Your daily helper tools.
Private. Secure. Completely Free.
SuperUtility is a premium collection of 50+ simple, fast, and completely private helper tools for your everyday tasks. From advanced image editors and PDF manipulation to digital unit converters and secure randomizers, everything runs entirely inside your browser's local sandbox memory. This guarantees that your private files, passwords, and data never touch any external server.
All tools are 100% free to use with absolutely no paywalls, subscriptions, premium limitations, or registration requirements.
Password Generator
Secure random strings and memorable passphrases.
QR Code Generator
Generate high-resolution PNG and vector QR graphics.
UUID Generator
RFC 4122 v1 and v4 compliant unique bulk identifiers.
Hash Generator
MD5, SHA-1, SHA-256 and SHA-512 browser digest hashes.
Random Picker
Raffle sweeps to pick winners from customizable lists.
Number Generator
Sortable, secure ranges for integer or decimal values.
Word Counter
Real-time statistics for words, characters, and reading time.
Case Converter
Instantly switch text casing (UPPER, lower, Title Case, etc).
Text Line Tools
Repeat text sequences, remove duplicates, and sort lines.
URL & Base64 Encoder
Securely encode and decode web URLs and Base64 format strings.
JSON Formatter
Format, minify, validate, and parse JSON syntax structure.
JWT Decoder
Decode JWT header and payload details locally in real-time.
Unix Timestamp
Convert Unix epoch timestamps to calendar dates and vice-versa.
Regex Tester
Test JavaScript regular expressions with match and group captures.
HTML Converter
Convert text to HTML entities or decode them safely.
URL Parser
Parse URL strings into query parameters and path components.
Color Converter
Convert colors between HEX, RGB, and HSL dynamically.
Lorem Ipsum
Generate placeholder lorem ipsum text of any custom length.
Slug Generator
Instantly create clean, SEO-friendly alphanumeric URL slugs.
CSS Minifier
Compress CSS stylesheets by stripping comments and whitespace.
JavaScript Minifier
Compress Javascript script blocks by stripping spaces and comments.
Text Diff Checker
Compare text blocks side-by-side or inline to spot line changes.
Password Strength
Calculate password entropy, complexity, and offline crack times.
Bcrypt Hash & Verify
Generate secure Bcrypt hashes or verify matching strings locally.
HMAC Generator
Produce secure keyed message digests locally in real-time.
Random String
Generate bulk secure randomized tokens and key salts.
Percentage Calc
Compute ratios, target percentages, and rate differences.
Age Calculator
Calculate calendar ages, birth milestones, and zodiac signs.
EMI & Loan Calc
Compute installment EMI costs and view amortization schedules.
GST Calculator
Calculate inclusive/exclusive GST and intra-state CGST/SGST splits.
Discount & Profit
Track sales markup, gross margins, and markdown discount rates.
Currency Converter
Convert currencies offline with preloaded exchange base rates.
Image to Base64
Locally encode PNG, JPG, or WEBP graphics into base64 URI strings.
Image Editor (All-in-One)
Compress, resize, crop, rotate, flip, and convert multiple images in a unified dashboard.
Background Remover
Erase backgrounds, isolate hair details, and add bokeh blurs and halos offline.
Color Picker
Zoom sample image pixel coordinates and copy colors in HEX, RGB, or HSL.
All-in-One PDF Suite
Merge, split, rotate, watermark, encrypt, and extract PDF pages locally.
PDF Security Scanner
Scan PDF binary elements to detect hidden JavaScript and suspicious launch payloads.
Document Scanner
Capture paper documents, apply monochrome filters, and export clean PDF pages.
Height & Length
Convert millimeters, centimeters, meters, kilometers, inches, feet, yards, and miles.
Weight & Mass
Convert weights instantly between kilograms, grams, pounds, ounces, and stones.
Area Converter
Convert area values instantly between square meters, feet, acres, and hectares.
Volume Converter
Convert liquid and solid volumes between milliliters, liters, cups, and gallons.
Temperature
Convert temperature values instantly between Celsius, Fahrenheit, and Kelvin.
Speed & Velocity
Convert speed values between meters per second, km/h, mph, knots, and Mach.
Data & Storage
Convert size values between bits, Bytes, Kilobytes, Megabytes, and Gigabytes.
Frequently Asked Questions (FAQ)
Is my private information safe here?
Yes, absolutely! SuperUtility runs entirely inside your web browser. None of your passwords, files, or text inputs are ever sent to a server, saved online, or shared with anyone. Everything stays 100% private on your own device.
How are passwords and random keys generated?
We use highly secure, device-level random generation (using your browser's built-in cryptographic engine). This ensures that every password or unique key (UUID) you generate is completely random, fair, and virtually impossible to guess.
Can I use this app without an internet connection?
Yes! Once you open the website, the tools are saved directly in your browser. You can turn off your internet or Wi-Fi completely, and all the tools (like the password, QR, and hash generators) will still work perfectly offline.
Are the random picks and numbers truly fair?
Yes, they are 100% fair. We use advanced, balanced mathematical algorithms (like the Fisher-Yates shuffle) to make sure every random picker item or random number has an exactly equal chance of being chosen, with zero bias or repeating patterns.