---
title: "Jest"
pageType: "tool-profile"
schemaVersion: "1.0"
snapshotId: "tv-20260915-f4c107995a2e"
generatedAt: "2026-09-15T07:02:20.000Z"
canonicalUrl: "https://toolvitals.com/tools/jest/"
jsonUrl: "https://toolvitals.com/api/agent/tools/jest"
indexable: true
---

# Jest

JavaScript and TypeScript testing framework and test runner.

## Decision context

- Status: active
- ToolVitals score: 91/100
- Health score: 93/100
- Shipping score: 89/100
- Score mode: verdict
- Data confidence: 90/100
- Source coverage: 100/100
- Last evidence check: 2026-09-14

## Classification

- Use case: Testing Frameworks (testing-frameworks)
- Category: Developer Tools (developer-tools)
- Tool mode: Library Framework
- Openness: OSI-approved OSS
- License: MIT
- Tags: open-source, easy, expectation, facebook, immersive, javascript, painless, painless-javascript-testing, snapshot, testing, typescript, test-runner, assertions, snapshot-testing

## Public repository signals

- Repository: [jestjs/jest](https://github.com/jestjs/jest)
- Stars: 45457 (adoption context only)
- Forks: 6727
- Open issues: 193
- Last commit date: 2026-09-12
- Releases in 90 days: 2

## Source receipts

- [Official website](https://jestjs.io/) — checked 2026-09-14
- [Source repository](https://github.com/jestjs/jest) — checked 2026-09-14

## Discovery status

- Search indexable: yes
- Reason: sufficient tool evidence

## Interpretation limits

- ToolVitals scores summarize bounded public maintenance, shipping, openness, and evidence signals. They are not user-review ratings.
- GitHub stars and related popularity metrics are adoption context, not quality evidence.
- Missing values mean not collected or not confidently established; they do not mean zero.
- Public signals do not prove security, uptime, support quality, customer satisfaction, or production suitability.
- Verify material decisions against the linked first-party sources and your own requirements.