Markdown previewer

Word Counter Count words, characters, sentences, paragraphs, and reading time for essays, posts, resumes, and emails. Random Picker Paste a list and pick a random item. Useful for teams, classrooms, chores, giveaways, and daily decisions. Pomodoro Timer Run repeatable 25-minute focus sessions with short breaks. Designed for studying, writing, and deep work. Daily Habit Tracker Track a few habits locally in your browser and reset each day. No account required. Decision Wheel Add options and spin a simple decision wheel when you need a fast, low-stakes choice. Case Converter Convert text to uppercase, lowercase, title case, sentence case, slug case, and snake case. Password Generator Generate a random password with adjustable length, numbers, symbols, and mixed case. Percentage Calculator Calculate percentages, percentage change, and what percent one number is of another. Age Calculator Calculate age in years, months, and days from a date of birth. Time Calculator Add minutes and hours to a start time, or calculate the duration between two times. Tip Calculator Calculate tip, total bill, and split amount per person. Unit Converter Convert common length and weight units including miles, kilometers, pounds, and kilograms. Text Repeater Repeat text a set number of times with optional line breaks or spaces. PDF Merge Combine multiple PDF files into one PDF in your browser. Files are processed locally and are not uploaded. PDF Split Split a PDF into individual page files directly in your browser without uploading the document. PDF Page Extractor Choose page numbers from a PDF and download a new PDF containing only those pages. PDF Rotate Rotate all pages in a PDF by 90, 180, or 270 degrees and download the updated file. JSON Formatter Format, validate, and minify JSON in your browser for APIs, configs, and debugging. Base64 Converter Encode text to Base64 or decode Base64 back to readable text. URL Encoder Encode or decode URLs, query strings, and text for safe use in web links. Hash Generator Generate SHA-256, SHA-384, or SHA-512 hashes from text in your browser. Timestamp Converter Convert Unix timestamps to readable dates and convert dates back to Unix time. Regex Tester Test a regular expression against sample text and view matches instantly. UUID Generator Generate random UUIDs for development, testing, mock data, and identifiers. Text Diff Checker Compare two text blocks line by line and identify added, removed, and changed lines. Image Resizer Resize JPG, PNG, and WebP images in your browser and download the resized file. Image Compressor Reduce image file size by adjusting quality and exporting a smaller image from your browser. Image to WebP Converter Convert JPG or PNG images to WebP format for smaller web-friendly files. QR Code Generator Generate a QR code for a URL, text, email, phone number, or short message. Invoice Generator Create a simple invoice preview with item totals, tax, and a printable layout. JWT Decoder Decode a JSON Web Token header and payload in your browser without sending it to a server. CSV to JSON Converter Convert simple CSV data into JSON for APIs, spreadsheets, mock data, and developer workflows.