A private, local-first journaling application built with Flutter.
Platforms: Windows · macOS · Linux · Android · iOS
Data: Stored locally on your device. No cloud, no telemetry.
Format: Plain Markdown (.md) with YAML frontmatter — fully Obsidian-compatible.
- Markdown editor — switchable between Edit, Preview, and Split-View modes
- Daily Notes — auto-generated from template, day navigation
- Vault — open any folder as a vault; works alongside Obsidian
- Full-text search — SQLite FTS5 index, rebuilt from your files
- Properties — Mood, Energy, Sleep, Tags, Location via YAML frontmatter
- Calendar view — heatmap of writing activity
- Auto-save — 500ms debounce, no data loss
- Responsive UI — NavigationBar on mobile, NavigationRail on desktop
- i18n — German and English
- Themes — Light / Dark / System
- Font selection — Inter, Merriweather, JetBrains Mono, Lora, and more
| Version | Features |
|---|---|
| v1.1 | Encrypted vault (AES-256-GCM, Argon2id), Typewriter & Focus mode |
| v1.2 | Speech-to-Text (offline), Quick Capture (global hotkey, floating window) |
| v1.3 | Media embedding, writing prompts, "On This Day" memories, summaries |
| v1.4 | Advanced analytics, heatmap, home screen widgets |
| v1.5 | PDF/EPUB export, import from Day One / Journey / Notion |
| v1.6 | Lifestyle project tracker (weight, fitness, habits, photo timeline) |
| v2.0 | Local AI — sentiment, smart tags, summaries, motivator, note styling |
Your vault is a regular folder. Inkwell stores no data outside of it (except app settings).
vault/
journal/
2026/
2026-03-18.md ← plain Markdown, readable in any editor
_templates/
daily.md ← customize your daily template
_attachments/ ← images, audio, video (future)
.inkwell/
index.db ← search index (derived, rebuildable)
settings.json ← vault-level settings
Example entry (2026-03-18.md):
---
mood: 4
energy: 3
sleep: 7.5
tags:
- daily
- work
location: "Berlin"
---
# March 18, 2026
Today was productive...- Flutter ≥ 3.x (stable)
- For Linux builds:
sudo apt install clang cmake ninja-build pkg-config libgtk-3-dev lld
git clone https://github.com/Fenron-dev/inkwell.git
cd inkwell
flutter pub get
flutter run# Linux
flutter build linux --release
# Android
flutter build apk --release
# Windows
flutter build windows --release
# macOS
flutter build macos --release- State management: Riverpod (AsyncNotifier, StreamProvider)
- Navigation: GoRouter with StatefulShellRoute
- Database: Drift + SQLite FTS5 (search index only)
- Markdown: flutter_markdown
- i18n: Flutter's built-in
flutter_localizations+ ARB files - Encryption (v1.1): AES-256-GCM via cryptography, Argon2id key derivation
The filesystem is the source of truth. The SQLite index is a derived cache that can be rebuilt at any time from the .md files.
MIT — see LICENSE