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SHA256 加密
SHA256
哈希为单向不可逆运算,用于校验数据/生成摘要。如需带密钥的 HMAC 请使用 HMAC 计算器。

1Introduction

The SHA256 Encrypt tool quickly converts any text into a fixed-length 64-character hash. Even the smallest change produces a completely different hash string, and the process is simple and intuitive - just enter content and click to generate. It supports both uppercase and lowercase hash output to fit different systems' verification needs. Thanks to SHA256's one-way nature, hash values are difficult to reverse into the original text, providing reliable security while computing fast enough for everyday checks. SHA256 is widely used in blockchain technology, data integrity verification, and tamper checks after file downloads. When you need to compare whether two contents are identical, or verify a file was not corrupted in transit, generating and comparing hashes is a practical and effective method.

2How to Use

1

Enter text

Paste or type the original content you want to hash into the input box.

2

Choose the format

Switch between uppercase and lowercase hash output as needed.

3

Generate the hash

Click the button to get the 64-character SHA256 hash value immediately.

3FAQ

Is SHA256 encryption secure?

SHA256 is currently widely considered secure, and no effective collision attack has been found.

In which scenarios is SHA256 used?

It is commonly used in digital signatures, certificates, blockchain, password storage, etc.