OpenGeocoding API alternatives
Forward and reverse geocoding and address autocomplete on open data. If it doesn't fit your project, here are the 10 best free Geocoding APIs to use instead in 2026, out of 117 in the directory.
For reference, OpenGeocoding API: 100% uptime (30 days) · Callable from the browser (CORS) · HTTPS.
- 1

SLF API
Online · 285 msGerman city, country, river, database.
- No API key needed
- 100% uptime (30 days)
- Fast: 285 ms response
- Callable from the browser (CORS)
No authHTTPSCORS - 2
17NAS API
Online · 1147 msFree IP geolocation API with IPv4/IPv6 detection, ASN and country info, no auth required.
- No API key needed
- 100% uptime (30 days)
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 3

administrative-divisons-db API
Online · 452 msGet all administrative divisions of a country.
- No API key needed
- 100% uptime (30 days)
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 4
ipapi.co API
Online · 951 msFind IP address location information.
- No API key needed
- 100% uptime (30 days)
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 5
IPKit API
Online · 752 msIP lookup with location, ASN/ISP and VPN/proxy/Tor signals.
- No API key needed
- 100% uptime (30 days)
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 6
Moradas API
Online · 1060 msPortuguese address autocomplete and 7-digit postal codes (CP7).
- No API key needed
- 100% uptime (30 days)
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 7

PostalCodeCheck API
Online · 1038 msCity, region and coordinates for 887,000+ postal codes across 95 countries.
- No API key needed
- 100% uptime (30 days)
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 8
Postali API
Online · 1147 msMexico Zip Codes API. A free geocoding API by Postali.
- No API key needed
- 100% uptime (30 days)
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 9
Postcodes.io API
Online · 982 msPostcode lookup & Geolocation for the UK.
- No API key needed
- 100% uptime (30 days)
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 10

REST Countries API
Online · 1157 msGet information about countries via a RESTful API.
- No API key needed
- 100% uptime (30 days)
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
OpenGeocoding API vs alternatives
| API | API key | HTTPS | CORS | Uptime | Response | Rating |
|---|---|---|---|---|---|---|
| Required | Yes | Yes | 100% | 1370 ms | Not rated | |
| No | Yes | Yes | 100% | 285 ms | Not rated | |
| No | Yes | Yes | 100% | 1147 ms | Not rated | |
| No | Yes | Yes | 100% | 452 ms | Not rated | |
| No | Yes | Yes | 100% | 951 ms | Not rated | |
| No | Yes | Yes | 100% | 752 ms | Not rated | |
| No | Yes | Yes | 100% | 1060 ms | Not rated | |
| No | Yes | Yes | 100% | 1038 ms | Not rated | |
| No | Yes | Yes | 100% | 1147 ms | Not rated |
See also: best Geocoding APIs · all Geocoding APIs
OpenGeocoding API alternatives FAQ
What is the best free alternative to the OpenGeocoding API in 2026?
The top-ranked free alternatives to the OpenGeocoding API are SLF API, 17NAS API and administrative-divisons-db API, all in the Geocoding category. Rankings combine access (API key, HTTPS, CORS), daily uptime checks and developer ratings.
Is there a OpenGeocoding API alternative that doesn't need an API key?
Yes: SLF API, 17NAS API and administrative-divisons-db API work without an API key, unlike the OpenGeocoding API, which uses apiKey authentication.
How many Geocoding APIs are similar to the OpenGeocoding API?
The directory lists 109 other free Geocoding APIs. This page compares the top ones side by side.