v5 Settings — Name-based (SHA-1)
NanoID Settings
Generated UUIDs
🔍 UUID Validator
Smart Online Tools. Simple Solutions.
Smart Online Tools. Simple Solutions.
v5 Settings — Name-based (SHA-1)
NanoID Settings
🔍 UUID Validator
TextCraft UUID Generator creates universally unique identifiers including UUIDs, ULIDs, and NanoIDs directly in your browser. Each identifier is generated locally with no server communication, ensuring your generated IDs remain private and secure.
Supporting multiple ID standards, this tool is essential for developers working with databases, distributed systems, and application development. Generate single IDs or batches with consistent formatting, case options, and version selection for your specific technical requirements.
Generates UUIDs, ULIDs, and NanoIDs instantly with optimized cryptographic generation algorithms.
All identifiers created in your browser using cryptographically secure randomness with no server upload.
Support for UUID v4, time-sortable ULIDs, and customizable NanoIDs in a single integrated tool.
Generate unlimited identifiers at no cost for development, testing, and production deployment preparation.
Generate dozens or hundreds of identifiers at once with consistent formatting for efficient workflow.
Every TextCraft tool processes your data entirely in your browser — nothing is uploaded to any server. This means your files, text, and personal information stay completely private on your device. Whether you are converting documents, editing images, or generating random data, you can work with confidence knowing your content never leaves your computer.
UUID v4 generates 128-bit random identifiers in standard 8-4-4-4-12 hexadecimal format. ULIDs combine a 48-bit timestamp with 80 bits of randomness, producing identifiers that are both unique and sortable by creation time. NanoIDs are compact, URL-safe identifiers with customizable length (typically 21 characters) using a 64-character alphabet for high density in minimal space.
Yes, the tool offers flexible formatting options. You can choose between uppercase and lowercase hexadecimal output, and toggle hyphen inclusion on or off. UUIDs without hyphens produce 32-character continuous strings, while ULIDs and NanoIDs have their own formatting controls. This flexibility ensures output matches your specific application or database requirements.
UUID v4 uses 122 random bits providing approximately 5.3 x 10^36 possible values, making collision probability astronomically low. ULIDs use timestamps for time-based uniqueness plus random bits. NanoIDs with 21 characters provide collision probability similar to UUIDs. The cryptographic randomness ensures uniform distribution across the identifier space, minimizing collision risk far below practical concern.
The batch generation feature can produce hundreds or thousands of identifiers in a single operation. Generation is practically instantaneous as all processing is local. The output can be formatted as a simple list, comma-separated values, array notation, or SQL-compatible format for direct use in database scripts, configuration files, or application code without additional formatting.
Yes, ULID generation uses your device local system time for the timestamp component. This means ULIDs generated on different machines at the same moment will have timestamps based on each machine local clock. For most development and testing scenarios this is acceptable, but for production distributed systems, time synchronization across machines should be considered.