Note: nix-search-tv can provide similar functionality with additional config, and if you'd like a more unified UI that's not just focused on function lookup + highlighting I suggest checking it out!

A terminal UI for searching and browsing Noogle - the Nix function search engine. Search through Nix functions with fuzzy finding, preview documentation, and jump to source code.

• Fuzzy search through all Nix functions using fzf
• Flexible filtering - filter by any namespace prefix
• Initial query - start with a search term pre-populated
• Live preview of function documentation, type signatures, and examples
• Quick navigation: Jump to GitHub source code (Ctrl-O) or Noogle page (Ctrl-N)
• Offline caching - data cached for 24 hours
• Syntax highlighting via bat

nix run github:argosnothing/noogle-search

Add to your flake inputs:

{
  inputs = {
    noogle-search.url = "github:argosnothing/noogle-search";
  };
}

Use in your configuration:

# NixOS configuration.nix
{ inputs, pkgs, ... }:
{
  environment.systemPackages = [
    inputs.noogle-search.packages.${pkgs.stdenv.hostPlatform.system}.default
  ];
}

Start the search interface:

# Search all namespaces
noogle-search

# Start with a search query
noogle-search shell

# Filter to lib namespace
noogle-search -f lib

# Filter to lib namespace with initial query
noogle-search -f lib shell

# Filter to any prefix (e.g., lib.strings)
noogle-search -f lib.strings trim

# Filter to builtins
noogle-search -f builtins

# Filter to pkgs
noogle-search -f pkgs

Namespace Filters:

• Ctrl-L: Filter to lib.* functions only
• Ctrl-B: Filter to builtins.* functions only
• Ctrl-P: Filter to pkgs.* functions only
• Ctrl-A: Show all functions (remove filter)

Actions:

• Ctrl-O: Open function source code on GitHub
• Ctrl-N: Open function page on Noogle.dev
• Ctrl-/: Toggle preview pane

When you apply a filter with -f or --filter:

• Only functions matching that prefix are shown
• The prefix is stripped from the display (e.g., "optionalString" instead of "lib.optionalString")
• You can filter by any prefix, not just top-level namespaces
• Functions are matched by their primary title, not aliases from other namespaces

noogle-search uses a cache to avoid excessive calls to noogle on a 24h timer in ~/.cache/noogle-search

• Data provided by Noogle.dev
• the Nix function search engine by @hsjobeki.
• The clankers who did most of the work.

• fzf - fuzzy finder
• bat - syntax highlighting (optional, falls back to plain text)
• xdg-open - opening URLs in browser