Legacy System Modernization

Migration of legacy software (Visual Basic, FoxPro, Access) to Modern Web

Safeguard the accumulated business logic of your legacy software. We rewrite critical desktop management systems built in VB6, Visual FoxPro, Clipper, Delphi, or Access into modern cloud web architectures (React, Node.js, PostgreSQL) migrating data with zero downtime.

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ILLUSTRATIVE DEMO

An example of what we can build

Illustrative demo with sample data: it is not a ready-made product. We build each system to fit your operation, and the modules, rules and integrations are defined in the discovery phase.

Time Machine: Comparador Antes vs Después (Migración Legacy)

Garantía: Cero Caídas · Migración en Paralelo

⚠️ Tu Sistema Actual (Desktop 2002)Visual Basic 6 / FoxPro / Access

SISTEMA_GESTION_V3.8 - [MÓDULO VENTAS & STOCK]

ArchivoEdiciónReportesAyuda

C:\SISTEMAS\DATA\INVENTAR.MDB (184.200 Registros)

⚠️ Base de datos local mono-usuario en servidor de oficina física.

Tiempo de carga habitual: 12 a 45 segundos

Tu Nuevo Sistema Cloud Deepyze (2026)Next.js · PostgreSQL · Multi-Tenant

app.tuempresa.com/reportes-en-vivo

Latencia: 38ms

Facturación Hoy

$ 4.820.000

+18% vs mes anterior

Usuarios Concurrentes

142 Activos

Cero bloqueos de tabla

Hacé clic en el botón de abajo para probar la velocidad de la versión Cloud.

Metodología de Migración en Paralelo (Cero Riesgo de Frenos Operativos)

Fase 1: Semanas 1 a 4

Replicador de Datos en Tiempo Real

Conectamos un agente liviano a tu base de datos vieja (SQL, Access, FoxPro). Cada venta se replica en la nube sin tocar tu software actual.

Fase 2: Semanas 5 a 8

Operación Dual & Validación de Saldos

Tu equipo prueba el nuevo sistema en paralelo. Se cotejan saldos, facturas y stock al centavo hasta tener 100% de confianza.

Fase 3: Día de Cut-over

Apagado Seguro del Servidor Viejo

Se hace el switch final un fin de semana. El lunes la empresa arranca 100% en la nube sin perder un solo comprobante histórico.

¿Tenés un sistema viejo que nadie se anima a tocar? Modernizamos tu operación a la nube con garantía contractual de cero frenos.

Cotizar Migración de Sistema

Why Deepyze for your Legacy System Modernization?

We work with industry best practices to guarantee real results.

Complete preservation of business rules

We audit original codebases to extract every calculation, validation rule, and edge case accumulated over decades. No operational knowledge gets lost in translation.

Zero-loss historical data migration

We convert obsolete database files (DBF, MDB, legacy flat files) into modern relational schemas in PostgreSQL, cleansing and normalizing historical records.

Anywhere web & mobile accessibility

Break free from local Windows workstations locked to local networks. Staff can now securely log in from web browsers, Macs, tablets, and phones.

Modern stack: React, Node.js & PostgreSQL

Engineered using resilient cloud architectures, ensuring blazingly fast response times, modular clean code, comprehensive documentation, and effortless future upgrades.

Say goodbye to FoxPro & Access 2GB file caps

Eliminate constant dread over corrupted table indexes, multi-user file lock crashes, and file size limits that threaten business continuity.

Phased rollout via Strangler Fig pattern

We deploy module by module while maintaining real-time bidirectional synchronization between old and new systems, guaranteeing zero operational downtime.

How we build your Legacy System Modernization

A clear and transparent method so you always know which stage your project is at.

Reverse engineering & legacy audit

We analyze existing source code (VB6, FoxPro, Delphi, Access macros), map actual operational workflows, and inspect legacy table schemas.

Modern architecture & UX design

We model a normalized PostgreSQL database and design an intuitive web user experience that feels familiar to your long-time operators.

Modular development & parallel testing

We build the solution incrementally, running parallel simulations comparing legacy and modern system outputs until reaching 100% parity.

Cutover migration & legacy sunset

We run final data extraction scripts during a planned maintenance window, train your workforce, and decommission the old legacy systems.

How much does it cost?

It depends on the scope: we define it together in a free discovery meeting and send you a fixed-price proposal.

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Frequently asked questions about Legacy System Modernization

Everything you need to know before starting

Yes, absolutely. We apply an incremental migration methodology (Strangler Fig pattern) using bidirectional synchronization. Your team continues operating as usual while modern web modules are phased in gradually.

It depends on the scope: we define it together in a free discovery meeting and send you a fixed-price proposal.

This is the reality in more than 80% of our projects. Our senior engineers reverse engineer the original source code, forms, and database files directly to document and replicate every operational rule.

We engineer high-performance web frontends with React / Next.js, robust backends in Node.js / TypeScript with clean REST APIs, and relational PostgreSQL databases deployed in secure cloud VPCs (AWS, Azure, or private servers).

Yes. We reproduce all accounting reports, fiscal ledgers, and official documents into high-definition vector PDFs, ready for instant preview, download, or direct printer dispatch.

Not a single record is lost. We craft robust ETL scripts that sanitize, validate relational foreign keys, fix corruption, and import complete historical records into the new relational database.

Productos que construimos

No es teoría: es software propio en producción

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Precio cerrado

Cotizamos con alcance y precio cerrados. Sabés cuánto cuesta desde el día uno, sin sorpresas.

El código es 100% tuyo

Al finalizar, el repositorio, la infraestructura y la documentación quedan completamente a tu nombre.

Mismo huso horario

Trabajamos en horario de negocio de Sudamérica. Reuniones y respuestas sin delays por diferencia horaria.

Propuesta en 24-48 h

Después de la primera reunión recibís una propuesta detallada por escrito, sin compromiso ni letra chica.

Damián Oliva

Fundador de Deepyze

Trabajás directo con quien construye. Años desarrollando productos digitales en LATAM, certificado en Google Cloud Machine Learning.

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