Specifiction
For vendors
AdvertiseTop spots, featured rows, home sponsor Get listedAdd a product we don't cover yet Claim a listingFree: verify the domain, then correct your page Vendor dashboardNumbers, orders and placements
List your tool
Vendor dashboard
Tech riderRev. 3 Oct 2026

Coverage.py

Ch 067.1of 26 Test Coverage Tools
  1. 1Runs onAPI, Linux, Mac, self-hosted, Windows
  2. 2CostsFree plan
  3. 3Coverage typesstatement, branch
  4. 4Supported languagesPython
  5. 5Report formatstext, HTML, XML, LCOV, JSON
  6. 6Self-hosted optionYes
  7. 7Coverage gatesYes
7 lines stated Written from the maker's own pages: coverage.readthedocs.io
Visit site Alternatives
The Coverage.py homepage

Overview

Coverage.py is ranked #6 of 26 in test coverage tools on Specifiction. It runs on API, Linux, macOS, Self-hosted, Windows. There is a free plan.

Coverage.py plans and pricing

All plans
Coverage.py Free Open-source Python coverage tool · Enterprise subscription available through Tidelift coverage.readthedocs.io · 3 Oct 2026

Compared on test coverage tools

Free plan
Yescoverage.readthedocs.io
Coverage types
statement, branchcoverage.readthedocs.io
Supported languages
Pythoncoverage.readthedocs.io
Report formats
text, HTML, XML, LCOV, JSONcoverage.readthedocs.io
Self-hosted option
Yescoverage.readthedocs.io
Coverage gates
Yescoverage.readthedocs.io

Facts

Purpose
Coverage.py measures which parts of Python programs ran and identifies executable code that did not run, commonly to gauge test effectiveness.coverage.readthedocs.io · 3 Oct 2026
Reports
It can produce text, HTML, XML, LCOV, and JSON reports.coverage.readthedocs.io · 3 Oct 2026
Contexts
Dynamic contexts can record which test function ran which lines of code.coverage.readthedocs.io · 3 Oct 2026
Integrations
Coverage.py can run test suites through their usual command, and pytest-cov is an available pytest plugin that the docs say is unnecessary for most purposes.coverage.readthedocs.io · 3 Oct 2026
Extensibility
Third-party plugins can extend measurement to non-Python files, such as mapping executed Python back to Django HTML templates.coverage.readthedocs.io · 3 Oct 2026
Storage and API
Coverage data is stored in a SQLite database, and advanced usage can use the Coverage.py API.coverage.readthedocs.io · 3 Oct 2026
Supported interpreters
The current documentation lists Python 3.10 through 3.15 rc2, including free-threading, and PyPy3 versions 3.10 and 3.11.coverage.readthedocs.io · 3 Oct 2026
Measurement cores
Coverage.py offers ctrace and pytrace tracing cores plus a sysmon core; sysmon is faster for simple line and branch coverage but does not yet support dynamic contexts or plugins.coverage.readthedocs.io · 3 Oct 2026
Security
The project directs vulnerability reports to Tidelift, which it says will coordinate the fix and disclosure.github.com · 3 Oct 2026
License
Coverage.py is licensed under the Apache 2.0 License.github.com · 3 Oct 2026
Support
Users can seek help on the Python discussion forums or Python Discord, report bugs on GitHub, and obtain professional support through Tidelift Subscription.coverage.readthedocs.io · 3 Oct 2026
Intended users
The documentation presents Coverage.py as a tool for people measuring Python test effectiveness by seeing which code tests exercise and which they miss.coverage.readthedocs.io · 3 Oct 2026

Best Coverage.py alternatives

See all 20
All accessCh 01 Coveralls Free planFree trialAPI from $10/mo7.6 All accessCh 02 ReportGenerator Free planFree trialLinux Free to start7.6 All accessCh 03 Codecov Free planFree trialAPI from $5/mo7.3 All accessCh 04 OpenClover Free planLinuxMac Free to start7.3 All accessCh 05 SimpleCov Free planLinuxMac Free to start7.2 All accessCh 07 gofmt Free planLinuxMac Free to start7.1

Where it ranks on Specifiction

Is Coverage.py yours?

Claim it for free: prove the domain, then correct facts, plans and screenshots. An editor reviews every change.

Claim it free Promote Coverage.py

Sources