Generators

How to use

一页合集 4 个生成器——UUID v4 单个或批量生成、NanoID 与 Snowflake 短 ID、可自定义选项的随机密码，以及任意文本的 MD5 与 SHA-256 哈希。通过上方标签切换，每个工具都可完整使用。

选择标签载入对应工具。所有计算都在浏览器内完成，不会有任何数据上传或保存。

LeetCode Hot100 algorithm notes

Three motives of encoding, four densities of graphics

Git, debugging, generators, cron, and regex

Images are compression budgets; word clouds count characters

Visual demos of sorting, searching trees, dynamic programming and graph algorithms — BST, DP, graphs and shortest paths in one place.

BMI, calories, fitness calculators, ovulation tracking and BAC estimation — everyday health numbers in one toolkit.

Interactive demos of classic ciphers and how blockchain blocks, hashing and consensus work.

Turn text into ASCII character art

Base64, URL, case, radix and Morse codecs

Color picker, palettes, gradients and contrast checker