The standard distribution ships with the following tools:
Documentation generator
The builtin document generator nim doc generates HTML documentation from .nim source files.
Nimsuggest for IDE support
Through the nimsuggest tool, any IDE can query a .nim source file and obtain useful information like the definition of symbols or suggestions for completion.
niminst
niminst is a tool to generate an installer for a Nim program.
nimgrep
Nim search and replace utility.
testament
Compiler test execution tools