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# A LITTLE ORDER. A LOT LESS WORK.

Different countries.
Different formats.
One clean list.

Turn messy phone numbers into consistent, ready-to-use contacts. Check, format and export your entire list in a few clicks.

Create your free account Try the converter
Your contact files stay in your browser.
A cleaner contact list
YOUR SPREADSHEETONE CONSISTENT FORMAT
041 123 456+38641123456SI
(415) 555-2671+14155552671US
020 7946 0018+442079460018GB
+39 02 3661 8300+390236618300IT
E.164 format Excel & CSV
Your data. On your device.

Formatting happens locally, not on our servers.

International numbering plans Excel & CSV in, clean data out Private by design
FROM SPREADSHEET TO READY

Three steps. Zero manual cleanup.

01

Bring your list

Upload Excel or CSV, or paste a few numbers to start. Your original columns stay intact.

02

Make it consistent

Choose a country and your output format. Review invalid numbers, extensions and duplicates.

03

Take it anywhere

Export the full list or just the rows you need. All ready for your next import.

SIMPLE ACCESS. CLEAR LIMITS.

Start free.
Upgrade when your lists grow.

Every plan keeps processing in your browser. Create an account when you need files, exports and saved defaults; Pro opens the full 20,000-row workflow.

Try

NO ACCOUNT
Freefor a quick check

Preview a small pasted list before signing up.

  • Paste up to 25 numbers
  • Five output formats
  • Validation and duplicate preview
  • No upload or export
Try the converter

Free account

START HERE
€0no card required

Run the core workflow for everyday contact lists.

  • Paste, CSV and Excel input
  • Five output formats
  • Up to 50 rows per file
  • Validation, mapping and exports
  • Saved country and format defaults
Create free account

E164Flow Pro

€7 / MONTH
€7per month

Everything unlocked for larger and repeat imports.

  • Everything in Free account
  • Up to 20,000 rows per file
  • All upload, mapping and export features
  • Full validation and duplicate workflow
  • Paid plan status in your workspace
Start with free access Stripe billing will be connected before paid launch.
GOOD TO KNOW

A little clarity.

Does a valid number mean it is active?

No. E164Flow checks numbering rules and formats. It does not confirm whether a number is active, reachable, or owned by a particular person.

What works without an account?

You can paste up to 25 numbers, choose any output format and review the results. Uploads, exports and saved defaults require a free account.

What does Pro unlock?

Pro includes every converter feature and raises the file limit to 20,000 rows. The paid plan is €7 per month once billing opens.

What happens to my files?

Contact files are processed in your browser and are not uploaded. Your account details and plan are stored separately. Leaving or reloading the converter clears your current list.

Which countries and formats are supported?

E164Flow uses the international numbering metadata in libphonenumber-js. Choose E.164, international, national, digits-only international, or a tel: link. Local numbers need a country.

Can I keep my original columns?

Yes. Your export keeps the imported columns and adds the formatted number, validation details, extensions, and duplicate references.