Diwali
This afternoon i feel purified. after a complete immersion in the creative and the historic. parts of me that i let atrophy have regenerated. a whole made of parts where each part feels right. feels like rebirth. welcome back. happy diwali.
NewEnd-to-end encrypted private notes
for people who mean to write more
The writing app that remembers what you wrote.
Write a few lines a day. As you type, thinkdeli shows your older notes on the same topic. Notes you want to keep to yourself are end-to-end encrypted, so only you can read them. When a note is ready, publish it to your own page with one click.
Free. Sign in with Google.
A short demo of the thinkdeli editor. A note about a walk to the bay is written, an older note about tide charts appears next to it, the daily goal reaches 300 words, and the note is published. You can click the note to type in it yourself.
Walk to the bay
0 wordsHabit: 269/300
Nov 10, 2026
Walk to the bay
Written on thinkdeli
1,500+ posts so far. Travel notes, poems, essays and photo walks by people who write here.
What thinkdeli does while you write
From January
Aaji’s kitchen
Her pickles took three weeks. She never wrote the recipe down, so I did.
01
Your old notes show up while you write
Start a note about your grandmother’s kitchen and the one you wrote in January about her pickles appears beside it. You don’t tag, file or link anything.
Listening
“…and the chai stall by the station had moved across the road.”
02
Talk when typing is too slow
Tap Talk to text on a walk or in the car. What you say is added to your note as text you can fix later.
What have I written about my dad?
Three notes. In Tide charts you wrote about the tables he kept in the kitchen…
03
Ask questions about your own notes
Ask “what have I written about my dad?” and the assistant answers using what you have already written.
thinkdeli.com/u/you
Walk to the bay
04
Publish a note with one click
When a note is ready, press Publish. It goes up on your own page on thinkdeli, where anyone can read it.
for the notes only you should read
End-to-end encrypted. Only you hold the key.
Most note apps keep your notes on their servers in a form the company can open. Very few writing apps let you seal a note so that nobody else can read it.
thinkdeli does. Make any note private and it is encrypted on your device before it syncs. Nobody else can open it, including thinkdeli.
Unlock with Face ID, a fingerprint or a passphrase. Your recovery key stays with you too, so keep it somewhere safe.
On your device
PrivateLetter to Aai
I never told you why I left the job in Pune. It wasn’t the money.
On our server
kQ3vX9+eTq0bLw7RmZp2YcHs8uJd1nVfA4gKxE6oPtCiyB5lW+MhNrGzSa0Uj7DqFv9Ke3LbXw2TnRy8cIoQpZm1Hs4JfVdA6gEtCk0uBl=
Encrypted on your device
A private note is locked in your browser before it is sent anywhere. Our server only ever receives scrambled text.
Your key, not ours
Your passkey, passphrase and recovery key never reach our server. Without them, nobody can open your notes, including us.
Sealed everywhere
Private notes sync to your phone and laptop and work offline. Images inside them are encrypted too.
| Question | Most note apps | thinkdeli private notes |
|---|---|---|
| The company can open your notes | Yes | No |
| Readable if the servers are broken into | Yes | No |
| Readable if someone demands your data | Yes | No |
How it works. Each private note has its own AES-256-GCM key. Those keys are locked with a master key that only your passkey, passphrase or recovery key can open. Passphrases are stretched with Argon2id, and the encryption runs in your browser with the Web Crypto API.
What to know. If you lose your passphrase, passkey and recovery key, nobody can open your private notes, including us. Ask your notes and related notes use a private note only when you allow it.
A daily goal of 300 words
The counter at the top of every note shows how much you have written today. Each day you reach 300 words gets a square on your calendar. If you don’t know what to write, there is a new prompt every day.
The room went quiet after the second question.
Write without internet
thinkdeli saves notes on your device first. Write on a plane or in a café with bad Wi-Fi, and your notes sync when you are back online.
Take your notes with you
Download every note as a Markdown file from Preferences, any time.
What writers say
“I have moved to thinkdeli from Wordpress and Blogger. With thinkdeli I can write quickly, even offline. … It’s as easy as open thinkdeli, jot notes, upload images and done!”
Manan Dedhia
Writer and photographer
“Quickly want to write something down… thinkdeli. Just confused and want to clear my head… thinkdeli. Want to share some thoughts with my cofounder… thinkdeli. thinkdeli uses AI to link all these, so I don’t have to.”
Antariksha Joshi
Co-founder, Banva
“thinkdeli is my go-to app for quick notes. … I get automatic recommendations from my notes, a mind map with zero setup. I also use voice notes a lot. I love that I can easily publish a note and share it with anyone.”
Adithya Venkatesan
Head of Brand, Last9
Questions
Something else? Write to hello@thinkdeli.com.
Write something today.
Start with one line. It’s free.
