About CodeToolsHub

CodeToolsHub.dev is a free suite of developer tools built around one idea: generating realistic, format-valid, but entirely fictional data so developers can build and test software without ever touching real personal information. It covers Brazilian, US, and global data, plus everyday dev utilities.

What it's for

Seeding databases, building demos and prototypes, testing forms and validation, writing automated tests, and feeding AI agents with structured sample payloads. Every value is fictional yet correctly formatted — CPF/CNPJ and RG check digits, SSN-like values, valid CEP/ZIP, phone DDDs and area codes — so your validation passes without exposing a real person.

What's inside

Brazilian generators — people, companies, CPF, CNPJ, and more.
US & global generators — people, addresses, and identifiers.
Commerce & mock data — products, orders, and payloads.
Dev utilities — UUID, JSON, JWT, Base64, timestamps, and more.
A public REST API and an MCP server so agents and scripts can use the same generators.

Who's behind it

CodeToolsHub is built and maintained by an independent developer who spends a lot of time seeding databases and testing forms, and got tired of doing it by hand or risking real data. The goal is a fast, free, no-signup toolkit that respects your privacy.

Privacy & fictional data

Generation runs locally in your browser — we don't look up, store, or sell real personal data, and generated output is not kept on our servers. Everything produced is fictional and intended for development, testing, QA, prototyping, and automation only. It must not be used for fraud, identity theft, or any illegal activity.

Get in touch

Questions, feedback, or a bug to report? Visit our contact page.