PRIVATE BY DESIGN
Calculations happen on your device. We don't collect your inputs or require an account.
FREE • PRIVATE • PLANET-FRIENDLY
SMALL TOOLS.
SMARTER IMPACT.
Fast, thoughtful utilities for everyday decisions.
No accounts. No tracking. Just useful answers.
EXPLORE ALL TOOLS ↓10 TOOLS • 100% FREE
// TOOL DIRECTORY
CHOOSE YOUR INSTRUMENT
Every tool runs right in your browser.
Your data stays on your device.
01
QR Code Generator
Create crisp, downloadable QR codes for links, text and contact details.
CREATE ↗02
Unit Converter
Convert length, weight and temperature without sending data anywhere.
CONVERT ↗03
Percentage Calculator
Work out percentages, changes, increases and decreases in seconds.
CALCULATE ↗04
BMI Calculator
Get a quick body mass index estimate with a clear category guide.
CHECK ↗05
Carbon Footprint
Estimate annual travel and home energy emissions, then find reductions.
ESTIMATE ↗06
Energy Cost
See what appliances cost to run and how much energy they consume.
CALCULATE ↗07
Date Difference
Count exact days and approximate calendar time between two dates.
COUNT ↗08
Password Strength
Test password resilience locally with practical improvement tips.
TEST ↗09
Text Metrics
Count words, characters, sentences and estimated reading time live.
ANALYSE ↗010
Color Converter
Translate HEX, RGB and HSL colours and preview accessible palettes.
EXPLORE ↗LESS NOISE.
MORE SIGNAL.
LIGHTWEIGHT WEB
No autoplay video or bloated tracking stack. A faster page is better for you and the planet.
USEFUL, ALWAYS
Clear explanations turn quick results into knowledge you can use again and again.