All Free Online Tools

Search the full library of browser-based utilities for text, code, PDFs, images, SEO, math, and design.

Showing 77 tools

Word Counter Count words, sentences, and paragraphs in any text instantly.
Character Counter Count characters with and without spaces for social media limits.
Case Converter Convert text between uppercase, lowercase, title case, and more.
Lorem Ipsum Generator Generate placeholder text in paragraphs, sentences, or words.
JSON Formatter Format, validate, and beautify JSON data with syntax errors.
URL Encoder/Decoder Encode or decode URLs and query strings for safe transmission.
Base64 Encoder/Decoder Encode text to Base64 or decode Base64 strings back to text.
Percentage Calculator Calculate percentages, percentage change, and what percent X is of Y.
Age Calculator Calculate your exact age from date of birth in years, months, days, hours, and more.
BMI Calculator Calculate your Body Mass Index and see where you fall on the BMI scale.
Tip Calculator Calculate the tip amount and split the bill among any number of people.
Date Difference Calculator Calculate the exact number of days, months, and years between two dates.
Number to Words Convert any number to its English word representation (e.g., 123 → one hundred twenty-three).
QR Code Generator Generate downloadable QR codes from any URL or text.
Color Converter Convert colors between HEX, RGB, and HSL formats instantly.
HTML Formatter Format, beautify, and minify your HTML code instantly.
Regex Tester Test your regular expressions in real-time with syntax highlighting.
Markdown to HTML Convert Markdown syntax to clean, valid HTML markup.
CSV to JSON Convert CSV spreadsheets or tables to structured JSON data.
Image Compressor Compress and resize PNG, JPEG, and WebP images client-side.
PDF Merger Combine multiple PDF files into a single document instantly.
PDF Splitter Split a PDF file into individual pages or page ranges.
PDF Compressor Reduce PDF file size by compressing images and content.
PDF to Text Extract and copy text content from PDF files.
PDF to Images Convert PDF pages to high-quality PNG or JPEG images.
Image Cropper Crop any image to custom dimensions or preset aspect ratios.
Image Resizer Resize images to exact dimensions while maintaining quality.
Image Format Converter Convert images between PNG, JPEG, WebP, and other formats.
Image Filter Apply filters like grayscale, sepia, blur, and invert to images.
Image to Base64 Convert any image to a Base64 encoded data URI string.
Password Generator Generate strong, secure passwords with customizable options.
Hash Generator Generate MD5, SHA-1, SHA-256, and SHA-512 hashes of any text.
UUID Generator Generate random UUIDs (v4) for databases, APIs, and testing.
Text Diff Checker Compare two texts side-by-side and highlight differences.
URL Slug Generator Convert any text to a clean, URL-friendly slug.
Text Summarizer Summarize long articles and paragraphs into concise key points.
Password Strength Checker Generate strong passwords and check password strength with detailed analysis.
Text Analyzer Analyze text with word count, character count, case conversion, and reading stats.
Meta Tag Generator Generate SEO meta tags including title, description, and Open Graph tags.
Keyword Density Checker Analyze keyword frequency and density in any text content.
Sitemap Generator Generate XML sitemaps for your website from a list of URLs.
Robots.txt Generator Create robots.txt files to control search engine crawling.
Open Graph Preview Generator Generate and preview Open Graph meta tags for social media sharing.
SEO Length Checker Check if your title tags and meta descriptions meet recommended length limits.
Canonical Tag Generator Generate canonical link tags to prevent duplicate content issues.
Alt Text Checker Analyze HTML content for missing or empty image alt attributes.
Color Contrast Checker Check WCAG contrast ratios between foreground and background colors.
Unit Converter Convert between units of length, weight, temperature, speed, and more.
JSON to CSV Convert JSON arrays and objects to CSV spreadsheet format.
YAML to JSON Convert YAML configuration files to JSON format instantly.
Temperature Converter Convert temperatures between Celsius, Fahrenheit, and Kelvin.
Lbs to Kg Converter Convert pounds to kilograms and kilograms to pounds instantly.
Loan Calculator Calculate monthly payments, total interest, and amortization for any loan.
Discount Calculator Calculate sale prices, savings, and discount percentages instantly.
Mortgage Calculator Estimate monthly mortgage payments with taxes, insurance, and PMI.
CSS Minifier Minify and compress CSS code to reduce file size for production.
HTML Entity Converter Encode and decode HTML entities like & < > and special characters.
Binary Converter Convert numbers between binary, decimal, hexadecimal, and octal.
Text Humanizer Rewrite AI-generated text to sound more natural and human-like.
Grammar Checker Check text for common grammar issues, punctuation, and spelling errors.
Palindrome Checker Check if a word, phrase, or number reads the same forward and backward.
Reverse Text Reverse text, words, or individual characters in your text.
Text Similarity Checker Compare two texts and find similarity percentage with matching phrase highlights.
Readability Score Checker Check readability scores like Flesch-Kincaid and Gunning Fog.
Word Cloud Generator Generate a visual word cloud from any text online.
JWT Decoder Decode JWT tokens and inspect header and payload.
SQL Formatter Format and beautify SQL queries online.
HTML to Markdown Converter Convert HTML to clean Markdown format online.
JSON to XML Converter Convert JSON data to structured XML format online.
SERP Preview Generator Preview how your page looks in Google search results.
Heading Structure Checker Analyze heading hierarchy (H1-H6) from HTML content.
Schema Markup Generator Generate JSON-LD schema markup for your web pages.
Color Palette Generator Generate harmonious color palettes for your designs.
Gradient Generator Create CSS gradients with a visual preview.
Border Radius Generator Generate CSS border-radius values with a visual preview.
Epoch Timestamp Converter Convert Unix timestamps to human-readable dates and vice versa.
Random Number Generator Generate random numbers, dice rolls, and lottery numbers.