🪐 Validators

IPFS CID Format Validator

Verify IPFS CID format v0 (Qm...) and v1 multibase, returning codec, multihash, digest size, and version.

CID (Content Identifier)

CIDv0: Qm... (base58, 46 chars). CIDv1: multibase prefix (b=base32, z=base58btc, m=base64) + multicodec + multihash.

Related Tools

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CPF Validator

Validate Brazilian CPF numbers instantly using the official algorithm. Useful for testing document validation in applications. No data sent to servers.

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Batch CPF Validator

Validate a list of CPFs (one per line) and see which are valid and which are not. No data sent to servers.

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Batch CNPJ Validator

Validate a list of CNPJs (one per line) with a summary of valid, invalid and total. No data sent to servers.