number validator

Number Press - Numbering forms, raffles, and documents has never been easier!

HTML/XHTML markup validator.

XML and XHTML checker.

Helps kids to practice problems in addition und subtraction.

Build Creative Equations While Practicing Math Facts

Validate and verify a large amount of emails in a very small about of time.

Open source web conformance tool.

A better calculator.

Find prime numbers.

Number forms, print serial numbers on tickets, receipts.