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Stack Overflow Dev Survey 2026

Code Testing tools

Our analysis

Bruno, PHPUnit, GoogleTest and MSTest may not be on the top of the desired list for most, but users of these testing tools rate them very highly on the admired scale
Code Testing toolsAll Respondents · n = 10,604 · Desired = "Want to use" / Admired = "Have used" & "Want to use"All RespondentsCode Testing toolsDesiredAdmiredESLint19%47%Playwright18%52%pytest17%51%Postman / Newman14%39%Vitest14%57%JUnit11%43%SonarQube / SonarCloud10%40%Sentry9%46%Jest9%35%Datadog7%40%xUnit.net7%53%Testcontainers7%55%Selenium7%31%CodeRabbit5%38%NUnit5%41%Cypress4%26%BrowserStack4%30%JaCoCo4%42%Cucumber4%36%CodeQL3%36%Snyk Code3%31%Codecov3%38%k63%43%RSpec3%51%Mocha3%28%New Relic2%31%Appium2%33%Semgrep2%36%Graphite2%29%Robot Framework2%29%Canary2%39%TestNG2%33%Greptile2%43%DeepSource1%34%Ellipsis1%37%Sourcery1%35%Qodo1%37%PHPUnit<1%64%Bruno<1%78%GoogleTest<1%64%MSTest<1%64%10,604Desired = "Want to use" / Admired = "Have used" & "…Data licensed under Open Database License (ODbL) 1.0
All Respondents · n = 10,604 · Desired = "Want to use" / Admired = "Have used" & "Want to use"
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Format

Question

Which tools for code testing, reliability, and maintainability have you done extensive development work in over the past year? Which do you want to work in over the next year? If you worked with the tool and want to continue to do so, please check both boxes in that row.
  • scale
  • Optional
  • v2026.1

Data

DesiredAdmired
ESLint19.1%47.4%
Playwright18.1%51.9%
pytest16.9%51.3%
Postman / Newman14.0%38.5%
Vitest13.8%56.9%
JUnit10.8%43.4%
SonarQube / SonarCloud10.1%40.2%
Sentry9.2%45.9%
Jest9.1%35.3%
Datadog7.2%40.3%
xUnit.net7.0%52.9%
Testcontainers6.7%54.5%
Selenium6.7%30.6%
CodeRabbit4.9%37.7%
NUnit4.8%40.5%
Cypress3.9%25.7%
BrowserStack3.6%30.2%
JaCoCo3.5%41.7%
Cucumber3.5%35.8%
CodeQL3.4%36.0%
Snyk Code3.2%30.9%
Codecov3.1%37.6%
k63.1%42.7%
RSpec2.9%50.6%
Mocha2.5%27.7%
New Relic2.3%30.5%
Appium2.0%32.5%
Semgrep2.0%35.7%
Graphite1.9%28.7%
Robot Framework1.8%28.8%
Canary1.8%38.9%
TestNG1.7%32.5%
Greptile1.5%43.1%
DeepSource1.4%33.9%
Ellipsis1.2%36.6%
Sourcery1.2%35.2%
Qodo1.2%36.7%
PHPUnit0.5%63.6%
Bruno0.5%78.3%
GoogleTest0.4%64.3%
MSTest0.3%63.8%

Use this data

The Markdown table shows one column per segment; the CSV and JSON carry every measure.

Response data is released under the ODbL 1.0, which asks that you attribute it.

Structured for code, with the question, the year and the source url alongside the numbers.

A formatted table, ready to paste into a document, an issue or a prompt.

Spreadsheet

.csv is a plain text format which most spreadsheet software can open.