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Search 14 free online tools, or paste a phone number, JSON, a color or a timestamp. We recognise it, show the answer and point you to the right tool. All in your browser.

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New tool Phone Number Validator +44 20 7946 0958ValidUnited Kingdom · Fixed line
Works with
  • E.164
  • International
  • National
  • RFC 3966
  • tel: links
  • wa.me links
  • CSV export
  • JSON
  • Regex

Categories

Everything in one place.

Every tool lives in the category of the job it does, so the one you need is always two clicks away.

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14 tools Phone & ContactValidate, parse and format phone numbers for every country. +33 1 42 68 53 00ValidFranceFixed lineE.164+33142685300National01 42 68 53 00

Featured tool

Phone Number Validator

Check a single number or a list of 2,000. See the country and line type, then copy it as E.164, international, national or a tel: link.

Regions
245
Formats
4
Uploads
0
Open the validator More phone tools

Powered by libphonenumber-js 1.13.15, a port of Google's libphonenumber.

Private by default

Your data stays on your device

The tools run inside the browser tab you already have open. There is no upload step, so there is nothing to wait for and nothing to leak.

Your browser
01You pasteA number, a file or some text
02The tool runs hereUsing an open-source library
03You copy the resultOr download it as a file
Our serversNot involved in processing your input
Nothing uploaded

What you type or paste is processed in your browser and never sent to us.

Real libraries

Each tool wraps a trusted open-source library, so results match your own code.

Free, no account

Open a tool and use it. There is no sign-up form in the way.

FAQ

Questions, answered

Short answers about how Online Playground works.

Are the tools free?

Yes. Every tool is free to use and there is no account to create.

Do you upload what I paste?

No. The search box on this page and the live tools run in your browser. Anything you paste is processed on your device and is not sent to a server.

Which tools are live today?

14 tools are live today, all built on libphonenumber-js: the validator, formatter, E.164 converter, parser, bulk validator and more. New tools are published only when they are finished and useful.

What is a library playground?

A tool page built on an open-source library, so you can try the library in your browser and get the same result you would get in your own code.

Your next tool is one search away.

14 tools across 1 categories. New tools are added when they are ready, never as empty pages.

Browse the directory