Open-Source COBOL for Legacy Modernization
Mainframe migration, compiler development, and large-scale testing for mission-critical COBOL systems.
Key Contributors to the GnuCOBOL Ecosystem
We are key contributors to the GnuCOBOL ecosystem, helping organizations migrate mission-critical COBOL systems from expensive mainframes to open-source Linux environments — while ensuring every line of business logic is preserved.
Our GnuCOBOL Capabilities
GnuCOBOL Compiler Expertise
Extending and optimizing the compiler for enterprise-grade workloads.
Mainframe-to-Linux Migration
With full behavior preservation and regression testing.
SuperBOL Development Environment
Our LSP-powered IDE for modern COBOL development.
COBOL Dialect Analysis
And compatibility assessment for migration planning.
Large-Scale Testing Frameworks
Validating migrated programs against mainframe output for systems serving millions of users.
Challenges We Solve with GnuCOBOL
Mainframe to Linux Migration
Migrating mission-critical COBOL applications from proprietary mainframes to open Linux environments, reducing licensing costs while preserving business logic.
GnuCOBOL Compiler Development
Contributing to and extending the GnuCOBOL compiler to support dialect-specific features, ensuring compatibility with legacy codebases during migration.
Testing & Validation at Scale
Building comprehensive testing frameworks that validate migrated COBOL programs against original mainframe behavior, ensuring zero regression for systems serving millions.
Legacy System Modernization
Progressively modernizing decades-old COBOL codebases through incremental migration, interoperability layers, and modern tooling — without disrupting critical operations.
