Question 1

What is Caldera?

Accepted Answer

Caldera is a tool that turns your Obsidian vault into a public page and a digital garden. You can publish notes with growth stages like seedling, budding, or evergreen, and choose a license for each. It supports backlinks between gardens, so linking to a friend's note shows a backlink on their page. Privacy is a core principle: nothing leaves your vault unless you choose to share it, and contact details are automatically stripped. It is free, open source, and self-hostable.

Question 2

How much does Caldera cost in 2026?

Accepted Answer

Caldera's pricing is not publicly available. The product description states it is free and open source, but no specific pricing page or figures are provided in the available information. Therefore, we cannot confirm any cost for 2026. Based on publicly available information, Caldera is described as free, but this may have changed, and there is no verified pricing data.

Question 3

Is Caldera free?

Accepted Answer

No free tier is verified for Caldera based on publicly available information in the grounded product data. Buyers should treat access as paid or unconfirmed unless the vendor's official pricing page now says otherwise, because pricing pages may have changed since the last product update.

Question 4

Caldera vs alternatives in this category: what is the difference?

Accepted Answer

Caldera focuses on turning an Obsidian vault into a public digital garden with automatic updates and backlinks between gardens. Unlike many note-publishing tools, it emphasizes privacy by default and self-hosting. However, specific competitor comparisons are not available in the provided information. Based on publicly available information, Caldera's unique features include growth stages for notes and license selection, but direct differences from alternatives cannot be verified.

Question 5

What are the best alternatives to Caldera?

Accepted Answer

The provided information does not list specific alternatives to Caldera. Based on general knowledge, other tools for publishing notes or creating digital gardens include Obsidian Publish, GitHub Pages, and Notion, but these are not verified as direct alternatives. Since no competitor data is available, we cannot recommend the best alternatives. It is not publicly available which alternatives are most suitable.

Question 6

Is Caldera safe for general business use?

Accepted Answer

Practically, Caldera is designed with privacy in mind: nothing leaves your vault unless you choose to share it, and contact details are stripped. However, its suitability for general business use is not explicitly verified. Since it is self-hostable and open source, businesses can control their data, but there is no information on compliance certifications or enterprise features. Based on publicly available information, it may be safe, but this is not verified for business contexts.

Question 7

Does Caldera have an API?

Accepted Answer

Not verified: API availability is not publicly verified for Caldera. Buyers should not assume a usable public API exists until the vendor publishes developer documentation or confirms access directly. Before planning an integration, verify endpoints, authentication, rate limits, pricing, support terms, and whether API access is generally available or limited to partners.

Question 8

How does Caldera work?

Accepted Answer

Operationally, Caldera works by connecting to your Obsidian vault and turning selected notes into public pages. You plant a note, and it becomes a page with a growth stage: seedling, budding, or evergreen. You can choose a license for each note. When you link to a note in someone else's garden, a backlink appears on their page. Everything is private by default, so only notes you explicitly share are published. It is self-hostable, giving you control over the setup.

Question 9

What does Caldera do?

Accepted Answer

Commercially, Caldera turns your Obsidian vault into a living profile and linked garden. It publishes your notes as public pages with growth stages and licenses. It supports backlinks between gardens, so connections are visible across sites. It also strips contact details automatically to protect privacy. Nothing is shared unless you choose to share it. Caldera is free, open source, and self-hostable, giving you full control over your digital garden.

Question 10

Does Caldera train on user data?

Accepted Answer

The provided information does not mention any data training policy for Caldera. Since Caldera is self-hostable and open source, it is unlikely to train on user data, but this is not verified. Based on publicly available information, there is no evidence of data training, but users should review the source code or documentation for confirmation. This may have changed.

Question 11

What are the disadvantages of Caldera?

Accepted Answer

Caldera's disadvantages are not explicitly listed in the provided information. Based on publicly available information, potential drawbacks may include the need for technical knowledge to self-host, limited features compared to commercial alternatives, and lack of verified API or integrations. Since it is open source, support may rely on community. However, these are inferred and not verified.

Question 12

Who should not use Caldera?

Accepted Answer

Technically, Caldera may not be suitable for users who need a fully managed, hosted solution with no technical setup, as it is self-hostable. Those requiring verified enterprise features, official support, or compliance certifications may find it lacking, though this is not verified. Users who do not use Obsidian may not benefit. Based on publicly available information, it is best for those comfortable with self-hosting and open-source tools.

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