Accounting & ERP that's fast, offline, and built for India
A modern, fully keyboard-driven desktop app for every Indian business — from a single shop to a multi-branch, multi-company enterprise. GST-ready invoicing, inventory, and vouchers, with sub-200ms actions and your data encrypted on your own machine.
14-day trial, no card · Windows & Linux · macOS coming soon. Activates with a License Number we issue — by Terms & Privacy.
- GST-ready invoicing
- GSTR-1, GSTR-3B & e-invoice
- Offline-first
- AES-256 encrypted
- Keyboard-driven
| SI-1042 | Ramdev Textiles | 3,27,600.00 | |
| RV-210 | Meghdoot Traders | 1,50,000.00 | |
| PI-338 | Surat Yarn Mills | 2,84,100.00 | |
| PY-176 | Gujarat Transport Co. | 46,800.00 | |
| CN-033 | Ramdev Textiles | 18,900.00 | |
| JV-090 | Depreciation — Plant | 22,500.00 |
- Sub-200ms actions
- 50,000+ vouchers / FY
- AES-256 encrypted
- GST-ready
Fast
Sub-200ms common actions, sub-50ms hot queries, one-frame keyboard shortcuts, and virtualized lists that never stutter.
Offline-first
Everything runs locally. No spinner waiting on the cloud — the internet is optional, never required to get work done.
Secure
Encrypted at rest with AES-256, per-user key vault, encrypted backups, and a tamper-evident audit trail.
GST-ready
GST-aware invoicing, HSN/tax categories, and one-click GSTR-1 & GSTR-3B generation with Excel export.
Everything in one app
A complete accounting & ERP toolkit
From the first invoice to your GST return — every module is built in, works offline, and stays out of your way.
Invoicing & Vouchers
Full voucher set — sales, purchase, receipt, payment, contra, journal, credit & debit notes — with series, bills and financial years.
GST Filing — GSTR-1 / 3B
GST-ready invoicing, HSN & tax categories, and one-click GSTR-1 and GSTR-3B generation with Excel export.
Inventory & Stock
Items, item groups, units, warehouses, stock journals, delivery challans and job-work rates — built for traders.
Reports & Exports
Ledger statements and a deep library of reports, each exportable to polished PDF and Excel in a click.
Security & Encryption
SQLCipher AES-256 at rest, an envelope key vault with per-user slots, RBAC, and a tamper-evident audit chain.
Cloud Sync & Backup
Optional full-book sync with per-client isolated encrypted backup and fresh-device restore — offline-first, always.
Everything it does
One app, every job the books need
From GST billing to inventory, returns and encrypted cloud backup — each capability is a module built in, not an add-on. Explore any of them in depth.
GST Billing & Invoicing
Compliant invoices at keyboard speed
Inventory & Stock
Multi-warehouse stock with real valuation
Accounting & Vouchers
One posting engine, one ledger, real double entry
E-Invoice (IRN)
IRP payloads from the voucher you already raised
E-Way Bill
EWB payloads straight from the movement
GSTR-1 & GSTR-3B
Returns that fall out of the vouchers you raised
Reports & Analytics
Twenty reports that stay instant at scale
Cloud Backup & Sync
Optional off-site backup and multi-device restore
Built for real accounting
Finance, GST and inventory — in one fast desktop app
Purpose-built for Indian business: invoicing, GST returns, ledgers and stock, not a generic template.
GST invoicing & vouchers
Raise tax invoices with HSN/SAC, CGST/SGST/IGST and ₹ totals — plus the full voucher set, all at keyboard speed.
GSTR-1, GSTR-3B & e-invoicing
Generate GSTR-1 and GSTR-3B to Excel, with sales/purchase registers, HSN summary, e-invoice and e-way bill built in.
Reports that tie out
Trial Balance, P&L, Balance Sheet and Cash Flow read from one ledger — export any report to PDF or Excel.
Offline-first, encrypted
Your books live on your machine, AES-256 encrypted — with optional, isolated cloud backup when you want it.
How it works
From install to filed returns
Acronix Books follows the rhythm accountants already know — set up once, enter fast all year, and file at quarter end. Here is the whole loop.
- 1
Install in seconds
Download the one-click Windows installer and run it — no account, no credit card, no trial timer. Acronix Books installs locally in a few seconds and quietly keeps itself up to date from then on.
- 2
Create your company & masters
Set up your company with its GSTIN and financial year, then build out the masters you need — ledgers and account groups, tax categories with HSN/SAC, items, units and warehouses. Run several companies from one install and switch between them instantly.
