The free shared map canvas for RPG campaigns and game dev teams. No accounts, no subscription, self-hosted.
Free forever. Your support helps fund our own indie MMO, Mortumus.
This is live, open it with a friend and paint the same map together.
No accounts, no lock-in. Open it together and block out your world in minutes.
Share a link and edit the same map together, live cursors, instant updates, nothing to install or sign up for.
No sign-up, no subscription, no cloud lock-in. Your maps live in plain files on your own machine.
Paint zones, stack dungeon layers under the overworld, drop 130+ markers, and grow the map as big as you need.
Campaign or game build, you're planning a world with someone else. Here's how it fits each.
You and your co-DM sketch the region together, then layer dungeons right under the overworld. Mark encounters, towns and secrets, and export a PNG straight into your session notes or Discord. It even works on a tablet at the table.
Block out your world before anyone opens the engine. A fixed 1:10 grid (one cell = 10 world units) and dual-unit measuring mean the layout you plan here lines up with the coordinates in your engine, like Unity. A Unity bridge is in development, tell us if you'd use it.
Fantasy, sci-fi, horror, anything, every world here is painted from its own custom zone types and 130+ markers. No theme packs to install: define your palette, then paint.
Map Blueprint is built by Fin and Al, the two-person team behind the MMORPG Mortumus. We built it to plan our own game's world: we needed a fast, shared way to sketch maps together without firing up a heavy editor. It worked so well that we cleaned it up and gave it away, for any group that just wants to plan a world together.
No account, no checkout. Download the app, run it, share the link. Unlimited, self-hosted, and yours.
Grab the download for your system, Windows, Mac or Linux. There's nothing to install.
It opens in your browser and asks you to pick a group password (or skip it). That's the whole setup.
Create a map, send your group the link, and start painting together.
Windows · macOS · Linux · one zip (~71 MB)
Map Blueprint is completely free. If you'd like to support it, every donation goes straight into building our indie MMO, Mortumus. We're two people making this for the love of it, and we're grateful for anything at all. Thank you.
You run it, and it's genuinely easy. Download one file, double-click it, and it opens in your browser. Your maps stay on your own computer, and there's no account and no subscription.
No. If you can unzip a file and double-click a program, you're done. The first screen just asks you to pick a password for your group (or skip it).
Everyone opens the same link in a browser and sees the map update live. On the same Wi-Fi, that link just works. To play with people elsewhere, one free command gives your map a public https:// link you can share, no router setup and no account. The download includes a short, plain-English guide.
In plain JSON files in a data/ folder you control. Back it up by copying the folder, or export individual maps to JSON from the dashboard.
Yes, free for everyone, any group or team size, commercial use included. There's no per-seat anything. If it helps your table or your studio, a donation keeps us building.
Just a modern browser. The app is a single self-contained program, no Docker, no Node, nothing else to install. Runs on Windows, Mac and Linux.
Hit Download, unzip it, and run the program for your system. No account, no checkout, no waiting.
Yes, updates are free. Just grab the latest download whenever you like, or ping us on Discord and we'll point you to it.
No, it's genuinely free, forever. Donations are completely optional and just help us keep going.
If Map Blueprint helps you, donate anything via PayPal. It goes straight into building our indie MMO, Mortumus, and we're grateful for anything at all.
Reach us on Discord, ask questions, get help, or just say hi. We're active and happy to help.
Map Blueprint