Understand legacy systems
Turn COBOL, RPG, Fortran, Ada, MUMPS, JCL, and brownfield enterprise code into searchable, explainable system intelligence.
LB
LegacyBridge
AI infrastructure for legacy code intelligence
Critical software. Newly understandable.
AI for the codethat still runs the world.
LegacyBridge transforms COBOL, RPG, Fortran, Ada, MUMPS, JCL, and other mission-critical systems into searchable knowledge, safer changes, and modernization clarity without blind rewrites.
40+ yrs
of trapped logic made legible
1 layer
to unify docs, code, rules, and risk
0 blind rewrites
required to create immediate value
System Intelligence Layer
Claims Processing Core
Risk mapped
Natural language query
Which modules calculate late-payment penalties and update downstream customer notices?
Extracted answer
4 COBOL programs, 2 JCL jobs, and 1 nightly batch process are involved. Penalty logic is duplicated in 2 modules. One path bypasses updated notice templates for legacy account classes.
Change warning
Test coverage gap
31%
of logic paths currently unprotected
Recommended path
Generate characterization tests, wrap penalty service, then refactor duplicate branch logic.
Platform
From trapped logic to operating intelligence.
LegacyBridge creates a living system graph around old codebases so teams can understand dependencies, preserve expert knowledge, generate safer tests, and modernize with evidence instead of guesswork.
Ship safer changes
Map dependencies, generate regression tests, score change risk, and reduce the fear around fragile legacy workflows.
Bridge old expertise to new AI
Capture tribal knowledge, onboard modern engineers faster, and build a living modernization layer around code that still runs the world.
Features
Built for brownfield reality.
Not another generic coding assistant. LegacyBridge is designed for brittle, under-documented, mission-critical systems where context matters more than code generation theater.
Legacy code explainers
Business-rule extraction
Dependency and job-flow graphing
AI-assisted safe fixes
Regression test generation
Modernization path recommendations
Tribal-knowledge capture
Onboarding academy for new engineers
Industries
The systems no one can casually replace.
Best fit for organizations with high-value legacy logic, aging expertise, complex compliance demands, and a need to modernize carefully instead of destructively.
Banking
Insurance
Healthcare
Government
Manufacturing
Infrastructure
Aerospace
Scientific computing
Get started
Make your legacy system legible.
Start with a pilot. We ingest one critical workflow, map its dependencies, surface hidden business rules, and show where safe modernization starts.