This is an automated archive made by the Lemmit Bot.

The original was posted on /r/opensource by /u/ErrorAtLine0 on 2026-01-26 09:26:50+00:00.

I wanted to share my progress on a program I’ve been working on for a bit less than a year now. InfiniPaint is a collaborative, infinite canvas note-taking/drawing app. The biggest distinguishing feature of this application is that there is no zoom in or zoom out limit. This means that this app is very good at things such as drawing sketches of the solar system to scale, or just drawing any massive objects with tiny details. Of course, even though this is a feature, this app is also perfectly well suited for use as a normal canvas.

Features

  • Infinite canvas with infinite zoom
  • Open online lobbies for collaboration
    • Text chat with others in the lobby
    • Jump to the location of other players through the player list
    • See other members draw in real time
    • Although this is a feature, you can also choose to completely forget about it. This app can be used offline
  • Graphics tablet support (Pressure sensitive brush and eraser detection)
  • Layers with blend modes and opacity. Layers can be sorted into folders with their own blend mode and opacity
  • Save/load projects
  • Saveable color palettes
  • Quick menu usable by right clicking on the canvas, which can be used to:
    • Quickly change brush colors using the currently selected color palette
    • Rotate the canvas
  • Place bookmarks on the canvas to jump to later. Bookmarks can be sorted into folders
  • Undo/Redo
  • PNG, JPG, WEBP export of specific parts of the canvas at any resolution (Screenshot)
  • SVG export of specific parts of the canvas (Screenshot)
  • Transform (Move, Scale, Rotate) any object on the canvas (Rectangle Select Tool/Lasso Select Tool)
  • Display Images and animated GIFs on the canvas
    • Note: May take a lot of memory to store and display images compared to other objects, especially GIFs
  • Hide (or unhide) the UI by pressing Tab
  • Remappable keybinds
  • Create custom UI themes
  • Place infinite square grids on the canvas as guides for drawing
    • Grids come with various properties, including changing color, and displaying coordinate axes
  • Textbox tool with formatting support (Bold, italics, underline, strikethrough, overline, fonts, text color, highlight color, text size, paragraph alignment, text direction)
  • Other tools: Rectangle, Ellipse, Line, Eye dropper/color picker, Edit/cursor
  • Can copy/paste selected objects (Ctrl-C Ctrl-V). This can also be done between different files, as long as they’re open in different tabs in the same window

Github

InfiniPaint is a native application written in C++ and licensed under the MIT License. You can find the source code on Github at: github.com/ErrorAtLine0/infinipaint

Download

This application is available for Windows, macOS, and Linux. Download at: infinipaint.com/download.html

Try Online

You can try a (slightly restricted) version of InfiniPaint in your browser at: infinipaint.com/try.html (requires a WebGL2 capable browser, designed for desktops, and might take a while to load)