Open Source Tools & Solutions
Explore our 100% browser-based utility tools, upcoming platforms, and custom setup models designed around professional firms.
GST Compliance Suite
Reconcile purchase registers against GSTR-2B, auto-classify sales data for GSTR-1, and manage E-Way Bills locally. Built on the Anand Reco Engine, processing all calculations client-side.
PDF-to-Excel Converter
Convert bank statements or ledgers from PDF to XLSX locally. Features 6 active intelligence checks to scan totals, dates, and balance sequences.
AuraPDF Compliance Suite
Standard merge, Portal-Ready compliance engine, password decrypter, index/manifest generator, and scanning advisor. Handles GST (5/10MB) & Income Tax portal file limits automatically.
CA Student Hub
Portal for CA candidates containing the Articleship CV Builder, study diaries, and planning trackers. Served online, runs client-side.
CA OS Research
India's Open Legal & Tax Research Platform. Search judgments, case laws, acts, rules, and circulars. Secure Google sign-in.
Bespoke Firm Workspace
Digitise your firm's workflows. Custom dashboards, client portals, internal tasks, and approval flows set up directly for your team.
Private Office LLM
Deploy secure Large Language Models inside your firm's hardware or cloud. Summarise notices and draft appeals safely.
Your Data. Your Storage. Your Choice.
Why pay another software company to store your confidential client data? When deploying custom dashboards or portals with us, you use the storage systems you already trust or keep everything entirely under your own local control.
You think, we automate. Ananda Kumar Prusty & Team handle the entire technical setup, configuration, permissions, and security backups, integrating it seamlessly with your existing infrastructure.
Keep Your AI Inside Your Firm
Summarise notices, draft tax replies, and search office precedents safely. Ananda Kumar Prusty & Team configure compact, powerful LLMs to run entirely inside your private environment.
| Deployment Option | Ideal For | Typical Workloads | Approx. Hardware cost (India) |
|---|---|---|---|
| Starter (Local Workstation) | 1–10 users (Small firms) | Notice summarisation, basic drafting, office files search | ₹80,000 – ₹1.2 Lakh (Ryzen 7, 32GB RAM, 1TB NVMe) |
| Professional (Private Server) | 10–50 users (Mid-sized practices) | Precedent searches, multi-user document chats, faster speeds | ₹1.8 – ₹2.8 Lakh (Ryzen 9, 64GB RAM, RTX 4060 Ti GPU) |
| Enterprise (Private Cloud) | 50+ users (Multi-location partnerships) | Centralised knowledge databases, dedicated GPU VMs, high performance | Cloud compute basis (STPI, Ananta, or private cloud) |
Indicative Cloud Operating Costs
If your firm prefers private cloud hosting over local workstations, here are standard indicative compute costs. Ananda Kumar Prusty & Team automate deployment on your own accounts:
| Cloud Compute Level | Average Monthly Hosting (India) |
|---|---|
| Small Private Instance (CPU only, light workloads) | ₹4,000 – ₹10,000 / month |
| GPU Instance (Small-to-mid-sized team) | ₹18,000 – ₹45,000 / month |
| Medium Private AI Server (Centralised cloud) | ₹40,000 – ₹90,000 / month |
Common Queries & Intents
Find quick answers about the CA Open Source (CA OS) compliance workspaces, data security policies, and custom firm setups.
CA Open Source (CA OS) is a community-driven initiative that provides free, offline-first compliance and audit automation tools designed specifically for Indian Chartered Accountants, tax practitioners, and students. Founded by Ananda Kumar Prusty, the platform includes tools like the Anand Reco GST reconciliation engine, local bank statement PDF-to-Excel parser, AuraPDF merger, and Articleship CV builder.
No. CA Open Source is dedicated to the field of Chartered Accountancy (CA) and financial tax compliance. It is completely independent of digital Certificate Authorities (CAs) used for issuing SSL/TLS certificates or PKI security systems. We are focused on helping accounting offices digitize and automate their client workflows with full data privacy.
Every utility tool on CA Open Source is built using client-side JavaScript. This means that all calculations, SheetJS excel parsing, and data matches happen inside your own browser window. Absolutely no data, client financial records, or bank statements are uploaded to our servers. Your client data remains strictly within your computer, matching the requirements of the DPDP Act, 2023.
Yes. In our download center, we provide pre-packaged ZIP files for the Anand GST Suite, PDF-to-Excel Auditor, and AuraPDF Compliance Suite. You can download these packages to any USB drive, unzip them, and run them completely offline (even without an internet connection) by double-clicking the HTML files inside.
CA Open Source was founded and is maintained by Ananda Kumar Prusty, a technology architect and process automation expert. Ananda and his engineering team build custom practice management ERPs, client portals, and secure private GPU workstations running local LLMs for Indian professional firms on request.
Ananda Kumar Prusty
Ananda Kumar Prusty is the founder of ScanLabs and the CA OS (CA Open Source) initiative. Operating as a technology architect and process automation expert, he designs privacy-first technology solutions tailored specifically for compliance, professional practices, and firm automation in India.
Through custom workspace consulting and private AI deployments, Ananda and his engineering team help Indian professional firms regain control over their data, replacing expensive SaaS subscriptions with secure, self-hosted environments.
"Build technology that gives every professional enterprise-grade software without sacrificing ownership, privacy, or flexibility."
Book a Consultation
Submit your firm's automation request. Ananda Kumar Prusty & engineering team will review and get in touch.