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Head-to-head · End-to-End Testing Software

Selenium vs Functionize

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score Selenium #3 in End-to-End Testing Software 9.1/10 Free plan Free plan✓ 2 of 3 features Visit Selenium
Functionize #8 in End-to-End Testing Software 8.6/10 Free plan Free plan✓ 3 of 3 features Visit Functionize

Selenium leads on 0 checks, Functionize on 0, and 4 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreSelenium · 9.1/10
  • Free planboth
  • Most featuresFunctionize · 3 of 3

Selenium scores higher on our rubric for end-to-end testing software: 9.1 against 8.6 out of 10; our editors rank them #3 and #8.

On test authoring, Functionize gives you No_code where Selenium offers Code.

Selenium is the better fit for engineering teams wanting a free browser standard. Functionize is the better fit for budget-conscious teams wanting no-code automation.

  • Selenium fits best

    Engineering teams wanting a free browser standard

  • Functionize fits best

    Budget-conscious teams wanting no-code automation

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Side by side

Feature Selenium 9.1/10 Visit ↗ Functionize 8.6/10 Visit ↗
At a glance
Editor score 9.1 8.6
Ranking #3 in End-to-End Testing Software #8 in End-to-End Testing Software
Best for Engineering teams wanting a free browser standard Budget-conscious teams wanting no-code automation
Pricing model Free Free plan + paid
Starting price Free plan $20/mo
Free plan ✓ ✓
Free trial — —
Deployment Self-hosted, Browser extension Cloud, Self-hosted, Browser extension
Platforms Web, Windows, macOS, Linux, Chrome extension Web, Chrome extension
Support Community, Docs Email, Phone, Tickets, Docs · 24/7
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Selenium 2/3 · Functionize 3/3
Self-hosted runner ✓ ✓
Mobile web testing ✓ ✓
Visual testing Not checked yet ✓ (best)
Specs
Test authoring Code No_code
Browser support Cross_browser Cross_browser
Parallel runs Not checked yet 5
Our review
Pros
  • Free, open-source browser automation with Apache 2.0 licensing
  • WebDriver, Selenium IDE, Grid, parallel execution, and cross-browser testing
  • Supports multiple languages, remote execution, and self-hosted runners
  • Plain-language and recorded test authoring without code
  • Cross-browser, mobile web, visual, and self-healing coverage
  • API, database, file, email, and SMS workflow testing
Cons
  • Does not include a testing framework or built-in test runner
  • Requires teams to pair Selenium with a language-specific test runner
  • Broader setup and maintenance responsibilities than a hosted testing service
  • Parallel runs are capped at 5 or 10 on paid non-Enterprise plans
  • Credit limits vary substantially across monthly plans
  • Broader workflow coverage may exceed simple browser-testing needs
Our verdict

Selenium is an open-source suite for automating web browsers, aimed primarily at developers and QA teams building browser-based regression and end-to-end tests. Its WebDriver component provides language-specific client bindings and a…

Read the review →

Functionize is an end-to-end testing platform for QA teams, developers, and enterprises that want no-code automation across web and mobile browser environments. Tests can be created from plain-language instructions with the Create Agent or…

Read the review →
  1. SeleniumEnd-to-End Testing Software 9.1Free plan
  2. FunctionizeEnd-to-End Testing Software 8.6Free plan

Strengths and trade-offs

  • Selenium — where it wins

    • Free, open-source browser automation with Apache 2.0 licensing
    • WebDriver, Selenium IDE, Grid, parallel execution, and cross-browser testing
    • Supports multiple languages, remote execution, and self-hosted runners

    Where it doesn't

    • Does not include a testing framework or built-in test runner
    • Requires teams to pair Selenium with a language-specific test runner
    • Broader setup and maintenance responsibilities than a hosted testing service

  • Functionize — where it wins

    • Plain-language and recorded test authoring without code
    • Cross-browser, mobile web, visual, and self-healing coverage
    • API, database, file, email, and SMS workflow testing

    Where it doesn't

    • Parallel runs are capped at 5 or 10 on paid non-Enterprise plans
    • Credit limits vary substantially across monthly plans
    • Broader workflow coverage may exceed simple browser-testing needs

More comparisons

All End-to-End testing software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update