Alternatives to Synapse for all platforms with any license

Listary

Listary is a revolutionary search utility for Windows that makes finding your files and launching applications blazing fast, for casual and power users alike!.

Freemium $ $ $ Windows PortableApps.com Windows Explorer
Windows Explorer integration Export to Excel Integrated Search Portable ... Quick Switch Windows Explorer extension Add a feature

190 Like
Alfred

Alfred is a quicklaunch application for Mac OS X, which aims to save you time in searching your local computer and the web.

Freemium Mac
Program Launchers File Searching Workflow Automation Add a feature

226 Like
Keypirinha

A lightning fast and flexible keystroke launcher for Windows. No installation required (portable). Extensible with Python3 plugins.

Free Windows
Lightweight Program Launchers Calculus solving Customizable ... File Searching Portable Add a feature

107 Like
RocketDock

RocketDock is a Mac OS X dock clone. It provides a nice clean interface to drop shortcuts on for easy access and organization. With each item completely customizable...
- Discontinued The program is no longer updated, but last version, 1.3.5, released in September 2008, can be still downloaded from the official website. "It is true, RocketDock has been discontinued. [...] The app remains available on https://rocketdock.com, but is unsupported."
Free Windows
Program Launchers Add a feature

272 Like
CerebroApp

Cerebro is an open source and free electron-based productivity software alternative to Alfred and Spotlight. It is focused on speed and good UI and UX. In most cases you...

Free Open Source Mac Windows Linux
Calculus solving Electron based Extensible by Plugins/Extensions Add a feature

31 Like
Find And Run Robot

FARR also lets you quickly run web searches, send email, manipulate files, control on-screen windows, and much more. Build and share custom commands or install plugins...

Freemium Windows
Program Launchers Customizable Plugin API Portable Add a feature

102 Like
Albert

Omnilauncher for Linux to help you quickly find and run apps and do other useful things.

Free Open Source Linux
Program Launchers Customizable Lightweight QT Based Add a feature

26 Like
kupfer

Kupfer is a command tool heavily inspired by Quicksilver ; you do not use it to search your files, you use it to summon an...
- Kupfer, though its development is stalled, is still very usable under current Ubuntu versions. Guest • Aug 2015 • 1 agrees and 0 disagrees
- Realy fast, doesn't crash like Synapse on xubuntu 16.04.5. Guest • Feb 2018
Free Open Source Linux
Program Launchers Configurable Extensible by Plugins/Extensions Support for Keyboard Shortcuts Add a feature

37 Like
RecentX

RecentX is an innovative launcher that gives you instant access to your files, folders, programs, websites & clipboard history. It automatically remembers your...

Commercial Windows
Program Launchers File Searching Bookmark History Clipboard monitoring ... Drag n drop Duplicate File Finder Windows Explorer integration File Tagging Folder-Search Folder Tagging Indexed search Local Search Portable Image Preview Tabbed interface Tag based Add a feature

93 Like
Executor

A multi purpose launcher and more advanced and customizable freeware windows run replacement and more. Executor is available also as a portable app and can be integrated...

Free Windows
Customizable Program Launchers Portable Add a feature

78 Like
Gnome Do

GNOME Do allows you to quickly search for many items present on your desktop or the web, and perform useful actions on those items. GNOME Do is inspired by...
- Discontinued The program seems to be no longer updated. Last version, 0.95.3, released on November 2014, can be still downloaded from Launchpad.
- Synapse, Kupfer, and Gnome Do are the three leaders in this category. Guest • Aug 2015 • 1 agrees and 0 disagrees
Free Open Source Linux
Program Launchers Add a feature

174 Like
Quicksilver

Quicksilver is a fast and free Mac OS X productivity application that gives you the power to control your Mac quickly and elegantly. Quicksilver learns your habits...

Free Open Source Mac
Program Launchers Add a feature

112 Like
Ulauncher

Fast application launcher for Linux. Custom shortcuts for web URLs and scripts. Extensions are coming soon.

Free Open Source Linux
File Searching Integrated Search Legacy addons support Add a feature

11 Like
LaunchBar

LaunchBar is a smart and powerful, keyboard driven productivity utility that lets you access and control every aspect of your digital life. Whatever you want to get done...

Freemium Mac
Program Launchers Add a feature

40 Like
Hain

Hain is an ALT + SPACE launcher for Windows that looks and works similar to Alfred.

Free Open Source Windows
Program Launchers Electron based File Searching Add a feature

11 Like