When comparing Alfred vs Hazel, the Slant community recommends Alfred for most people. In the question“What are the best power user tools for macOS?” Alfred is ranked 5th while Hazel is ranked 14th. The most important reason people chose Alfred is:
Allows the creation of automated workflows by connecting keywords, hotkeys and actions together without writing code.
Specs
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Pros
Pro Can create custom automated workflows
Allows the creation of automated workflows by connecting keywords, hotkeys and actions together without writing code.
Pro Full keyboard controls
You can do everything using just the keyboard.
Pro Built-in calculator
Alfred is able to handle simple mathematical commands and more extensive expressions alike. Pressing Enter copies the result to the clipboard.
Pro Integrates with 1Password
Alfred allows getting secure and fast access to your 1Password 1Click bookmarks.
Pro Lightweight and smooth
Alfred is a lightweight application for OS X and runs smoothly, even on older devices.
Pro Versatile search
Quickly search for files, applications and web services from the same input.
Pro Productivity booster
Helps speed up your working day one shortcut at a time.
Pro Clipboard history
Alfred offers a clipboard with an extensive history for quick access to your copied text, images and links.
Pro Entry of everything
Pro Allows theming
Alfred allows adjusting colors, fonts, sizes and more to create new themes.
Pro Offers both a free version and a paid version available
The paid version is more customizable, but the free version is still very powerful.
Pro Automatically cleans up and maintains folders
Hazel watches whatever folders you tell it to, automatically organizing your files according to the rules you create. Have Hazel move files around based on name, date, type, what site/email address it came from (Safari and Mail only) and much more. Automatically put your music in your Music folder, movies in Movies. Keep your downloads off the desktop and put them where they are supposed to be.
Pro Very customizable
More so than alternatives.
Pro Cleans up after uninstalling an application
When you delete an application Hazel will pop up and show you a list of attached files belonging to the deleted app to clean your uninstall more correctly.
Pro iLife Support
Hazel features new actions to import your files into iPhoto or iTunes. And with Hazel 3, you can import into Aperture projects and folders as well.
Pro Process files depending on their content
Its in-file search criteria allows it to extract dates from files (e.g., to add to the filename) and to categorize recurrent files (e.g., receipts) into subfolders (or to treat them in some specific way).
Cons
Con Many features require the $25 powerpack add-on
Features like custom workflows, clipboard history, 1Password integrations and others require the powerpack add-on.
Con Expensive
Con Doesn't work well with subfolders
The rules don't work very well with subfolders and working with archive files (zip, rar, gz, 7z, etc) is also limited.
Con Rules creation is a time consuming process
To really enjoy the power of Hazel, you will need to progressively create more and more rules to manage each specific kind of file, but this process is slow, quite annoying when you have many similar rules, and can only be learned on the way, as you find new uses for it.