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Crypto address validator

Paste a Bitcoin or Ethereum address and get a real verdict: the actual checksum is verified — Base58Check for legacy addresses, Bech32/Bech32m for SegWit and Taproot, EIP-55 for Ethereum — so a single mistyped character is caught, not just a wrong length. It reports the address type and network, and runs entirely in your browser.

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Open Crypto address validator and you get an answer straight away, with no account to create. It covers the actual checksum is verified — Base58Check for legacy addresses, Bech32/Bech32m for SegWit and Taproot, EIP-55 for Ethereum — so a single mistyped character is caught, not just a wrong length. It reports the address type and network, and runs entirely in your browser — adjust any of them and the result follows immediately.

How to use it

  1. Open the tool — no signup or install needed.
  2. Enter your input or adjust the available options.
  3. Get your result instantly, then copy or download it.

Frequently asked questions

What does Crypto address validator do?

Paste a Bitcoin or Ethereum address and get a real verdict: the actual checksum is verified — Base58Check for legacy addresses, Bech32/Bech32m for SegWit and Taproot, EIP-55 for Ethereum — so a single mistyped character is caught, not just a wrong length. It reports the address type and network, and runs entirely in your browser.

What does it take into account?

It factors in the actual checksum is verified — Base58Check for legacy addresses, Bech32/Bech32m for SegWit and Taproot, EIP-55 for Ethereum — so a single mistyped character is caught, not just a wrong length. It reports the address type and network, and runs entirely in your browser. Change any of them and the output follows immediately.

When would I actually use this?

Verifying a download matches its published checksum, comparing two files without reading them, and generating a signature for an API request.

What is the most common mistake?

Hashing a password with a fast algorithm. MD5 and SHA are built to be quick, which is exactly wrong for passwords — those need a deliberately slow function like bcrypt, scrypt or Argon2.

What else is filed next to it?

MAC Address Generator, My IP address and UUID Validator / Decoder share its section. They are not variants of it — being filed together is not the same as being alike — but that is where to look if this turned out not to be the tool you wanted.

Where do the figures come from?

The digests follow their published specifications and are computed by the browser's own crypto implementation where one exists, so a value can be checked against any other conforming tool.

Further reading

All guides →
ExplainerYAML Looks Friendly and BitesYAML is JSON plus a type-inference layer, and the inference is the dangerous part. The same file run through a YAML 1.2 parser and a YAML 1.1 parser: no is a string in one and false in the other, 01234 is 1234 in one and 668 in the other, and 12:30:00 is a number in one of them.ExplainerThe Caesar Cipher Explained: How Shift Ciphers and ROT13 WorkThe Caesar cipher shifts every letter by a fixed amount. Learn how the shift works, why ROT13 is a special case, how to encode and decode by hand, and why the cipher offers no real security today.ComparisonChecksums Are Not Hashes: CRC-32, Adler-32 and What They Are ForA checksum catches accidents. A cryptographic hash resists an attacker. A hash-table hash spreads keys. Three different jobs, three different families — and here is a CRC-32 collision constructed by hand in 0.11 seconds to show exactly why you cannot substitute one for another.ExplainerXML to JSON: Attributes, Repetition, and the Single-Element Array TrapTwo documents that differ only in how many children exist produce two different JSON shapes, and no converter can tell them apart without a schema. Plus what this one really does with attributes, mixed content and whitespace — and the one thing it still cannot record.GuideSecuring a Home Wi-Fi Network: the Key, the Protocol and the Guest NetworkThe generator's random source audited line by line, what SAE actually removes, why transition mode gives most of it back, and the thing every guest-network guide leaves out.GuideWhat a Password Manager Cannot MeasureEntropy prices one attack: offline guessing against a stolen hash. Above roughly 90 bits the number stops deciding anything — and the meter on this site under-reported a random 20-character password in 300 draws out of 300.