Stop maintaining.
Start modernizing.
Your developers sleep at night. Rest on weekends.
Repave keeps shipping production-ready code.
Repave.ai transforms your legacy codebase into modern, tested, production-ready software — preserving every business rule while eliminating decades of technical debt.
AI Analysis
Deep codebase understanding
BDD Testing
90%+ test coverage
Incremental Migration
Feature-by-feature delivery
The Legacy Trap
Legacy software is silently killing your business
Every year you delay modernization, the problem gets worse. The codebase grows more complex, the talent pool shrinks, and the gap between what your business needs and what your technology can deliver widens.
Skyrocketing Maintenance Costs
Over 60% of IT budgets go to maintaining legacy systems instead of building new capabilities. Every year you wait, the cost compounds.
Slow Time-to-Market
Simple changes take weeks in legacy systems. Your competitors ship features in days while you're stuck debugging 20-year-old code.
Vanishing Expertise
The developers who built your legacy system are retiring. Their institutional knowledge walks out the door with them — undocumented.
Security Vulnerabilities
Legacy frameworks no longer receive security patches. Every day your system runs is another day of exposure to known exploits.
Missed Business Opportunities
Modern integrations, mobile experiences, and AI capabilities are impossible on your legacy stack. Revenue-generating ideas die on the vine.
Rewrite Risk & Failure
Manual rewrites take 2-3x longer and cost 3-5x more than estimated. 70% of large-scale rewrite projects fail or are abandoned.
Enterprises spend 70-80% of their IT budgets
just keeping legacy systems running
That's money that could be building your future instead of preserving your past.
Source: The Fintech Times
The Repave Approach
Modernize with confidence, not guesswork
Repave.ai combines AI analysis, deep codebase understanding, and automated BDD implementation to transform your legacy system into modern software — with every business rule preserved and tested.
AI-Powered Deep Analysis
Our AI agents analyze your entire legacy codebase — every file, function, database table, and business rule — capturing institutional knowledge before it's lost.
- Automatic architecture extraction (C1-C4 diagrams)
- Database schema and ER diagram generation
- Business feature discovery and documentation
- Complete dependency and call-chain mapping
Legacy Codebase
1,200 files analyzed
AI Analysis Engine
Architecture, DB, Features
Complete Documentation
C4 diagrams, ER, Features
Complete Legacy Understanding
We map every actor, action, interface, function, and database table in your system — revealing how your codebase truly works so nothing gets lost in translation.
- Full traceability from users to database tables
- Business rule extraction and documentation
- Multi-language support (Java, COBOL, PHP, .NET, Python)
- Visual exploration of system relationships
Full System Traceability
Every path from user to data — fully mapped
Automated BDD Implementation
AI agents implement each discovered feature using Behavior-Driven Development with Gherkin scenarios. Every feature is built with comprehensive test coverage from day one.
- Auto-generated Gherkin scenarios from legacy code
- AI-driven implementation with 90%+ test coverage
- Isolated development per feature with regression testing
- Modern stack output (React, Next.js, APIs)
Feature: Order Management
As a sales representative
Scenario: Create new order
Given I am on the orders page
When I fill in order details
Then the order should be saved
How It Works
From legacy to modern in 5 steps
Our AI-driven pipeline handles the heavy lifting — from understanding your legacy code to delivering tested, modern software.
Upload Your Codebase
Upload your legacy codebase as a ZIP file. We support Java, COBOL, PHP, .NET, Python, and virtually any language or framework.
AI Analyzes Everything
Our AI pipeline scans every file, maps dependencies, discovers database schemas, identifies user interfaces, and extracts business actions — building a complete knowledge graph.
Features Are Discovered
The AI identifies every user-facing feature in your legacy system and generates Gherkin BDD scenarios that capture the exact business behavior.
AI Implements & Tests
Autonomous AI agents implement each feature in a modern stack with comprehensive test coverage. Every feature is built in isolation and regression-tested.
Ship with Confidence
The result is a modern, fully tested application that preserves every business rule from your legacy system. Ready for deployment and future growth.
