Just one link per motivation. One problem, one way to solve it.
- Form
- Validation parsleyjs.org
- Input masking nosir.github.io/cleave.js
- Custom select box select2.github.io
- File upload fineuploader.com
- BR states as option tags
- BR postal code API github.com/filipedeschamps/cep-promise
- UI/UX
- Slideshow / Carousel kenwheeler.github.io/slick
- Autocomplete twitter.github.io/typeahead.js
- Range slider refreshless.com/nouislider
- Knob anthonyterrien.com/knob
- Copy to clipboard clipboardjs.com
- Modal / Alert izimodal.marcelodolce.com
- Toast / Notification izitoast.marcelodolce.com
- Date & Time
- Manipulation momentjs.com
- Picker eonasdan.github.io/bootstrap-datetimepicker
- CSS
- clearfix nicolasgallagher.com/micro-clearfix-hack
- CSS arrows cssarrowplease.com
- CSS gradients colorzilla.com/gradient-editor
- Loaders / Spinners projects.lukehaas.me/css-loaders
- Animations
- Animate on Scroll github.com/michalsnik/aos
- Hover Effects ianlunn.github.io/Hover
- Engine anime-js.com
- Optimization
- Image compression kraken.io
I'm open to discuss alternatives. Just file an issue.