To send Playwright visual snapshots to Percy, install the Percy CLI and Playwright integration, add either Percy’s drop-in for existing toHaveScreenshot() tests or explicit percySnapshot() calls, set a project-specific PERCY_TOKEN, then run the test command through percy exec. The drop-in route requires no test-file edits; explicit snapshots give you control over exactly where captures happen.
Choose a Percy setup path
| Path | Use it when | Test changes |
|---|---|---|
| Drop-in integration | Your JavaScript or TypeScript suite already uses Playwright’s toHaveScreenshot() and you want Percy to collect those captures. |
Add one import to the Playwright configuration; no test-file edits are required. |
| Explicit SDK snapshots | You want to choose the exact pages or points in a test where Percy captures snapshots. | Import percySnapshot and call it from test code. |
| Sample project | You want to see a Percy build before connecting your own suite. | Start with the official Percy getting-started guide. |
Both integration routes use the Percy CLI, a Percy project token, and a test command run under Percy. A BrowserStack-hosted browser or Automate configuration is not required for the basic SDK workflow; it is an optional project configuration described in the JavaScript integration guide.
Prerequisites for the drop-in integration
The Percy Playwright reference lists these minimums for the toHaveScreenshot() drop-in: Node 18 or later, @playwright/test 1.60 or later, @percy/cli 1.32.6 or later, and @percy/playwright 1.1.2 or later. Package and runtime requirements can change; check the current Playwright reference if installation or execution fails.
The instructions below assume a JavaScript or TypeScript project using Playwright Test and npm. Use the package manager and test command your project already uses if they differ.
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Set up Percy for existing toHaveScreenshot() tests
-
From the project directory, install the Percy CLI and Playwright integration:
npm install --save-dev @percy/cli @percy/playwright -
Load the drop-in before the Playwright configuration. For a CommonJS configuration file such as
playwright.config.js, add:require('@percy/playwright/dropin'); const { defineConfig } = require('@playwright/test'); module.exports = defineConfig({ // existing configuration });Keep your existing configuration in place. The import registers Percy’s handling for calls to
toHaveScreenshot(); you do not need to edit each test file for this route. -
Copy the token for your Percy project and provide it through the environment when running the tests:
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<your-project-token>with the project token. Do not commit the token or put it in source code. -
Run the command locally or in CI. Review the resulting Percy build and handle visual changes in Percy rather than treating a passing Playwright run as proof that every page is visually unchanged.
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For an existing suite that already calls toHaveScreenshot(), this is the shortest route from Playwright checks to Percy snapshots. See the official drop-in integration reference for supported setup details.
Take explicit Percy snapshots from a Playwright script
Choose this route when capture points should be visible in test code. Install the same packages, create a Percy project, and set its token as PERCY_TOKEN as described in the JavaScript SDK guide. Then import percySnapshot, navigate with Playwright, and call it on the page you want captured:
const { chromium } = require('@playwright/test');
const percySnapshot = require('@percy/playwright');
(async () => {
const browser = await chromium.launch();
const page = await browser.newPage();
await page.goto('https://example.com');
await percySnapshot(page, 'Example Site');
await browser.close();
})();Save the script as a project file, for example visual-check.js, then run it through Percy:
PERCY_TOKEN=<your-project-token> npx percy exec -- node visual-check.jsUse a descriptive snapshot name: it is the label reviewers see when inspecting the Percy build. In an existing Playwright Test suite, place the percySnapshot(page, 'Name') call after navigation and after any interactions or loading waits needed to reach the state you want reviewed.
If wrapping the test command is impractical, the JavaScript guide also documents starting Percy with percy exec:start and stopping it with percy exec:stop around the test command. Consult that guide for the exact invocation and lifecycle details.
Run Percy in CI and protect the token
Set PERCY_TOKEN as a protected secret in your CI provider, then run the same percy exec -- <test command> workflow used locally. BrowserStack describes the token as write-only and unique to each Percy project, and says it should be kept secret in its Percy CI/CD documentation.
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- Do not print the token in build logs or commit it to the repository.
- Use the token for the Percy project whose build should receive these snapshots.
- Run the full test command through Percy so the CLI can collect snapshots during execution.
- Percy documents support for most parallelized test environments, where snapshots from processes or machines are collected into the same build. Confirm that your CI setup follows the CLI’s supported workflow.
Make build review part of the team’s visual-testing process. A successful test command does not itself approve visual changes or establish that the Percy baseline is correct.
Configure snapshots and baselines only when needed
The basic integrations focus on packages, token, and the wrapped test command. For optional tuning, the Percy CLI can generate a configuration file with percy config:create. The Percy configuration options reference describes settings including snapshot widths, minimum height, Percy CSS, asset discovery, hostnames, and uploads. Add configuration when your project needs those behaviors rather than treating it as a prerequisite.
The Playwright reference also documents a baseline setup command for projects that use committed screenshots, but that path depends on project conditions, including use of the default config file and particular screenshot naming and path settings. Check the documented conditions before using it; it is not a universal shortcut for custom Playwright configurations.
Do a focused first-run check
-
Confirm the installed Node and package versions meet the integration’s listed minimums.
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Check that the drop-in import loads from the Playwright configuration, or that explicit snapshots call
percySnapshotwith the intended page and a useful name. -
Verify the Percy project token is available to the process as
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Run one representative test through
percy execand inspect the resulting Percy build. -
Review snapshots and baselines in Percy; do not infer visual approval from the test process exit status alone.
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Troubleshooting common setup problems
No Percy build or snapshots appear
Check that the command is wrapped with npx percy exec --, that the process can read the correct project’s PERCY_TOKEN, and that the drop-in import runs from the Playwright configuration. For explicit snapshots, verify the test actually reaches the percySnapshot() call.
The token is missing or rejected
Set the token in the shell or CI secret configuration as PERCY_TOKEN, without committing it to a file that is tracked. Confirm that it belongs to the intended Percy project and that secret masking or environment scoping has not prevented the test process from receiving it.
toHaveScreenshot() runs but Percy does not collect it
Verify that @percy/playwright/dropin is imported by the active Playwright configuration and that the installed CLI, integration, Playwright Test, and Node versions meet the documented minimums. The drop-in is specifically for Playwright’s screenshot assertion calls.
The Playwright run passes, but a visual difference is present
That outcome is expected: a passing drop-in test run does not replace reviewing the Percy visual build. Inspect the comparison and approve or update the baseline according to your team’s review process.
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Committed-baseline setup does not fit the project
The documented baseline route has configuration and screenshot path/name conditions. If your project uses a custom configuration or different screenshot conventions, use the ordinary Percy integration workflow unless the reference confirms your setup meets those conditions.
Wrapping the test command is not practical
Use the documented percy exec:start and percy exec:stop lifecycle around the test command, following the JavaScript SDK guide. Keep token handling and build review the same as in the wrapped-command workflow.
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Frequently Asked Questions
Do I need BrowserStack Automate to use Percy with Playwright?
No. The basic Percy SDK workflow can run with your Playwright tests; hosted browser execution is an optional configuration.
Can I use Percy with TypeScript tests?
The drop-in route is documented for JavaScript or TypeScript Playwright suites; load the drop-in from the configuration used by your test runner.
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