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fish vs zsh-autosuggestions: catalog facts
fish	zsh-autosuggestions
Best for: An interactive shell that is pleasant immediately, with nothing to configure	Best for: Zsh users who want Fish-style command suggestions
Free Free and open source under the GPL.	Free Free and open source.
macOS, Linux, Command line	macOS, Linux, Command line
Autosuggestions from history appear as you type with no plugins Syntax highlighting shows an invalid command before you run it All 4 strengths for fish Autosuggestions from history appear as you type with no plugins Syntax highlighting shows an invalid command before you run it Tab completions generated from man pages, so they cover real options Works well with no configuration file at all	Fish-like suggestions from command history Fast and unobtrusive All 4 strengths for zsh-autosuggestions Fish-like suggestions from command history Fast and unobtrusive Works with common Zsh plugin managers Configurable strategies and highlight style
Not POSIX-compatible, so bash snippets and scripts often need changing No official Windows build All 4 limitations for fish Not POSIX-compatible, so bash snippets and scripts often need changing No official Windows build A smaller plugin ecosystem than zsh Minimum supported macOS version is 10.12	Zsh only Suggestions come from history, so they are only as good as what you have typed before
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License: MIT
No account needed	No account needed
Offline features available	Offline features available
Official website Full listing and sources Sources for fish github.com/fish-shell/fish-shell Catalog checked September 21, 2026	Official website Full listing and sources Sources for zsh-autosuggestions github.com/zsh-users/zsh-autosuggestions Catalog checked September 24, 2026

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