Blog
Quick guides, tutorials, and explainers on our generators.
Brazil's Alphanumeric CNPJ: What Changes in July 2026 (and How to Generate Test Data)
From July 2026, Brazil's company tax ID (CNPJ) will include letters. Learn the new format, how the check digit changes, and generate valid CNPJs to test your systems.
Jun 04, 20264 minbr
How to Generate a Valid CPF for Testing (Without Using Real Data)
Need valid CPFs to test forms and systems? Learn how the CPF check digit works and generate valid numbers for development and QA, safely and privately.
Jun 04, 20263 minbr
How to Create a Stylish Free Fire Nickname (Symbols, Fonts & Invisible Space)
Learn to create stylish Free Fire nicknames with fancy fonts, symbols, and the famous invisible space — and generate yours within the 12-character limit.
Jun 04, 20264 mingaming