Code migration & modernization at scale

Extract specs from your running COBOL, turn real behavior into test fixtures, migrate to a new system and verify it behaves the same.

Run on thousands of programs in parallel.

Configure once - Ona converts CI pipelines, runs tests, iterates until they pass, and opens PRs.

All without paying contractors for months of work.

Eliminate months of tech-debt work.

Define the target version, and Ona upgrades, refactors, and opens PRs across every specified repo — tested and ready for review.

Each agent gets its own isolated environment with your toolchain and permissions.

Hundreds of agents run in parallel — upgrading, testing, and opening PRs simultaneously. You review and merge.

Every agent runs in a policy-compliant environment with scoped credentials and full logging.

What changed, why, when, and by which agent is all recorded automatically.