JCov

JCov

OpenJDK
+
+

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About

The JCov open-source project is used to gather quality metrics associated with the production of test suites. JCov is being opened in order to facilitate the practice of verifying test execution of regression tests in OpenJDK development. The main motivation behind JCov is the transparency of test coverage metrics. The advantage to promoting standard coverage based on JCov is that OpenJDK developers will be able to use a code coverage tool that stays in the 'lock step' with Java language and VM developments. JCov is a pure java implementation of a code coverage tool that provides a means to measure and analyze dynamic code coverage of Java programs. JCov provides functionality to collect method, linear block, and branch coverage, as well as show uncovered execution paths. It is also able to show a program's source code annotated with coverage information. From a testing perspective, JCov is most useful to determine execution paths.

About

UI Verify is a visual regression testing service for web interfaces and coding-agent workflows. It captures states from existing Storybook stories, Playwright tests, Vitest browser-mode tests, or custom screenshots, then compares them with approved baselines. Its cloud-rendered reviews label changes as intended, regressions, or flakes and support pull-request checks and comments. Teams can use its CLI in CI and connect coding agents through an MCP server to inspect diffs and review changes. UI Verify can capture only the UI affected by a change. Its free plan includes 10,000 snapshots and 100 AI reviews per month; eligible open-source projects receive 50,000 snapshots per month at no charge.

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Not Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Developers seeking a solution to gather quality metrics associated with the production of test suites

Audience

Frontend and full-stack teams shipping web UI with coding agents (Claude Code, Cursor, Codex)

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Free Version Supported
Free Trial Not Supported

Pricing

$89/month
Free plan: 10,000 snapshots and 100 AI reviews monthly, with no credit card. Starter: $89/month for 30,000 snapshots and 1,000 AI reviews; additional snapshots cost $0.004 each. Eligible open-source projects can use 50,000 snapshots monthly at no charge.
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

OpenJDK
United States
wiki.openjdk.org/display/CodeTools/jcov

Company Information

UI Verify
Founded: 2026
United Kingdom
uiverify.ai

Alternatives

Alternatives

Reflect

Reflect

SmartBear
RKTracer

RKTracer

RKVALIDATE
blanket.js

blanket.js

Blanket.js
Testim

Testim

Tricentis

Categories

Code Coverage Supported
Regression Testing Supported

Categories

Regression Testing Supported
Visual Testing Supported

Integrations

AWS Marketplace Supported
Amazon Corretto Supported
Apache NetBeans Supported
Azure Marketplace Supported
Bitbucket Not Supported
GitHub Not Supported
Helidon Supported
Java Supported
Model Context Protocol (MCP) Not Supported
Playwright Not Supported
Red Hat Runtimes Supported
Storybook Not Supported
Vitest Not Supported
XML Supported

Integrations

AWS Marketplace Not Supported
Amazon Corretto Not Supported
Apache NetBeans Not Supported
Azure Marketplace Not Supported
Bitbucket Supported
GitHub Supported
Helidon Not Supported
Java Not Supported
Model Context Protocol (MCP) Supported
Playwright Supported
Red Hat Runtimes Not Supported
Storybook Supported
Vitest Supported
XML Not Supported
Claim JCov and update features and information
Claim JCov and update features and information
Claim UI Verify and update features and information
Claim UI Verify and update features and information