Open Source · GST Compliant · Made in India

HYPE ERP

Complete offline-first GST billing & 20-module enterprise ERP suite — built for Indian businesses by Nexuzy Lab & Devil One Pvt Ltd. Lead Developer: David.

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20+
ERP Modules
100%
Offline First
AI
Powered
GST
Compliant
Free
Open Source
David — Lead Developer
David Lead Developer
Full-Stack Dev · DevilOne · Nexuzy Lab
Nexuzy Lab
Nexuzy Lab
Publisher · Organization
Devil One Pvt Ltd
Devil One Pvt Ltd
Empire of Future Technology
Developed by Nexuzy Lab under Devil One Pvt Ltd.
Lead Developer David — Kolkata, India.
Devil One devilone.in →
Core Features

Everything Your
Business Needs

GST invoicing, AI analytics, Tally accounting, Firebase sync — all in one offline-ready desktop app.

GST-Compliant Billing

Professional invoices with SGST, CGST, IGST — fully compliant with Indian GST law.

  • Auto invoice numbering with custom prefix
  • Barcode / SKU product lookup
  • Cash, Card, UPI, Credit payment modes
  • Walk-in and named customer billing
  • PDF export with permanent Hype ERP branding
  • Paid / Unpaid / Partial payment status

Inventory & Stock

Full product lifecycle management with intelligent stock monitoring.

  • Min stock threshold per product
  • Auto low-stock alerts (red/yellow)
  • Dead stock analysis — 90+ days unsold
  • Quick Price Adjust & Quick Restock
  • Category, HSN code, barcode/SKU
  • 20 pre-loaded GST category profiles

GST & Tax Config

Pre-loaded GST profiles for 20 industries with a full custom rate manager.

  • SGST, CGST, IGST per category
  • Add / Edit / Delete custom GST rates
  • HSN code auto-fill from category
  • State code for intra/inter-state GST
  • Full Tax ERP module

Tally-Like Accounting

Full double-entry bookkeeping with day-book, P&L, and balance sheet.

  • Day book — daily transaction recording
  • Chart of accounts & journal entries
  • Trial balance & P&L statement
  • Balance sheet & ledger views
  • Asset register & depreciation

CRM & Vendors

Complete customer & vendor relationship tools with purchase history.

  • Customer name, phone, GSTIN, address
  • Purchase history & visit count
  • Dedicated vendor / supplier module
  • Vendor-linked purchase tracking
  • CRM follow-up workflows

HR, Payroll & More

Manage your entire workforce and business operations.

  • Employee records & HR management
  • Payroll processing & salary runs
  • Timesheet — billable hours tracking
  • Projects & task management
  • Role-based access: Admin, Manager, Cashier
ERP Suite

20 Enterprise
Business Modules

Every department covered. All modules open as dedicated windows from the ERP Main Menu. Built by Nexuzy Lab under Devil One Pvt Ltd.

🏦
Accounting
Ledger & accounts
🧾
Invoice
Invoice management
🏛️
Asset
Fixed asset tracking
💰
Tax / GST
GST rate config
🏦
Banking
Bank statements
📈
Sales
Orders & pipeline
🛍️
Purchase
Supplier buying
👥
Vendors
Supplier management
📦
Inventory
Stock control
🏭
Manufacturing
Production workflows
👤
HR
Employee records
💸
Payroll
Salary processing
🤝
CRM
Customer relations
📁
Projects
Task tracking
⏱️
Timesheet
Billable hours
🔵
POS
Retail billing
🚚
Shipping
Delivery management
✅
Quality Control
QC checklists
📣
Marketing
Campaign management
📊
Reporting
Analytics & KPIs
Accounting

Tally-Like
Accounting Suite

Day book, double-entry bookkeeping, P&L, balance sheet — everything Tally does, built into Hype ERP by David & Nexuzy Lab.

📒
Day Book
Daily transaction recording
⚖️
Double Entry
Debit & credit system
🗂️
Chart of Accounts
Full account hierarchy
📝
Journal Entries
Manual & auto posting
🧮
Trial Balance
Balance verification
📈
P&L Statement
Profit & loss report
🏦
Balance Sheet
Assets & liabilities
📋
Ledger Views
Per-account history
🏛️
Asset Tracking
Fixed asset register
Artificial Intelligence

AI-Powered
Business Intelligence

Built-in AI predicts trends, detects fraud, and suggests optimal pricing. Developed by David at Nexuzy Lab.

📉
7-Day Sales Prediction
AI forecasts the next 7 days of sales from your historical data — know your business future before it happens.
🔍
Smart Product Search
Fuzzy matching finds products even with typos or partial names. Speed up counter billing dramatically.
🚨
Anomaly Detection
Automatically flags suspicious or unusual transactions before they become problems. Protects your business.
💡
AI Price Suggestions
Smart selling price recommendations based on cost, margin history, and sales velocity patterns.
Cloud & Sync

Firebase
Cloud Sync

100% offline — syncs to Firebase automatically when online. Your data is always safe. Encrypted credentials. GUI configuration.

  • 🔄
    Bi-directional sync
    SQLite ↔ Firestore — always in sync
  • 🔐
    Encrypted .enc key
    Firebase credentials never stored as plaintext
  • ⚙️
    GUI Config panel
    Configure Firebase from inside the app
  • 🏪
    Multi-store support
    Each store isolated at stores/{store_id}/
  • 🖥️
    CLI sync tool
    Run sync without GUI for scheduled backups
Get Started

Install in
3 Commands

Python 3.8+ required. Auto-installer handles all dependencies. Windows 10/11 recommended.

terminal
# Clone the repository
$git clone https://github.com/david0154/hype-billing-system.git
# Auto-install all dependencies
$cd hype-billing-system && python auto_install.py
# Launch Hype ERP
$python main.py
# Default login: admin / admin123
Python 3.8+ Tkinter SQLite Firebase Admin ReportLab PDF scikit-learn AI PyInstaller EXE Inno Setup

Open Source.
Free Forever.

Built by David at Nexuzy Lab under Devil One Pvt Ltd. Fork it, build on it, star it.

github.com/david0154/hype-billing-system
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