Anchors Palette
This plugin enables a panel which shows the anchor position in the selected glyphs so you can check for example if some anchors are on the same height. You can also adjust its position.
By Tim Ahrens
Arrange Windows
This plugin arranges (captain obvious) different opened windows into the same screen or in different ones if you are using an external screen.
Stem Thickness
Stem Thickness obviously shows the thick is the stem in a pointed place. Easy and useful.
Synced Tabs
Synced Tabs keeps in sync all tabs from open fonts which allows you to work on different styles at the same time.
Space Bar
Space Bar gives you a lot more insight into the space of your fonts, specially when you are working on a font with multiple masters. It shows you the defined instances of your font and they are represented by curves. So you can work on one master but controlling somehow the other master values and the general project.Space Bar makes information visible, is a visualization tool.
Show Next Font Anchors
This plugin compared anchors used in two different fonts. Shows in light orange the anchors used in the glyph of the next font and in gray the current font anchors. If names and quantity matches it will show a “Ok” message in green.
Show Interpolations
Show Interpolations calcules all active instances and draws them behind your paths using a transparent lavender color. It also allows you to align these instances to a selected node.
By Mekkablue
Freemix
Freemix is a group of useful free scripts for Glyphs. This pack includes the following scripts: Delete all hints, Expand Kerning, Insert Glyph to Background, Insert Glyph, Mask to Master, Paste Background, Remove Backup Layers, Symmetrify, Round Kerning.
Show Tops and Bottoms
This plugin displays each top and bottom value for each Glyph in the edit view and marks them red when they are not inside the alignment zone.
By Mekkablue
Inspect Metrics
Inspect Metrics is a little script for Glyphs which shows a simple overview of metrics across all masters. The information is shown as an ASCII metrics visualizer.
By SetupType