Softwr

Testing · head to head

Percy vs Selenium

Percy logo

Percy

Testing

Visual regression testing owned by BrowserStack, with a permanent free tier for low screenshot volume

From
Free
Rated
-
Full reviewWebsite
Selenium logo

Selenium

Testing

Browser automation framework and the W3C WebDriver standard

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Percy pixel-based diffing generates more false positives from font rendering and anti-aliasing noise than Applitools' AI-based comparison, which trains some teams to start ignoring diff alerts over time.; Selenium flaky tests are the standing complaint: explicit waits and synchronisation are the tester’s job, where newer tools handle it automatically
  • They diverge on capability: Percy covers Screenshot diffing, Selenium covers W3C WebDriver.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Percy and Selenium actually diverge.

Attributes where Percy and Selenium differ
AttributePercySelenium
Pricing modelFreemium, paid tiers by screenshot volumeOpen source, no licence fee
PlatformsWebLinux, macOS, Windows, Web

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Testing).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Percy

  • Screenshot diffing
  • Framework integrations
  • Responsive and cross-browser snapshots
  • Review workflow
  • Build history
  • BrowserStack platform integration

Only in Selenium

  • W3C WebDriver
  • Many language bindings
  • Selenium Grid
  • Broad browser support

What people use each for

The jobs each tool is most often brought in to do.

Percy

  • A team already on BrowserStack for device testing that wants to add visual regression without a separate vendor relationshipnot Selenium
  • A low-traffic project that can run indefinitely on the 5,000-screenshot free tier without paying anythingnot Selenium
  • A team wanting a lower cost per screenshot than Applitools and willing to tolerate more manual false-positive triagenot Selenium
  • A Cypress or Playwright test suite adding visual checks without changing its existing test runnernot Selenium

Selenium

  • Cross-browser testing where Safari and legacy browsers must be coverednot Percy
  • Teams whose test suites are written in Java or C# rather than JavaScriptnot Percy
  • Distributing a large suite across a grid of machinesnot Percy

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Percy

  • Pixel-based diffing generates more false positives from font rendering and anti-aliasing noise than Applitools' AI-based comparison, which trains some teams to start ignoring diff alerts over time.
  • It is billed separately from core BrowserStack device testing, and stacking Percy with other BrowserStack modules such as Accessibility Testing materially increases total contract value beyond the headline device testing price.
  • Paid tier pricing above the free tier is not transparently published as a fixed number, requiring a quote to know actual cost at scale.
  • The free tier's 5,000-screenshot cap is easy to exceed for any team running visual tests across multiple browsers and viewports on every commit, pushing many active projects into a paid tier faster than the free number suggests.
  • As part of a larger acquired portfolio, Percy's roadmap priority within BrowserStack's broader product strategy is less certain than it would be as a standalone company's sole focus.

Selenium

  • Flaky tests are the standing complaint: explicit waits and synchronisation are the tester’s job, where newer tools handle it automatically
  • Setup involves drivers, versions and grid infrastructure that Playwright and Cypress bundle away
  • Slower to run than tools that talk to browsers over a debugging protocol rather than WebDriver

Pricing, plan by plan

Percy

Free
  • FreeFree
    • 5,000 screenshots a month
    • Unlimited users and projects
    • 30-day build history
  • Percy$undefined/month
    • Priced by screenshot volume above the free tier
    • Sold separately from core BrowserStack device testing plans
    • Get a current quote before assuming bundled pricing with other BrowserStack products

Selenium

Free
  • SeleniumFree
    • Full functionality
    • Unlimited tests
    • Community support

Which should you pick?

Choose Percy if

  • You need screenshot diffing.
  • You want to start without paying.
  • You also want framework integrations.
Percy review

Choose Selenium if

  • You need w3c webdriver.
  • You want to start without paying.
  • You work on Linux, macOS, Windows, Web.
  • You also want many language bindings.
Selenium review

Questions people ask

Is Percy or Selenium better?
Neither clearly leads. Percy starts at Free and Selenium at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Percy or Selenium?
Percy starts at Free and Selenium at Free.
Does Percy or Selenium run on more platforms?
Percy runs on Web. Selenium runs on Linux, macOS, Windows, Web.
Can I use Percy for free?
Both have a free tier, so you can try either at no cost before committing.
What is Percy best used for?
Percy is most often used for a team already on browserstack for device testing that wants to add visual regression without a separate vendor relationship, a low-traffic project that can run indefinitely on the 5,000-screenshot free tier without paying anything, a team wanting a lower cost per screenshot than applitools and willing to tolerate more manual false-positive triage, a cypress or playwright test suite adding visual checks without changing its existing test runner. Of those, a team already on browserstack for device testing that wants to add visual regression without a separate vendor relationship and a low-traffic project that can run indefinitely on the 5,000-screenshot free tier without paying anything are not what Selenium is typically brought in for.
What can Percy do that Selenium cannot?
Percy covers Screenshot diffing, Framework integrations, Responsive and cross-browser snapshots, Review workflow. Selenium covers W3C WebDriver, Many language bindings, Selenium Grid, Broad browser support.

Answered from the vendors’ own pages

Percy: Is Percy free?

Yes for up to 5,000 screenshots a month with unlimited users and projects; beyond that it is a paid, quote-priced module.

Selenium: Is Selenium free?

Yes, open source with no licence fee. Paid costs come from grid infrastructure or services like BrowserStack.

Percy: Is Percy included if I already pay for BrowserStack device testing?

No, it is billed separately by screenshot volume, not bundled into core device testing plans.

Selenium: Selenium or Playwright?

Playwright handles waiting automatically and is faster to set up, which removes most flakiness complaints. Selenium wins on language breadth, browser coverage including Safari, and existing suites you already have.

Percy: How does it compare to Applitools?

Percy uses pixel-based diffing, which is generally cheaper per screenshot but produces more false positives than Applitools' AI-based perceptual comparison.

Selenium: Is Selenium still relevant?

Yes. Its WebDriver protocol is a W3C standard implemented by every major browser, and very large existing suites are not rewritten cheaply.

Share

Related pages

More on Percy

More on Selenium

Keep looking

Other head to heads