Alexandre Saumier Demers
Creates an overlap for the selected points.
Adobe Type Tools
Preview all base + mark glyph combinations.
David Jonathan Ross
Adjust left and right margins, with options for which glyphs in which fonts.
Jens Kutilek
A tool for anchor placement, accent preview, and component positioning.
LettError
Shows the ratio between the length of incoming and outgoing sections of bcps and tangents. This can help in preparing masters for interpolation.
Frederik Berlaen
Cascade windows inside RoboFont.
Alexander Lubovenko
Save all your open fonts every 600 seconds automatically.
Eduardo Manso
Adds guidelines for the current glyph’s bounding box.
Frederik Berlaen
Batch generate fonts in various formats.
BlackFoundry
Records all actions you are doing while designing.
Andy Clymer
Easily edit the PostScript hinting “Blue Zones”
Tal Leming
A framework used by other extensions to enhance their functionality.
David Jonathan Ross
Visualize the bounding box of your current glyph or selection.
Alexandre Saumier Demers
Draws a broad nib contrast from the background layer.
Alexander Lubovenko
Change character set in current font.
Jesen Tanadi
Check if lines connecting BCPs and oncurves are parallel and edit BCPs by manipulating connection line.
Gustavo Ferreira
Diff-compare font tables in two OpenType fonts.
Thom Janssen
Lock contours so you can not edit them.
Ben Kiel
Copies the selected glyphs from one open font to other open font(s).
Ben Kiel
Copies point smoothness from one font to another font(s) if glyphs are interpolatable.
Alex Jacque
Copies side-bearings from glyphs in one font to respective glyphs in another font.
Loïc Sander
A set of tools to work on corners of an outline.
Thom Janssen
Adding overlaps.
Jens Kutilek
A panel to adjust and balance curve handles.
Lukas Schneider
Live visualisation tool of the De Casteljau curve algorithm
CJ Dunn
Preview how a glyph will interpolate while drawing in RoboFont
LettError
Create and edit .designspace documents.
DrawBot
A powerfull 2D graphics scripting tool.
Ryan Bugden
A tool for visually manipulating your font info’s Dimensions values in Glyph View.
LettError
Makes switching glyph, space or font windows super easy.
Frederik Berlaen
Observes events and displays attributes which are available in the callback info dict.
Jan Šindler
A RF extension to add extrema on path under 45 degrees. Select curve & press cmd+shift+e
Ryan Bugden
Highlights points that are aligned with vertical metrics or guides.
Frederik Berlaen
Preview OpenType features.
FontTools Developers
The FontTools documentation as a RoboFont extension.
Frederik Berlaen
View and edit the current glyph .glif data.
Tal Leming
A live report about potential drawing issues in your glyph.
David Jonathan Ross
Search for glyphs using a variety of parameters.
LettError
A tool for browsing and selecting unicode values, glyphnames, categories, lists.
Frederik Berlaen
Build new glyphs using Glyph Construction language.
Lukas Schneider
GlyphGiffer lets you export glyphs from a folder of .ufo files as an animated .gif.
Thom Janssen
GlyphMorf is an experimental way for making parametric adjustments for a font.
Rafał Buchner
Tool made for exploring relationships between the components and glyphs.
Jens Kutilek
A glyph preview window that can be freely rotated.
Lukas Schneider
Simultaneously walk back and forth trough all fonts while showing the current glyph.
Frederik Berlaen
Gold fever, everything you space will be gold!
Loïc Sander
Preview spacing settings for several fonts at once.
Loïc Sander
Preview interpolation and extrapolation based on master position in a grid.
Andy Clymer
Preview an interpolation in the drawing window as you edit, see how the points move my adjusting the slider.
Alexander Lubovenko
Python scripts and Extensions for RoboFont
Cyrus Highsmith
Visualize and set italic angle and offset values, and skew and reposition glyphs accordingly.
Jérémie Hornus
Displays a slanted guide at the UFO’s italic on mouse down.
Franz Heidl
Transfer glyph sets across fonts in style.
Adobe Type Tools
Analyze and fix kerning consistency across several master fonts.
Alexander Lubovenko
Tools for working with kerning: KernObserver and KernTool.
