Delphi Migration Tool: Moving Legacy Apps to the Web

Hand-migrating a Delphi application is slow because most of the work is repetitive: reading VCL forms, matching fields to data modules, and rebuilding the same CRUD screens over and over. A Delphi migration tool automates exactly that repetition — so the human effort goes where it matters, into the business logic.

What a migration tool actually does

• Parses the source: reads .pas/.dfm units and maps forms, components, and data modules into a structured inventory.
• Scaffolds the target: generates React + TypeScript components and Node.js API routes that mirror the original screens and queries.
• Preserves logic: business rules, validations, and calculations are extracted and ported deliberately — never guessed.
• Keeps a trail: every mapped unit is tracked so nothing silently disappears between old and new systems.

Why tooling makes migration safer

The risk in any migration is drift — the new app behaving differently from the old one without anyone noticing. Tooling removes the mechanical drift: generated screens match the originals, generated endpoints match the data layer, and the verification step compares outputs instead of eyeballing screens. Your team reviews decisions; the tool handles the transcription.

A migration tool doesn't replace the developer — it replaces the typing, so the developer can do the thinking.

How Uphill Tech uses it

We built an LLM-assisted Delphi migration toolkit that feeds a staged process: inventory the application, rebuild the modules in React + Node.js, migrate and verify data, run both systems in parallel, then cut over. Tooling accelerates each stage without skipping the checks that keep your business running. If your Delphi application is still doing the daily work, the tool exists — and so does a safe path to the web.