cobol.legacy
1010 REM legacy.sys v1.0
2020 OPEN "DB.DAT" FOR INPUT
3030 IF ERR THEN GOTO 999
4040 LET X = X + 1
5050 PRINT "..."; X
6060 GOSUB 800
7070 GOTO 40
80999 ON ERROR RESUME NEXT
cobol · vb6 · perl · pl/sql
analysingcompilingverifieduptime · 99.97%
AI-powered code modernization· Why · What · Need
Modernize legacy codewith confidence.
An AI platform that analyses, converts, verifies and deploys legacy code — to AWS or Azure, in 30 to 90 minutes.
ScrollWhy → What → Need
/ 01 — Why
The legacy crisis,
in five numbers.
Tech debt isn’t an engineering anecdote. It’s a balance-sheet item that grows every quarter — and quietly blocks every cloud, AI and mobile programme that depends on the code beneath.
These are the five numbers that show up on every modernization slide we see:
- 01
$1.52T
Global technical debt, growing every year.
Most of it sits inside legacy systems nobody wants to touch — and nobody can afford to leave alone.
- 02
75%
Of enterprise apps still run on legacy.
Cloud, AI, and mobile roadmaps stall on the same wall: code older than the people maintaining it.
- 03
12–24 mo
Average modernization project, often abandoned.
Manual rewrites lose institutional knowledge and ship late. Lift-and-shift just hides the problem in a cloud.
- 04
$200–500
Per function point, paid by hand.
Manual modernization is slow, error-prone, and burns the senior engineers you need on real work.
- 05
1 in 2
Old AI translations don’t even compile.
Naive LLM rewrites drift on names, signatures and imports — they look right, then break at the build.
Built for the industries that can't afford to break
/ 02 — What
One platform.
Four verbs.
Moderniza doesn’t just translate code — it understands it, secures it, verifies it and deploys it. Four verbs share one workspace, one stream and one bar. Tilt the cards to feel the shape.
01Analyse
Understand the codebase, deeply.
- Multi-language semantic parsing across the stack
- Functions, classes, APIs, SQL, call-graph, dependencies
- Architecture pattern detection — MVC, REST, monolith
- A rich blueprint that becomes the AI’s source of truth
02Convert
Rewrite — intelligently, not literally.
- Contract-first: names & paths are declared before code
- Adaptive batching — complex files get dedicated AI calls
- Stitch pass fixes imports, calls, and remaining stubs
- Output is built around your target stack, not pasted into it
03Verify
Prove it behaves like the original.
- Auto-generated test cases derived from the blueprint
- Sandboxed execution against the converted app
- Up to 3 auto-fix loops to reach >95% pass rate
- Security checks ensure old vulnerabilities don’t carry over
04Deploy
Ship to production with one click.
- AWS (EC2 / ECS / EKS) and Azure (AKS), out of the box
- Auto-generated Docker, Terraform and CI pipelines
- GitLab integration with first-commit handover
- A live URL — not a zip file someone has to figure out
/ 03 — How
The six-phase pipeline. In plain English.
Every conversion runs through the same six phases. Each phase has a streamed artefact, a date, and an automated gate. You always know what’s done, what’s next, and what’s blocked.
- P0
Contract
Pre-flight: every file path, class and method signature is declared before a line is written.
- P1
Skeleton
A compilable project structure is generated to match the contract — empty bodies, real shape.
- P2
Test cases
Behavioural tests are derived from the analysis. No runtime needed; the spec writes itself.
- P3
Convert
Code is converted layer-by-layer with adaptive complexity batching. Difficult files get more attention.
- P4
Stitch
Imports, callsites and stub fills are reconciled across the project. The build goes green.
- P5
Verify
Tests run in a sandbox. Failures trigger up-to-3 automated fix loops until parity is proven.
/ Live · The Factory
Legacy in, modern out — on a moving belt.
Every project rides the same line. Files enter on the left, get scanned, rewritten and verified by three stations, and roll off the other end as production-ready code.
Station 01
Analyse
Each crate is scanned for intent, types and call-graph before it moves on.
