Free phone tools
International dialing codes, calling rates, number formats, time zones, toll-free checks and more. All free in your browser, no account needed.
Free to use · No account for tools · First call is free
All tools
All tools are free to use. They securely run in your browser.
International Dialing Code Finder
Find a country calling code, see the time difference, and format a local number for international dialing.
Country calling codes • Local time • Number format
Find a dialing codeUS & Canada Area Code Lookup
Enter an area code to see its city, state or province, time zone, and local time. Includes the full list by state.
City and state • Time zone • Local time
Look up an area codeInternational Calling Rates Calculator
See the per-minute rate for a country and estimate what a call will cost before you dial.
Per-minute rate • Call cost • Minutes for $5 / $10 / $20
Estimate call costBrowser Call Quality Test
Check your microphone, speakers, and browser when people can’t hear you on a web call. Nothing is uploaded.
Live mic meter • Speaker beep • Browser check
Test mic & speakersPhone Number Timezone Checker
See local time for a phone number’s country, the difference from you, and whether it’s a good hour to call.
Live local time • Time difference • Call window
Check timezoneUS Toll-Free Number Checker
Check US 1-800 / 888 / 877… numbers, confirm the toll-free prefix, and see the rate for calling from abroad.
800-833 prefixes • E.164 format • US rate
Check a toll-free numberPhone Number Validator & Formatter
Paste a phone number to check the format and get international, E.164, and national versions.
Valid / invalid • E.164 • National format • Number type
Validate a phone numberBulk Phone Number Cleaner
Paste or upload messy phone lists. Convert to E.164, flag bad rows, remove duplicates, and download a clean CSV.
E.164 • Deduplicate • CSV export • Browser-only
Clean a phone listPhone Number Generator
Create random mobile numbers that pass format checks, for demos and form testing, not real contacts.
By country • E.164 • Test data only
Generate a phone numberGlobCall Chrome Extension
Right-click a phone number on any website and call it from Chrome. Mobiles and landlines in 200+ countries.
Right-click to call • Phone beside the page • From $0.02/min
Get the extensionAbout these free phone tools
Use them to find a country calling code, put a number in E.164 format, check a rough calling rate, see the local time somewhere, or fix a mic that isn’t working on a browser call.
Travelers, remote teams and support agents use them every day, and so does anyone tidying up a contact list.
How the tools work
Free to use
No account needed. You only sign up if you want to make a call.
Runs in your browser
Everything works on the page. Your phone lists and mic tests stay on your device.
Useful before you dial
Check the code, the number format, the rate and the local time before you call abroad.
Guides and related pages
Rates by country, dialing steps, and calling a 1-800 from abroad.
International calling rates
Per-minute rates for mobiles and landlines by country.
View calling rates →How to call internationally
Country calling codes, number format, and calling from a browser.
Read the guide →Call a US 1-800 from abroad
Why carriers block toll-free lines overseas, and what still works.
Read the walkthrough →Frequently asked questions
What can I do with these free phone tools?
You can look up international dialing codes, estimate calling rates, check phone number format, see local time for a number, check US toll-free prefixes, clean a phone list, test your mic and speakers, and generate test numbers. Everything runs in your browser.
What is an international dialing code?
It’s the country calling code you add before a local number when dialing from another country. For example, +44 for the UK or +91 for India. Use the Dialing Code Finder to look one up.
What is E.164 phone number format?
E.164 is the standard international format: a + sign, the country calling code, and the national number with no spaces or brackets. Example: +442079460018.
Are these tools free?
Yes. You can use every tool on this page for free without creating an account. If you later place a call through GlobCall, you only pay for the minutes you use. See calling rates.
Can a phone number validator tell me if a number is active?
No. The phone number validator only checks whether the number matches the country’s known numbering rules. It cannot confirm the number is in use or who owns it.
Can I call after I look something up?
Yes. If GlobCall supports the destination, you can open the dialer from your browser and place the call. The person you call does not need an app. They get a normal phone call.