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Enter content, process with one click
MD5 使用内置 JS 实现，大文件计算稍慢属正常；SHA 系列使用浏览器原生 WebCrypto（需 HTTPS）。
1Introduction
File MD5 Checker runs entirely in your browser to compute a file's MD5 hash. Use the 32-character string to verify whether a file is complete or modified after transfer, or to compare two files.
2How to Use
1
Choose File
Click the button or drag a file onto the page.
2
Auto Compute
The browser reads the file and computes the MD5 hash locally.
3
View Result
The 32-character MD5 value is shown and can be copied or compared.
3FAQ
Is the file uploaded to a server?
No. The tool runs entirely in your browser; the file is never uploaded.
What is MD5 checksum used for?
It verifies whether a file is complete or modified after transfer, and can compare two files for equality.
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