Software Alternatives & Startups

Zipcodestack

Free Zip Code API - Free Postal Code Validation | Zipcodestack.

Zipcodestack

Zipcodestack Alternatives & Competitors

  1. 2

    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.

    Key ZIP Code API features:

    Comprehensive ZIP Code Data Multiple Lookup Options Easy Integration Distance and Radius Calculations

    /zip-code-api-alternatives
  2. 1

    Check water quality, product recalls, energy rebates, and safety alerts for any U.S. ZIP code. Free reports powered by EPA and government data.

    Key ZipCheckup features:

    Simple ZIP-code lookup Fast, easy to understand results Likely based on public data Free to access (probably)

    Open Source

    /zipcheckup-alternatives
  3. Automated AI security testing for agents, chatbots, and APIs. Find prompt injection, data leaks, and unsafe behavior before launch.

    Key PromptBrake features:

    AI Security Testing Supported Targets CI Release Gates Self-Hosted Execution

    Try for free paid Free Trial $499 / Monthly (Enterprise: 30 scans, 1 active runner license) Sponsored

    Try for free
  4. 1

    Postal code lookup API and downloadable country datasets for address validation, checkout, logistics and geocoding workflows.

    Key PostalCodes.info features:

    Global Coverage Simple REST API Geolocation Data Lightweight Responses

    /postalcodes-info-alternatives
  5. 1

    Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.

    Key Smarty features:

    Affordability Flexible Plans No Credit Check Unlimited Calls and Texts

    Open Source freemium

    /smarty-alternatives
  6. 1

    A geoparser, geocoder and batch geocoder for the world. Map your data.

    Key Geocode.xyz features:

    Free API Access Batch Geocoding Multiple Output Formats Worldwide Coverage

    freemium €20 (pay per use)

    /geocode-xyz-alternatives
  7. 1

    ridiculously cheap bulk geocoding turn US street addresses into map coordinates and map coordinates into street addresses using our straightforward REST API.

    Key Geoco.io features:

    Accuracy Cost-Effective Batch Processing Versatility

    /geoco-io-alternatives
  8. 1

    A simple API for finding UK postal addresses.

    Key getAddress.io features:

    Comprehensive Address Database Easy Integration Cost-Effective Postal Code Lookup

    /getaddress-io-alternatives
  9. 2

    Use our free ZIP Code Analysis Tool to find city, state, county, population, and timezone details for any U.S. ZIP code. Fast, accurate, and privacy-safe lookup.

    Key usZIPCodes.org features:

    Instant lookup Comprehensive details No registration Mobile friendly

    free

    /zip-code-analysis-tool-alternatives
  10. 1

    Street addresses for places that don't have one 🗺️.

    Key Plus Codes by Google features:

    Accessibility Universality Offline Functionality Integration with Google Maps

    Open Source

    /plus-codes-by-google-alternatives
  11. 1

    The Standard in Global Address Verification.

    Key Loqate features:

    Global Coverage Accuracy Data Enrichment Easy Integration

    /loqate-alternatives
  12. 1

    Location data and map-related APIs: Geocoding, Geosearch, Point of Interest, Nearby Places and Routes API.

    /position-lab-alternatives
  13. 1

    Custom RSS Feeds for Releases of your favorite Software.

    Key Versionfeeds features:

    Real-time Updates Comprehensive Coverage User-Friendly Interface Notifications and Alerts

    /versionfeeds-alternatives
  14. 1

    Autonomous agent designed for comprehensive online research.

    Key tavily features:

    Ease of Use Comprehensive Features Personalization Integration with Travel Services

    Open Source

    /tavily-alternatives
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