RadASM

RadASM is freeware Integrated development environment for 32-bit assemblers for Windows. It's been written by Ketil Olsen (KetilO).

Features
* Syntax highlighting
* Good help files integration
* Projects (own .rap format)
* Resource editor
* Make commands
* Output window
* Integrated debugging
* IDE customization
* Macros, templates, snippets, text links
* Add-in support
* Tutorials

Assemblers supported
* MASM
* FASM
* NASM
* TASM
* HLA
* GoAsm

Alternative assembler IDEs
* Fresh
* AsmEdit
* WinAsm Studio
* EasyCode