IconVault's Phone Parser normalizes messy phone numbers into clean, standard formats. Paste numbers one per line and it detects the country from the dial code, then outputs E.164 (like +919876543210), international and national formats for each number in a simple results table, with trunk prefixes restored where the local format needs them.

It is free and runs fully in your browser with a built-in table of 70+ country dial codes, so nothing is uploaded. The honest caveat: this is best-effort parsing, not a full libphonenumber port, so it cannot validate area codes or number lengths per country. Always verify critical numbers before using them in production systems.