Frontend Frameworks

Oz

Data visualization and live-reload platform for literate programming using Vega/Vega-Lite and Hiccup.

Status
UnmaintainedNo commits in 1481 days.
Last checked
Aging · Sep 1, 2026
License
Open source
Pricing
Free tier · from $0
Visit Oz Compare with alternatives

What it is

Oz is a tool that enables data visualization through Vega/Vega-Lite and Hiccup, along with providing a live-reload environment for literate programming. It's particularly useful for developers who need to visualize complex datasets in real-time while iterating on their code.

Oz stands out as an open-source, locally-hosted tool that integrates data visualization with live-reload capabilities for literate programming, making it ideal for rapid prototyping and educational purposes in the Clojure ecosystem.

When it fits — and when it doesn’t

A good fit for

  • Clojure developers working on projects that require interactive data visualization and real-time code iteration.

  • Educators who want to demonstrate the power of literate programming with live feedback in a classroom setting.

Look elsewhere if

  • Projects requiring cloud-based services for data visualization.

  • Developers looking for a web-based UI without local setup requirements.

Known weaknesses

Each one links to the public issue, changelog or docs page it came from, where we have one.

  1. 01

    Limited language support

    Oz primarily supports Clojure, which may limit its usability for developers working in other languages.

  2. 02

    Complex setup process

    Setting up Oz requires a deep understanding of both Vega/Vega-Lite and Hiccup, as well as the live-reload environment configuration.

  3. 03

    Small community and limited third-party integrations

    Due to its niche focus on Clojure and specific visualization libraries, Oz has a relatively small user base and fewer community-contributed plugins or extensions.

What it does well

  • Data visualization using Vega/Vega-Lite and Hiccup.

  • Live-reload environment for literate programming.

  • Open-source under the EPL-1.0 license.

Pricing

Free tier
YesOpen source — free to use
Paid from
$0
Model
Flat rate
Enterprise plan
No

Pricing not independently confirmed — check the vendor’s page.

Performance benchmarks

How Fast Is It?

Set up Oz

Setup steps, common gotchas and what to check after 30 days.

Open the setup guide →