google-libphonenumber

What it is

google-libphonenumber is a library that provides utilities for parsing, formatting, storing, and validating international phone numbers. It's essential for applications needing to handle global phone number data accurately.

google-libphonenumber offers comprehensive and accurate phone number handling capabilities, making it a reliable choice for developers working with international phone numbers.

When it fits — and when it doesn’t

Known weaknesses

Each one links to the public issue, changelog or docs page it came from, where we have one.

1. 01

   Limited language support outside of Java

   Primary implementation is in Java, and while there are ports for other languages like Python and JavaScript, they may not have the same level of functionality or be as well-maintained.

2. 02

   Complex setup for non-Java environments

   Integrating google-libphonenumber into projects that are not Java-based can require additional configuration and dependencies, which may introduce complexity and potential issues with version compatibility.

3. 03

   Performance overhead due to large data files

   The library relies on extensive metadata for phone number validation across countries, which can increase memory usage and slow down applications when handling a high volume of requests.

4. 04

   Potential for outdated country-specific rules

   Phone numbering plans change frequently, and while google-libphonenumber is regularly updated, there may be delays in incorporating the latest changes from various countries.

What it does well

• Parse phone numbers into their constituent parts

• Format phone numbers in various styles (e.g., national, international)

• Validate phone numbers against country-specific rules

• Support for multiple languages and regions

Pricing

Free tier

YesOpen source — free to use

Paid from

$0

Model

Flat rate

Enterprise plan

No

Pricing not independently confirmed — check the vendor’s page.