Caspian
Anchor your notes to anything.
FreeVisual editing186 impressionslaunches Mar 271 comment
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>log in to commentI built Caspian: anchor notes to anything visual — a picture, map, or 3D model. Drop a pin, write in plain Markdown, navigate by clicking anchors instead of digging through folders. Best part: every note is a plain Markdown file on your disk. No account, no cloud, no lock-in. Early (v0.1) — Windows + Linux live, macOS soon. Would love your honest feedback 🙏
Caspian lets you anchor Markdown notes to images, maps or 3D models and publish interactive projects without lock-in.
- for
- Developers and creators who need visual, file-based note-taking and quick AI-assisted project scaffolding.
- pricing
- freemium
- license
- open source
Key features
- AI-driven planning — Turns spoken ideas into detailed plans, asks clarifying questions, and splits large jobs into steps.
- Model cost optimization — Selects the cheapest suitable AI model and shows cost, token and time estimates before running.
- Project context memory — Keeps product and user context per project with saved chat history and version rollback.
- Publish with sign-in — Deploy projects to their own URLs with optional user accounts, roles, analytics and password protection.
- Email outreach automation — Uses your own SMTP to send paced outreach emails and tracks replies, bounces and opens.
- Local-first workflow — Run Caspian locally, backup to Git, and publish up to 5 projects for free.
Use cases
- Create interactive 3D educational atlases anchored to markdown notes
- Build dashboards that update via AI-generated data pipelines
- Develop simple games with markdown-driven content and live publishing
- Send automated outreach emails directly from the platform
Caspian vs alternatives
 Caspian |  MD Editor |  UI Bakery |  Dim0 | |
|---|---|---|---|---|
| Best for | Anchored visual markdown notes | AI-powered markdown editing | Custom web apps without AI scaffolding | Freeform visual canvas |
| Pricing | Freemium | Free | Subscription | Subscription |
| DevHunt upvotes | 1 | 13 | 15 | 3 |
| Launched | Mar 2029 | Feb 2024 | May 2024 | May 2026 |
- Caspian vs MD Editor: Focuses on AI-enhanced markdown editing, not visual anchoring or publishing.
- Caspian vs UI Bakery: Provides low-code web-app building, but lacks AI-driven planning and visual note anchoring.
- Caspian vs Dim0: A canvas tool for creative work, not a markdown-centric note system with AI integration.
Caspian FAQ
Do I need an account to use Caspian?+
No, you can run Caspian locally and all notes are plain Markdown files on your disk.
Can I use my own AI models?+
Yes, the free plan lets you point Caspian at existing tools like Claude or Codex.
How does publishing work?+
Click Publish to get a unique address, enable sign-in, set roles, and view analytics.
Is there a limit on projects in the paid plan?+
The Full Venture Studio plan offers unlimited projects and removes the required badge.
What email features are included?+
You can send outreach from your own SMTP, with pacing limits and tracking of replies, bounces and opens.
Summarized by DevHunt from caspian.md · Sep 29, 2026. Details may change; check the official site.
