Does EasyBill really work 100% offline without an internet connection?

Yes, EasyBill functions 100% offline without an internet connection. All business profiles, item catalogues, customer ledgers, and finalized bills are stored locally inside your Chrome browser using IndexedDB. You can create invoices, calculate taxes, download A4 PDFs, and print receipts anytime during internet outages. No login, password, or cloud server connection is ever required to operate EasyBill. All customer data and financial numbers stay strictly on your local computer hard drive. PDF generation runs completely client-side in your browser using local vector rendering. When your shop or contractor site loses internet, your billing speed is never interrupted.

How does the Chrome Side Panel work alongside WhatsApp Web, and how is it different from the Full Screen view?

The Chrome Side Panel opens a compact 360-pixel billing window right next to your open WhatsApp Web tab. You can look at a customer chat, type their bill details, and generate a WhatsApp payment link without tab switching. Full Screen view provides an expansive 1440-pixel desktop dashboard with side-by-side A4 paper preview. Side Panel mode keeps your active customer chat visible on the left while billing on the right. Includes a quick sub-toggle between "Fill Bill Details" and "See Final Bill Paper" in 360px. Full Screen view displays all 12 modules, full tables, and real-time live A4 sheet rendering. Both views stay perfectly in sync in real time using local browser BroadcastChannel messaging.

How does EasyBill calculate Indian GST (CGST, SGST, and IGST) and handle tax-inclusive vs. tax-exclusive prices?

EasyBill calculates Indian GST offline using fixed-point Decimal arithmetic to prevent floating-point rounding errors. If your shop state code matches the customer state code, tax is split equally into CGST and SGST. If state codes differ, full IGST applies. It accurately computes both tax-exclusive and tax-inclusive pricing modes. Intra-State: 50% CGST + 50% SGST is applied automatically when state codes match. Inter-State: 100% IGST is applied automatically when billing across state borders. Tax-Exclusive: Adds statutory GST (5%, 12%, 18%, 28%) on top of your base price. Tax-Inclusive: Back-calculates the exact base price and tax with zero 1-paise discrepancy. Includes an optional checkbox to round off fractional paise to the nearest Rupee (ROUND_HALF_UP).

Can I use this extension if my small business or shop does not have a GST number (Unregistered / Bill of Supply)?

Yes, small shops, contractors, and freelancers without a GSTIN can use EasyBill freely. You can toggle the document type to Bill of Supply or Non-GST Bill. The extension will automatically set GST to 0% and hide tax columns while keeping professional branding, item details, and payment receipts intact. Enter your business name, address, and phone number without filling the optional GSTIN field. Select 0% / Nil-Rated or toggle to Bill of Supply to generate statutory non-tax bills. All customer records, payment tracking, and receipt printing work identically. If you register for GST later, simply add your GSTIN in Settings to enable tax billing.

Can I manage multiple shops or companies from the same Chrome browser without mixing up bills or customers?

Yes, EasyBill includes a multi-business profile switcher in the top bar. You can manage unlimited separate businesses, shops, or firm names from one browser. Each business maintains its own distinct GSTIN, state code, address, bank accounts, custom logo, item catalogues, and independent bill numbering sequences. Switch between firms in a single click without logging out or reloading the page. Prefixes like INV-2026-, RHE-26-, and APX- increment independently for each business. Customer lists and financial reports remain completely isolated in local database tables. Perfect for entrepreneurs managing a retail shop, a contracting firm, and an agency.

What happens to my old finalized bills if I change a customer address, my business logo, or an item price later?

Nothing happens to your old finalized bills. When you click Save & Make Final Bill, EasyBill takes an immutable snapshot of all business details, customer information, item names, and tax calculations. Changing master prices, addresses, or logos later will never alter previously issued historical bills. Protects your business records and Chartered Accountant audits from accidental corruption. Draft bills remain editable until finalized; final bills freeze permanently. To adjust a finalized bill, issue a formal linked Credit Note or Debit Note. You can also cancel a wrong bill with a mandatory audit reason instead of deleting it.

How do I fix a mistake on a finalized bill or a wrongly typed payment entry?

To fix an issued bill without altering audit history, EasyBill provides linked Credit Notes for returns or reductions, and Debit Notes for extra charges. For payment mistakes, the Money Received module features a safe Cancel Wrong Entry action that restores the outstanding bill balance while logging the reversal. Credit Notes reference the original bill number, date, and adjusted tax breakdown. Cancel This Bill marks the voucher as cancelled without deleting the sequence number. Payment reversals recalculate the customer outstanding balance instantly in the passbook. Zero financial records are silently overwritten, ensuring complete ledger integrity.

What special features are included for service contractors like pest control, AC repair, and AMC businesses?

