height. Health calculator tool.
Calculate age from birthdate. Get exact age in years, months, and days.
Convert between different units of length and weight. Free unit conversion tool.
Format and beautify JSON data with proper indentation. Free online JSON formatter.
Encode text to Base64 format instantly. Free online Base64 encoder tool.
Decode Base64 text to plain text instantly. Free online Base64 decoder tool.
Encode text to URL format. Convert special characters to URL-safe format.
Decode URL encoded text. Convert URL format back to plain text.
Encode text to HTML entities. Convert special characters to HTML-safe format.
Decode HTML entities to plain text. Convert HTML entities back to characters.
Convert temperature between Celsius, Fahrenheit, and Kelvin. Free temperature conversion tool.
Convert numbers between binary, octal, decimal, and hexadecimal. Free base converter tool.
Convert colors between HEX, RGB, and HSL formats. Free color conversion tool.
Convert CSV data to JSON format instantly. Free CSV to JSON converter tool.
Convert Markdown text to HTML format. Free Markdown to HTML converter.
Upload files temporarily. Files are automatically deleted after 1 hour for security and privacy.
Generate strong random passwords with customizable options. Secure password creator.
Generate unique UUIDs (Universally Unique Identifiers). UUID v1 and v4 supported.
Generate random numbers within a specified range. Perfect for games and testing.
Generate Lorem Ipsum placeholder text for design and development.
Remove background from images instantly using AI. Free, easy, and safe. Your files are never saved.
Resize images to any dimensions. Free, fast, and secure. Files are automatically deleted after 1 hour.
Compress images to reduce file size without losing quality. Free and secure. Your files are never stored.
Convert images between JPG, PNG, WEBP, GIF formats. Free, easy, and safe. Files deleted automatically.
Crop images to your desired size. Free and secure. Your privacy is protected.
Rotate images by any angle. Free, easy, and safe. Files are never saved on our servers.
Add text or image watermarks to protect your images. Free and secure.
Apply filters and adjustments to images (brightness, contrast, saturation). Free and safe.
Calculate Body Mass Index and Body Surface Area. Free medical calculator.
Calculate lean body weight using Boer formula. Medical calculator tool.
Calculate ideal body weight using Devine formula. Free medical calculator.
Calculate adjusted body weight for obese patients. Medical dosing calculator.
Calculate estimated Glomerular Filtration Rate using CKD-EPI 2021 formula (race-free).
Calculate eGFR using combined Creatinine-Cystatin C formula (most accurate).
Calculate pediatric GFR using Bedside Schwartz formula.
Calculate creatinine clearance using Cockcroft-Gault formula.
Calculate vancomycin loading and maintenance doses based on weight and eGFR.
Assess acetaminophen toxicity using Rumack-Matthew nomogram.
Calculate IV infusion drip rate. Free medical calculator.
Calculate Alveolar-arterial gradient for respiratory assessment.
Calculate base excess for acid-base balance assessment.
Calculate cardiac output using HR×SV or Fick's method.
Calculate pediatric maintenance fluid using Holliday-Segar formula.
Calculate ABC score for massive transfusion protocol.
Calculate APACHE II score for ICU mortality risk assessment.
Calculate ECABG score for cardiac surgery risk assessment.
Calculate blood alcohol concentration (BAC) using Widmark formula.
Calculate maximum safe dose of local anesthetic for dental procedures.
Determine antibiotic prophylaxis for dental procedures per AHA/ADA guidelines.
Calculate appropriate pain management dosing for dental procedures.
Merge multiple PDFs into one file.
Split a PDF by page ranges.
Reduce PDF file size.
Convert PDF to Word, Excel, PPT, JPG, or HTML.
Add text, images, shapes, numbers, watermarks.
Rotate pages in a PDF.
Delete specific pages from a PDF.
Reorder pages in a PDF.
Secure a PDF with a password.
Unlock a password-protected PDF (requires password).
Redact sensitive information in a PDF.
Run OCR to extract text from scanned PDFs.
Convert PDF to archival PDF/A format.
Compare two PDFs and highlight differences.
Convert any text to uppercase letters instantly. Free online text case converter.
Convert any text to lowercase letters instantly. Free online text case converter.
Count words, characters, lines, and paragraphs in your text. Free online word counter tool.
Reverse any text string instantly. Free online text reverser tool.
Convert text to title case format. Capitalize first letter of each word.
Convert text to sentence case. Capitalize first letter of each sentence.
Remove duplicate lines from text. Clean up your text data instantly.
Remove all whitespace characters from text. Clean text formatting.
Convert text to URL-friendly slug format. Perfect for URLs and filenames.
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