温故以知新，藏思于一隅。Revisit the old, keep the thought in a quiet corner.

温故而知新
凡事预则立Revisit what you know.
Prepare before you need it.

  • 温故而知新Revisit the old
  • 凡事预则立Prepare ahead
  • 数据不出门Files never leave
  • AES-256 本地加密AES-256 on device
密匣笔记OffMemory本地加密的写作与日记Encrypted writing & journal密匣工具OffTools文件工具 · 全程不上传File tools · nothing uploaded

产品Products

两个产品，一条规矩：东西留在你自己手里Two products, one rule: what is yours stays with you

一处安放你写下的文字，一处处理你手上的文件；同一条规矩——没有服务端、不联网，全部在你自己的设备上完成。One holds the words you write, the other handles the files you have — same rule: no server, no network, everything finished on your own device.

密匣笔记OffMemory

OffMemory密匣笔记

iPhone · iPad · Watch · Mac

只有你有钥匙的写作空间。日记、笔记、随手写下的半句，落下来就是密文——没有服务器，也没有账号。A writing room only you can unlock. Journals, notes, half-finished thoughts — ciphertext the moment they land. No server, no account.

  • 写入磁盘之前就用 AES-256 加密，钥匙只有你有Encrypted with AES-256 before it ever touches the disk — and only you hold the key
  • 没有服务端，断网照常写，也没人替你留副本No server, works offline, and nobody keeps a copy for you
  • 没有广告，也不靠你的数据挣钱No ads, and no business built on your data
  • 手机、手表、Mac 一套密文，全家桶都能写Phone, watch and Mac — one encrypted set, the whole family of devices
去官网看看Visit the site

密匣工具OffTools

OffTools密匣工具

网页版 + 微信小程序Web + WeChat mini program

打开就能用的文件工具。剪视频、合 PDF、压图片、做 GIF 和表情包，全在浏览器里跑完——文件一次都没有离开过你的电脑。File tools that just open and work. Trim video, merge PDFs, compress images, make GIFs and memes — all inside the browser, so the file never leaves your computer.

  • 视频、PDF、图片、GIF、表情包，还在一直加Video, PDF, images, GIF, memes — and more keep coming
  • 文件不离开浏览器，关掉页面什么都不剩Files stay in the browser; close the tab and nothing remains
  • 手机上也能用——同一个工具箱在微信里Works on your phone too — the same toolbox lives inside WeChat
打开工具箱Open the toolbox

精选笔记Selected notes

写过的还不多，但每一篇我自己都会回头翻。Not much written yet — these are the ones I reread myself.

全部笔记All notes