Station 02
Convert
The forge rewrites it in your target stack — sparks visible, contracts honoured.
Station 03
Verify
A stamping arm signs off only when behaviour matches the original — no exceptions.
/ 04 — Proof
Manual. Old AI. Moderniza. The same project, three ways.
Manual rewrite
20-file project2–4 weeks
Compiles without fix≈ 50%
Functional parity≈ 65%
Old AI translators
20-file project20–40 min
Compiles without fix≈ 60%
Functional parity≈ 55%
Moderniza
ours20-file project8–15 min
Compiles without fix> 98%
Functional parity> 95% (verified)
Sources: internal benchmarks across 200+ conversions; baseline metrics from CISQ 2022 industry estimates. Naive AI baseline taken from public translator tools.
/ 05 — Journey
Six steps from a legacy zip to a live URL.
- 01
Upload
GitHub URL, ZIP, or single file.
- 02
Analyse
Blueprint + security findings.
- 03
Choose
Target stack, validated by AI.
- 04
Convert
Real-time stream, phase-by-phase.
- 05
Review
Code, tests, diagnostics, diffs.
- 06
Deploy
AWS or Azure — one click. Live URL.
Total time, end-to-end: 30 – 90 minutes.
/ 06 — Need
A great project
needs both sides showing up.
Here’s what we ask of you on day one — and what you can ask of us in return. No fine print, no hidden assumptions, no “you should have known.”
From you4 things
- 01
A repo or a zip
GitHub URL, archive, or even a single file. We start with what you have.
- 02
A target stack — or a question
We’ll guide you through Python / Java / Node / .NET, React / Vue, Postgres / Mongo.
- 03
A 30-minute window
One stakeholder, one screen-share, one decision. That’s the whole demo.
- 04
Permission to ship
When the tests are green and the build is signed, we’ll want to deploy. You decide where.
From us4 things
- 01
A blueprint, before any code
Every name and path declared up front. No drift, no surprises.
- 02
Tests written before the rewrite
We prove parity, not just produce output.
- 03
A live stream of every phase
You see what’s happening — and what isn’t — in real time.
- 04
A bundle, not a black box
Source, IaC, Dockerfiles, docs — yours forever, vendor-locked to nobody.
/ 07 — Built for
Built for the people who own the roadmap.
- / 01
Enterprise IT
Modernise legacy monoliths to microservices.
- / 02
CTOs & Tech Leaders
Accelerate digital-transformation roadmaps.
- / 03
Software Architects
Evaluate and execute migrations end-to-end.
- / 04
DevOps Engineers
Auto-generate cloud-native deployment pipelines.
- / 05
Consulting Firms
Deliver modernization at scale, with proof.
- / 06
Startups
Pivot the stack without a year-long rewrite.
/ 08 — Why we win
Six things nobody else does in one workspace.
- / 01
End-to-end automation
From upload to a deployed app — no manual steps in between.
- / 02
Contract-first methodology
Eliminates broken imports, drifted method names, half-finished files.
- / 03
Behavioural verification
Test-proven parity, not just translation that “looks right.”
- / 04
Security-embedded
Vulnerabilities flagged before conversion and not replicated after.
- / 05
Multi-cloud out of the box
AWS & Azure, with the IaC generated for you.
- / 06
Real-time visibility
Watch every phase stream, live — no ‘trust me’ black box.
“
It doesn’t just translate code — it understands it, secures it, verifies it, and deploys it.
“
From legacy zip to a live URL — in 30 to 90 minutes, end-to-end.
“
Compiles > 98% of the time. Verified parity > 95%.
0%
of Moderniza builds compile without a manual fix
0%+
verified functional parity, against original tests
0 min
median end-to-end time, upload to deployed app
0+
conversions completed across enterprise pilots
/ 09 — Next
Bring a repo.
Leave with a build.
In 30 minutes.
Drop us a GitHub URL or a zip. We’ll run a live blueprint, walk you through every phase, and ship a deployed sandbox before the call ends.
Open · Q3 / Q4 2026 capacity·Reply within 1 business day·NDA on request