Free Online Utilities Tools
Free online utility tools — QR generators, password tools, calculators, and more. All browser-based with no account needed.
QR Code Generator
Generate QR codes for any text or URL with custom size, foreground, and background colors.
QR Code Scanner
Scan QR codes using your device camera or by uploading an image — uses jsQR in your browser.
Barcode Generator
Generate barcodes in CODE128, EAN13, EAN8, UPC, CODE39, ITF14, and more — download as SVG.
Password Generator
Generate strong random passwords with custom length and character sets — strength indicator included.
Random Number Generator
Generate random integers within a custom min/max range — with optional no-duplicates mode.
Coin Flip & Dice Roller
Flip a virtual coin or roll up to 20 dice with d4, d6, d8, d10, d12, d20, or d100 sides.
Color Palette Generator
Generate 5-color palettes using monochromatic, analogous, complementary, triadic, or rainbow harmony.
CSS Gradient Generator
Generate linear or radial CSS gradients with unlimited color stops — copy the CSS property instantly.
Placeholder Image Generator
Generate placeholder images at any size with custom colors and label — download as PNG.
Invoice Number Generator
Generate sequential invoice numbers with custom prefix, separator, year/month, and zero-padded sequence.
Password Strength Checker
Analyse a password's entropy, estimated crack time, and common pattern detection — never transmitted.
Email Validator
Validate email address format with a detailed checklist — format check only, not deliverability.
Credit Card Validator / Generator
Luhn algorithm validation and TEST number generation — not real cards, for development only.
IBAN Validator
Validate IBAN numbers using the MOD-97 checksum algorithm and country-specific length rules.
VAT / Tax ID Format Validator
Validate EU and UK VAT number formats by country — format check only, not registration status.
Duplicate File Finder
Upload multiple files, compute SHA-256 hashes via Web Crypto API, and flag exact duplicates.
IP Address Lookup
Look up geolocation and ISP info for any IP address using ip-api.com — requires internet connection.
Phone Number Format Validator
Validate phone number formats by country — format check only, not carrier verification.
Postal / ZIP Code Validator
Validate postal and ZIP code formats for 21 countries including UK, US, Canada, and EU.
Broken Link Checker
Check a list of URLs for reachability — note: most results will show CORS restrictions, not real status.
Time Duration Calculator
Add or subtract multiple hours:minutes:seconds durations — supports negative results.
Work Days Calculator
Count business days between two dates, excluding weekends and optional custom holidays.
Countdown Timer Generator
Create a live countdown to any event with a shareable link that encodes the date in the URL.
Stopwatch / Timer Tool
Stopwatch with lap tracking and a separate countdown timer mode — pure client-side.
Random Name Generator
Generate realistic people names, business names, or usernames from curated word lists.
Random Address Generator
Generates plausible-format but entirely fake test addresses - clearly labelled as fictional test data only.
Fake Data Generator
Generate JSON test data with configurable fields and record count for developer testing.
Business Name Generator
Combine industry keywords and name pattern templates to generate business name ideas.
Slogan / Tagline Generator
Template-based combination of adjective, action, and benefit word banks to generate tagline ideas.
Nickname Generator
Input a name and generate playful nickname variations using shortening, suffixes, and substitutions.
Random Team Picker / Group Shuffler
Paste a list of names, specify number of groups, and randomly shuffle into balanced teams.
Random Decision Maker
Yes/No flip mode and a customizable spinner-wheel mode with Canvas-based animation.
Bracket Generator
Input participant names, generate a single-elimination tournament bracket, click to advance winners.
Raffle / Giveaway Winner Picker
Paste a list of entries, pick N winners with animated fair-random selection, exclude duplicates option.
Business Card QR Generator
Fill in contact details, generate a vCard 3.0 QR code that adds a contact when scanned.
WiFi QR Code Generator
Input SSID, password, and security type to generate a QR code that auto-connects devices to WiFi.