Platform migration from ColdFusion to .NET
Convert ColdFusion to .NET
Move ColdFusion applications onto .NET without losing the business rules buried in years of CFML tags, CFCs, and tag-based templates. Spec-first, validated, and governed end to end.
Six reasons to move off ColdFusion
ColdFusion still serves working applications, but the platform risk and licensing cost compound every year.
Licensing cost compounds
Adobe ColdFusion carries per-server licensing that scales with your footprint. .NET runs on an open, cross-platform runtime, removing a recurring line item that grows with the estate.
Same functionality, new platform
Migration does not mean rebuilding features. Forge reconstructs what your CFML templates and CFCs actually do into a Living Spec, then generates C# that preserves that behavior.
BEHAVIOR PRESERVED
Consolidate on a Microsoft stack
Teams already running Active Directory, SQL Server, and Azure gain a single identity, tooling, and deployment story instead of maintaining ColdFusion as an exception.
Security and patch cadence
Actively maintained .NET releases receive the patches, scanners, and audit tooling that aging ColdFusion runtimes no longer get on the same cadence.
Architecture preserved or improved
Keep the structure that works, or restructure deliberately. The Living Spec makes that an explicit decision, not an accident of the rewrite.
Ecosystem and integration
ASP.NET Core slots into modern CI/CD, containers, and API ecosystems that tag-based ColdFusion applications were never designed for.
See your ForgeScore before you commit
Every import is scored across eight engineering-health dimensions before a Work Order is planned, so you know what you are dealing with up front.
Every ColdFusion-to-.NET project on Forge starts the same way: your codebase is imported, scored across eight engineering-health dimensions with ForgeScore, and reconstructed into a Living Spec before a single line of C# is generated. That is what keeps behavior intact and architecture on plan.
8
ForgeScore dimensions
Every stage
Approval gates
6
Pipeline stages
What changes when you move to .NET
The shift is more than syntax. Paradigms, data access, and runtime assumptions all move, and each one needs an explicit mapping.
01
Language & paradigm
Tag-based CFML templates and CFC components are restructured into idiomatic C# classes and ASP.NET Core controllers rather than transliterated tag for tag.
02
Data access
cfquery blocks and inline SQL are re-expressed against Entity Framework Core or Dapper, with parameter binding and type mappings resolved up front instead of at runtime.
03
Runtime & packaging
Applications served by the ColdFusion engine become standard .NET deployables, with session and application scope mapped onto explicit dependency-injected state.
04
Tooling & workflow
ColdFusion Builder and engine-specific tooling give way to Visual Studio or Rider, NuGet, automated tests, and CI pipelines.
What Forge actually produces
Every ColdFusion import is scored across 8 engineering-health dimensions, then broken into Build, Migrate, and Decommission work orders. Here is what that looks like for a data-access finding.
ForgeScore finding
Data Weight
54
How data is modeled, moved, and owned. Moderate score: cfquery blocks embed SQL inside templates and must be re-expressed as Entity Framework Core access behind an application tier.
Medium severity finding
Migration work order
Migrate: CustomerService.cfc
Migrate
Re-express the customer service component as a typed C# repository with equivalent query behavior. Includes verification against the original ColdFusion output before this work order is marked complete.
Common challenges
Most ColdFusion migrations fail for the same handful of reasons, and it is rarely the technology itself.
Logic embedded in templates
Business rules live inside .cfm view templates mixed with presentation markup, so behavior and layout have to be separated before either can move.
Dead & duplicated code
Years of maintenance obscure what is genuinely still in use versus what can be retired, especially across copied template variants.
Implicit typing & scopes
ColdFusion's loose typing and implicit scope resolution rarely map cleanly onto C#'s type system without explicit decisions about nullability and precision.
No test coverage
Legacy ColdFusion applications usually ship with nothing to prove behavioral parity against.
Frequently asked questions
How long does migrating ColdFusion to .NET take?
Do we need documentation of the existing ColdFusion system?
Will the generated C# be maintainable?
How much of the migration is automated?
How do you prove the migrated system behaves the same?