by gcla

gcla / gowid

Compositional widgets for terminal user interfaces, written in Go, inspired by urwid.

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Terminal User Interface Widgets in Go

Gowid provides widgets and a framework for making terminal user interfaces. It's written in Go and inspired by urwid.

Widgets out-of-the-box include:

  • input components like button, checkbox and an editable text field with support for passwords
  • layout components for arranging widgets in columns, rows and a grid
  • structured components - a tree, an infinite list and a table
  • pre-canned widgets - a progress bar, a modal dialog, a bar graph and a menu
  • a VT220-compatible terminal widget, heavily cribbed from urwid :smiley:

All widgets support interaction with the mouse when the terminal allows.

Gowid is built on top of the fantastic tcell package.

There are many alternatives to gowid - see Similar Projects

The most developed gowid application is currently termshark, a terminal UI for tshark.


go get github.com/gcla/gowid/...


Make sure

is in your PATH (or
isn't set), then tab complete "gowid-" e.g.

Here is a port of urwid's palette example:

Here is urwid's graph example:

And urwid's fibonacci example:

A demonstration of gowid's terminal widget, a port of urwid's terminal widget:

Finally, here is an animation of termshark in action:

Hello World

This example is an attempt to mimic urwid's "Hello World" example.

package main

import ( "github.com/gcla/gowid" "github.com/gcla/gowid/widgets/divider" "github.com/gcla/gowid/widgets/pile" "github.com/gcla/gowid/widgets/styled" "github.com/gcla/gowid/widgets/text" "github.com/gcla/gowid/widgets/vpadding" )


func main() {

palette := gowid.Palette{
    "banner":  gowid.MakePaletteEntry(gowid.ColorWhite, gowid.MakeRGBColor("#60d")),
    "streak":  gowid.MakePaletteEntry(gowid.ColorNone, gowid.MakeRGBColor("#60a")),
    "inside":  gowid.MakePaletteEntry(gowid.ColorNone, gowid.MakeRGBColor("#808")),
    "outside": gowid.MakePaletteEntry(gowid.ColorNone, gowid.MakeRGBColor("#a06")),
    "bg":      gowid.MakePaletteEntry(gowid.ColorNone, gowid.MakeRGBColor("#d06")),

div := divider.NewBlank()
outside := styled.New(div, gowid.MakePaletteRef("outside"))
inside := styled.New(div, gowid.MakePaletteRef("inside"))

helloworld := styled.New(
            text.StyledContent("Hello World", gowid.MakePaletteRef("banner")),
            Align: gowid.HAlignMiddle{},

f := gowid.RenderFlow{}

view := styled.New(
            &gowid.ContainerWidget{IWidget: outside, D: f},
            &gowid.ContainerWidget{IWidget: inside, D: f},
            &gowid.ContainerWidget{IWidget: helloworld, D: f},
            &gowid.ContainerWidget{IWidget: inside, D: f},
            &gowid.ContainerWidget{IWidget: outside, D: f},

app, _ := gowid.NewApp(gowid.AppArgs{
    View:    view,
    Palette: &palette,



Running the example above displays this:


Similar Projects

Gowid is late to the TUI party. There are many options from which to choose - please read https://appliedgo.net/tui/ for a nice summary for the Go language. Here is a selection:

  • urwid - one of the oldest, for those working in python
  • tview - active, polished, concise, lots of widgets, Go
  • termui - focus on graphing and dataviz, Go
  • gocui - focus on layout, good input options, mouse support, Go
  • clui - active, many widgets, mouse support, Go
  • tui-go - QT-inspired, experimental, nice examples, Go


Gowid depends on these great open-source packages:

  • urwid - not a Go-dependency, but the model for most of gowid's design
  • tcell - a cell based view for text terminals, like xterm, inspired by termbox
  • asciigraph - lightweight ASCII line-graphs for Go
  • logrus - structured pluggable logging for Go
  • testify - tools for testifying that your code will behave as you intend



License: MIT

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