A disassembler is a software tool that allows you to break down a program's code into its individual instructions. It is commonly used to reverse engineer an application and understand how it works. Some synonyms for disassembler include decompiler, dissolver, disintegrator, and breakdown tool. A decompiler is a type of disassembler specific to converting compiled programs back into source code. A dissolver is a disassembler that breaks down a program into smaller components. A disintegrator is a disassembler that breaks down a single entity into smaller components. A breakdown tool is a generic name for any disassembler that breaks down a complex entity into smaller, more manageable parts.