Your Personal
Inspiration Notebook
Jot it down, clip what you read — let AI sort out the rest.
Highlight text in any app and save it with its source, time and place.
Built for Inspiration
From rich text editing to AI analysis, ThoughtEcho provides everything you need
🎨 Tailored for You
Freely combine rich feature modules to create your exclusive recording space
Rich Text Notes
Powerful editor with formatting, images, audio, video & more
- Media & Live Photos support
- Compact card preview with adaptive thumbnails
- Smooth scrolling & instant media previews
Tags & Search
Multi-tag filters, smart facets, full-text search
- Multi-dimension filter
- Fast full-text search
AI Card Generation
Convert notes into beautiful shareable cards with templates
Quick Capture
Clipboard watcher & system-wide excerpt, capture ideas the moment they strike
Daily Quote
A daily quote right on the homepage with curated sources — tap to copy, double-tap to save as a note
- Multiple quote sources
- AI daily writing prompts
Handcrafted Paper & Ink Customization
Paper & Ink, Plain, and Material 3 styles. Built-in Noto Serif SC font with 4 custom ink colors (Umber, Celadon, Indigo, Cinnabar)
- Paper & Ink and Plain paper themes
- Umber, Celadon, Indigo, Cinnabar ink accents
- Built-in elegant serif typography (Noto Serif SC)
Smart Push
Daily quotes & past note recall to awaken memories
💡 Understanding You
AI-empowered context awareness and inspiration, becoming your second brain
Thoughter Agent (Beta)
An AI agent living in your notes: searches your notes and the web on its own, then creates or edits notes with your approval
- Q&A, polish & continuation
- Creates & edits rich-text notes
- Long-term memory & preferences
- Web search & page reading
- Multi-AI provider support
Context Capture
Auto-save location, weather, and time context
Insights & Reports
Periodic data overview, AI summaries & trend analysis
Smart Polish
AI helps polish text, continue ideas, making expression clearer
Contextual Prompts
Personalized prompts based on weather, location & time
🛡️ Safe & Secure
Local-first, privacy-focused, on-device intelligence. Your data, fully under your control
Local-First & Multi-Device Sync
Notes stay securely on your device by default. Sync directly across devices on Wi-Fi without server tracking, or back up to your private cloud
- Smart incremental sync — transfers only new or changed notes
- Zero-data direct Wi-Fi sync with no third-party servers
Hidden Notes
Hidden tags with biometric authentication to protect private notes
Auto-Save Drafts
Auto-save drafts while editing, recover on next launch
Backup Hub
Full ZIP backup & restore. Easy data migration
Recycle Bin
Deleted notes stay safely in Recycle Bin first; custom retention days with auto-cleanup
Zero Privacy Tracking
No commercial tracking. Crash diagnostics and the User Experience Improvement Program are strictly opt-in and disabled by default
Encrypted Storage
Sensitive info like API Keys uses system-level encrypted storage
🚀 Open & Free
Open source, cross-platform sync, no vendor lock-in. True digital freedom
Open Source
MIT Licensed, fully open source code, community audited
Model Freedom
Support OpenAI, Claude, DeepSeek & more. Switch anytime
All Platforms
Windows and Android supported. Record anywhere
Bring Your Own & Local AI
Connect to custom API endpoints or offline local models like Ollama
Note Sync
LAN direct sync & WebDAV cloud backup for seamless access
Beautiful UI, Just a Tap Away
Click any image to view full size
Modern Tech Stack
Cross-platform app built with Flutter, powered by cutting-edge AI
Flutter (Dart)
Cross-Platform Framework
Reactive State
On-demand UI updates, lightweight & reliable
Local SQLite
100% offline local storage, reliable & fast
Rich-Text Engine
Clean formatting with rich media layout
Open AI Support
OpenAI, DeepSeek, Ollama
Efficient Key-Value Storage
Fast local config & draft persistence
System Keystore Storage
API keys managed securely by system keychain
Media Management
Adaptive thumbnails & incremental sync
Cross-Device Consistency
Windows, Android, iOS (IPA)
Get Started in 3 Steps
No account needed — download and go
1 Download & Install
Pick your platform in the download section: Microsoft Store for Windows (auto-updates), or grab the APK for Android. No sign-up, no login.
