WebToolArcUUID Tools
Free browser-based uuid tools with instant results and no account required.
UUID Generator
Generate cryptographically random UUID version 4 identifiers locally in bulk with reusable text formats.
UUID ToolsUUID Validator
Validate UUID text and inspect canonical form, version bits, and RFC variant bits.
UUID ToolsUUID v7 Generator
Generate RFC 9562 UUID version 7 identifiers with an embedded Unix millisecond timestamp.
UUID ToolsUUID v5 Generator
Generate deterministic name-based UUID version 5 identifiers from a namespace UUID and name.
UUID ToolsUUID Inspector
Inspect a UUID's version, variant, bytes, integer value, formats, and embedded timestamp when defined.
UUID ToolsUUID Timestamp Decoder
Decode standardized timestamps from UUID versions 1, 6, and 7.
UUID ToolsUUID Format Converter
Convert one UUID between canonical, uppercase, braces, URN, and compact hexadecimal forms.
UUID ToolsUUID to Base64 Converter
Encode the raw 16 bytes of a UUID as standard or URL-safe Base64.
UUID ToolsBase64 to UUID Converter
Decode a 16-byte Base64 or Base64URL payload into canonical UUID text.
UUID ToolsUUID to Integer Converter
Convert a UUID's 128 raw bits into one unsigned decimal integer.
UUID ToolsInteger to UUID Converter
Convert an unsigned decimal integer from 0 through 2^128-1 into UUID-shaped text.
UUID ToolsUUID Sorter
Sort valid UUIDs lexicographically in ascending or descending canonical order.
UUID ToolsUUID List Deduplicator
Deduplicate UUID lists across case, braces, URN, compact, and hyphenated text forms.
UUID ToolsUUID Collision Probability Calculator
Estimate birthday-collision probability for UUIDv4 random identifiers with 122 random bits.