About A Helpful Website
A Helpful Website is a collection of free, fast, and private online tools that run entirely in your browser. Our mission is simple: provide useful web tools that respect your privacy, work on any device, and never cost a cent.
Our image tools use the HTML5 Canvas API to process photos locally on your computer, while our text, developer, and security tools run entirely in JavaScript. Your data is never uploaded to any server, stored in any database, or seen by any third party. When you close the page, no trace of your work remains.
Why We Built This
Most free online tool sites require you to upload your files or data to their servers, which raises legitimate privacy concerns. Others bombard you with ads, limit how many times you can use them, or require sign-ups. We believe useful online tools should be private, unlimited, and available to everyone.
By building all tools as client-side JavaScript applications, we eliminated the need for servers entirely. The result is a site that is fast, secure, and free to operate - which means it will stay free for you forever.
Our Tools
Image Tools
Image Resizer
Resize your images to any dimensions. Perfect for social media, web uploads, or printing.
Open Image Resizer →Image Converter
Convert images between PNG, JPEG, and WebP formats. Fast and lossless conversion in your browser.
Open Image Converter →Image Compressor
Reduce your image file sizes while keeping good quality. Great for faster website loading.
Open Image Compressor →Color Palette Extractor
Extract dominant colors from any image and get their exact hex codes for your design projects.
Open Color Palette →Color Replacer
Replace a specific color in your image with another. Great for changing backgrounds, recoloring objects, or fixing color mistakes.
Open Color Replacer →Image Cropper
Crop images to any rectangular region. Remove unwanted edges, focus on a subject, or prepare photos for social media aspect ratios.
Open Image Cropper →Text Tools
Text Case Converter
Convert text to uppercase, lowercase, title case, sentence case, camelCase, snake_case, kebab-case, and more. Instant results in your browser.
Open Case Converter →Word Counter
Count words, characters, sentences, and paragraphs. Get reading time estimates and keyword density analysis for any text.
Open Word Counter →Text Diff
Compare two versions of a text and see the differences instantly. Added and removed lines are highlighted for easy review.
Open Text Diff →Lorem Ipsum Generator
Generate Lorem Ipsum placeholder text for designs, prototypes, and layouts. Choose paragraphs, sentences, or words.
Open Lorem Ipsum Generator →Random Picker & List Randomizer
Pick a random item from a list, shuffle entries, or draw multiple random picks. Great for giveaways, decisions, and study groups.
Open List Randomizer →Developer Tools
JSON Formatter & Validator
Format, validate, and pretty-print JSON instantly. Beautify messy API responses, minify for production, and catch syntax errors.
Open JSON Formatter →Base64 Encoder & Decoder
Encode text and files to Base64, or decode Base64 back to text. Supports URL-safe encoding and file-to-data-URI conversion.
Open Base64 Encoder →URL Encoder & Decoder
Encode text to URL-safe percent-encoded format, or decode percent-encoded strings back to plain text. Supports component and full-URL modes.
Open URL Encoder →HTML Entity Encoder & Decoder
Encode special characters to HTML entities for safe use in web pages, or decode entities back to plain text. Supports named and numeric modes.
Open HTML Entity Encoder →UUID Generator
Generate random UUID v4 identifiers instantly. Bulk generate up to 100 UUIDs. Uses cryptographically secure randomness.
Open UUID Generator →Color Converter
Convert colors between HEX, RGB, and HSL formats instantly. Type any value and all other fields update automatically.
Open Color Converter →Markdown Editor
Write and preview Markdown in real time with live HTML rendering. Perfect for documentation, blog posts, and readme files.
Open Markdown Editor →Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa. See the current epoch time update live.
Open Timestamp Converter →Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal instantly. Type any value and all other fields update automatically.
Open Number Base Converter →Random Number Generator
Generate cryptographically secure random numbers. Set any range, choose integers or decimals, and generate single or multiple numbers.
Open Random Number Generator →Date Duration Calculator
Calculate the exact number of days, weeks, months, and years between any two dates. Great for planning events and tracking deadlines.
Open Date Calculator →QR Code Generator
Generate scannable QR codes from any text or URL instantly. Choose error correction level and module size for your use case.
Open QR Code Generator →Unit Converter
Convert units of length, weight, temperature, area, volume, speed, time, and data size instantly. Type one value, see every unit at once.
Open Unit Converter →Percentage Calculator
Calculate percentages instantly: X% of Y, what percent X is of Y, and percent increase or decrease between two values.
Open Percentage Calculator →Age Calculator
Calculate your exact age in years, months, and days from your date of birth, plus total days old and days until your next birthday.
Open Age Calculator →Security Tools
Password Generator
Generate strong, secure, random passwords instantly. Customize length and character types. Perfect for creating uncrackable credentials.
Open Password Generator →Hash Generator & File Checksum
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes for text and files. Verify downloads and check file integrity instantly.
Open Hash Generator →Contact Us
Have a suggestion, question, or bug report? Visit our Contact page to get in touch. We welcome feedback from our users.