EasyBill includes a dedicated Service Work Box on the SERVICE_PRO template specifically designed for contractors. You can record Property Type (3BHK, Commercial Office), Premises Area, Treatment or Service Done, Scheduled vs Completed Visits (e.g. Visit 1 of 4), Technician Name, and Warranty Period directly on the bill. Ideal for pest control, air conditioning servicing, CCTV maintenance, and deep cleaning. Lets customers clearly see how many service visits are remaining under their contract. Shows the assigned technician name and service warranty expiration on the A4 PDF. Includes a footer bar listing your authorized service cities and branch coverage.

How do Price Quotes (Estimates) and 1-click conversion into a Final Bill work?

The Price Quotes module lets you prepare professional work estimates with a Scope of Work section, custom payment terms, and a Valid Until Date banner. When a client approves the quote, clicking Make Final Bill from this Quote instantly generates a new GST bill without retyping any items. Avoid customer disputes with clear scope descriptions and validity expiration dates. One click copies all line items, quantities, HSN codes, and discounts to the bill editor. The original quotation is automatically marked as "Turned to Bill" with the invoice link. Supports sharing quotation PDFs directly to customers over WhatsApp.

How do Repeat Bills (Recurring Invoices) work when Chrome is closed over the weekend?

EasyBill uses Chrome Alarms to check repeat bill schedules whenever Google Chrome is open. If your computer was shut down over a weekend or holiday, the extension detects the missed schedule upon opening and generates the due invoice with an idempotent occurrence key, preventing duplicate billing. Schedule bills to repeat Weekly, Monthly, Quarterly, Yearly, or on a specific day. Idempotent occurrence keys ensure each billing period is billed exactly once. Generates bills automatically in Draft or Final status according to your preference. Displays an alert banner showing newly generated repeat bills ready for customer dispatch.

Where is my business data stored, and how do I back it up or move it to a new computer?

All business data is saved locally in your Chrome browser IndexedDB database. EasyBill provides a 1-click Download Backup button in Settings that exports a clean .json file to your computer or USB drive. When moving computers, load this backup using the dry-run preview to verify records before merging. Your financial figures, phone numbers, and customer lists never touch any cloud server. Export a full JSON backup file anytime to keep in your Google Drive or local backup folder. Restore includes a pre-flight inspection screen displaying the exact count of bills and customers. Choose between Safe Merge (adds missing items) or Full Replace (replaces local database).

Is EasyBill free, and does it read my browsing history or send my billing data to any server?

EasyBill is free and privacy-first. Under Chrome Manifest V3, it requests zero host permissions, meaning it is technically impossible for the extension to view your browsing history, read tabs, or access external websites. EasyBill contains zero tracking scripts, zero ads, and zero server telemetry. Zero host_permissions ( ) requested in chrome manifest.json. Zero content_scripts injected into your browsing sessions or visited websites. Only requests storage, sidePanel, alarms, and unlimitedStorage to function locally. Free forever for Indian small business owners, contractors, shops, and freelancers.

LEGAL & COMPLIANCE•LAST UPDATED: OCTOBER 27, 2026•MANIFEST V3 COMPLIANT

Privacy Policy for EasyBill – Invoice & Billing

EasyBill is an offline-first Google Chrome Extension (Manifest V3) engineered for Indian shopkeepers, service contractors, traders, and small business owners. This document sets forth our strict commitment to complete local data ownership, zero cloud tracking, and total privacy transparency.

Core Architecture & Privacy GuaranteeEasyBill operates on an uncompromising Local-First, Zero-Telemetry Architecture. 100% of your business information, customer lists, price quotes, GST invoices, and banking credentials reside exclusively on your local computer inside sandboxed browser storage (IndexedDB). We run zero cloud databases, collect zero telemetry analytics, and execute zero outbound tracking requests. Your business records never leave your machine.

1. Executive Summary & Core Architectural Principle

EasyBill – Invoice & Billing (“EasyBill”, “we”, “us”, or “our”) is published under the Trustoryx verification ecosystem. Unlike typical SaaS billing software that synchronizes your customer ledgers to central remote cloud servers, EasyBill was engineered from day one to operate 100% offline.

Zero Cloud Databases: We do not operate any server-side database, user accounts, or cloud sync backends.
Zero Mandatory Login: You do not register, create an account, or verify with an email or phone number to make invoices.
Zero Data Monetization: We never inspect, sell, rent, license, or monetize your sales records, customer contacts, or financial figures.

2. Google Chrome Web Store Limited Use Disclosure

Chrome Web Store User Data Policy Compliance:

EasyBill's use of permissions and user data adheres strictly to the Chrome Web Store User Data Policy, including the Limited Use requirements. All data collection and local processing is restricted to delivering the extension's single stated purpose: providing an offline GST invoice generator, quotation maker, payment ledger, and business billing manager directly in your browser.

