Random key generator

Generate random key material in HEX, Base64 or URL-safe Base64.

On your device · No account

Privacy details

Random key generator processes your input in this browser. Inputs and results are excluded from analytics. Recent tools save tool names, visit counts and last-visit times. Saved tools store only their names. Draft saving is optional and stays on this device; delete saved text with the draft controls. Loading text from a URL is optional and contacts that server; its URL and your IP address are visible to the server. An optional “Use in” action keeps a handoff in this tab. The next tool removes it on arrival and ignores it if more than a minute has passed.

Copy link includes the inputs you choose to share in the address. Anyone with that link can reopen them. Files and generated results are excluded. Password and key tools share settings only.

Key length (bytes)

More options

Encoding

Your result

Reset reloads the tool with its starting values and releases open files and device controls. Saved drafts stay on this device until you delete them.

Links include your inputs and settings. Anyone with the link can see them, so leave out private text. Files and generated results are left out; random draws run again.

Keyboard shortcuts

Updated 2026-09-19

Using Random key generator

Random key generator obtains bytes from Web Crypto and encodes them without reducing the byte range. The output is key material, distinct from a versioned UUID, numeric PIN or signed message.

Next: Fake data generator

A worked example

32 random bytes become 64 hexadecimal characters. The same amount of key material is 256 bits because each byte has 8 bits.

Before you use the result

Match the required key length and encoding of the consuming system. This does not register an API key, issue a credential or manage production key storage. Copied text enters your system clipboard.

Cite this page

Citation style

ToolOctopus. “Random key generator.” Updated 2026-09-19. https://tooloctopus.com/random-key-generator.

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