Jot on your phone.
Work and store in your Bunker.

New here? What is JotBunker?

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Your phone is always with you

Jot it down. Look it up. Keep moving. Four workspaces on your phone, each designed for a different kind of thinking.

Quick Capture

Six numbered slots. An intentional constraint to keep you focused on today. Capture what matters, clear what doesn't. When jots fill up, download them to your computer, clear and reuse.

Five Input Modes

Text, finger drawings, camera photos, voice recordings, and file attachments — all in one slot. Each jot stores all five types independently.

Remember The Milk

Quickly access your todos and other checklists. Use the default categories or rename them to whatever fits your life. Switch between lists with a tap.

Syncs Both Ways

Add an item on your phone, see it on your computer. Check it off on your computer, it's done on your phone. Works offline, merges when you return to your bunker.

Remember Your Anniversary

Gate codes, lock combos, membership numbers... the stuff you need access to no matter what, even when you're at the end of a long country road with no internet connection.

Biometric Gate

Android/iOS Face ID or passcode to access. Auto-locks when you navigate away. Your sensitive info stays private, even if someone picks up your phone.

Pick Up Where You Left Off

Six freeform text areas for thinking in progress. Brainstorm on your computer, pick it up on your phone. No structure, no formatting — just text.

Free Form Typing

Designed for distraction free idea capture on the go. Intentional design constraint of six scratchpads are like pages in a paper notebook, only they are renamable and reusable.

One-time Pairing

Scan a QR code once to link your phone and computer. From then on, just tap "Sync" to connect the devices over wifi on your bunker's network.

Encrypted Transport

Every message between your devices is encrypted with NaCl (X25519 key exchange + secretbox) on the wire. Nothing leaves your Wi-Fi. No cloud relay, no internet required.

Cloud? Nah. We own a Bunker

Your phone captures data out in the wild, then brings it back to the bunker where everything is organized and backed up on your computer. Plain files, plain folders, full control. Simple, powerful workflows that keep context and what's important front and center.

Synced With Your Phone

List items on your phone appear on your computer the moment you connect. Add, check off, or reorder items on either device. Changes merge automatically.

What's Next?

All of your lists and notes are in one place. "What should I be working on right now" becomes reflexive.

Think at Your Desk

The same six scratchpads on your phone, with room to breathe. Write long-form on your mechanical keyboard and ultrawide, then pick it up on the couch later.

Context Queue

Use scratchpads as dropzones for a powerful worfklow. Paste text for agentic context or any "temp" information that you just need to drop somewhere for a minute.

Download to Your Filesystem

Jots on your phone are temporary by design. After a session of gathering data out in the wild, return to the bunker and download them to your computer as plain files (.txt, .jpg, .m4a, .pdf, etc.) in folders you control.

Tag and File

Once downloaded, Use the Tag and file system for permanent storage. JotBunker sticks to first principles (plain files an folders) so you can easily integrate into the PKM/RAG of your choosing.

Tags

Create tags on your JotBunker Computer App and file any JotBunker content into labeled folders. Build whatever structure makes sense for your workflow.

Tag Management

Add, remove, and favorite your own custom tags that map to specified folders on your computer's file system.

You Own Your Backups

Backup and Restore to/from your computer's file anytime. No cloud involved.

Encrypted or plaintext

Choose encrypted backups for security or plaintext for portability. Either way, it's a single file you can store anywhere.

Built for daily use

On the computer, JotBunker can replace Notepad and cloud-based todo and note tools. On your phone, access your data even when you can't reach "the cloud". Own your data, don't pay a monthly subscription. Designed for quick entry and easy access to all of the lists and notes that you need at your fingertips.

Plain files on disk

Downloads land as .txt, .jpg, .m4a in folders you control. Use them with anything... search, scripts, PKM, RAG, or just Explorer.

Tags & filing

Create tags on your computer and file content to labeled folders. Your organization system, not ours.

Biometric lock

App lock on resume, auto-locking locked lists. Your private data stays private on the go.

Both devices in Sync

The same lists and notes are synced on the phone and your computer. Last write wins. Your bunker is already a locked down home base with secure computer and wifi.

Offline-first

Everything works without a network. Changes queue up and merge automatically when you reconnect. No spinners, no waiting.

Themeable

Choose and customize base accent color with a grayscale desaturation slider. Make it yours: default steel blue, comfy forest green, even go crazy with neon pink.

Why it works this way

Opinions baked in. Superior to cloud-based apps.

1

No cloud

One phone, one computer. Your data lives on your devices, syncs over your local network. You own it. You back it up. No monthly fee, no terms of service for your own data.

2

Intentional constraints

Two devices. Six jot slots. Six list categories. Six scratchpads. Constraints force you to capture what matters and clear what doesn't. This is a capture surface, not a digital hoard.

3

Close to the metal

Downloaded content lands as plain files in plain folders. Use them with grep, Explorer, PKM / RAG pipelines, whatever fits your workflow. The tool is opinionated about capture, not about how you manage your data.

4

Two mindsets, two devices

Your phone is for jotting and looking up fast, on the go and in the wild, a different headspace. Your computer is for deep work — the mechanical keyboard, the ultrawide, the standing desk. Permanent storage, backups. JotBunker bridges them without pretending they're the same.

Free and Open Source

No cloud. No accounts. No subscription.