Ruwa

Open-source painting software·accretion.pro

Ruwa is a free, open-source desktop painting application for Windows. It combines a responsive canvas, customizable brushes, layer-based editing, and a focused interface built to keep the creative process moving. It includes tools such as a Brush Editor, Smudge and Liquify, non-destructive layer effects, an infinite canvas, and a spectral color-mixing engine.

What it's for

Digital painting and drawingCustom brush creation and editingLayer-based image editingPhoto/image touch-up via Smudge and LiquifyReference organization via Board LayersAdding and editing text directly on canvas

Features 17

Alpha masks, clipping layers, layer masks, blend modes, folders
Autosave and .rwf project format
Board Layers for reference images
Brush Control for on-the-fly size/opacity adjustment
Custom input curves for brush parameters
Custom renderer with tiled processing and screen-space rendering
Customizable brush editor (shape, texture, spacing, flow, dynamics)
Fast, memory-efficient Undo/Redo
Free Transform and Warp for layers
Import/export of .rbf brushes and import of Photoshop .abr brushes
Infinite/expandable canvas
Interface customization (theme, welcome artwork, scale)
Lasso Fill, Smart Fill tools
Non-destructive layer effects
Smudge and Liquify tools
Spectral color mixing engine
Text on Canvas editing tool

At a glance

free tieropen source

TypeDesktop app

DeploymentInstalled (local)

PlatformsWindows

CompanyAccretion

Integrations

Photoshop

Resources

Pricing

Ruwa is entirely free with no paid tiers, subscriptions, or locked features.

FreeFree

Ruwa is completely free for everyone.