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Head-to-head · Command-Line Shells

Zsh vs Fish

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score Zsh #2 in Command-Line Shells 8.8/10 Free plan Free plan✓ 2 of 3 features Visit Zsh
Fish #3 in Command-Line Shells 8.7/10 Free plan Free plan✓ 2 of 3 features Visit Fish

Zsh leads on 0 checks, Fish on 0, and 4 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreZsh · 8.8/10
  • Free planboth

Zsh scores higher on our rubric for command-line shells: 8.8 against 8.7 out of 10; our editors rank them #2 and #3.

Zsh is the better fit for users who want advanced Unix shell customization. Fish is the better fit for interactive users seeking suggestions and rich completion.

  • Zsh fits best

    Users who want advanced Unix shell customization

  • Fish fits best

    Interactive users seeking suggestions and rich completion

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. How we rank.

Side by side

Feature Zsh 8.8/10 Visit ↗ Fish 8.7/10 Visit ↗
At a glance
Editor score 8.8 8.7
Ranking #2 in Command-Line Shells #3 in Command-Line Shells
Best for Users who want advanced Unix shell customization Interactive users seeking suggestions and rich completion
Pricing model Free Free
Starting price Not published Not published
Free plan ✓ ✓
Free trial — —
Deployment Self-hosted Self-hosted
Platforms Linux, macOS, Windows macOS, Linux, Windows
Support Community, Docs Docs, Community
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Zsh 2/3 · Fish 2/3
Package manager Not published —
Config file support ✓ ✓
Command completion ✓ ✓
Specs
Supported platforms Unix; Windows via Cygwin macOS, Linux, BSD, and Windows environments (WSL, Cygwin, MSYS2)
Scripting language Zsh shell scripting language fish
Our review
Pros
  • Programmable completion and multi-line command editing
  • Advanced filename globbing, arrays, arithmetic, and spelling correction
  • Customizable prompts and options through startup files
  • Highlights command syntax and suggests commands from history, completions, and file paths.
  • Offers navigable tab completion plus general and command-specific scripted completions.
  • Includes fish scripting, built-in help, and browser-based configuration.
Cons
  • Windows support is through Cygwin rather than a standalone current port
  • Requires compiling from source on modern Unix systems
  • Community and documentation are the listed support channels
  • Uses its own fish scripting language rather than a listed alternative shell language.
  • Support channels are documentation and community.
  • Does not include AI features or a package manager.
Our verdict

Zsh is a freely available command interpreter designed for interactive use and scripting. It suits people who want to tailor a Unix command-line environment, from individual users to teams across company sizes. Its shell scripting language…

Read the review →

Fish is a free, open-source command-line shell for people who value interactive guidance while working in a terminal. It runs on macOS, Linux, BSD, and Windows environments including WSL, Cygwin, and MSYS2. Syntax highlighting,…

Read the review →
  1. ZshCommand-Line Shells 8.8Free plan
  2. FishCommand-Line Shells 8.7Free plan

Strengths and trade-offs

  • Zsh — where it wins

    • Programmable completion and multi-line command editing
    • Advanced filename globbing, arrays, arithmetic, and spelling correction
    • Customizable prompts and options through startup files

    Where it doesn't

    • Windows support is through Cygwin rather than a standalone current port
    • Requires compiling from source on modern Unix systems
    • Community and documentation are the listed support channels

  • Fish — where it wins

    • Highlights command syntax and suggests commands from history, completions, and file paths.
    • Offers navigable tab completion plus general and command-specific scripted completions.
    • Includes fish scripting, built-in help, and browser-based configuration.

    Where it doesn't

    • Uses its own fish scripting language rather than a listed alternative shell language.
    • Support channels are documentation and community.
    • Does not include AI features or a package manager.
  • Zsh8.8/10 · Free plan

    A free, customizable shell for users who want advanced command-line control.

    Visit ZshFull verdict →
  • Fish8.7/10 · Free plan

    Fish pairs history-based suggestions with rich completion and a browser-based configuration interface.

    Visit FishFull verdict →

More comparisons

All Command-Line shells comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update