Hop Gui overview
Hop Gui is where you build, run, preview and debug workflows and pipelines.
Before we start building, here’s a short tour so you know what you’re looking at.
Start Hop Gui
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Windows
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Linux, macOS
hop-gui.bat
./hop-gui.sh
The main window

There are two toolbars, and everything else is the work area.

The main toolbar, along the top, creates new files (pipelines, workflows, metadata), opens and saves them, and holds the run and preview controls for whatever you have open.
The perspectives toolbar, down the left-hand side, switches between the different things you can do in Hop Gui.
At the bottom left of the status bar you’ll find the active project and environment. You’ll use those in Projects and environments.
Perspectives
A perspective is a mode of the whole window. You’ll spend nearly all of your time in the first one, Data Orchestration, which is where pipelines and workflows are edited.
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Database (also as a floating window or bottom-dock tab)
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AI Assistant (also as a floating window or bottom-dock tab; off by default)
Project-wide search is not a left-toolbar perspective. Open it with CTRL-F (Edit → Find). See Search.
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Switch perspective by clicking its icon, or cycle through them with CTRL-SHIFT-arrow-up and CTRL-SHIFT-arrow-down.
Worth knowing early
- Click anywhere
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Most of Hop Gui is driven by clicking on empty canvas or on an item, which opens a context dialog with everything you can do from there. You’ll use it constantly in the next chapter.
CTRL-Fsearches everything-
Not just the open file: it searches metadata, pipelines and workflows across the project. See Search.
- There are shortcuts for most things
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See Keyboard Shortcuts.
| the Hop Gui section of this manual has the detailed tour, including how to hide parts of the UI for new users. |
Let’s build a pipeline.