Platform Features
Everything you need to modernize
A comprehensive platform that handles every aspect of legacy modernization — from initial analysis to production-ready code.
C4 Architecture Extraction
Automatically generates C1-C4 architecture diagrams from your codebase — System Context, Containers, Components, and Code-level views.
Database Schema Discovery
Extracts complete ER diagrams, foreign key relationships, and data access patterns from your legacy database layer.
Multi-Language Support
Analyzes codebases in Java, COBOL, PHP, .NET, Python, and virtually any language — no matter how old or complex the stack.
Feature Discovery
AI identifies every user-facing feature and generates Gherkin BDD scenarios that capture exact business behavior with code references.
Parallel Execution
Multiple features are modernized simultaneously in isolated branches, dramatically accelerating delivery. Each stream is tested and merged independently.
90%+ Test Coverage
Every implemented feature comes with unit tests, BDD tests, and regression tests. We verify coverage at service, API, and UI layers.
Compliance & Audit Trail
Every business rule is documented and traceable from legacy to modern code. Full audit trail for regulated industries.
Progress & Cost Visibility
Real-time dashboards showing modernization progress, processing costs, and time-to-completion for every feature.
Batch Job Conversion
Specialized pipeline for converting legacy batch jobs from Informix, DB2, and Oracle to modern MySQL and PostgreSQL targets.
Use Cases
Built for the systems that matter most
Whether it's a revenue-critical application or a compliance liability, Repave.ai handles the modernization challenges that keep leadership up at night.
CRM & ERP Systems
The Challenge
Your 15-year-old CRM is too brittle to integrate with modern tools. Sales teams are losing deals because they can't access data on mobile.
The Outcome
A modern, API-first CRM that integrates with your entire sales stack — delivered incrementally while your team keeps working.
Batch Processing & ETL
The Challenge
Nightly batch jobs running on end-of-life databases are a ticking time bomb. One failure means hours of manual recovery and missed SLAs.
The Outcome
Containerized, modern batch processing on supported databases — with automated recovery and full observability.
Regulated & Mission-Critical
The Challenge
Auditors are asking questions about systems nobody fully understands anymore. Compliance risk grows with every undocumented business rule.
The Outcome
Every business rule extracted, documented, and tested. Full traceability from legacy logic to modern implementation for audit confidence.
Customer-Facing Applications
The Challenge
Your competitors ship mobile apps and real-time features while your legacy stack can't support a modern checkout experience.
The Outcome
A modern application with APIs, mobile-ready architecture, and the ability to ship new features in days instead of months.
Business Impact
The ROI your board will understand
Legacy modernization isn't just a technology decision — it's a business decision that affects revenue, risk, talent, and competitive position.
Redirect IT Budget to Growth
Stop spending 60-80% of your IT budget on maintenance. Modernized systems cost a fraction to operate, freeing capital for innovation and new revenue streams.
Accelerate Time-to-Market
New features that took months on legacy systems ship in days on a modern stack. Respond to market changes and customer needs before your competitors do.
Eliminate Compliance Risk
Every business rule is documented and tested. No more audit anxiety from undocumented systems that nobody fully understands.
End Talent Dependency
Stop relying on the one person who understands the legacy system. Modern codebases attract modern developers and reduce key-person risk.
Unlock New Revenue
APIs, mobile experiences, AI integrations, partner ecosystems — none of these are possible on legacy. Modernization opens doors that were permanently closed.
Reduce Security Exposure
Legacy frameworks with no security patches are a breach waiting to happen. Modern stacks receive continuous updates and follow current security standards.
60%
Lower TCO
vs. maintaining legacy systems
10x
Faster Delivery
New features to market
100%
Business Rules Preserved
Verified with automated tests
90%+
Test Coverage
From day one of the new system
Ready to repave the road to modern software?
Stop spending millions maintaining the past. Let Repave.ai transform your legacy codebase into a modern, tested, maintainable application — in a fraction of the time and cost.
Free Assessment
Upload your codebase and get a free modernization readiness report.
Proof of Concept
We'll modernize a subset of your system to prove the approach works.
Full Modernization
End-to-end transformation with ongoing support and knowledge transfer.