Material UI
Bootstrap
Materialize CSS
Ant Design
Foundation
Chakra UI
Semantic UI
Tailwind CSS
PostalDataPI
Smarty
Melissa Data Quality
PostalDataPI is a global postal code validation and enrichment API covering 240+ countries and territories. One API, one key, one flat rate โ $0.000028 per query with no tiers or subscriptions.
What you get back: Up to 18 metadata fields per postal code โ city, state/region, coordinates, timezone, three levels of administrative hierarchy, elevation, and more. Sub-5ms cached responses.
Works everywhere: US ZIP codes, UK postcodes, German PLZ, Japanese postal codes, Canadian FSAs, and 230+ more. Format normalization handles case, spacing, and hyphen variations automatically.
Get started in 60 seconds: 1,000 free queries on signup, no credit card required. SDKs for Python and Node.js. MCP server for AI agents (Claude, Cursor, etc.).
Built for developers: REST API, consistent JSON responses across all countries, OpenAPI spec, llms.txt for AI agent discovery.
Material UI
PostalDataPIBased on our record, Material UI seems to be more popular. It has been mentiond 76 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Material-UI - React components for faster and easier web development. - Source: dev.to / 6 months ago
Material UI: Component library to style our form input fields. - Source: dev.to / about 3 years ago
These UI components and elements usually include Button, Navbar, Tooltip, Tab components, and more. Many UI libraries exist, including React Bootstrap, built on the popular Bootstrap CSS library, and Material-UI, one of the most popular UI component libraries for React. - Source: dev.to / over 3 years ago
Material UI, the undisputed heavyweight champion on this list, was created according to Googleโs Material Design guidelines. Launched in 2014, it currently has 71K stars, 23.9K forks, 2284 contributors, and 687K users on GitHub, indicating lots of active maintainers and a vibrant community. A large community also means that bugs are fixed faster. - Source: dev.to / almost 4 years ago
I am currently developing a React component that leverages the Material UI Tooltip component. Within my component, I need to manually re-position the Mui Tooltip via the root popper element (MuiTooltip-popper). Source: about 4 years ago
Bootstrap - Simple and flexible HTML, CSS, and JS for popular UI components and interactions
Smarty - Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.
Materialize CSS - A modern responsive front-end framework based on Material Design
Melissa Data Quality - Melissa helps companies to harness Big Data, legacy data, and people data (names, addresses, phone numbers, and emails).
Ant Design - An enterprise-class UI design language and React implementation with a set of high-quality React components, one of best React UI library for enterprises
Foundation - The most advanced responsive front-end framework in the world