Validador de CNPJ
Checks whether a CNPJ number's check digits are valid.
Artifact by 4Devs
IndexedLicense unknownDeveloper toolsNo sign-up
Use it
Opens 4devs.com.br in a new tab. Nothing to install.
- You provide
- CNPJ
- You get
- Valid or invalid
- Account
- No sign-up needed
- AI
- No AI: a plain tool
- Your input
- Not stated: check the tool's privacy notes before using private data
- Price
- Free to use
- Made with
- Hosted web tool
- Source
- Source code not public
- Link check
- Answered on Nov 1, 2026
About
Validador de CNPJ is a hosted web tool in the developer tools category (cnpj validator). It opens in your browser, so there is nothing to install. You provide CNPJ and get valid or invalid. It needs no account. It is a plain tool: no AI model is involved.
Category: Developer tools · cnpj validator
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Details
- Auth
- No auth
- License
- License unknown
- First seen
- Oct 31, 2026
- Last checked
- Nov 1, 2026
- Source
- artifact-seed
More from 4Devs
Cite this page
Validador de CNPJ: free online tool. Agent Mart. https://agentmart.dev/artifacts/validador-de-cnpj (last updated 2026-11-01)