GAPVelocity.ai
with agentic AI purpose-built for modernization
Our team runs your application through VELO, which automates up to 95% of the conversion into idiomatic C# and Blazor. What you buy is the beta-ready output: a modernized codebase that compiles and runs, at a price fixed before work begins.
Sign up for the pre-release of our self-service platform, and be first to run your own VB6 assessment and modernization directly, no engagement required.
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Steps 1 and 2 scope and prove the work. Step 3 is the VELO engagement itself, and there is nothing for your team to install or operate.

35+ years and 1B+ lines of legacy pattern recognition, proven at enterprise scale on MS Foundry.
Only 14% of organizations have reached the highest level of cloud maturity. The gap is becoming a chasm. NTT Data, 2026 ↗
Every layer of the VB6 stack has a modern equivalent waiting on the other side.
Select a construct to see the actual transformation.
Phases 1 and 2 are fully automated. Phase 3 is human-led, when you want it.
Agents inventory the codebase and map it to .NET, before a single line is converted.
Agents convert the logic to .NET and Blazor, then validate the result before it ships.
Compiles and runs. Still needs refinement and testing before it's production ready.
Senior engineers close the gaps automation can't: judgment calls and desktop-to-web rework.
AI Squad gets you to a tested, cloud-native release.
Parses your VB6 project into a structured form, then scores every form and data-bound grid to separate UI screens from report candidates — flagging edge cases like vouchers and receipts instead of mis-scoring them.
General-purpose AI tools get roughly two-thirds of the way through a VB6 codebase, then stall. What's left is the hardest part: tangled global state, ActiveX quirks, and undocumented data access.
That remaining gap is where weeks of manual engineering go. VELO's agents are trained on VB6 patterns specifically, which is what closes it.
The free assessment scopes the remainder precisely before you commit.
Sign up for the pre-release of our self-service platform, and test it on your own VB6 codebase, no engagement required.
Every path answers the same four questions. Only one answers them upfront.
| Manual rewrite | Generic AI tools | VELO | |
|---|---|---|---|
| Timeline | 12–24 months, rebuilt from scratch | Fast start, then stalls indefinitely at the 70% wall | Up to 20x faster than a manual rewrite |
| Cost certainty | Overruns of 2–3x are common | "Free" tool, but the last 30% bills as engineering time, indefinitely | Fixed price, quoted after assessment |
| Business logic | Rebuilt from memory and whatever documentation survived | Approximated; breaks on complex, tangled VB6 patterns | Extracted and converted systematically, validated against the original |
| Who's accountable | Whoever's still on the team when it ships | You, once it stalls | VELO, through beta-ready delivery; AI Squad optional to production |
Figures reflect VELO enterprise engagements anchored to comparable manual-rewrite scope. See assessment for a quote specific to your codebase.
Each checkpoint is scoped and priced before the next one begins.
We run ByteInsight, our automated VB6 codebase scanner, against your codebase to catalog every form, module, and dependency, then walk you through the automation coverage estimate and scope report.
A Forward Deployed Engineer works alongside your team to convert one real VB6 module, so you can judge VELO's output against your own code before committing further.
Our engineers put your full codebase through the agent pipeline. Core architecture is established in C# and Blazor, compiles, and launches your main forms. This is where the bulk of the 95% automated conversion happens.
Senior engineers take the beta-ready application through testing, stabilization, and integration to a production release candidate.
Modernization puts decades of business-critical code in front of an AI system. Here's what happens to it.
VELO runs natively on MS Foundry in a dedicated environment operated by our team. Your code never trains a shared model.
We deterministically assess and map your codebase, so the output ensures the correct business logic.
A Microsoft relationship spanning more than 20 years is what VELO's security posture is built on.
A full reference migration, source available before and after, no form required.
It depends on the size and complexity of the application. A typical mid-sized VB6 application (100K–500K lines) can reach beta-ready in weeks using VELO's automated conversion. The free assessment gives you a precise timeline before you commit. Larger applications with heavy ActiveX or COM dependencies may take longer, still significantly less time than a manual rewrite.
We're building VELO Self-Serve so you can run your own VB6 assessment and modernization directly — it's currently in pre-release, and you can sign up above for early access. In the meantime, VELO is available today as a managed service: you share your VB6 source under NDA, our engineers run it through the platform, and you receive the modernized codebase along with a validation report at each milestone. Either way, there's no software for your team to install or maintain, and you own the resulting code outright.
Yes. VELO extracts and converts the business logic in your VB6 application, including rules in class modules, standard modules, and event handlers, and validates the result through automated testing against the original application's behavior.
No, it's an automated conversion. VELO analyzes your existing VB6 code and transforms it into the target framework, producing idiomatic C#/Blazor code that preserves your application's behavior and structure.
Blazor on .NET 10 running on Azure is the recommended target for a cloud-native, web-based result. Where your team's skills or infrastructure call for it, C# with WinForms is also available, keeping a familiar desktop experience on the same modern .NET foundation.
Yes. For large VB6 applications, VELO can convert in phases, module by module, so your team can validate each phase before moving to the next.
Your source code is shared with us under NDA and processed within a dedicated Azure environment. It is never used to train shared models and never shared across engagements. We accommodate data residency requirements within Azure's regional infrastructure.
You get the full converted source code, with no ongoing licensing fees and no vendor lock-in. Your team can take it to production, or our AI Squad can finish the last mile, testing, stabilization, and integration, at a fixed price.
The free assessment shows you upfront what percentage of your application VELO can automate, so there are no surprises, and anything outside automated coverage gets scoped clearly as part of the fixed-price quote.
Let's make sure it keeps working somewhere better. Sign up for the pre-release of our self-service platform, no cost and no commitment.