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FNV-1a Hash Generator

Generate a FNV-1a hash of any text instantly in your browser, with hex or Base64 output. Fast non-cryptographic 64-bit hash.

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MD5 Hash GeneratorGenerate a MD5 hash of any text instantly in your browser, with hex or Base64 output. 128-bit digest — fast, but not for security.RIPEMD-160 Hash GeneratorGenerate a RIPEMD-160 hash of any text instantly in your browser, with hex or Base64 output. 160-bit, used in Bitcoin addresses.SHA1 Hash GeneratorGenerate a SHA-1 hash of any text instantly in your browser, with hex or Base64 output. 160-bit — deprecated for security uses.SHA224 Hash GeneratorGenerate a SHA-224 hash of any text instantly in your browser, with hex or Base64 output. SHA-2 family, 224-bit output.SHA256 Hash GeneratorGenerate a SHA-256 hash of any text instantly in your browser, with hex or Base64 output. The most widely used secure hash.SHA3-256 Hash GeneratorGenerate a SHA3-256 hash of any text instantly in your browser, with hex or Base64 output. Keccak sponge, FIPS 202.SHA3-384 Hash GeneratorGenerate a SHA3-384 hash of any text instantly in your browser, with hex or Base64 output. Keccak sponge, 384-bit.Hash generatorCompute 15 hashes (MD5, SHA-256, SHA-3, CRC-32…) of a text or a file.

FNV-1a Hash Generator is free to use as often as you like, directly from this page. It sits under Hashing & crypto in our catalogue, alongside MD5 Hash Generator and RIPEMD-160 Hash Generator.

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 FNV-1a Hash Generator do?

Generate a FNV-1a hash of any text instantly in your browser, with hex or Base64 output. Fast non-cryptographic 64-bit hash.

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.

How is FNV-1a Hash Generator different from MD5 Hash Generator?

They sit next to each other but answer different questions: MD5 Hash Generator is the one to open when you need it to generate a MD5 hash of any text instantly in your browser, with hex or Base64 output. 128-bit digest — fast, but not for security. Pick whichever matches what you're starting from — both are free.

Is there a tool for the next step?

RIPEMD-160 Hash Generator is the closest one after this: Generate a RIPEMD-160 hash of any text instantly in your browser, with hex or Base64 output. 160-bit, used in Bitcoin addresses.

What else is worth having open alongside it?

SHA1 Hash Generator and SHA224 Hash Generator — they come up in the same task often enough to be worth a second tab.

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 →
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.ComparisonMD5, SHA-1, SHA-256: Which Hash, and For WhatMD5 is broken and MD5 is fine, depending on which of three security properties you needed. Here is what collision resistance, second-preimage resistance and preimage resistance actually mean, which algorithm still has which, and why none of them belongs near a password.ExplainerWhat Is a Hash Function? (MD5, SHA-256)A hash function turns any input into a fixed-size fingerprint. Here's what it does, its key properties, common uses, and which algorithms are safe.ExplainerPassword Entropy: What a Strength Meter Cannot KnowEntropy measures the process that produced a password, not the characters in it. H = L x log2(R) is only true when every character was chosen at random — which is exactly why a meter scoring a human-invented password on its character classes is measuring the wrong thing.ExplainerWhat Is Inside a JWT — and What It Does Not ProtectA JWT is signed, not encrypted. Anyone holding the token can decode the payload and read every claim in it. Here is a real token, decoded without any key, plus the three attacks the signature is supposed to stop and the one problem it cannot solve.ExplainerWhat Is a UUID (and When to Use It)?A UUID is a 128-bit identifier that's unique without any central authority. Here's what it looks like, why it's useful, the versions, and when to use one.