2 Capture Your First Idea
Open the app and tap "+" to start writing. Rich text, images, audio and video are all supported, with location and weather attached automatically. Everything stays on your device.
3 Enable AI Features (Optional)
All note features work without AI. When you want AI Q&A and insight reports, add any provider's API Key in settings (OpenAI, DeepSeek, Qwen and more — or run Ollama locally, free and offline).
💻 Developer?
Built with Flutter, MIT licensed. Visit the GitHub repo to read the source, build from source, or contribute.
Charting the Evolution of ThoughtEcho
From inspiration to product, ThoughtEcho is always evolving
v4.1.0 Footprint Wander & Thoughter Deep Roaming
- Footprints & Places: Search nearby places with clear city-district labels, and revisit notes on a map in Explore
- Thoughter Dreaming & Guidance: Reflects on writing preferences when idle, interactive choices help refine ideas, memories stay under your control
- Copy Note Content: Added one-tap note copying from card menu, with automatic source formatting for tidy sharing
- Reliability & Polish: Hardened WebDAV sync security, reduced memory overhead, and multi-select chat cleanup
v4.0.0 Thoughter AI Companion & Handcrafted Themes
- Thoughter AI: Connects with your notes to organize ideas and polish writing; suggestions apply only with your approval
- Handcrafted Themes: New "Paper & Ink" and "Plain" styles with warm serif typography and 4 curated inks
- Cleaner Layout & Fluid Scrolling: Compact photo previews and smoother list scrolling for effortless reading
- Sync & Reliability: Faster local Wi-Fi transfer, hardened WebDAV cloud sync, and improved data protection
v3.7.0 Experience Upgrade
- Experience Optimization: App fluency optimization and bug fixes
- WebDAV Sync: Brand new WebDAV support (Beta)
- PDF Export: Support exporting notes in PDF format
- Security & Stability: Enhanced core security to keep your data safe
v3.6.0 Experience Upgrade
- Trash & Data Safety: Brand new Trash feature with accidental deletion protection and customizable retention days
- Daily Quotes: Multi-provider support for richer daily inspirations
- Efficiency: Option to enter full-screen editor directly, and show last edited time in note list
- Feedback: Dedicated feedback page with GitHub Issue templates and Discussions
v3.5.0 1st Anniversary Edition
- Anniversary: 1st anniversary milestone with special in-app celebratory animations
- Media: Integrated with FrameEcho to support direct viewing & playback of Google Motion Photos
- Capture: System-wide excerpt (Android Only) with auto-prepopulated info, and default note templates
- Smart Push: Overhauled push system prioritizing past precious notes
v3.4.0 Major Update
- Auto-save Drafts: Never lose your work with auto-save & recovery
- Privacy: Hide specific notes behind biometric authentication
- AI Cards: Enhanced shareable card generation with beautiful templates
- UX Enhanced: Added Japanese support & auto-attach location/weather
v3.3.0 Winter Update
- Dark mode visual overhaul
- Full English localization
- Enhanced image zoom & preview
- Windows data storage optimized
v3.0.0 Stable Release
- Stable & Polished foundation
- Powerful Thoughter toolkit
- Architecture refactored for scale
v2.0.0 Evolution
- Material 3 Modern UI/UX
- Full-screen rich text editor
- Auto weather & location capture
v1.0.0 Genesis
- Foundational core architecture
- Basic note taking features
Q & A
All notes and media are stored locally on your device by default and never uploaded to cloud servers. Sensitive credentials like API keys are secured by system keychain storage.
We do not engage in commercial tracking. Crash diagnostics and the User Experience Improvement Program are disabled by default; anonymous diagnostic data is only sent if you actively opt in. When using WebDAV sync, data is transferred solely between your device and your personal cloud.
ThoughtEcho provides two private sync options without hosting your notes on third-party servers:
ThoughtEcho is designed for local-first capture and thoughtful writing:
Capture text across apps with source, time, weather & location
Gentle card proposals to polish text, brainstorm & answer questions
Handcrafted themes with 4 custom ink colors & Noto Serif SC
Fast LAN direct transfer & WebDAV personal cloud backup
Foldable summary cards with adaptive thumbnails for fast browsing
100% local with no login required; export PDF & full backup
Let's freely record with ThoughtEcho
Choose your platform and start capturing ideas
App Stores
Get from official stores with auto-updates