Modernize mission-critical software, safely.
Streamline the modernization process. Enhance control, visibility and verification. Reduce risk and cost in complex migrations.
Streamline the modernization process. Enhance control, visibility and verification. Reduce risk and cost in complex migrations.
faster legacy migration or more
4x faster than standard agentic coding tools.
languages: 4GL family, C, C++, C#/.NET, COBOL, Go, Java, JavaScript, TypeScript, Perl, PHP, Python, Rust
If it builds on Linux, we can port it.
of tests still pass after rewriting 21 codebases in another language. Best published result: 48%.
Half of the differences our proofs caught would have slipped past the tests.
Measured on RepoMod-Bench, a public benchmark of 21 codebases. See the results
Modernization becomes safer and faster when every slice has an explicit scope, rollbacks and evidence.
Tackling a frontend migration 15 years past due in bite-size pieces.
Maintenance can continue without making senior engineers responsible for every repetitive detail again.
Every company must keep systems secure, current, and compliant. Software platforms are aging out, and extended security contracts further pile on to maintenance costs. High risk projects require strict and slow management.
Bosun analyses your codebase, assesses your migration path and architectural options. Your engineers approve the migration path and work items. The Bosun process is structured, repeatable and AI-supported, with accurate, comprehensible and traceable evidence, on-premise and with sovereign AI models.
At Bosun we set out to reliably modernize hard legacy. Core to our solution is the ability to observe the behavior of an application, and replay it against the migrated code. We do this with a tool called Parity. We then used structured workflows to assess, slice, and gradually modernize the application, with our proof. We wanted to test our approach with a different benchmark than our own, where we scored 93% over the published 48%.
Read the postSwiftide 0.33 and 0.34 ship file and planning tools for agents, typed task graphs with fan-out and joins, tool schemas read from rustdoc, streaming command output, and new docs at swiftide.rs.
Read the postNew features, migration guides, and practical content on keeping your codebase healthy.
One modernization solution with demonstrable value. Bosun engineers work with your engineers to connect Bosun safely to your environment and set up the migration process.
