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CRC32
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
CRC32 Checksum is a free online tool that quickly computes the CRC32 checksum of text or files, used to verify whether a file was corrupted or modified during transfer or storage.
2How to Use
1
Input Data
Paste text or choose a local file.
2
Run Checksum
Click "Start Checksum" and the browser computes the CRC32 value immediately.
3
View Result
Get the checksum and compare it with the official value.
3FAQ
What is CRC32 checksum used for?
It verifies whether a file is complete after transfer or storage, commonly used after downloading images or archives.
Is data uploaded?
No. The tool runs entirely in your browser; all computation happens on your computer.
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