3. Information Handled Strictly on Your Local Machine

All data handled by EasyBill is entered directly by you or generated locally on your computer during normal usage:

Business Profiles & Banking

Business name, registered address, State Code, GSTIN, PAN, bank account numbers, IFSC codes, UPI IDs for QR generation, company logos, and signature stamps (encoded locally as Base64 strings).

Customer & Vendor Ledgers

Customer names, phone numbers, billing/shipping addresses, state codes, customer GSTIN/PAN, and transaction histories.

Inventory & Services

Product descriptions, HSN/SAC codes, measurement units (PCS, KGS, HRS, SQFT), unit prices, and applicable GST tax slabs (0%, 5%, 12%, 18%, 28%).

Billing & Tax Documents

Tax Invoices, Bills of Supply, Proforma Invoices, Quotations, Delivery Challans, Credit/Debit Notes, and Payment Receipts with intra/inter-state CGST, SGST, and IGST breakdowns.

4. Sandboxed Storage Architecture

Your data is stored exclusively in your browser's origin-isolated storage structures:

IndexedDB (easybill_db via Dexie.js):Encrypted and isolated by Google Chrome to the extension's sandboxed unique origin (chrome-extension://<id>/). Other websites and extensions have zero access to this database.
chrome.storage.local:Used strictly for ephemeral 400ms-debounced draft form buffers to prevent data loss if the side panel is closed mid-entry.

5. Network Traffic & Zero-Telemetry Disclosures

Zero Outbound Requests: EasyBill initiates zero background network requests. The extension does not contain Google Analytics, Segment, Sentry, Mixpanel, tracking pixels, or diagnostic beacons.

Zero Remote Scripts: All JavaScript libraries (Dexie, Decimal.js, Lucide icons, jsPDF) and fonts are bundled locally within the extension distribution. No assets are loaded from external CDNs.

Explicit User-Initiated Interactions:

WhatsApp Web Share: When you click “Share via WhatsApp”, EasyBill formats a pre-filled text message and opens WhatsApp's official web link (https://web.whatsapp.com/send). EasyBill does not read your private chats, contact list, or session tokens.
PDF Generation & Printing: PDFs are generated entirely inside your browser using client-side JavaScript. Files are saved directly to your local download folder or opened via your native operating system print window.

6. Chrome Extension Permissions Justifications

Permission	Manifest Declaration	Technical Purpose & Justification
storage	"permissions": ["storage"]	Required for debounced draft form caching to prevent data loss if the side panel is closed mid-entry.
sidePanel	"permissions": ["sidePanel"]	Required to provide the compact 360px billing sidebar alongside WhatsApp Web or other browser tabs.
alarms	"permissions": ["alarms"]	Wakes the background service worker once every 60 minutes to evaluate and generate scheduled recurring invoices.
unlimitedStorage	"permissions": ["unlimitedStorage"]	Protects your local IndexedDB records, logos, and invoices from automatic browser storage eviction during disk fluctuations.

Permissions We Explicitly DO NOT Request:

EasyBill does NOT request tabs,activeTab,cookies,webRequest, or anyhost_permissions (such as <all_urls>). The extension has zero capability to inspect your browsing history or read web page contents.

7. Data Portability, Erasure & User Rights

Because all data lives on your machine, you possess full ownership and control:

1-Click Backup Export: Download an unencrypted, human-readable JSON backup of your complete database at any time from the Backup & Restore module.
CSV Spreadsheet Export: Export your invoices, customer lists, and expense records with built-in formula injection sanitization.
Granular Deletion: Modify or delete individual invoices, customer entries, or businesses at any time.
Factory Reset: Clear all stored data instantly from the Settings tab or via Chrome Settings (chrome://settings/content/all).
Uninstallation: Uninstalling EasyBill from Chrome automatically instructs the browser to erase the extension's sandboxed database and storage from your disk.

8. Statutory Indian IT Act & DPDP Act 2023 Alignment

EasyBill complies with Section 43A of the Information Technology Act, 2000 and theDigital Personal Data Protection Act, 2023 (DPDP Act). By operating strictly client-side without remote data processing or centralized intermediary servers, EasyBill ensures that your commercial data remains under your direct physical custody and sovereignty.

9. Contact & Publisher Details

For any questions, legal inquiries, or compliance verification regarding this Privacy Policy, please contact our team:

Publisher: Trustoryx Verification & Security Ecosystem

Official Website: https://trustoryx.digital

Product Web Portal: https://easybill.trustoryx.digital

Support & Compliance Email: support@trustoryx.digital / privacy@trustoryx.digital