nextjournal/clerk

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

2079 stars · 87 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Clerk is a notebook library for Clojure that turns plain Clojure namespaces or Markdown files into rich, interactive computational notebooks. It runs inside your existing Clojure process and editor, evaluates top-to-bottom with incremental recomputation via a var dependency graph, and supports rich viewers and static HTML publishing.

Use cases

• create computational notebooks in Clojure without Jupyter
• mix prose and executable code in version-controlled notebooks
• visualize Clojure data with rich viewers like Vega and Plotly
• build custom moldable viewers for domain-specific data
• publish static HTML documentation from Clojure code
• explore datasets interactively from the REPL

When to choose

• you write Clojure and want notebook-style exploration without leaving your editor
• you need notebooks that are plain source files safe for git
• you want incremental, dependency-aware recomputation instead of out-of-order cell execution
• you need extensible custom viewers for your data types

When to avoid

• you need a Python or R notebook ecosystem like Jupyter
• you want a built-in editing UI rather than using your own editor
• you need a fully stable API - Clerk is explicitly in alpha with breaking changes expected
• you work outside the JVM/Clojure ecosystem

Facets

library · maturity experimental

data-visualization documentation developer-tools data-science data-visualization developer-tools documentation jvm jvm-scripting self-hosted notebook live-programming repl clojure moldable-development incremental-computation static-publishing web-server

Member repositories

For agents

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