Turn a messy CSV or a plain list of numbers into a file Google Contacts will import cleanly.
Everything runs in your browser. The numbers you paste are never uploaded, logged or stored — there is no server involved in this tool at all. Free, with no sign-up.
Works with an export from any contact tool, a spreadsheet copy-paste, or a bare list of numbers one per line.
Used only for numbers that arrive without a country code.
Numbered automatically — Lead 001, Lead 002, and so on.
Google Contacts will only import a CSV laid out the way it expects. Paste any CSV — or just a list of numbers — and this builds that file for you: correct headers, numbers normalised to international format, duplicates within the file removed, and a name generated for any row that has none.
Google offers to label everything you just imported. Accept it — that label is what lets you undo the whole batch in one action if the result is not what you wanted.
Most WhatsApp contact-saver extensions hand you a CSV, and then this conversion and import becomes your problem. That middle step is avoidable.
The LeadSync Chrome extension writes straight into Google Contacts through the official Google People API — no file, no import, no format juggling. It also checks your existing contacts first, so it will not create the duplicates a CSV import can. Free for your first 35 contacts.
Clean a messy list first with the phone number formatter, or remove repeats with the duplicate number remover.
Go to contacts.google.com, open the left menu, choose Import, select the CSV this tool produced, and confirm. Google reads the column headers automatically. Tip: label the batch on import so you can undo it in one step if something looks wrong.
Google reads its own header names — Name, Given Name, Family Name, Phone 1 - Type and Phone 1 - Value are the ones that matter for a name-and-number import. This tool writes exactly those, so you do not have to rename anything.
Yes. Set the name column to "None" and each contact is named from your prefix with an incrementing number — Lead 001, Lead 002, and so on. That keeps them easy to find and delete as a group later.
The tool removes duplicates within the file you paste, but it cannot see what is already in your Google account, so a number you already have would be imported again. Google Contacts has a built-in Merge & fix feature for cleaning that up afterwards.
No. Parsing and file generation happen entirely in your browser, and the download is created locally from memory. Your contact list never reaches a server.
No. The parser handles quoted fields containing commas and escaped quotes, which is what usually breaks simpler converters on real exports.
Once they are in Google Contacts, they sync to any Android phone signed into that account, and to an iPhone that has the Google account added with Contacts enabled.
LeadSync
Save up to 35 contacts, 100% free.