Self-hosting is free forever — clone the repo, deploy it yourself, no fees, no limits from us. The hosted cloud (mydevtools.tech) is a paid service.

What is the difference between self-hosting and MyDevTools Cloud?

Self-hosting is the same codebase running on your own infrastructure — you own the data and pay nothing to us. MyDevTools Cloud is our managed service; it is a paid subscription that covers hosting, sync, and backups.

Sensitive data is encrypted in your browser before it reaches the server where supported. The server stores encrypted blobs for vault-style data instead of readable plaintext.

Do I need an account to use the tools?

Google Sign-In is required to save your data across sessions. Many public tool pages can be explored before opening the full app experience.

Is this truly open source?

Yes. Full source code is available on GitHub under the GPL-3.0 license. You can audit, contribute, fork, or self-host it.

Does it work offline?

Many tools are fully client-side and can work without server processing. Tools that connect to external services, sync data, or send API requests need a network connection.

Does Whois Lookup store or upload my data?

Whois Lookup is designed for browser-based use. Many MyDevTools utilities process data locally; tools that require sync or external connections may send only the data needed for that workflow.

Do I need to install anything to use Whois Lookup?

No installation required. Whois Lookup runs directly in your web browser — just open the link and start using it.

Network & API

Free Whois Lookup OnlineWhois Lookup on MyDevTools

Look up WHOIS/RDAP registration data for a domain or IP address, showing the registrar, domain status, creation/update/expiry dates with relative age, nameservers, contacts, and the full raw RDAP JSON. Uses the RDAP protocol via a backend proxy.

Use Whois Lookup Browse All Tools

About Whois Lookup

Look up registration details for any domain or IP address using RDAP: registrar, status, key dates, nameservers, and contacts. Runs entirely in your browser — no installation, no account required to try it.

Common Whois Lookup use cases

Use Whois Lookup when you need a fast, browser-based way to work with whois lookup. It is useful during API debugging, code reviews, documentation cleanup, test data preparation, and quick checks on a new machine where you do not want to install a desktop app. Because MyDevTools keeps related utilities together, you can move from Whois Lookup into nearby tools like formatters, converters, generators, encoders, decoders, and API helpers without leaving the same toolkit.

Example workflow

A typical workflow starts by pasting or typing your input into Whois Lookup. Review the result, copy the cleaned or generated output, then continue with a related task such as validating a payload, decoding a token, parsing a URL, generating an identifier, or testing an API request. This makes Whois Lookup part of a practical developer workflow instead of a one-off utility page.

Key Features

Whois Lookup supports whois lookup workflows for quick browser-based developer tasks.
Whois Lookup supports rdap lookup workflows for quick browser-based developer tasks.
Whois Lookup supports domain whois workflows for quick browser-based developer tasks.
Whois Lookup supports ip whois workflows for quick browser-based developer tasks.
Whois Lookup supports domain registration workflows for quick browser-based developer tasks.
Whois Lookup supports nameserver lookup workflows for quick browser-based developer tasks.
Whois Lookup supports domain expiry check workflows for quick browser-based developer tasks.
Runs in your browser — no install
Free to use, always

Whois Lookup FAQ

Is Whois Lookup free to use?

Yes. Whois Lookup is available through MyDevTools with a public landing page and browser-based app experience.

Do I need to install anything for Whois Lookup?

No. Whois Lookup runs in a web browser, so you can open it from any modern device without installing a desktop utility.

What is Whois Lookup best for?

What should I use with Whois Lookup?

Most developers pair Whois Lookup with related MyDevTools utilities such as formatters, parsers, encoders, generators, API tools, and security helpers.

How to Use Whois Lookup

01
Open the tool
Click "Use Whois Lookup Free" above — no download or account required.
02
Enter your data
Paste or type your input directly in the browser. Processing happens locally on your device.
03
Copy the result
Get your output instantly. Copy it, download it, or keep working in the same tab.

Open Whois Lookup

Related Network & API Tools

API ClientTest and debug HTTP requests with headers, body, and auth support. A lightweight Postman alternative in your browser.HTTP Status Codes ReferenceSearch and browse HTTP status codes (1xx–5xx) with short descriptions and RFC references.IP / Subnet CalculatorCompute IPv4 and IPv6 CIDR details: netmask, wildcard, broadcast, first and last host, and subnet size. Runs locally in your browser.MIME Type LookupLook up MIME types by file extension or filename and copy the result instantly. Runs entirely in your browser.User-Agent ParserPaste a User-Agent string to see browser, OS, engine, device, and CPU breakdown instantly. Runs entirely in your browser.cURL to CodeConvert a curl command into ready-to-run request code for fetch, axios, Python, Go, PHP, Ruby, Java, and C#.Webhook TesterCreate a temporary webhook URL, then capture and inspect incoming HTTP requests live — method, headers, query params, and body.WebSocket TesterConnect to any ws:// or wss:// endpoint, send and receive messages, pretty-print JSON, and auto-ping — all in your browser.

View all Network & API tools