A new language for COBOL workloads, built on Go
We’re building an open-source language layer on top of Go, designed specifically for COBOL-style workloads: Native decimal arithmetic (COBOL-accurate) Record structures and copybook compatibility Batch jobs and transactional orchestration as first-class constructs Sequential / indexed file I/O baked into the runtime Compiles through Go for speed, concurrency, and cloud deployability Think of it as Kotlin for COBOL, or “COBOL on Go” familiar to mainframe engineers, powerful for modern developers. Test Results so far: NIST COBOL-85 validation: 77.61% overall (305/393 tests) NC…
A new language for COBOL workloads, built on Go launched on November 5, 2025 with 5 votes, #4,178 of 9,796 launches that month and more than 75% of that year's launches.
What it does
CobGo — An open-source DSL and compiler for modernizing COBOL workloads into efficient, cloud-native Go applications, with native support for decimal math, batch jobs, and record-based I/O. - CoreBankLang/CobGo_community
In the maker’s words, at launch
We’re building an open-source language layer on top of Go, designed specifically for COBOL-style workloads: Native decimal arithmetic (COBOL-accurate) Record structures and copybook compatibility Batch jobs and transactional orchestration as first-class constructs Sequential / indexed file I/O baked into…
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