Zora
Zora is a free, MIT-licensed JavaScript testing library for writing and running tests.
What Zora is
Zora is a free, MIT-licensed JavaScript testing library for writing and running tests. It runs in Node.js, Deno, and browsers, and the project says test programs can execute as regular JavaScript without depending on a particular test runner. The design is described as small, fast, simple, focused, and composable. Zora supports parallel execution and provides recipes for Node.js, browser, and TypeScript setups. The public GitHub repository lists zora-reporters, a reporter collection that can also work as a command-line interface, and pta, a Node.js test runner with a command-line interface. It also lists zora-assert as an assertion library, noting that it is unpublished. A pseudo benchmark compares testing experiences with various frameworks. The repository invites contributions through its guidelines. Zora is listed for API, Linux, and web platforms, with Node.js, Deno, and browser runtimes. There is no free trial because the project is offered as a free plan. The library is aimed at JavaScript developers who want lightweight tests that remain portable across several environments.
Good
- Runs in Node.js, Deno, and browsers
- Tests can run without a specific runner
- Supports parallel execution
- Recipes cover Node.js, browser, and TypeScript
- MIT-licensed public repository
Watch out
- Listed assertion library is unpublished
- No free trial is offered
- pta is specifically a Node.js runner
- Platform listing is API, Linux, and web
Who it suits
Zora suits JavaScript developers working across Node.js, Deno, and browsers. It is a fit when tests should run without a specific runner and when composable tooling is preferred.
Verdict
Zora offers a portable way to write JavaScript tests across several runtimes, with optional reporter and runner projects. Its free MIT license and runner-independent programs suit developers wanting a small, composable testing setup.
The facts
Each one read from Zora's own pages, with the date it was checked.
What it does
- Benchmark
- The repository includes a pseudo benchmark comparing the testing experience with various frameworks.checked 8 Oct 2026
- Contributing
- The repository directs contributors to its guidelines.checked 8 Oct 2026
- Design
- The project describes its approach as focused, composable software following the UNIX philosophy.checked 8 Oct 2026
- Environments
- The README says Zora runs in Node.js, Deno, and browsers, and that tests can run as regular JavaScript programs without a specific test runner.checked 8 Oct 2026
- Getting started
- The repository provides recipes for Node.js, browser, and TypeScript environments.checked 8 Oct 2026
- Intended users
- The project is aimed at JavaScript developers who want a lightweight, composable testing library for different JavaScript environments.checked 8 Oct 2026
- License
- The GitHub repository identifies the project as MIT licensed.checked 8 Oct 2026
- Node.js runner
- The repository lists pta as a test runner with a command-line interface for Node.js.checked 8 Oct 2026
- Product
- Zora is a JavaScript testing library described as a test runner for Node.js and browsers.checked 8 Oct 2026
- Purpose
- Zora is a JavaScript testing library for writing and running tests.checked 8 Oct 2026
- Recipes
- The repository links to recipes for getting started with Node.js, browsers, and TypeScript environments.checked 8 Oct 2026
- Related libraries
- The repository lists zora-assert as its assertion library, and notes that it is unpublished.checked 8 Oct 2026
- Related project
- The repository includes zora-reporters, a set of reporters that can be used as a CLI.checked 8 Oct 2026
- Reporters
- The project includes zora-reporters, a set of reporters that can also be used as a CLI.checked 8 Oct 2026
- Runtime environments
- The project says Zora runs in Node.js, Deno, and browsers, without requiring a specific test runner to run a test program.checked 8 Oct 2026
- Source availability
- The repository is public on GitHub.checked 8 Oct 2026
- Support
- The repository invites users to contribute and points to contribution guidelines.checked 8 Oct 2026
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