Free Online Tools · 30+ Utilities · 100% Browser-Based
QR codes, word counter, password generator, image compressor, JSON formatter, and more. No upload, no login, no tracking. Your data never leaves your browser.
Core Tools
P0 · 6 tools Most popular utilitiesQR Code Generator
Generate QR codes for URLs, text, WiFi, email, phone numbers. Download as PNG or SVG, customizable size and colors.
Word Counter
Count words, characters, sentences, paragraphs, and reading time in real-time. Perfect for essays, blog posts, and SEO.
Password Generator
Generate strong, secure random passwords. Customize length, include symbols, numbers, uppercase. All generated locally.
Image Compressor
Compress JPG, PNG, and WebP images locally in your browser. No upload, no quality loss visible to the eye.
Base64 Encoder/Decoder
Encode text or files to Base64, and decode Base64 back to text or binary. Supports UTF-8 and file download.
JSON Formatter & Validator
Format, beautify, minify, and validate JSON. Syntax highlighting, error detection, and tree view. All local.
Common Tools
P1 · 17 tools Daily use favoritesImage Resizer
Resize images to any dimensions. Maintain aspect ratio, batch resize, custom width/height. All processed locally.
URL Encoder/Decoder
Encode URLs to percent-encoding format and decode back. Handles UTF-8, query parameters, and special characters.
Color Converter
Convert between HEX, RGB, HSL, and HSV color formats. Live preview with color picker. Copy any format instantly.
Case Converter
Convert text to UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case, and more. Instant conversion.
UUID Generator
Generate UUID v4 (random) identifiers. Batch generate, copy, and export. RFC 4122 compliant, cryptographically secure.
Hash Generator
Generate SHA-1, SHA-256, SHA-384, SHA-512 hashes and MD5. Web Crypto API, all processing local and secure.
Markdown Preview
Write Markdown and see live HTML preview. Supports headings, lists, code blocks, tables, links, and images.
HTML Encoder/Decoder
Encode HTML entities and decode them back. Convert <, >, & to <, >, & and vice versa.
CSS Minifier
Minify CSS by removing whitespace, comments, and redundant characters. Reduce file size for faster page loads.
Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa. Supports seconds and milliseconds, local and UTC.
Text Reverser
Reverse text character by character, word by word, or line by line. Multiple reversal modes for different needs.
Lorem Ipsum Generator
Generate Lorem Ipsum placeholder text by paragraphs, sentences, or words. Perfect for mockups and design layouts.
Random Number Generator
Generate random numbers within a range. Pick unique numbers, generate lottery numbers, or roll dice. All local.
Percentage Calculator
Calculate percentages, percentage change, increase/decrease, and more. Solve common percentage problems instantly.
BMI Calculator
Calculate Body Mass Index (BMI) from height and weight. Supports metric and imperial units. Instant health assessment.
Unit Converter
Convert between length, weight, temperature, area, volume, speed, and data units. Fast, accurate, all local.
Age Calculator
Calculate exact age in years, months, days, hours, and minutes. Find the time between any two dates.
Extended Tools
P2 · 7 tools Specialized utilitiesImage Format Converter
Convert between JPG, PNG, WebP, and BMP formats. Batch conversion with quality control. All in-browser.
WebP Converter
Convert images to and from WebP format. Modern format with superior compression and transparency support.
URL Slug Generator
Generate SEO-friendly URL slugs from any text. Removes special characters, converts to lowercase, uses hyphens.
CSV to JSON Converter
Convert CSV data to JSON format and vice versa. Handles headers, quoted fields, and nested data structures.
JavaScript Minifier
Minify JavaScript code by removing whitespace, comments, and unnecessary characters. Reduce file size for production.
Text Diff Checker
Compare two text blocks and highlight differences line by line. See additions, deletions, and changes instantly.
Countdown Timer
Set a countdown timer for any duration. Visual countdown with sound alert. Works offline, no login needed.
About HyperGrad Tools
HyperGrad Tools is a collection of 30 free online utilities for everyday tasks—QR code generation, word counting, password creation, image compression, JSON formatting, unit conversion, and much more. Unlike most online tool sites, every tool here runs entirely in your browser. Your data is never uploaded to any server.
Why 100% Client-Side Matters
- Privacy: Your text, images, and files never leave your device. Safe for sensitive data.
- Speed: No network round-trips. Every operation is instant.
- Offline: Once loaded, tools work without an internet connection.
- Free Forever: No accounts, no paywalls, no limits. Supported by ads.
Tool Categories
- Text Tools: Word counter, case converter, text reverser, markdown preview, text diff
- Developer Tools: JSON formatter, CSS/JS minifier, UUID generator, slug generator, timestamp converter
- Image Tools: Image compressor, resizer, format converter, WebP converter
- Converters: Base64, URL, HTML encoders, color converter, CSV to JSON, unit converter
- Calculators: Percentage, BMI, age, countdown timer
- Generators: QR code, password, UUID, lorem ipsum, random number
- Security Tools: Password generator, hash generator
Part of the HyperGrad Ecosystem
HyperGrad Tools belongs to the same ecosystem as HyperGrad Image (specialized image tools), HyperGrad DevTools (developer utilities), and DeepSeal (local encrypted notes app). All products share the same core philosophy: local processing, privacy first, data never leaves your device.