MarkBase combines Markdown and Obsidian Bases into one Freeform view. Rendering the visible properties and formulas for every query result as one continuous Markdown document.

\n. Enter \n\n for a
blank line between blocks.\n for a new line, such as ---\n\n---, or clear the
option to join results without a separator.file.contents to the property order. The option turns itself off after
it runs. Then drag file.contents in the Base properties menu to where the
note's Markdown body should render. YAML frontmatter is omitted.[[ to search for notes and insert a
wikilink. Changes save when focus leaves the editor.Fold chevrons appear on hover or keyboard focus. Folded chevrons stay visible. On touch devices, all fold chevrons stay visible. A folded note shows its filename so you can find it and expand it. Heading folding also works in editable note previews.
Each selected value is rendered as Markdown, in property-menu order. Single
newlines in multiline formula values remain visible. file.name is rendered as
a link to its note. Changes to matching notes, formulas, property order, and
view options update the view automatically.
Grouped Bases show group headers when Show export button is off. When Show export button is on, group headers appear only if Group by creates separate output files is on. This setting still controls whether exports create one file or separate files.
For a fixed custom layout, create a Markdown file and add placeholders using full Bases property IDs:
# [[{{file.path}}|{{note.title}}]]
{{formula.summary}}
{{file.contents}}
Then select it under Configure view → Template override. The template is repeated for every result. Because the template explicitly controls placement, its placeholder order takes precedence over the Base properties menu. Clear Template override to return to property-order rendering. In template mode, the line separator setting is ignored because the template provides the layout.
The view replaces these placeholder forms before rendering:
| Placeholder | Value |
|---|---|
{{note.property}} |
A property from the note's frontmatter |
{{file.property}} |
A built-in file property such as file.name or file.path |
{{file.contents}} |
The note's Markdown body, excluding YAML frontmatter |
{{formula.name}} |
A formula defined in the current Base |
Whitespace inside braces is optional. Missing values render as empty text.
Unsupported placeholders remain unchanged. Formula expressions must be defined
in the Base first; the template references their formula.name.
In template mode, place {{file.contents}} where the note body should appear.
file.contents is provided by the Freeform view, not the Bases formula engine.
Obsidian currently does not expose an API for plugins to add file properties to
formula evaluation, so it cannot be referenced from a Base formula.
Create a Base formula that returns a MarkBase instruction list. Then select that formula in the Base properties menu.
| Selection | Formula expression |
|---|---|
| Body lines 10 through 20 | ["markbase.contents", "lines", 10, 20] |
| Body line 10 through the end | ["markbase.contents", "lines", 10] |
Lines with #todo or its nested tags |
["markbase.contents", "tag", "#todo", "lines"] |
| Complete blocks with those tags | ["markbase.contents", "tag", "#todo", "blocks"] |
| Lines with unchecked tasks | ["markbase.contents", "regex", "^[-*] \\[ \\]", "lines"] |
| Blocks that contain "decision", case-insensitively | ["markbase.contents", "regex", "decision", "blocks", "i"] |
| Tag argument from a note property | ["markbase.contents", "tag", note.excerptTag, "blocks"] |
MarkBase resolves the instruction into Markdown in Freeform previews and
exports. Templates also support these formulas through placeholders such as
{{formula.Excerpt}}.
Line ranges: Line 1 starts immediately after YAML frontmatter. Blank lines count, and both endpoints are included. A final newline does not add an extra empty line. A range beyond the body returns the available lines or empty text. Invalid, non-positive, fractional, or reversed ranges produce an error.
Tags: The leading # is optional. Matches ignore case and include nested
tags. For example, #todo matches #todo/work, but not #todoish.
Only inline tags that Obsidian recognizes select content. Frontmatter tags
and tag-like text inside code fences do not select content.
Output modes: Tag and regex selectors require lines or blocks.
The blocks mode uses Obsidian's root-level Markdown blocks, including whole
paragraphs, lists, callouts, tables, and code fences. A heading selects only
its heading block, not the entire heading section.
Regex: Each line or block is a separate match target. Block patterns can
match across lines. The optional flags are i, m, s, and u.
Patterns are strings without surrounding / delimiters. Escape backslashes
for the Bases string, as the task example shows. Regex selectors can match
literal text inside code fences.
Source order and indentation remain unchanged within each excerpt. Separated lines use one newline. Separated blocks use a blank line. No matches produce empty text. Obsidian metadata must be available for tag and block selection. If metadata is not current, the view shows an error and updates after indexing.
Regex selection uses a local worker with a 1,000 ms timeout per instruction. Invalid patterns, timeouts, and unavailable workers produce explicit errors. An export stops before it writes files if an instruction fails.
Limits: Excerpts are read-only, even if full-body editing is enabled.
These formulas return instructions, not native text values. Other Bases
layouts show the instruction list. Bases cannot filter, sort, group, or
calculate on the resolved excerpt. Native expressions can supply selector
arguments, but operations such as .join() do not operate on excerpt text.
Each formula must return one complete instruction list. Cross-note selection
and selector chaining are not supported.
Each result is rendered relative to its source note, so relative links and embeds resolve in that note's context. Template edits are reflected automatically. MarkBase does not add labels, italics, callouts, or other formatting; those come only from property values or an explicitly selected template.
The ready-made mark-base-demo-vault includes
a Base, two sample notes, and a Freeform template.
npm install
npm run build
main.js, manifest.json, and styles.css to:<Vault>/.obsidian/plugins/mark-base/
For watch mode during development:
npm run dev
This repository includes a ready-made demo vault in /mark-base-demo-vault.
.\scripts\build-to-demo-vault.ps1
npm run buildmain.js, manifest.json, and styles.css to mark-base-demo-vault/.obsidian/plugins/mark-base/mark-base-demo-vault in ObsidianSee mark-base-demo-vault/README.md for a
guided walkthrough.