hlasm

Visual Studio Code Extension for COBOL, JCL and MF Directive Files

• Updated Sep 9, 2026
• TypeScript

A small language makes assembly less painful.

• Updated Jul 8, 2022
• Haskell

Code4z is a mainframe pack for Developers working with z/OS applications

• Updated Nov 11, 2025
• Shell

Idea plugin for z/OS development

• Updated Jun 8, 2019
• Java

This is a hash table implementation written entirely in IBM z Assembly. The Hash Table is mapped and saved to a z/OS VSAM linear dataset.

• Updated Jan 23, 2022

Here you can find a set of useful tools, macros and data structure access methods written in IBM Z assembly.

• Updated Dec 23, 2021

I/O Macros for HLAsm (IBM Assembler)

• Updated Dec 14, 2021

Cobol subprograms which can be used for certain HLASM instructions. For example, to replace an ASM program.

• Updated May 16, 2024
• COBOL

z/OS plugins for the Sublime Text editor

• Updated Jan 23, 2024
• Python

z/OS HLASM Key-Value Store — persistent hash table in IBM High-Level Assembler with VSAM LDS persistence and JCL build/test pipelines

• Updated Apr 10, 2026
• Assembly

• Updated Feb 24, 2026
• OCaml

Mainframe Package Bureau. Package manager for COBOL, HLASM, REXX, PL/I, Fortran, RPG and UNISYS languages

• Updated Mar 26, 2026
• C

A link-edit high level assembler for use in RPG2 programming language

• Updated Apr 14, 2026

Column-aware HLASM syntax highlighting plugin for Notepad++

• Updated Aug 24, 2026
• C++