Have you ever wanted to send hidden, personal notes to friends that feel far more special than plain text?
For this year’s Config Makeathon, I built Secret Letter Workshop — a web-based cipher workspace to write, encrypt and decode private parchment-style messages.
More than a regular encryption tool, it is a fun space for people to create and share private messages together.
Two ways to create your secret note
🔹 Pre-built cipher presets: 5 ready-to-use encryption algorithms. Pick one instantly to encode and decode your secret messages without setup.
🔹 Custom cipher builder: Design your unique encoding & decoding logic from scratch, fully tailor the secret rule to your own exclusive symbol system.
Where you can use it in daily life
🔸 Pass private little notes to close friends without anyone else reading them
🔸 Hide soft personal thoughts inside your digital journal, locked behind simple cipher logic
🔸 Write hidden surprise notes for birthdays, anniversaries and meetups
🔸 Create exclusive coded messages for small friend meetups or trip group chats
Tools
• Brainstorming & Image generation: Gemini
• Style inspiration: Pinterest
• Design & Vectorize: Figma design
• Website development: Figma Make
🧐 The dancing silhouettes carry a Victorian detective’s secret script
I designed a series of editorial-inspired layouts for a fictional typography event and workshop focused on the history of type.
↳ Master typography & layout - The foundation of timeless web design. Join 350+ designers inside my 13-hour online course https://typomonday.com/course