開發工具

共 7 個工具

面向開發人員的程式設計工具和程式碼產生器。學習如何使用各種程式設計語言產生隨機數、字串和資料

所有 開發工具 工具

Developer Utilities & Code Tools

Essential developer tools for generating UUIDs, ULIDs, cron expressions, Markdown tables, and ASCII diagrams. Built by developers, for developers.

Why Choose Our 開發工具 Tools?

Standards Compliant

UUID generation follows RFC 4122, ULIDs follow the specification, and cron expressions are POSIX-compatible.

Code Examples

Interactive code examples for Python, Java, and C++ random number generation with live output.

Bulk Operations

Generate up to 100 UUIDs/ULIDs at once, build complex cron expressions visually, and create ASCII diagrams interactively.

常見問題

We support UUID v1 (timestamp), v4 (random), v5 (SHA-1 name-based), v7 (time-ordered), and Nil UUID — all RFC 4122 compliant.

Our programming tool pages include interactive examples for Python, Java, and C++ with live code execution and output demonstrations.

UUIDs are 128-bit identifiers. ULIDs are also 128-bit but combine a 48-bit timestamp with 80-bit randomness, making them lexicographically sortable by time.