NoteThePad is a privacy-focused productivity app that transforms notes into an intelligent workspace. Powered by on-device Gemma models, Gemini Nano, and Gemini 3 Flash, it provides agentic AI features that organize, summarize, and act on your content automatically.
| Beautiful Interfaces | Rich Multimedia | Smart Checklists | Calendar |
|---|---|---|---|
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| Dynamic Theming | Images, Videos, Audios | Actionable Tasks, Labels | Sync with calendar and timely reminders |
| Rich Text | Agentic AI | Magic Button | Widgets |
|---|---|---|---|
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| Header, Paragraphs, Bullets, B, I, U | Summarize text, recordings, images | One-click assistance | Single or Notelist, for quick access |
NoteThePad uses on-device and cloud AI models as an intelligent agent that acts on your behalf:
- Auto-Tagging - Analyzes note content and automatically maps to existing or new labels
- Audio Transcription - Converts voice recordings to text using Gemini Nano speech recognition or on-device Gemma models
- Image Analysis - Describes images, suggests contextual actions (OCR, recipe extraction, document summarization)
- Image Query - Ask questions about images with streaming AI responses
- Smart Suggestions - Context-aware action items based on note content
- Summarization - Generates concise summaries from text, audio transcriptions, and image descriptions
- Agentic Reminders - During summarization, the AI detects time-sensitive content ("remind me tomorrow", "meeting on April 15") and autonomously calls tool functions to schedule reminders via AlarmManager
| Tier | Model | Capabilities |
|---|---|---|
| Cloud | Gemini 3 Flash | Text, vision, summarization, tagging |
| System | Gemini Nano | Text, audio transcription, summarization |
| Local | Gemma (via LiteRT) | Text, audio, vision, tool calling |
Local models are downloaded from Hugging Face and run entirely on-device for privacy.
- Rich text editing with formatting
- Tags/labels with many-to-many relationships
- Checklists with checkbox conversion
- Search, sort, and filter by tags, date, color
- Archive and soft-delete with recovery
- Calendar view for date-based navigation
- Attach images, audio recordings, and video
- In-app audio recording and playback
- Image capture and gallery integration
- Material 3 with light, dark, and system-follow modes
- 11 note background colors (pastel light + dark variants)
- 12 decorative background patterns (pizza, blueprint, topography, mountain, etc.)
- 13 note shapes (sticky note, perforated paper, frosted glass, washi tape, pinned note, and more)
- Google Drive Backup - Automated daily, weekly, or monthly backups with optional media inclusion
- SupaSync - Real-time cloud sync via Supabase (Postgrest, Realtime, GoTrue)
- Firebase Authentication - Google sign-in for account management
- Single Note Widget - Pin any note to home screen with Glance 1.1.1
- Notes List Widget - Recent notes overview on home screen
- Per-note reminders with exact alarm scheduling
- Calendar screen for viewing notes by date
- Boot-persistent alarm rescheduling
| Layer | Technology |
|---|---|
| Language | Kotlin 2.1, Java 17 |
| UI | Jetpack Compose (100% declarative), Material 3 |
| DI | Dagger-Hilt with KSP |
| Database | Room with encrypted storage (Tink) |
| AI | Google AI SDK (Gemini), ML Kit GenAI, LiteRT (Gemma), MediaPipe |
| Networking | Supabase (Postgrest-kt, Realtime-kt, GoTrue-kt), Ktor |
| Backup | Google Drive API v3 |
| Auth | Firebase Authentication |
| Widgets | Glance 1.1.1 |
| Async | Kotlin Coroutines, Flow, WorkManager |
| Architecture | MVVM + Clean Architecture, multi-module |
:app Entry point, MainActivity, navigation graph
:core:model Pure Kotlin DTOs (Note, Settings, AiModel, CheckboxItem)
:core:data Room DB, DAOs, repositories, DataStore, Tink encryption
:core:common Utilities, Screen routes, NavigationConstants
:core:ui Shared Compose components, Material 3 theme, NoteShapeDrawer
:core:ai Gemini/Gemma/Nano clients, ML Kit, MediaPipe, tool calling
:core:backup Google Drive backup/restore workers
:core:network Supabase sync (Postgrest, Realtime, GoTrue)
:core:richtext Rich text Compose components
:feature:note Note CRUD screens, reminders, audio recorder
:feature:auth Firebase auth, Google sign-in
:feature:settings Settings UI, AI model selection, onboarding
:feature:widgets Glance home screen widgets
:feature:calendar Calendar screen
Dependency flow: :feature -> :core -> :core:model. No circular or feature-to-feature dependencies.
- Android Studio Ladybug or later
- JDK 17 (system default Java 23 breaks Gradle)
- Android SDK 35 (Min SDK 26)
git clone https://github.com/ARandomDev/NoteThePad.git
cd NoteThePadCreate local.properties in the project root with:
# AI (core:ai module)
GEMINI_API_KEY=your_gemini_api_key
HUGGING_FACE_AUTH_TOKEN=your_hf_token
GIST_ACCESS_TOKEN=your_github_token
AI_CATELOG_GIST_URL=your_gist_url
# Cloud Sync (core:network module)
SUPABASE_URL=your_supabase_url
SUPABASE_ANON_KEY=your_supabase_key
# Backup (core:backup module)
DRIVE_CLIENT_ID=your_drive_client_id
DRIVE_CLIENT_SECRET=your_drive_client_secret# Use Java 17 explicitly
export JAVA_HOME=/path/to/jdk17
# Debug build
./gradlew assembleDebug
# Run tests
./gradlew testDebugUnitTest
# Release build (requires keystore setup)
./gradlew bundleReleaseRelease builds require KEYSTORE_PASSWORD, KEY_ALIAS, KEY_PASSWORD env vars and a keystore at app/release.jks.
Each feature module follows MVVM + Clean Architecture:
presentation/ Compose screens + ViewModels (StateFlow)
domain/ Use cases + repository interfaces
data/ Repository implementations
di/ Hilt @Module classes
State is managed with StateFlow and collected via collectAsStateWithLifecycle.
Copyright 2024 NoteThePad
Licensed under the Apache License, Version 2.0