- 3
Enter vouchers at keyboard speed
Record the full voucher set — sales, purchase, receipt, payment, contra, journal, credit and debit notes — without ever reaching for the mouse. Every field, series and bill reference is a keystroke away, and common actions land in under 200ms.
- 4
File GST, then sync & back up
Generate GSTR-1 and GSTR-3B in one click and export to Excel for filing. Take encrypted backups on your schedule, and optionally turn on cloud sync to keep an isolated, encrypted copy that restores cleanly onto a fresh device.
Why desktop, why offline-first
Local-first beats the cloud where it counts
Cloud accounting is convenient until the connection isn't there or the server is busy. A desktop-native, offline-first app removes the network from the critical path entirely.
You still get modern sync and backup — but as an option layered on top, never a dependency you have to keep alive just to raise an invoice.
No network round-trips
Your books live in a local database on the same machine as the app, so opening a ledger, saving a voucher or running a report is a memory-speed operation — not a request that travels to a server and back. That is why common actions finish in under 200ms even with 50,000+ vouchers in a financial year.
Works during outages
Broadband drops, GST portals go down and offices lose connectivity at the worst moments. Because Acronix Books needs no live connection to do the work, billing and data entry carry on uninterrupted — the internet is only ever used when you choose to sync or back up.
Your data stays on your machine
Nothing is streamed to a vendor cloud by default. Your company file sits on your own disk, encrypted with SQLCipher (AES-256), and you decide if and when a copy leaves it. No subscription can lock you out of your own accounts.
Fully keyboard-driven
Your hands never leave the keyboard
Every action has a shortcut, and every shortcut lands in one frame. Fly through data entry the way power users of the old accounting tools always wanted to — no mouse required, no lag between keystroke and result.
Muscle memory that respects an accountant's speed
- New voucherCtrlN
- Save & nextAltS
- Search anything/
- Print / PDFCtrlP
- Change dateF5
- Command paletteCtrlK
- Switch companyAltC
- Cancel / backEsc
Made for Indian business
It already speaks GST, ₹ and Apr–Mar
Acronix Books is built for the way Indian businesses of every size run — the compliance calendar, the numbering, and the trades are baked in, not bolted on for a global template.
Built around the GST return cycle
Invoices carry the GST detail returns actually need, so GSTR-1 and GSTR-3B generate in one click and export to Excel — matching how you file each month or quarter on the portal.
April–March financial year
Periods, opening balances and reports follow the Indian FY (Apr–Mar), not a January calendar year, so your day book, ledgers and trial balance line up with how you actually close the books.
Rupee formatting throughout
Amounts render in the Indian numbering system with lakh and crore grouping and the ₹ symbol, so figures read the way your team, auditors and clients expect at a glance.
HSN / SAC & tax categories
Attach HSN codes to goods and SAC codes to services through reusable tax categories, keeping rates consistent across items and flowing correctly into every invoice and return.
Multi-company & multi-branch
Run several companies or branches from a single install, each with its own GSTIN, masters and books, and switch between them instantly without juggling separate files or logins.
Job-work for manufacturers & textile
Track material sent and received through delivery challans, warehouses and stock journals, with job-work rates for units that outsource stages of manufacturing — a fit for textile and fabrication trades.
Who it's for
Fits the way your trade actually works
One app covers the books, GST and inventory for a wide range of Indian businesses of every size — from fast-moving trade counters to job-work manufacturing floors.
Wholesalers & distributors
High invoice volumes fly through keyboard-driven billing, with items, warehouses and ledger balances always a keystroke away.
Manufacturers (job-work)
Delivery challans, stock journals and job-work rates track material out and finished goods in across outsourced stages.
Retailers
Fast counter billing with GST-ready invoices, tidy inventory, and day-book and ledger reports that reconcile at day end.
Service businesses
Bill services against SAC codes, run receivables from ledger statements, and file GSTR-1/3B without a separate tool.
Ecommerce sellers
Keep GST-clean books across marketplaces, reconcile stock movement, and export returns and reports to Excel in a click.
Schools & institutions
Run multi-ledger accounting with RBAC and a tamper-evident audit trail, so fees and expenses stay accountable.
Go deeper by trade
Pick your line of business
Textile job work, distribution receivables, manufacturing cost, the retail counter and more — each one gets a page on exactly how Acronix handles it, including what it doesn't.
