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JsonWhois.io

Freemium#25 of 27 in WHOIS Lookup Tools

JsonWhois.io: A focused JSON API for live WHOIS and related domain intelligence calls. Ranked #25 of 27 in WHOIS Lookup Tools by our editors (5.7/10); pricing: Free plan; best for lightweight JSON WHOIS API calls.

5.7/10Editor score

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JsonWhois.io5.7 Visit JsonWhois.io

At a glance

Editor score
5.7 / 10
Pricing
Free plan
Best for
Lightweight JSON WHOIS API calls
Free plan
Yes
API access
Full
Facts checked
22 Sep 2026

Where it wins
- Free monthly Domain WHOIS and IP WHOIS allowances
- Authenticated REST requests return JSON-formatted responses
- Includes availability, geolocation, and webpage screenshot APIs
Where it doesn't
- No historical WHOIS data
- No RDAP support
- No bulk lookup capability

Our verdict on JsonWhois.io

JsonWhois.io provides REST APIs for live domain WHOIS, IP WHOIS, domain availability, IP geolocation, and webpage screenshots. It is designed for developers and applications that need domain intelligence or related lookup functions without handling WHOIS protocol differences and server rate limits directly. The API platform supports authenticated HTTP requests and JSON-formatted responses, making it suitable for lightweight integrations rather than a browser-based research workflow.

Pricing is usage-based and varies by API and monthly volume. The service has a free plan, including 250 monthly Domain WHOIS and IP WHOIS calls, with different allowances for other services. Paid usage begins at 0.001, while the published pricing model remains pay-as-you-go rather than a set of named subscription tiers. API access is listed as full, and usage can be reviewed through browsable API logs. This structure fits applications with variable lookup demand, especially when a monthly allowance covers initial or limited usage.

The broader API set adds domain availability checks, IP geolocation, and webpage screenshots alongside WHOIS lookups. API-key IP whitelisting provides an additional access-control option for integrations. JsonWhois.io is a focused choice for live, programmatic lookups and related endpoint access, but it is not suited to workflows requiring historical WHOIS records, RDAP support, or bulk lookup. Teams that need those capabilities should choose a WHOIS platform built around historical, standards-based, or high-volume research. For developers seeking lightweight JSON calls with usage-based pricing, JsonWhois.io is the more direct fit.

Your product? Our editors can test JsonWhois.io in depth and publish a review, labelled as paid · from $149/mo →

JsonWhois.io pricing

Plans Free planFreemium A usable free plan; paid tiers unlock the limits above. Prices checked 22 Sep 2026.

See plans on jsonwhois.io

JsonWhois.io fact sheet

Free plan	Yes
Paid from	Not verified
API access	Full
Bulk lookup	No
Historical WHOIS	No
RDAP support	No
Monthly lookup limit	Not verified
Export formats	Not verified
Deployment	Cloud
Support	Tickets, Docs
Built for	Solo, Small business, Mid-market (editorial estimate)
Pricing	Free plan
Website	jsonwhois.io
Facts checked	22 Sep 2026

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Featured on iTechGuides

JsonWhois.io is listed in our WHOIS Lookup Tools directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update