Very Fast. Very Simple.
Tools that get the job done, without getting in your way.
QR codes, PDFs, converters and calculators that run entirely on your device. No sign-up, no uploads, no waiting.
Nothing leaves your device
Every tool processes your data locally, in the browser. Files and text are never sent to a server.
Instant, every time
No loading spinners for a round trip to the cloud. Results appear as you type.
Works offline-friendly
Once a page has loaded, most tools keep working even with a flaky connection.
PIX QR Code Generator
Create a Brazilian PIX copy-and-paste QR code in seconds.
Wi-Fi QR Code Generator
Generate a QR code so guests join your network without typing a password.
WhatsApp Link & QR Code Generator
Create a wa.me link with a pre-filled message and a QR code for your WhatsApp.
Image Compressor & WebP Converter
Convert PNG and JPG to WebP and shrink file size right in your browser.
CPF/CNPJ Generator & Validator
Generate valid CPF and CNPJ numbers for testing, or validate an existing one.
Character & Word Counter
Count characters, words, sentences and reading time in real time.
PDF Receipt Generator
Fill a simple form and download a ready-to-send PDF receipt.
Percentage & Discount Calculator
Calculate percentage of a value, percentage change, and discounted price.
JSON Formatter & Validator
Format, minify and validate JSON with an exact error location.
Lorem Ipsum Generator
Generate placeholder paragraphs, words or lists of dummy text.
Strong Password Generator
Generate secure random passwords and see the estimated time to crack them.
Case Converter
Convert text to UPPERCASE, lowercase, Title Case, camelCase and more.
Image Resizer & Crop
Change width and height in pixels or percentage and crop photos to standard ratios.
QR Code Scanner / Reader
Upload a QR code image or use your camera to extract the encoded link or text.
HTML Email Signature Generator
Build an elegant email signature and copy ready-to-use HTML for Gmail or Outlook.
Work Hours & Time Bank Calculator
Calculate daily worked hours, the weekly total and your time bank balance.
Base64 Encoder & Decoder
Convert text and images to Base64, and decode Base64 back to text or images.
UTM Campaign URL Builder
Add utm_source, utm_medium and utm_campaign parameters to any URL.
BMI Calculator
Calculate your Body Mass Index from height and weight in seconds.
Hash Generator (MD5/SHA-1/SHA-256)
Generate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes from any text.
UUID / GUID Generator
Generate one or many random UUID v4 values, with or without hyphens.
Age Calculator
Calculate exact age in years, months and days from a birth date.
Regex Tester
Test regular expressions with real-time highlighted matches and capture groups.
Vacation & 13th Salary Calculator
Calculate net vacation pay and 13th salary for Brazilian labor law, with tax estimates.
Color Palette Generator
Generate random, analogous or complementary color palettes with HEX, RGB and HSL.
Random Picker
Draw random names from a list or random numbers within a range.
Unit Converter
Convert length, weight and temperature units instantly.
URL Encoder / Decoder
Encode or decode URLs and query string components instantly.
Business Days Calculator
Count business days between two dates, excluding weekends and national holidays.
Resume / CV PDF Generator
Fill a form and download a professional resume PDF ready to send.
QR Code Generator
Turn any text, link or message into a downloadable PNG or SVG QR code.
Compound Interest Calculator
Simulate how an initial amount and monthly contributions grow over time with compound interest.
Currency Converter
Convert between US Dollar, Euro, Real and other currencies with daily updated rates.
Date Calculator
Add or subtract days, weeks, months or years from a date, or find the difference between two dates.
Online Stopwatch & Timer
A stopwatch with lap tracking and a countdown timer, right in your browser.
Time Zone Converter
See and convert a time between cities around the world, accounting for daylight saving time.
Tip Calculator
Calculate the tip amount and split the bill between any number of people.
Net Salary Calculator (Brazil CLT)
Calculate your net salary from the gross amount, with estimated Brazilian payroll taxes.
CLT Termination Calculator (Brazil)
Estimate the total termination payout under Brazilian labor law.
Countdown Timer to a Date
Create a live countdown to birthdays, trips, deadlines and holidays.
Number Base Converter
Convert numbers between binary, octal, decimal and hexadecimal instantly.
Random Username Generator
Generate creative usernames and gamer tags for social media, games or email.
Pregnancy Due Date Calculator
Estimate the due date and current gestational week from the last period.
Fuel Consumption Calculator
Calculate your car's fuel efficiency and compare ethanol against gasoline.
Running Pace Calculator
Calculate running pace, time or distance and see race predictions for 5K, 10K and marathon.
Calorie Calculator (BMR & TDEE)
Calculate your Basal Metabolic Rate and daily calorie needs to maintain, lose or gain weight.
Water Intake Calculator
Find out how much water you should drink per day based on your weight, exercise and the weather.
Sleep Cycle Calculator
Find the best times to go to bed or wake up based on 90-minute sleep cycles.
Grade Average Calculator
Calculate the simple or weighted average of your grades and check if you are passing.
LCM and GCD Calculator
Calculate the Least Common Multiple and Greatest Common Divisor of two or more numbers.
Rule of Three Calculator
Solve direct and inverse rule of three (cross-multiplication) problems instantly.
CSS Gradient Generator
Build linear or radial CSS gradients visually and copy the ready-to-use CSS code.
Color Contrast Checker (WCAG)
Check the WCAG contrast ratio between a text color and a background color for AA and AAA accessibility.
Markdown to HTML Converter
Convert Markdown to clean HTML instantly, with a live preview, right in your browser.
Coin Flip — Heads or Tails
Flip a virtual coin online to make quick decisions, with a running history of your flips.
Dice Roller Online
Roll one or more virtual dice with 4, 6, 8, 10, 12, 20 or 100 sides for board games and RPGs.
Love Calculator
A playful love compatibility calculator based on two names, for entertainment purposes only.
Loan & Financing Calculator
Calculate the fixed monthly payment, total interest and total paid for a loan or financing.
Savings Goal Calculator
Find out how many months it takes to reach a savings goal with monthly contributions and interest.
Salary Raise Calculator
Calculate your new salary after a raise and see your real gain once inflation is factored in.
Instagram Engagement Rate Calculator
Calculate your Instagram engagement rate from followers, likes and comments.
Hashtag Generator
Generate a ready-to-copy set of hashtags based on a keyword and a niche.
YouTube Earnings Estimator
Estimate how much a channel can earn from ads based on monthly views and RPM.
Zodiac Sign Calculator
Find your Western zodiac sign, element and traits from your birth date.
Numerology Calculator
Calculate your numerology life path number from your birth date.
Chinese Zodiac Calculator
Find your Chinese zodiac animal and element from your birth year.
Meta Tag Generator (SEO & Open Graph)
Generate SEO, Open Graph and Twitter Card meta tags and copy ready-to-use HTML.
Slug / Friendly URL Generator
Turn any title into a clean, SEO-friendly URL slug.
Robots.txt Generator
Create a robots.txt file controlling which pages search engine crawlers can access.
Text Diff Checker
Compare two blocks of text side by side and see everything added or removed in red and green.
Morse Code & Binary Translator
Convert text to Morse code or binary (and back) instantly.
Table to Markdown Converter
Paste data from Excel or Google Sheets and generate a formatted table for GitHub or Notion.