AES / HMAC Box
在浏览器用 Web Crypto 做 AES-GCM 加解密与 HMAC-SHA256。口令经 PBKDF2 派生，数据不上传，适合本地小密文处理。
Interactive controls load with JavaScript. Processing stays in your browser.
Chargement…
How to use
- 选择 AES-GCM 加密/解密或 HMAC。
- 加密使用 PBKDF2（10 万次）从口令派生密钥，输出含 salt/iv 的 JSON。
- 口令与明文仅在内存中处理，不上传。
- 丢失口令无法恢复密文。
FAQ
Does AES / HMAC Box upload my data?
No. AES / HMAC Box runs locally in your browser and does not upload content to www.518882.com or third-party APIs.
Do I need an account?
No. Open and use — no signup, login, or paywall. Open AES / HMAC Box and use it — no signup, login, or paywall.
How is this different from upload-based tools?
Tools run locally in your browser; content is not sent to our servers for processing — suited to private text and drafts.
Are there limits?
Limited by device memory and the browser; very large inputs may slow the page. There is no account quota.