Free WhatsApp & contact tools
Small utilities for the fiddly parts of working with phone numbers — building WhatsApp links, cleaning up formatting, stripping duplicates and getting numbers into Google Contacts. All free, no sign-up.
Nothing you paste leaves your browser. Every tool here runs entirely on your device — there is no upload, no logging and no server processing your numbers.
WhatsApp Link GeneratorTurn a phone number into a wa.me link that opens a WhatsApp chat — with an optional message already typed for them.Open toolBulk WhatsApp Link GeneratorPaste a whole list of numbers and get a click-to-chat link for each one, ready to copy or download.Open toolCSV to Google Contacts ConverterTurn a messy CSV or a plain list of numbers into a file Google Contacts will import cleanly.Open toolPhone Number FormatterClean up a messy list of numbers into proper international format, and see which ones look wrong.Open toolDuplicate Phone Number RemoverStrip duplicates from a list of numbers — matching across formats, so the same number written two ways counts once.Open tool
Saving WhatsApp numbers by hand is the part worth automating
These tools help with lists you already have. The LeadSync Chrome extension handles where those lists come from — it reads the numbers visible on WhatsApp Web and saves them straight into Google Contacts, skipping any you already have. Free for your first 35 contacts.