Textile & Fabric
Job work, greige tracking and processor exposure
Wholesale & Distribution
Bill-by-bill outstanding, credit limits, fast billing
Manufacturing
Consumption, production and true cost of goods
Retail
Counter-speed billing that never waits for the internet
Services
GST on services without inventory getting in the way
E-commerce
GST-clean books behind your online selling
Education
Fees, expenses and audit-ready books for a school
Grocery & Kirana
Counter billing, khata credit and thin-margin stock
Stationery & Office Supplies
Thousands of small SKUs, school seasons and office credit
Furniture & Home Furnishing
Bulky stock, long delivery gaps and showroom-to-godown moves
Electricals & Hardware
Deep catalogues, MRP pricing and contractor credit
Auto Parts & Spares
Part-number lookup, counter speed and distributor returns
Chemicals & Industrial Supplies
Batch traceability, drum-level stock and industrial credit
Packaging & Paper
Spec-driven items, job orders and conversion stock
Books & Publishing
Title-level stock, distributor credit and return-heavy trade
Secure by default
Your books are yours — and only yours
Security isn't a bolt-on. Encryption, key management, access control, and auditing are wired into the core of Acronix Books.
AES-256 at rest
SQLCipher encrypts your entire book on disk. Files stolen off the machine are unreadable.
Envelope key vault
Per-user key slots, a recovery code, and a scrypt-derived KEK guard every login and unlock.
Role-based access
RBAC controls who can see and post what, with idle auto-lock protecting unattended sessions.
Tamper-evident audit
A hash-chained audit trail makes any silent edit to history detectable after the fact.
FAQ
Questions, answered
The essentials about what Acronix Books is, how it keeps your data safe, and how to get started.
What is Acronix Books?
Acronix Books is a modern ERP and accounting desktop app built for Indian businesses of every size. It brings multi-company accounting, the full voucher set, GST invoicing with one-click GSTR-1 and GSTR-3B, inventory, and reporting into a single fast, offline-first application. It is designed to feel as quick as the old keyboard-driven tools while looking and behaving like modern software.
Is Acronix Books free?
It is free to try, not free forever. You get a 14-day trial with every feature unlocked and no card required, then it is ₹11,999 a year plus GST for the single plan — nothing is held back or sold as an add-on. Because your books are an encrypted file on your own machine, even if you never renew you keep full read and export access forever; the app simply stops accepting new entries.
Does it work fully offline?
It does. Acronix Books is offline-first: your books live in a local encrypted database and every action runs on your own machine, so billing, data entry and reports keep working with no internet at all. A connection is only used when you choose to use optional cloud sync or backup.
Is my data safe, and where is it stored?
Your company data is stored locally on your own machine, encrypted at rest with SQLCipher (AES-256). Access is guarded by a per-user key vault with a recovery code, role-based permissions, and idle auto-lock, and a tamper-evident audit hash chain makes silent edits to history detectable. Nothing leaves your machine unless you turn on sync or take a backup.
Can it handle my GST returns?
Yes. Invoicing is GST-aware with HSN/SAC tax categories, and Acronix Books generates GSTR-1 and GSTR-3B in one click with Excel export for filing. Everything follows the Indian April–March financial year and the monthly/quarterly return cycle.
I use Tally today — can I move over?
Acronix Books is built to feel familiar to Tally users, with the same keyboard-first speed and voucher-driven workflow, plus a modern interface. It is in early access, so guided migration and import tooling are on the roadmap — the best first step is to install it free and set up a company to try alongside your current books.
Does it support multiple users and roles?
Yes. Acronix Books includes role-based access control (RBAC) so you can decide who is allowed to see and post what, backed by a per-user key vault and an audit trail. Idle auto-lock protects sessions left unattended.
Can I run more than one company?
You can. A single install can hold multiple companies, each with its own GSTIN, masters and books, and you can switch between them instantly — useful for group entities, branches, or an accountant handling several clients.
Which operating systems are supported?
Windows 10 and 11 (64-bit) and Linux (AppImage and .deb) are available now. The macOS build is in the pipeline — you can leave your email on the download page to be notified the moment it launches.
How do updates work?
Once installed, Acronix Books keeps itself current. It checks the release feed in the background, downloads new versions automatically, and applies them on the next restart — no reinstalling. You can also check for updates manually any time from the download page.
Start keeping faster, safer books today
Free 14-day trial, no card. Windows & Linux now — macOS coming soon.
Windows 10 & 11 · 64-bit · ~80 MB