The programmable image editor: design code shots, mockups and social posts with blocks, HTML, templates or your AI agent. Free and open source.
Karbonized is a free, open-source programmable image editor for creating code screenshots, mockups and social graphics with blocks, HTML or AI agents.
- for
- Developers and designers who need quick visual assets from code or templates
- pricing
- free
- license
- Apache-2.0
Key features
5 features of Karbonized
- Size presets — Choose from common dimensions like 1920×1080, 1080×1080, Instagram story, Open Graph, etc.
- Template library — Start from ready-made templates such as code snippets, launch posts, app showcases, browser mockups and quote cards.
- Block-based design — Compose images using draggable blocks that can contain HTML, CSS or markdown.
- AI-assisted creation — Generate or modify graphics by describing them to an integrated AI agent.
- Export ready assets — Download finished images for use in documentation, marketing or social media.
Use cases
- Create shareable code screenshots for blog posts
- Generate app mockups for product pitches
- Produce Instagram or LinkedIn post images from code snippets
- Build consistent Open Graph previews for links
- Design quick UI mockups without a full design tool
Karbonized vs alternatives
 Karbonized |  BuildShip |  Icongen.io |  Frameright |  Fine | |
|---|---|---|---|---|---|
| Best for | Programmable image editor for code-centric graphics | AI-powered visual backend builder | Icon generation | Responsive image handling | AI-assisted software building |
| Pricing | Free | Free | One time fee | Free | Free |
| DevHunt upvotes | 1 | 118 | 114 | 78 | 75 |
| Launched | Apr 2029 | Jan 2023 | Jan 2023 | Jan 2023 | Jan 2023 |
- Karbonized vs BuildShip: BuildShip focuses on visual backend building, not image generation
- Karbonized vs Icongen.io: Icongen.io creates icons, whereas Karbonized creates full-size graphics and mockups
- Karbonized vs Frameright: Frameright manages responsive image behavior, not creation of graphics from code
- Karbonized vs Fine: Fine builds software with AI agents, while Karbonized designs visual assets
Karbonized FAQ
Is Karbonized open source?+
Yes, Karbonized is free and open source.
Can I use an AI agent to design images?+
Yes, you can describe the desired image to the built-in AI agent, which will generate the graphic.
What output formats are supported?+
The tool exports the created graphics as standard image files suitable for web and social platforms.
Do I need to install anything?+
Karbonized runs in the browser, so no local installation is required.
Summarized by DevHunt from karbonized.yoss.pro · Oct 1, 2026. Details may change; check the official site.
