No login or Blacktel number needed

Free phone & eSIM tools

Check numbers, plan travel data, estimate costs and solve common phone questions. No account needed.

Numbers

Phone number checker & formatter

Get international, national and E.164 formats for your number.

SMS & verification

Count GSM-7 or Unicode units and check your message before sending.

SMS & verification

Create a click-to-chat link and downloadable QR for an existing WhatsApp account.

Travel & eSIM

Estimate a travel data budget from your days, apps and hotspot use.

Numbers

See cached identity and address guidance by country, number type and customer type.

Travel & eSIM

Find your model and check regional support and carrier locking.

Calls & business

Estimate rental, calls, forwarding and SMS with published Blacktel prices.

Calls & business

Check your sound, record a short sample and listen before a browser call.

SMS & verification

Get the next steps for missing SMS and voice verification codes.

Calls & business

Create a personal or business greeting in 12 languages, then copy or download the text.