Generate unique identifiers easily.
Select your preferred UUID format (standard, no hyphens, or uppercase)
Use the slider to generate 1-100 UUIDs at once
Generate UUIDs and copy individual ones or all at once
Generate UUIDs in standard, no-hyphens, or uppercase formats
Create up to 100 UUIDs at once with a single click
Uses UUID v4 with cryptographically secure random numbers
A: A UUID (Universally Unique Identifier) is a 128-bit identifier that is practically guaranteed to be unique across all systems and time.
A: UUID v4 uses random or pseudo-random numbers. The chance of generating duplicate UUIDs is negligibly small (about 1 in 5.3 x 10^36).
A: Standard format includes hyphens (8-4-4-4-12), no-hyphens removes them for compact storage, and uppercase converts all letters to capitals.
Decode and analyze JWT tokens
Generate JWT tokens with custom claims and headers
Build cURL commands with custom headers, methods, and options
Hash passwords using bcrypt with configurable cost factor
Test regular expressions with live highlighting and match details
Convert between UTC, local time, and Unix timestamp
Escape or unescape special characters for JSON/JS strings
Format and validate JSON, XML, YAML, and SQL with syntax highlighting
Encode text to Base64 format
Decode Base64 text to original format
Convert images to Base64 data URLs
Convert Base64 data to images with preview and download
Convert text to ASCII codes and vice versa
Pick solid colors or gradients and copy the CSS value
Interactive color picker with multiple format output
Extract colors from images with pixel-perfect precision
Generate multiple favicon sizes from text, emojis, or images
Parse and explain cron expressions in human-readable format
View and explore JSON data in a tree structure
Generate unique identifiers easily.
Generate various hashes for your input.
Rename multiple files using patterns and download a ZIP
Generate unique identifiers easily.
Select your preferred UUID format (standard, no hyphens, or uppercase)
Use the slider to generate 1-100 UUIDs at once
Generate UUIDs and copy individual ones or all at once
Generate UUIDs in standard, no-hyphens, or uppercase formats
Create up to 100 UUIDs at once with a single click
Uses UUID v4 with cryptographically secure random numbers
A: A UUID (Universally Unique Identifier) is a 128-bit identifier that is practically guaranteed to be unique across all systems and time.
A: UUID v4 uses random or pseudo-random numbers. The chance of generating duplicate UUIDs is negligibly small (about 1 in 5.3 x 10^36).
A: Standard format includes hyphens (8-4-4-4-12), no-hyphens removes them for compact storage, and uppercase converts all letters to capitals.