Tutorials and demos from the OpenLegacy community.
Modernize Mainframe Screen Application to Modern Web App
Modernizing Mainframe Screens into Modern API based Web Apps: A Step-by-Step Guide
OL-Code - A Web based IDE for Mainframe/AS400
OL Code is a free, lightweight, web-based IDE built specifically for legacy environments. It runs as a local server (JAR or Docker) and connects directly to your Mainframe or AS/400 over TCP/IP. No code leaves your environment. No heavy desktop client required. Just a browser. Once connected, your team gets a modern development experience on top of legacy code. * Browser and Navigate * Edit and Compile * AI Assistance
OpenLegacy Reverse API
OpenLegacy Reverse API overview via OL Code, which enable calling external services via Cobol generated Cobol to enable phased migration
OL-Terminal users overview
OL Terminal is a web-based emulator for mainframe (3270) and AS400 (5250) applications that runs entirely in the browser, eliminating desktop dependencies. Key features include: Traditional Navigation: Supports full keyboard mapping, function keys, and common terminal shortcuts. Customization: Offers dark/light modes, adjustable zoom, and session monitoring. Productivity Tools: Includes a macro recorder for automating repetitive tasks and a printer panel for managing AS400 spool files as PDFs. Developer Integration: Allows recording screen scenarios directly into OpenLegacy’s OHub for rapid API development.
SQOL - OpenLegacy's Universal SQL console for Legacy & Modern Databases
SQOL is a Universal SQL console for DB2, DB400 , IMS-DB , Oracle, MySQL, PostgreSQL. Work with your data anywhere — from mainframes to the cloud — in one secure, zero-install tool. Run queries, explore schemas, migrate data, and generate APIs from your browser.