ArcHub: Graphic Art
Free resources and open-source creative tools
Reference
Dimensions.com - an ongoing reference database of dimensioned drawings documenting the standard measurements and sizes of the everyday objects and spaces that make up our world.
Drawing & Painting
Instruction
How To THINK When You DRAW [website] [ebook] by the Etherington brothers
How to THINK when you draw JUNIOR [ebook] How to Draw Comics by the Etherington brothers
Kawaii Doggies [ebook], Kawaii Kitties [ebook], & Kawaii Underwater World [ebook] by Olive Yong
Watercolor
Watercolor Paint Making [ebook]
Watercolor Flowers [ebook], Wildlife [ebook], Portraits [ebook], & Food [ebook]
Tools
Krita.org [software] - a professional FREE and open source painting program made by artists that want to see affordable art tools for everyone.
MyPaint.app - an easy, nimble, and distraction-free tool for painting and sketching from scratch
Paintroid/PocketPaint [app] - a graphical paint editor application for the Android platform
Excalidraw - Generic, intuitive, in-browser sketching tool for quick concepting.
Akira [software] - Offline generic sketching tool, also great for concepting.
DrawPile - collaborative drawing program that lets multiple people draw, sketch, paint and animate on the same canvas simultaneously
Photography
Photoskop.com [website] - explore the world of photography by interactive learning.
GIMP (GNU Image Manipulation Program) [software]
One of the most popular Photoshop alternatives with an impressive feature set and versatility.
RapidRAW - Modern, high-performance Lightroom alternative with a beautiful interface.
Darktable.org - Virtual lightroom and darktable for photographers, allows for processing of raw image files.
RawTherapee.com - Like Darktable with a steeper learning curve, but with excellent HDR and tonemapping capability.
ART - A popular fork of RawTherapee with the purpose of simplifying the UI while keeping functionality in tact.
DigiKam.org - Tool for sorting and organizing expansive collections of photos, with batch editing features.
Immich.App - Self-hostable image and video management solution.
Memories - A beautiful Nextcloud app that provides a private and powerful, self-hosted photo management suite.
HDRView - High-dynamic range image viewer for viewing and comparing images with support for many file types, 10-bit displays, and Apple EDR
Siril - Advanced astronomical image processing for space photographers. Provides calibration, enhancement, and more.
Hugin - Panoramic imaging toolchain for stitching photos together.
Curtail - Handy image compressor for Linux.
pngquant - Efficient command line utility for compressing PNG files.
PhotoSwooper [app] Swipe through your photos to decide what to keep or delete
Royalty-Free Media
Pixabay.com
royalty-free images & royalty-free stock.
Pexels.com
free stock photos, royalty free images & videos shared by creators.
TheNounProject.com
Free Icons and Stock Photos, Made by Humans
OpenVerse.org
extensive library of free stock photos, images, and audio, available for free use.
IllustrationKit.com
free illustrations for personal & commercial projects. No attribution required.
Highlights.Design
a hand-drawn illustration library