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Head-to-head · Command-Line Shells

Fish vs PowerShell

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score Fish #3 in Command-Line Shells 8.7/10 Free plan Free plan✓ 2 of 3 features Visit Fish
PowerShell #8 in Command-Line Shells 7.9/10 Free plan Free plan✓ 3 of 3 features Visit PowerShell

Fish leads on 0 checks, PowerShell on 1, and 3 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 scoreFish · 8.7/10
  • Free planboth
  • Most featuresPowerShell · 3 of 3

Fish scores higher on our rubric for command-line shells: 8.7 against 7.9 out of 10; our editors rank them #3 and #8.

PowerShell offers package manager; Fish doesn't.

Fish is the better fit for interactive users seeking suggestions and rich completion. PowerShell is the better fit for cross-platform system administration and automation.

  • Fish fits best

    Interactive users seeking suggestions and rich completion

  • PowerShell fits best

    Cross-platform system administration and automation

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Side by side

Feature Fish 8.7/10 Visit ↗ PowerShell 7.9/10 Visit ↗
At a glance
Editor score 8.7 7.9
Ranking #3 in Command-Line Shells #8 in Command-Line Shells
Best for Interactive users seeking suggestions and rich completion Cross-platform system administration and automation
Pricing model Free Free
Starting price Free plan Free plan
Free plan ✓ ✓
Free trial — —
Deployment Self-hosted Self-hosted
Platforms macOS, Linux, Windows Windows, macOS, Linux
Support Docs, Community Community, Docs
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Fish 2/3 · PowerShell 3/3
Package manager — ✓ (best)
Config file support ✓ ✓
Command completion ✓ ✓
Specs
Supported platforms macOS, Linux, BSD, and Windows environments (WSL, Cygwin, MSYS2) Windows, macOS, Linux
Scripting language fish PowerShell
Our review
Pros
  • 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.
  • Runs on Windows, macOS, and Linux.
  • Cmdlets support resource management and automation.
  • Handles JSON, CSV, and XML with built-in tab completion.
Cons
  • 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.
  • Its PowerShell language may not suit teams standardized on another shell.
  • Package discovery and installation run through PackageManagement.
  • Support channels are community and documentation.
Our verdict

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 →

PowerShell brings an interactive command-line shell, a scripting language, and automation and configuration tooling into one open-source product. It is suited to administrators and developers who need to manage system or application…

Read the review →
  1. FishCommand-Line Shells 8.7Free plan
  2. PowerShellCommand-Line Shells 7.9Free plan

Strengths and trade-offs

  • 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.

  • PowerShell — where it wins

    • Runs on Windows, macOS, and Linux.
    • Cmdlets support resource management and automation.
    • Handles JSON, CSV, and XML with built-in tab completion.

    Where it doesn't

    • Its PowerShell language may not suit teams standardized on another shell.
    • Package discovery and installation run through PackageManagement.
    • Support channels are community and documentation.
  • Fish8.7/10 · Free plan

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

    Visit FishFull verdict →
  • PowerShell7.9/10 · Free plan

    An open-source shell that pairs resource-management cmdlets with cross-platform automation.

    Visit PowerShellFull 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