The Best Regression Testing Tools in 2026, Ranked and Scored

Regression testing is the work of proving that what used to work still works after a change. The tools that do it split into five families: agents that test without a suite, AI layers on top of a code framework, enterprise platforms with recorders and healing, the code frameworks themselves, and visual tools that compare screenshots. This list scores fourteen of them on the same five criteria, in the open, so you can disagree with a number and still use the table. We build one of these tools, TesterArmy (YC 26), and we say so where it matters.

Last checked: 16 September 2026. Prices are public list prices in US dollars on the vendors' sites on that date. Quote-only tools are marked as such.

The short answer

For a team that ships web or mobile changes daily and does not want to own a test suite, an agent-based tool scores highest: you describe the flow once and the agent re-runs it on every pull request without locators to repair. Teams that keep tests as code get the most from an AI layer on Playwright. Design systems and marketing sites get the most from a visual tool. Enterprises with a QA department and procurement get the most from the platforms with recorders, SOC 2 and a sales team.

How we scored

Each tool gets one to five points on five criteria, for a total out of 25.

• Authoring cost. How much work it takes to get a regression suite that covers your critical flows. Plain English scores high. Hand-written code scores low.
• Maintenance. What happens after a UI change. No locators to repair scores high. Brittle selectors score low.
• Platforms. Web only scores low. Web plus native mobile plus API scores high.
• Pull request fit. A check on every pull request with evidence attached scores high. A CI job you wire yourself scores mid. Nothing scores low.
• Starting price. A usable free tier scores high. Quote-only scores low.

The facts behind each score come from the vendor's public site or docs, and from our own comparison pages where we have checked them line by line.

The ranking

The maintenance score breaks ties, because maintenance is where regression suites die.

1. TesterArmy, the agent that needs no suite

TesterArmy runs regression tests written as plain-English steps against a real browser, a cloud iOS simulator or an Android emulator, and returns a pass or fail verdict with a recording. There are no selectors, so a redesign does not break the tests. The agent reads the screen the way a user does. A GitHub App runs the flows on every pull request and posts the result as a check, and the same runs can be scheduled against production. Stored credentials, basic auth headers, email inboxes and phone numbers cover logins and one-time codes. The free plan includes 5 runs. Hobby is $99 a month for 250 runs and Startup is $299 for 1,000.

It loses points on two counts. Mobile runs use simulators and emulators rather than physical phones, and teams that want tests as code in their repository will not get that here. We build this tool, so read the scores with that in mind and check the runs yourself.

2. Momentic, YAML tests with healing locators

Momentic keeps tests as YAML files in your repository, written in a web editor or by a coding agent, and heals its locators when the UI drifts. A CLI runs them in GitHub or GitLab CI, and iOS and Android simulators are supported through the local editor. The $0 tier is permanent, with paid plans from $125 a month. It is the strongest choice for teams that want code-adjacent tests without hand-written Playwright.

3. Percy, visual regression on BrowserStack

Percy takes screenshots through Playwright, Selenium, Appium or Storybook, compares them against a baseline and flags visual differences in a review UI. It answers a different question from the functional tools. A functional tool asks whether the flow works. Percy asks whether anything looks different. The free plan includes 5,000 screenshots a month. Paid plans come inside BrowserStack bundles. It pairs well with a functional tool rather than replacing one.

4. testRigor, parsed English on a cloud grid

testRigor executes commands written in a constrained English rather than XPath or CSS, on web, native mobile and desktop apps. Tests run from the app, the CLI or an MCP server. There is no pull request check, only CI jobs through the CLI. A public free tier exists and Private plans start at $300 a month. The command language has rules to learn, but suites in testRigor survive UI changes better than selector-based code.

5. Mabl, the enterprise recorder with auto-healing

Mabl records flows with its Trainer, stores element models that heal when attributes change, and runs them on web plus iOS and Android cloud devices as a paid add-on. GitHub checks run on pull requests and can be re-run from GitHub. Pricing is quote only with a 14-day trial, and that costs it points. The product itself is one of the most complete regression platforms for teams with a procurement process.

6. Stably, AI locators inside your Playwright suite

Stably adds AI locators and an autofix step to Playwright tests that stay in your repository. You write in plain English or record, and the result syncs to Playwright code. A GitHub Action posts results on pull requests. It is web only. Pricing starts with $10 in free credits, then $60 a month. It suits a team that has a Playwright suite and wants to stop repairing it by hand without leaving the framework.

