Cross-browser testing
Automated cross-browser testing
One test, every browser your users actually open. Klarent runs the same journey across the browser matrix in parallel and repairs it when the UI moves.
The cross-browser problem
Why cross-browser coverage slips
The matrix multiplies
Every browser, times every version, times every viewport. The browser matrix grows faster than any team can cover it by hand.
Duplicate suites per browser
Per-browser suites are written once and maintained forever, so every UI change turns into test maintenance several times over.
Failures you cannot reproduce
Rendering differences cause failures that are real, but do not show up on the one browser a developer runs locally.
Matrix runs get cut back
Full-matrix runs take so long that teams trim them down to a single browser, and bugs in the others reach users.
How it works
How cross-browser testing works in Klarent
Step 1 - Author once
Describe the journey once in plain English. No browser-specific syntax, and no separate copy per browser.
Step 2 - Select the matrix
Choose the browsers and viewports for the suite, so each suite covers exactly the combinations it needs.
Step 3 - Run in parallel
Every combination runs at the same time, and results come back per browser, with evidence for each one.
Platform capabilities
Cross browser automation testing without the per-browser overhead
One test definition
A single test runs across the whole browser matrix. No per-browser forks to write, review or keep in sync.
Parallel execution
Parallel execution with no concurrency cap, so a bigger matrix does not stretch the release window.
Self-healing across every browser
When the UI changes, one proposed fix repairs the test for every browser at once, not browser by browser.
Per-browser evidence
Every run records screenshots, executed steps and Playwright traces with console and network logs, per browser.
Browser-specific assertions
Where behaviour legitimately differs between browsers, assert on the expected difference instead of failing on it.
Browser and platform coverage
Chrome, Safari, Firefox and Edge from one suite
Chrome and Edge
Chromium-based browsers, on desktop, tablet and mobile viewports.
Firefox
The Gecko engine, run in parallel with the rest of the matrix.
Safari
WebKit rendering, where many layout and responsive layout bugs first appear.
Choosing your browser matrix
Build the matrix from your analytics, not a vendor list
Your analytics show which browsers and browser versions your users actually open. A practical split: run the full matrix on every release, and your top browsers on every pull request.
| Combination | When to run it | Why it earns the run time |
|---|---|---|
| Your top browser, latest version, desktop | Every pull request | Usually your largest group of users, and the fastest signal on most regressions |
| Safari, latest version | Every pull request if Apple traffic is significant, otherwise every release | WebKit rendering differences catch layout bugs Chromium browsers hide |
| Firefox, latest version | Every release | A separate engine that surfaces standards and rendering differences |
| Edge, latest version | Every release | Shares an engine with Chrome, but matters where enterprise users rely on it |
| Older browser versions | Every release, only if analytics show real traffic | Worth the run time only where your users are actually on them |
| Tablet and mobile viewports | Key journeys on every pull request, the rest on release | Responsive layout breakpoints are a common source of cross-browser bugs |
Fits your pipeline
Browser testing automation inside your CI/CD
CI triggers and PR-level subsets
Trigger suites from GitHub, GitLab, Jenkins or Azure DevOps, with a smaller browser subset on every pull request.
Results into Jira
Send results into Jira, so browser-specific bugs are tracked alongside the rest of the backlog.
Alerts in Slack
Run summaries go to Slack or Microsoft Teams, with links straight to failed tests.
Integrations
Fits into your existing stack
Connect to GitHub, Jira, Slack, and more - no reconfiguring your workflow.
Run one of your journeys across the full browser matrix.
Pick a critical journey and see Klarent run it across Chrome, Safari, Firefox and Edge in parallel, in a live walkthrough on your application.
FAQs
Cross-browser testing checks that a web application works the same way in every browser your users open. Browsers use different rendering engines, so a journey that passes in Chrome can still break in Safari or Firefox. Browser compatibility testing catches those differences before users do.
Klarent runs tests on Chrome (Chromium), Firefox, Safari and Edge, across desktop, tablet and mobile viewports. Each test suite can be configured with its own set of browsers and viewports.
No. You write the test once in plain English, and the same test definition runs across every browser in the matrix. There are no per-browser copies to maintain.
Every combination runs in parallel, in its own isolated environment, with no cap on concurrency. Adding browsers to the matrix adds coverage without adding much wall-clock time, so a full-matrix run takes about as long as the slowest single run.
Cross-browser testing checks functional behaviour: that clicks, forms, navigation and outcomes work in every browser. Visual regression testing checks appearance, comparing each page against a known-good baseline. Most teams need both.
Tests run on tablet and mobile viewports alongside desktop. Testing on real mobile devices and native apps is covered by Klarent mobile app testing.
Yes. Trigger suites from your CI/CD pipeline on every pull request. A common approach is to run your top browsers on each PR and the full matrix on every release.
Where behaviour legitimately differs between browsers, the test can assert on the expected difference for that browser instead of treating it as a failure.