Lychee Ledger

Lychee Ledger

Simple, secure, intelligent personal finance

🚫 No Ads 🔒 No Tracking
Lychee Ledger
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Registered Users
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Total Records
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Today
100%
100% Free
Core Features

More than bookkeeping — understand your spending

From entry to analysis, backup to security — covering every aspect of personal finance.

AI Analysis

Smart spending insights and trend analysis

OCR Receipt Scanner

Upload receipt photos or payment screenshots — auto-detect amount and merchant, fill the form.

Simple Tracking

Natural language input — one sentence to record

Try it

Experience Quick Bookkeeping

No registration needed — tap to add expenses and see real-time stats.

Live Demo
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👆 Click the buttons above to add expenses!
3 Steps

Start in 30 seconds

Open your browser and go — no tutorial needed.

1

Sign Up

Register with email, set a password, agree to terms.

2

Record Your First Entry

Pick a category, enter amount, add a note. Or paste a transaction SMS and let AI fill it in.

3

View Analysis

Open the Reports page — see charts, read AI insights. Understand your spending at a glance.

Use Cases

Who's using Lychee?

No matter who you are, there's a scenario for you.

🏠

🏠 Renters

Monthly rent, utilities, and internet auto-logged. Clear bills at month-end. Never overpay again.

🍜

🍜 Foodies

AI categorizes all food spending. Weekly and monthly reports show where your money went. No more surprises.

💼

💼 Office Workers

Commute, coffee, lunch — all auto-archived. A year-end glance shows your spending patterns. Financial awareness starts with tracking.

🤖 AI

AI Receipt Parser

Paste a bank SMS and AI extracts amount, category, merchant, and date.

Choose a sample to try:

💰Amount
📂Category
🏪Merchant
📅Date

AI parsing is a simulated demo. Actual results depend on input and model performance and may not be fully accurate.

Security & Privacy

Your data, for your eyes only

Security at the architecture level — not just marketing, but technical implementation.

🔐

End-to-End Encryption (E2EE)

Optionally enable E2EE mode. Keys stay local — the server cannot decrypt any ledger data. Even if the server is compromised, your data remains ciphertext.

🛡

Transport Encryption

All API communication is encrypted in transit — no eavesdropping on your ledger data.

Data Backup

Create manual data snapshots and restore anytime. Backup data is also encrypted at rest. Export all data with one click.

Password Security

Passwords stored with bcrypt hashing. No one (including admins) can retrieve your plaintext password. Email-based reset supported.

No Tracking · No Ads

We don't sell data, don't run ads, don't use third-party trackers. Your spending records belong to you alone.

IP Rate Limiting

Built-in request rate limiting and blacklisting — protecting against brute force and malicious access.

Security features depend on correct usage. E2EE is implemented client-side — please verify independently. See full disclaimer for details.

🔐 Your Data, Your Control

How Your Data Stays Private

📱
Your Records
🔐
E2E Encrypted
🏠
Self-Hosted NAS
🔑
Only You Have the Key

Even if the server is compromised, your data remains encrypted ciphertext — the server never sees your plaintext records.

Why Choose Us

Lychee Ledger vs Alternatives

Not just marketing — honest comparison with traditional approaches.

Feature 🍒 Lychee Competitor A Competitor B Traditional Apps Excel
AI Auto-categorization Partial
Photo Billing Partial
End-to-End Encryption
Multi-device Sync
Spending Reports Partial Manual
Completely Free Partial Partial Partial
Backup & Export Partial Partial
Web Access
Core Features
Pricing

Free Forever

All features free for everyone. No hidden fees.

🔥 Lychee Ledger · Standard
🔥 Lychee Ledger · Standard

Lychee Ledger · Standard

¥0
Free forever · No hidden charges
✅ Unlimited records · ✅ AI parsing · ✅ OCR scanner ✅ Reports · ✅ AI summary · ✅ E2E encryption ✅ Backup/export · ✅ Secure auth · ✅ Multi-device
Sign Up Free

Currently free. If pricing changes in the future, advance notice will be given and users retain the right to export their data.

🛠️ Tech Stack

Tech Stack

Every line of code is carefully chosen to protect your data

🖥
Backend
FastAPI
High-performance Python async framework with auto API docs
🗄
SQLite
Zero-config embedded database, lightweight and maintenance-free
📄
Jinja2
Server-side template engine for lightning-fast first paint
🎨
Frontend
🏔
Alpine.js
Minimal reactive frontend framework, no build step needed
📊
ECharts
Apache top-level data visualization library with fluid interactions
p5.js
Creative coding library powering homepage particle animations
📅
dayjs
Ultra-lightweight 2KB date handling library
🤖
AI
🧠
GLM-4
Zhipu GLM-4 model powering AI parsing and Q&A
🔐
Security
🔑
Fernet
Fernet symmetric encryption for end-to-end data protection
🛡
SlowAPI
SlowAPI rate limiting for effective attack prevention
🌐
Nginx
High-performance reverse proxy with SSL termination & static acceleration

Ready to start?

Sign up in 30 seconds. Start recording your expenses today.

Sign Up Free → Downloads

Frequently Asked Questions

Yes, completely free. Lychee is a personal open-source expense tracking app. All features — bookkeeping, AI analysis, OCR scanning, multi-device sync, data export, annual reports — are fully free. If our strategy ever changes, we will notify users well in advance.

We use multiple layers of security: HTTPS encryption in transit, Salted SHA-256 password hashing, Fernet encryption for sensitive fields, and optional E2EE (end-to-end encryption) where the key stays entirely in your hands. Data is stored on our own NAS server and is never sold or shared with any third party.

Yes, anytime. Go to Settings and click Export Data to download all records as a JSON file. We recommend exporting regular backups — it is the most reliable way to protect your data.

AI analysis generates spending trends and summaries based on your ledger data. It is for reference only and cannot replace professional financial planning. AI may produce hallucinations or biases. For important financial decisions, please consult licensed professionals.

Yes. Data is stored in the cloud and synced automatically across all devices logged into your account. Record on your phone and review on your computer — all data stays consistent. Offline entries sync automatically when you go online.

As a personally maintained free service, we cannot promise perpetual operation. However, we commit to giving at least 30 days advance notice before any shutdown, with data export fully available during that period. We strongly recommend making regular backups — it is the best way to protect your data.