Labs and
tools.
Code examples and tools for everyday use.
01
SOLID in practice
Five principles, with before and after examples.
02Image lab
Resize and convert images without uploading your files.
03QR Code generator
Create codes for links, text, contacts and Wi-Fi.
04Contrast lab
Compare colours, text size and contrast criteria.
05Queue simulator
See how workers and failures affect a queue.
06Weather
Check the forecast for eight cities.
07Currency converter
Convert between BRL, USD and EUR.
08Digital contact card
Create a card with a QR Code to keep on your phone.
09JSON comparison
See what changed between two versions.
10Time zone converter
Compare the same date across time zones.
11Responsive images and icons
Generate sizes for websites, social posts and icons.
12Accessible palettes
Find shades with readable text colours.