Latest Release: Latest Release

See your coverage clearly

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It takes your coverage files (LCOV, Cobertura, GoCover, GCov), enriches them with static analysis, and outputs powerful reports in multiple formats..

Getting StartedView Example Report
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Fully Featured HTML Report
Static Analysis
Patch Coverage

Multiple Output Formats

Ingest reports from multiple instrumenters and output standardized data for any pipeline.

HTML Report

Interactive, searchable web dashboard. Visualize complexity, file trees, and coverage heatmaps.

Best For

Human analysis, distribution to stakeholders.

View Example

Text Summary

Compact ASCII table output printed directly to stdout.

Best For

CI pipeline logs, quick sanity checks in terminal.

View Example

LCOV (.info)

Standard tracefile format compatible with legacy tools.

Best For

Uploading to Coveralls, Codecov, or IDE extensions.

View Example

Raw JSON

Full dump of the internal metrics tree structure.

Best For

Custom post-processing, archiving metrics for historical analysis.

View Example

READY TO DEPLOY?

I already track coverage

Use the interactive configurator to generate your CLI command or YAML config file.

Configure Now

I'm new to coverage

Learn how to instrument your code to output formats Nanovision can read.

About Coverage

FAQ

No. Nanovision acts purely as a reporter and analyzer. You continue to run your tests with your standard language tools (e.g., 'go test', 'dotnet test', 'jest'), and Nanovision consumes the resulting coverage files to generate its reports.

Yes! Nanovision is completely open source and released under the Apache 2.0 license. You can use it freely in both commercial and personal projects without restriction.

Absolutely. Nanovision is distributed as a single binary with no external dependencies, making it incredibly easy to drop into GitHub Actions, GitLab CI, Jenkins, or any other CI environment.