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1Password
Team Password Manager
Psono Password Manager
Dashlane
Keeper
KeeWeb
Spectre is a web application to diff screenshots.
Smarty
Zipcodestack
PostalDataPI
Geoco.io
Melissa Data Quality
Loqate
usZIPCodes.org
REST API for US ZIP, ZIP+4, and Canadian postal codes. Single unified endpoint covers address validation and standardization, radius search (centroid haversine and true spatial polygon intersection), point-to-point distance, autocomplete/typeah
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Website, pricing, platforms and company facts side by side.
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ZIP
ZIP Code API
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| Website | github.com | zip-codes.com |
| Pricing | — | |
| Company | — | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of Spectre yet.
API for US ZIP, ZIP+4, and Canadian postal code data. One unified endpoint set covers North America — no separate APIs by country or data type. What it does Address validation and standardization — production-grade parser with ZIP+4 append, refreshed monthly Radius search — centroid haversine and...
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Spectre.css is recommended for developers who prefer a lightweight framework and are focusing on performance, simplicity, and clean aesthetics in their web projects. It's ideal for those who want to avoid unnecessary bloat and need a foundation that's easy to customize and extend according to their needs.
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Spectre is a modern, free and responsive CSS framework. It offers elegant elements, flexbox-based responsive layout system and CSS components and utilities, that can be modified with Sass and Scss compiler. It is...
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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