Concepts is described as 'The digital design sketchbook of the future. It’s powerful, flexible and smart, so you can go from quick sketches to beautiful and precise illustrations in a single app. Enhance your creative capabilities with our infinite canvas, flexible multi-touch shape guides' and is a digital painting tool in the photos & graphics category. There are more than 25 alternatives to Concepts for a variety of platforms, including iPad, Mac, iPhone, Windows and Android apps. The best Concepts alternative is Inkscape, which is both free and Open Source. Other great apps like Concepts are Krita, Affinity, Microsoft OneNote and Xournal++.
Open source vector graphics editor with SVG support. Offers tablet support, non-destructive editing, and live previews. No registration needed, works offline, extensible with plugins, and provides privacy-focused, ad-free experience across multiple platforms.
Free, open-source painting software designed by artists for artists. Offers customizable UI, 9 brush engines, color management, tablet support, non-destructive editing, and privacy features. Portable and available on major platforms, supporting seamless texture creation.
Unified design solution merging advanced photo, vector, and layout tools for seamless workflow, non-destructive editing, RAW support, batch processing, AI enhancements, GPU acceleration, file compatibility, cloud asset integration, and tailored workspace options.
Comprehensive digital notebook offering organizers, shared notes, multi-device syncing, and optical character recognition, plus cloud-based data management for efficient information handling and accessibility.
Handwritten note-taking and PDF annotation using pen input and pressure sensitivity, shape drawing, customizable toolbar layouts, image insertion, audio recording, multi-language options, LaTeX integration, and complete export in PDF or PNG formats across all platforms.
Procreate is a versatile, award-winning app for creative digital drawing and painting on iOS. It delivers a robust, professional toolset with hundreds of configurable brushes, a powerful layering system, vector graphic tools, and comprehensive design capabilities, ensuring desktop-level flexibility and power.
Butterfly is a note-taking app where your ideas come first. You can paint, add texts, and export them easily on every device. This app works on android, windows, linux, and in the web.
Rnote aims to be a simple but functional note taking application for freehand drawing or annotating pictures or documents. It eventually should be able to import / export various media file formats.
A (work-in-progress) cross-platform libre notes app. Please note that this app is still in early stages and not ready to trust with your notes yet.
Graintouch is a drawing app with the soul of print. Inspired by Risograph™ aesthetics, it lets you layer, blend, and create with the warmth of real ink—right on your screen.
Lorien is an infinite canvas drawing/note-taking app that is focused on performance, small savefiles and simplicity. It's not based on bitmap images like Krita, Gimp or Photoshop; it rather saves brush strokes as a collection of points and renders them at runtime (kind of...
Experience "digital paper" with seamless note-taking on iOS devices. Annotate PDFs, PowerPoint, and Word, plus organize notes in unlimited folders. Enjoy searchable handwritten notes that sync across devices with iCloud, intuitive QuickNote feature, and customizable templates.
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There's a paywall for exporting it in SVG, PNG, PDF.
In Xournal++, you can increase the canvas size to any size you want. It is not unlimited size, but you can export it as a PDF, PNG, or even SVG.