哈希生成器（MD5、SHA-1、SHA-256、SHA-512）
在浏览器中即时生成任意文本的 MD5、SHA-1、SHA-256 和 SHA-512 哈希值。
如何使用此工具
- 1在上方粘贴或输入需要哈希的文本。
- 2结果实时更新。
- 3点击一下即可复制输出结果。
常见问题
此哈希生成器（MD5、SHA-1、SHA-256、SHA-512）生成的值安全吗？+
是的，哈希值在浏览器本地生成，视情况使用加密安全的 Web Crypto API，不记录任何数据，也不会传输到服务器。
我的数据安全吗？+
完全安全。此工具完全在浏览器中运行，您粘贴或输入的内容不会上传到任何服务器。
教程与深度解析
MD5 vs SHA-256: Which Hash Should You Use?
MD5 is broken for security but fine for checksums. SHA-256 is the modern default. Learn the difference, when each applies, and how to hash passwords safely.
Base64 Explained: What It Is and When to Use It
Learn what Base64 encoding is, why it adds 33% overhead, how data URIs work, the base64url variant, and exactly when to encode or decode — with worked examples.
JWTs Explained: Header, Payload, Signature and Security Pitfalls
Learn how JSON Web Tokens work — the three parts, signing vs encryption, the alg=none attack, cookie vs localStorage, and expiry claims — with worked examples.
What Makes a Password Strong in 2026
Learn what actually makes a password uncrackable in 2026: entropy math, why length beats complexity, passphrases, and how modern crackers work.