🗂️ 文件哈希校验File Hash

拖入或选择文件，本地计算 MD5、SHA-1、SHA-256、SHA-512 与 CRC32 校验和。文件不会上传，全部在浏览器中完成。Drop or pick a file to compute MD5, SHA-1, SHA-256, SHA-512 and CRC32 checksums locally. Files never leave your browser.

① 选择文件① Choose file

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点击选择，或将文件拖拽到此处Click to choose, or drop files here
支持多选 · 文件不上传Multiple files supported · nothing uploaded

使用说明How to use

怎么用How to use
  1. 点击或拖拽选择文件Click or drop to choose files
  2. 自动计算 MD5/SHA-1/SHA-256/SHA-512/CRC32Auto-computes MD5/SHA-1/256/512/CRC32
  3. 核对下载文件的校验和是否一致Verify a download’s checksum matches

示例：选择文件 → 列出各算法哈希Example: Pick a file → all hashes listed

全程在你的浏览器本地完成，文本不会上传服务器。Runs entirely in your browser; your text is never uploaded.

MD5 由本地内置的轻量脚本（SparkMD5）计算，全程离线；SHA 系列使用浏览器加密接口，需在 https 或 localhost 下使用；CRC32 纯本地计算。所有计算都在你的设备上完成，文件不会被发送到任何服务器。MD5 uses a tiny built-in script (SparkMD5), fully offline; SHA uses the browser crypto (needs https or localhost); CRC32 is pure local. Everything runs on your device — files are never sent anywhere.