哈希值计算
计算文本或文件的 SHA-1/256/384/512。
关于「哈希值计算」
它属于「编码加密」分类：常见编码、哈希与转义，全部在本地计算。
- 使用浏览器原生 Web Crypto 计算文本摘要，支持 SHA-1/256/384/512。
- 所有计算在本地完成，内容不会上传。
完全免费、无需注册；所有处理都在浏览器本地完成，文件不会上传到任何服务器。
相关关键词：哈希值计算、编码加密、hash、sha256、摘要、在线工具、免费
如何使用「哈希值计算」
- 打开工具：打开「哈希值计算」页面，无需注册、无需安装任何软件。
- 准备输入：准备好要处理的内容或文件：文本可直接粘贴，文件可拖入页面（本工具属于「编码加密」）。
- 填入内容：把内容粘贴进输入框，或把文件拖入页面；也可以点击「示例」先填入样例数据试一下。
- 设置选项并处理：按需调整页面上的选项，然后点击处理 / 转换 / 生成按钮。
- 获取结果：处理完全在浏览器本地完成，结果可直接复制或下载，文件不会上传到任何服务器。
常见问题
- 为什么没有 MD5？
- Web Crypto 未提供 MD5；如需 MD5 请使用专门的 MD5 工具。
- 能算文件的哈希吗？
- 本工具面向文本；计算文件哈希可后续版本补充（读取文件为字节再 digest）。
Hash Calculator (English)
Compute SHA-1/256/384/512 of text or files.
Belongs to “Encoding & Crypto”: Common encodings, hashes and escaping — all computed locally.
- Computes text digests with the browser’s native Web Crypto, supporting SHA-1/256/384/512.
- All computation is local; nothing is uploaded.
Free, no sign-up; everything runs locally in your browser and files are never uploaded.
Keywords: Hash Calculator, Encoding & Crypto, hash, sha256, digest, online tool, free
How to use it
- Open the tool：Open the “Hash Calculator” page — no sign-up and nothing to install.
- Prepare the input：Prepare the content or file to process: paste text or drop a file onto the page (this tool belongs to “Encoding & Crypto”).
- Provide the input：Paste your content into the input box or drop a file onto the page; you can also click “Sample” to try example data first.
- Adjust options and run：Adjust the options if needed, then click the process / convert / generate button.
- Get the result：Everything runs locally in your browser; copy or download the result — your files are never uploaded.
FAQ
- Why no MD5?
- Web Crypto does not offer MD5; use the dedicated MD5 tool if you need it.
- Can it hash files?
- This tool targets text; file hashing could be added later (read bytes then digest).
More tools in Encoding & Crypto
- Base64 Encode/Decode — Convert text to/from Base64, plus file to Base64.
- URL Encode/Decode — encodeURIComponent-level escaping and unescaping.
- HTML Escape — Escape and unescape HTML entities.
- MD5 Hash — Pure front-end MD5 digest computation.
- Morse Code — Convert text to/from Morse code, with beep playback.
- Radix Converter — Convert numbers between any bases 2–36.
- Unicode Converter — Convert Chinese to/from \u escape sequences.
- JWT Decoder — Decode JWT header and payload, show expiry.
- Random Password Generator — CSPRNG-based strong passwords, batch supported.
- Password Entropy — Estimate password strength and brute-force time.
- UUID Generator — Batch-generate v4 UUIDs, optional upper-case and no dashes.