What Is CartoSketch? The Complete Guide to AI Map Styling
CartoSketch is an AI-powered map styling tool that turns real-world Mapbox data into hand-drawn sketches, watercolors, and cyberpunk landscapes. Learn how it works, who it's for, and how it compares to fantasy map generators.
CartoSketch is an AI-powered map styling tool that transforms real-world map data from Mapbox into artistic visual assets — sketches, watercolors, sci-fi landscapes, vintage cartography, and more. Unlike fantasy map generators that invent imaginary worlds, CartoSketch always starts from an actual place on Earth.
What does CartoSketch actually do?
CartoSketch sits between a mapping service and a generative AI model. You tell it where in the real world you want to depict, and what artistic style to apply; it fetches a Mapbox Static Image of that location, sends the rendered tile to a Google Gemini image model with a cartoon-style system prompt, and returns a stylized version you can download as a high-resolution PNG.
Because the source image is a real Mapbox render, the geometry stays faithful. A map of Shibuya still has Shibuya's streets. A coastline of Lisbon still has Lisbon's Tagus estuary. The AI only changes how the map looks, not what it depicts.
How the pipeline works
- Search for any location using Google Places autocomplete.
- Frame the shot — zoom, bearing, and map type (satellite or streets).
- Pick an artistic style and (optionally) add a free-text prompt.
- CartoSketch spends one credit, generates a PNG original and a JPEG variant, and stores both in object storage.
- Optionally iterate with Modify or Inpainting to refine specific regions.
How it compares to other AI map tools
| Capability | CartoSketch | Fantasy map generators |
|---|---|---|
| Source data | Real Mapbox tiles | Noise / prompt-based terrain |
| Geographic accuracy | Yes — actual streets & coastlines | No — fictional worlds |
| Style catalogue | Sketch, watercolor, cyberpunk, vintage, minimalist, … | Varies; often fantasy-only |
| Iteration | Modify + Inpainting on the same image | Re-roll the whole output |
| Commercial use | Allowed on every paid plan | License varies |
Who uses CartoSketch?
- Indie and board game designers building real-world settings.
- Tabletop RPG game masters running campaigns in actual cities.
- Presentation and content designers who want on-brand location visuals.
- Educators illustrating geography, history, or urban planning lessons.
- Illustrators and book-cover designers working with location-accurate bases.
Pricing at a glance
| Plan | Price | Credits | Resolution | Best for |
|---|---|---|---|---|
| Free | $0 | 1 (initial gift) | 2K | Trying it once |
| Credit Pack | $5 / pack | 3 per pack, never expire | 2K | Occasional use |
| Plus | $10 / mo | 40 / month | 1K | Digital surfaces only |
| Pro | $20 / mo | 100 / month | 2K | Print + high volume |
Frequently asked questions
- Is CartoSketch free to try?
- Yes. New accounts receive one credit as an initial gift, which is enough to generate a full 2K sketch without entering payment details.
- Can I edit part of an image after generation?
- Yes. The Modify and Inpainting tools let you refine a specific region or apply a new prompt to the existing sketch without starting over.
- Does CartoSketch support any location on Earth?
- Any location Mapbox can render is supported, which covers the entire globe at street-level detail in most urban areas and satellite imagery everywhere else.
- Are the outputs watermarked?
- No. All downloads are watermark-free, regardless of plan.