Messy contacts in, clean list out

Paste or drop a CSV of contacts. Tell it which columns are phone numbers and addresses (it guesses first, you confirm). Get back a consistently formatted copy — country-code-aware phone formatting and normalized addresses. Rows it can't confidently parse are flagged, not silently mangled.

Your CSV (paste it — or drop the file anywhere on this page)

Phone column

Address columns (multi-select)

Phone region

Your CSV is parsed and formatted by JavaScript on this page — there is no upload, no API, no server, and nothing about your contacts is stored or sent. Save the page and it keeps working offline. The paid download adds the desktop app with Google-Contacts-style deduplication, international address parsing for 40+ countries and vCard export.

What is this page?

This is the real Address & Phone Formatter — the same tool Untracked sells as a download — running free, right here in your browser. Everything is processed entirely on your own device: nothing is uploaded, no account is needed, and the page makes no network requests after it loads. You can verify that yourself: load the page, open your browser's network inspector, or even disconnect from the internet and keep using it.

Free page vs. the €4.50 download

Here (free): paste a list of any size — phone formatting, address normalization and flagged rows included, forever.

The download (€4.50, once): the same formatter as a single HTML file you own — contact deduplication, international address parsing for 40+ countries and vCard export. Plus the commercial-use licence. Full details →

Questions people ask

What happens to rows it can't parse?

They're flagged with a 'check phone' marker and left exactly as they were — never silently mangled. You fix just those rows by hand.

Which phone regions are covered?

US/Canada (+1), Netherlands (+31), Germany (+49) and UK (+44), including stripping an existing country code before reformatting. Numbers with extensions get flagged rather than guessed.

How does it know which columns are phones or addresses?

It guesses from the column names (phone/tel/mobile, address/street/city…) and pre-selects them — you confirm or change before formatting.

What does the paid version add?

A desktop app with contact deduplication, international address parsing for 40+ countries and vCard export.