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Quicksilver vs RustCast: catalog facts
Quicksilver	RustCast
Free Free and open source, maintained by a community of developers.	Free Free and open source under the MIT licence, with optional GitHub sponsorship.
macOS	macOS
Acts on files and apps, not only launching them Hundreds of plugins	Launcher, calculator, clipboard history and unit conversion behind one hotkey Runs custom shell scripts and aliases through modes
macOS only The action-based workflow takes time to learn	macOS only Smaller plugin ecosystem than established launchers
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: MIT
No account needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.