7. Chromatic, visual regression for component libraries

Chromatic snapshots Storybook stories, and Playwright or Cypress runs, and diffs them per pull request. TurboSnap re-tests only the components whose files changed. The free plan includes 5,000 snapshots a month on Chrome, Starter is $179 for 35,000 with more browsers, Pro is $399 for 85,000. It is the best fit when your regression risk lives in a design system rather than in user flows.

8. TestSprite, generated Playwright with heal on rerun

TestSprite generates Python Playwright tests from a product requirements document plus live exploration of the app, runs them, and heals them on drift. A GitHub App posts a pull request comment and can block merges. Web UI and API only. The free tier includes 150 credits, then $19 a month. It is cheap and fast to start, and the generated tests are still code you own.

9. Katalon, the all-in-one low-code platform

Katalon covers web, API, mobile and desktop from one studio with no-code, low-code and full-code options, plus test management and cloud execution. That breadth is why it scores five on platforms. Seats cost $84 to $200 a month per user depending on plan and term, with a 30-day trial and no free tier, and the pull request integration is CI plumbing rather than a native check.

10. Applitools, visual AI for regression at scale

Applitools compares screens with a visual AI that ignores rendering noise and can group matching differences across a run, which cuts review time on large suites. It plugs into the usual frameworks and CI. The Starter plan is $667 a month billed annually, with Professional and Enterprise on quote. The technology is strong and the price is set for organisations rather than small teams.

11. Playwright, the framework most of the others build on

Playwright is Microsoft's free, open-source framework for scripted browser tests in TypeScript, JavaScript, Python, .NET and Java, with a deterministic runner and mobile browser emulation. It costs nothing and runs anywhere your CI runs. Every test is code you write and maintain, and selectors break when the UI changes, which is exactly the cost the tools above exist to remove. Read why Playwright tests go flaky before you commit a team to it.

12. Functionize, an agent on credits for enterprise teams

Functionize's agent observes the live app, writes tests from described intent and heals selectors. Pricing is public and low to start: Free at $0, Pro at $20 a month, Team from $40 per user. Native mobile is not itemised and pull request testing is claimed with integrations listed as coming soon, which is where the score drops.

13. Cypress, the in-browser JavaScript framework

Cypress runs JavaScript or TypeScript specs inside the browser, retries queries on a timeout, and reports through Cypress Cloud with status checks. The app is free under MIT. Cloud is free up to 500 results, then from $799 a year. It covers browsers only, with no native mobile, and it carries the same suite ownership as Playwright.

14. Selenium, the WebDriver standard

Selenium scripts browsers in five languages through WebDriver and is free under Apache 2.0. Its strength is that it runs everywhere. Its cost is the grid or driver fleet you run, plus Appium for anything native. For a new regression suite in 2026 it takes the most engineering labour of any option here.

Which one to pick

• If you ship web or mobile changes daily with a small team and no dedicated QA, pick TesterArmy, or Momentic if you want the tests in your repository.
• If you already own a Playwright suite, pick Stably to stop the repair work, or TestSprite to generate more coverage cheaply.
• If your risk lives in a design system or a marketing site, pick Chromatic or Percy and run it next to whatever runs your flows.
• If you have a QA department and a procurement process, pick Mabl, testRigor or Katalon, depending on whether you want a recorder, plain English or one platform for everything.
• If you have nothing to spend and engineers who like code, pick Playwright.

FAQ

What is the difference between regression testing tools and end-to-end testing tools? End-to-end tools run a user flow from start to finish. Regression testing is what you use them for after a change. Every tool on this list runs end-to-end flows. The visual tools add screenshot comparison, which catches layout regressions that a functional flow passes over.

Do I need a visual regression tool as well as a functional one? If your risk is a broken checkout, no. If your risk is a component library or a marketing site where a CSS change can shift a layout without breaking a flow, yes. Percy and Chromatic are built to sit next to a functional tool.

Which regression testing tool is free? Playwright, Cypress and Selenium are free frameworks. You pay in engineering time. Percy and Chromatic have free plans of 5,000 screenshots or snapshots a month. TesterArmy includes 5 free runs, Momentic has a permanent $0 tier, and BackstopJS is a free open-source visual tool that is currently looking for a maintainer.

How often should regression tests run? On every pull request for the flows that would stop a release, and on a schedule against production for the rest. Smoke testing versus regression testing covers how to split the two, and nightly regression runs covers the schedule.