VB6 & Visual Basic MigrationMove your VB6 application to a modern platform without losing its business rules.
We migrate Visual Basic 6 and classic VB applications to modern .NET or web applications, keeping the business logic that has run your operations for years.
- VB6 to .NET or web
- Business rules kept
- Phased cutover
- Modernisation Assessment2–3 weeks · Fixed price
- VB6 Migration3–9 months · Fixed price per phase
How do you migrate a VB6 application?
A VB6 migration starts with analysing the code, forms, reports and database to extract business rules, then choosing a target such as .NET desktop, a web application or a packaged product. Stack18 uses AI-assisted code analysis to document the existing logic, rebuilds screens and reports on the new platform, migrates data, tests results against the old system and cuts over in phases.
- VB6 to .NET migration
- Visual Basic 6 modernisation
- VB6 to web conversion
- legacy VB application upgrade
- VB6 replacement
Last reviewed 11 November 2026 by the Stack18 delivery team in Jaipur.Security & AI governancePricing
| What it covers | Code analysis; Business rule extraction; Target architecture; Rebuild and refactor; Data migration; Parallel run and cutover. |
|---|---|
| Typical first step | Modernisation Assessment: 2–3 weeks; fixed price. |
| Main engagement | VB6 Migration: 3–9 months; fixed price per phase. |
| Measured by | Business rules documented; Defects after go-live; Report accuracy versus old system; User adoption. Each against an agreed baseline. |
| Governance | Human approval at 5 governance gates before anything reaches production. NDA available on request. |
| Delivery team | Based in Jaipur, India. A senior specialist replies within one business day. |
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VB6 & Visual Basic Migration, end to end.
The features and building blocks of a VB6 & Visual Basic Migration engagement. Each is delivered by the same team on the Agentic SDLC, with your approval at every critical step.
Code analysis
Forms, modules and reports inventoried and documented.
- AI-assisted documentation
- Dependency mapping
- Dead code detection
Business rule extraction
Calculations and validations captured as specifications.
- Rule catalogue
- Test cases
- User validation
Target architecture
.NET, web or a packaged product chosen with you.
- Platform options
- Cost comparison
- Roadmap
Rebuild and refactor
Screens, logic and reports rebuilt on the new stack.
- .NET or web app
- Modern reporting
- APIs
Data migration
Access, SQL Server or other databases moved and cleaned.
- Schema redesign
- Data cleansing
- Reconciliation
Parallel run and cutover
Old and new run side by side until results match.
- Comparison tests
- User training
- Phased go-live
A typical engagement, step by step.
Senior people lead every phase. Specialised AI agents on the Agentic SDLC handle the repetitive work, and nothing ships without your approval.
Discover
We map today’s process, systems and data for code analysis, business rule extraction and target architecture, talk to the people who run it and agree the baseline for business rules documented and defects after go-live, so progress is measured from week one.
Design
We design the flows, roles, approvals and integrations for code analysis and business rule extraction, and review a clickable prototype or technical design with the people who will use it before anything is built.
Build
We build in weekly demos, starting with code analysis, then business rule extraction and target architecture. Each release is tested on your own data and passes a human approval gate before the next begins.
Launch
We migrate data, train your team and support go-live. After 30 days we review business rules documented and defects after go-live against the baseline and agree what to extend next.
How much does VB6 & Visual Basic Migration cost in India?
Most VB6 & Visual Basic Migration projects start with a Modernisation Assessment (2–3 weeks, fixed price), which fixes the scope, team and price before you commit. VB6 Migration takes 3–9 months at a fixed price per phase. Prices exclude GST. Cloud hosting and third-party usage, such as messaging, payment or AI model charges, are paid at cost.
Modernisation Assessment
Teams deciding how to modernise a legacy system.
- Duration
- 2–3 weeks
- Pricing
- Fixed price
- Code and data review
- Options and costs
- Migration roadmap
VB6 Migration
Businesses replacing a VB6 system.
- Duration
- 3–9 months
- Pricing
- Fixed price per phase
- Rule documentation
- New application
- Data migration
What drives the price
- Number of modules, workflows and user roles
- Integrations with your ERP, CRM, payments, GST or messaging tools
- Volume and quality of data to migrate
- Compliance, security and audit requirements
- Mobile apps, offline use or multiple languages
Always included
- Fixed scope and price before build starts
- Weekly working demos and human approval gates
- Training, documentation and 30 days of hypercare
- Your code, data and IP, owned by you
See Stack18 pricing or compare fixed price and time and materials.
What we have shipped, and what a typical engagement looks like.
Delivered projects link to the full case study. Illustrative scenarios describe typical engagements and are not named client results.
Textile manufacturer
- Challenge
- A 20-year-old VB6 costing and production system ran on three ageing PCs.
- What we do
- AI-assisted rule extraction, a web application on .NET, data migration from Access and a two-month parallel run.
- We would measure
- Business rules documented, defects after go-live, report accuracy versus old system, against a baseline agreed in week one.
7 months
Co-operative bank
- Challenge
- A VB6 loan tracking application had no remaining developer.
- What we do
- Code documentation, rebuild as a web app with audit trails and phased branch rollout.
- We would measure
- Business rules documented, defects after go-live, report accuracy versus old system, against a baseline agreed in week one.
6 months
Ethnic wear D2C, Jaipur
- Challenge
- A ₹100+ crore brand needed website, app and back office to share one catalogue and one record of stock and orders.
- What we do
- Nine specialists built website, mobile app and ERP on one connected foundation in two-week sprints.
3 months
Read the case study →We agree targets before we start.
Free VB6 assessment
Share the code or a demo. We estimate effort and the best target.
- Code size and complexity
- Target options
- Cost range
Built for these industries.
VB6 & Visual Basic Migration questions.
Cost, timelines, integrations and ownership. If your question is not here, ask a senior specialist on a free 30-minute call.
Ask us anythingHow much does VB6 & Visual Basic Migration cost in India?
Most VB6 & Visual Basic Migration projects start with a Modernisation Assessment (2–3 weeks, fixed price), which fixes the scope, team and price before you commit. VB6 Migration takes 3–9 months at a fixed price per phase. Prices exclude GST. Cloud hosting and third-party usage, such as messaging, payment or AI model charges, are paid at cost.
Should we convert VB6 automatically?
Automated converters can speed up the work but often produce code that is hard to maintain. We use tools and AI for analysis, then rebuild critical parts properly.
Can we keep the same screens?
We can keep familiar layouts to reduce training, while fixing usability problems.
What happens to our data?
Data is migrated, cleaned and reconciled with the old system before cutover.
Can it become a web application?
Yes, and that is often the best choice, allowing access from any browser and mobile.
Do you provide VB6 & Visual Basic Migration across India?
Yes. Stack18 is headquartered in Jaipur, Rajasthan, and delivers VB6 & Visual Basic Migration for businesses across India, including Delhi NCR, Mumbai, Bengaluru, Pune, Hyderabad and Ahmedabad. Work runs remotely with weekly demos, and on-site workshops are arranged for key milestones.
Let's scope your VB6 & Visual Basic Migration project.
Tell us where you are and where you want to be. A senior specialist will reply within one business day with next steps.
- Free 30-minute consultation
- Indicative estimate after the call
- NDA available on request