Mainframe Refactoring & Migration
Modernize Without Rewrite Risk
The broadest legacy coverage of any modernization platform — 165+ asset types across z/OS, AS/400, Unisys, HP NonStop, and every scheduler, 4GL, and industry format your mainframe teams rely on.
Our refactoring engine automatically transforms legacy mainframe applications into modern, cloud-native runtimes while preserving functional behavior. Unlike manual rewrites or lift-and-shift approaches, refactoring is fully automated, deterministic, and validated throughout the process — across every source platform and asset type you have.
Remote Code Scanner — Eliminates the #1 Adoption Blocker
QuickCloud connects to your mainframe or dev server via secure SFTP/FTP and analyzes your code in place. Your source never leaves your infrastructure — no uploads, no third-party storage, no CISO escalations, no project delays.
BMS / 3270 Screen Modernization — Live Preview Before Cutover
Real CICS BMS maps are parsed and rendered as a live UI preview before a single cutover decision is made. Your team sees exactly what the modernized screen looks like — not after go-live, but before it.
How It Works
Discovery — Catalog, Assess & Understand
Ingest production code directly from CA Endevor, ChangeMan ZMF, Panvalet, or Librarian via secure Remote Code Scanner — no manual exports, no disruption to existing workflows. QuickCloud catalogs every asset (165+ types), auto-detects the source platform from content, scores complexity and risk, extracts business rules into plain English, and maps I/O contracts across the full dependency chain.
Restructure — Wave Planning, Screens & Data
Organize the migration into waves using the AI-powered Wave Planner. Dependencies are auto-enforced — programs cannot be split across releases. Each wave carries its own ROI model and cost breakdown. Screens are handled here too: CICS BMS maps are parsed and rendered as live UI previews so your team approves screen layouts before any code is generated. Data structures (IMS, VSAM, ADABAS, DMSII) are mapped and decomposed alongside programs.
Modernize — Docker Sandbox, Compile Fix Loop & Optimization
Each wave executes in a pre-flight Docker sandbox, simulating the full transformation before committing. The AI Transpilation Gateway converts COBOL, PL/I, RPG, and other assets to Java, Python, C#, or Node.js — with an automated compile fix loop that detects and repairs errors until the output is proven correct. AI Semantic Equivalence Testing validates that business logic parity is preserved at every step. Post-cutover optimization and cleanup runs in this phase too.
Validate — Parallel Run, Deploy & Cutover
Legacy and refactored systems execute side-by-side with identical inputs. Outputs are compared automatically — behavioral divergence is flagged before production traffic moves. Phase gate enforcement requires 80% checklist completion before advancing. Deploy with immutable audit trails, SOX/HIPAA-certified snapshots, and 1-click rollback at every gate. Your team owns the execution — no dependency on external consultants.
The Broadest Legacy Coverage in the Industry
If it runs on a mainframe, QuickCloud can migrate it. 165+ asset types across every major platform, scheduler, language, and industry format — including rare platforms no competitor supports.
Core COBOL & Job Control
IBM Mainframe Ecosystem
IBM i / AS400 / iSeries
Batch Schedulers
Legacy Languages & 4GL
Unisys & HP NonStop
Security & Access Control
SCM & Testing Tools
TP Monitors & Middleware
Terminal Emulators & Sessions
Industry Standard Formats
Program Type Detection
QuickCloud automatically classifies program types via content analysis — no manual tagging required.
Source Platform Auto-Detection
Platform is identified from content — no manual configuration needed.
Industry Edge Case Libraries
Pre-built pattern libraries for industry-specific business logic that generic tools miss.
AI That Reads What Humans No Longer Can
Decades of COBOL carry business rules with no documentation, no comments, and institutional knowledge that retired with the people who wrote it. QuickCloud AI reads the full corpus — every program, every copybook, every JCL chain — and surfaces business rules in plain English before a single line of target code is written.
See the full AI PlatformIngests from Your Existing Mainframe SCM
QuickCloud connects directly to the source control systems your mainframe teams already use — no manual export, no separate extraction project, no disruption to existing workflows.
Built for Enterprise Control
Target Languages
- Java
- Python
- C#
- Node.js
- Cloud-native microservices
- SQL / DDL
- Terraform
- Docker
Optional unit test stub generation on transpilation targets.
Cloud & Deployment Targets
- Amazon Web Services (AWS)
- Microsoft Azure
- Google Cloud Platform (GCP)
- On-premises / private cloud
- Edge / hybrid coexistence
Why Refactoring Instead of Rewriting?
Refactoring delivers cloud-native outcomes at a fraction of the risk, cost, and time of manual rewrites — while preserving decades of embedded business logic, industry-specific patterns, and regulatory compliance behavior.
Frequently Asked Questions
Cloud Agnostic by Design
QuickCloud targets any cloud or hosting environment — no vendor lock-in, no forced migration path.
Measurable Outcomes
Lower Risk
Phase gates, parallel-run validation, and 1-click rollback catch issues before they ever reach production.
Faster Time to Value
Wave-based delivery means migrated services go live incrementally — teams see results in weeks, not years.
Lower Cost
Automated refactoring replaces multi-million-dollar consulting engagements your team controls end-to-end.
Higher ROI
Per-wave ROI visibility from day one — each wave carries its own cost model and business case before you start it.
Enterprise Grade
SOX/HIPAA audit trails, immutable phase snapshots, role-based access, and compliance-ready reporting built in.
Also included in Full Platform — $14,999/mo
Complete the migration lifecycle
Most mainframe migrations also require database and identity migration. All three are included in one subscription.