Funthos Tools

Sketchy-good tools that run in your browser.

UUID & NanoID Generator

Generate UUID v4, UUID v5 (DNS/URL/OID/X500/custom), and NanoID with bulk mode, copy & download — 100% local.

ID Type

How many

Output format

Prefix (optional)

Suffix (optional)

Shortcut: Ctrl/Cmd + Enter

UUID v4 options

Uppercase No hyphens Curly braces {}

Entropy: 122 bits (random) — version/variant bits are fixed by RFC 4122.

UUID v5 options

Namespace

Custom namespace UUID

Name (string)

Uppercase No hyphens Curly braces {}

Deterministic output (same namespace+name → same UUID). Uses SHA-1 per RFC 4122, section 4.3.

Please enter a valid namespace UUID and a non-empty name.

NanoID options

Length

Alphabet

Custom alphabet

Force lowercase Force uppercase Exclude ambiguous (0/O, 1/l/I) where possible

Entropy: ~ (length × log₂(alphabet size)).

List view Text view

Tip: Click a row’s Copy to copy that ID.

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