Lightweight JavaScript Autocomplete for Input Fields – Suggestify.js
A lightweight JavaScript plugin for adding intelligent autocomplete functionality to input fields with keyboard navigation and array inputs support.
Form
Treeselect JS: Tree Select & Multi-Select Dropdown in Vanilla JavaScript
A user-friendly multi select JS library that allows the user to select single or multiple options from a tree-style hierarchical dropdown list.
crd-ui.js: Animated Credit Card Preview UI for Payment Forms
Add a live card preview to payment forms with crd-ui, including CVC flips, brand detection, CSS variables, and six card finishes.
Customizable Select Box & Input Field Enhancement Library – Choices.js
Choices.js is a vanilla JavaScript plugin for creating customizable select inputs with multi select and autocomplete support.
Auto Fill Form Fields With Random Or Specific Values – Autofill.js
A tiny JavaScript library allows you to autofill form fields (text boxes, checkboxes, radio buttons, select boxes, etc) with either specific values or random values of your choice.
High Performance Select Box with Virtual Scroll (Vanilla JS) – Virtual Select
A high-performance, Material Design style select box replacement that supports single/multiple select, virtual scrolling (for larger data lists), live search, and dynamic data rendering.
Animated AI Model & Reasoning Effort Selector – Model Picker
Create a compact AI model picker with three model rows, five effort levels, an Ultra lever, and a native change event.
Claude-Style Effort Slider Web Component – Claude Model Selector
Add an effort picker to any dashboard with Claude Model Selector, a custom element with magnetic drag, level labels, and an animated top tier.
Vanilla JS Country Dropdown with Flag Icons & Phone Codes – CountrySelect Pro
A vanilla JS country selector with flag icons, phone codes, real-time search, and Bootstrap 5 support. Under 4KB, zero dependencies.
Lightweight Input Masking for Web Devs – Masky.js
An ultra-lightweight input masking library for web developers. Enhance form UX with automatic validation and formatting.