Frederik Berlaen
Checks kerning in the UFO file and compares it with generated binary font.
Frederik Berlaen
Preview layers and test install separate layers.
Typotheque
Text-analysis tool for comparing multilingual texts and measuring the frequency of particular glyphs.
LettError
A tool for calculating gray levels at any point in a glyph.
Frederik Berlaen
A developer helper which shows internal RoboFont notification logs.
Jackson Showalter-Cavanaugh
See the glyph.markColor in the edit glyph window
Gustavo Ferreira
A tool to show the length and angle of handles.
RoboFont Mechanic
Package manager for RoboFont extensions.
Ben Kiel
Applies an encoding file’s glyph order when generating a font.
Frederik Berlaen
Outline strokes.
David Jonathan Ross
View an overlay of any glyphs from any font behind or beside what you are drawing.
Thom Janssen
Adds a PDF button to SpaceCenter.
Tal Leming
Interface for quickly pasting a glyph into the one you are currently drawing.
Frederik Berlaen
Perform boolean operations on contours.
Loïc Sander
Helper for using pens to transform glyph outlines.
Frederik Berlaen
Drawing with pixels.
Jack Jennings
A simple, centered, 'plumb-line' glyph guide.
Jérémie Hornus
Show selected BCP distances, number of contours and points, etc.
Jérémie Hornus
Converts Cubic (PostScript) to Quadratic (TrueType) contours.
Frederik Berlaen
Show neighbour glyphs when editing a glyph.
David Jonathan Ross
Generate random words to proof fonts in Space Center.
Jens Kutilek
Mark technical outline errors in your glyphs.
Jack Jennings
Simple, filesystem-based versioning.
LettError
Preview, edit and generate responsive lettering with svg/html/css/js.
Jens Kutilek
Edit and generate color fonts in various formats.
RoboFab Developers
The RoboFab Documentation as a RoboFont extension.
Frederik Berlaen
A developer profile tool.
Frederik Berlaen
Keep track of and share a project.
Frederik Berlaen
A polygon selection tool.
Tal Leming
An interactive Python interpreter for RoboFont.
Jack Jennings
Embedded to-do tracker with font- and glyph-scoped to-do items.
Frank Grießhammer
Joyful rotation of whole glyphs or selected outlines.
Frederik Berlaen
Save a version of UFO next to the current document.
Loïc Sander
Fiddle with proportions of a glyph while keeping stem widths consistent.
Timo Klaavo
Arrow tool for scaling curve segments while moving on-curve points.
Frederik Berlaen
Draw primitive shapes: rectangles and circles.
David Jonathan Ross
Display a readout of the unicode character represented by the current glyph, its hex unicode value(s), and unicode name.
David Jonathan Ross
Get a live readout of information about the mouse.
LettError
Colorful visualiser for RoboFont
Ryan Bugden
An Inspector panel for manipulating your glyph’s sidebearings.
Franz Heidl
Equalize sidebearings for given glyphs.
Frederik Berlaen
Slant glyphs without losing extreme points.
Yanone
Understand and improve your outlines with this curvature comb visualization.
Nina Stössinger
Change glyph name suffixes.
LettError
Tell Superpolator to update when saving a UFO.
Connor Davenport and Andy Clymer
Make and share glyph editor themes.
Rafał Buchner
UI hack, that helps you manage or get rid of default toolbar.
Nina Stössinger
Find touching/colliding glyph pairs.
Frederik Berlaen
Auto trace images.
Jens Kutilek
Display and delete hidden data in your UFOs.
Ben Kiel
Visually sets underline and strikethrough values for font info.
Jens Kutilek
Display Unicode name, block, and glyph name info in a window.
Alexander Lubovenko
Python scripts and Extensions for RoboFont
Alexandre Saumier Demers
A tool for drawing segments as sausages.
LettError
Highlight points that are very close to alignment zones.
Miguel Sousa
Use adhesiontext.com from within RoboFont
Gustavo Ferreira
Enable group spacing in the Space Center.
Frank Grießhammer
Show quick info about point selection.
Nina Stössinger
RoboFont extension for making test words.