Top Performance Testing Software for Web-Based, Cloud, SaaS

Between them, the 15 performance testing software on this page cover load testing (11), API testing (9), web testing (9) and UI testing (6). 15 of them have written a profile you can read before you get in touch.

1. 1

   

   BlueOptima

   Historical Reporting · Risk Management · Performance Metrics

   BlueOptima supplies objective metrics on software development for executives, directors, managers and team leads.

   Write a review

   Why #1: 1 major incident in 90 days (status page) · SOC 2 Type II, as stated on its own website, read 5 Oct 2026

   Not yet on record: client reviews, vetting.

2. 2

   

   Sauce Labs

   Supports Parallel Execution · Cross Browser Testing · Move & Copy

   Sauce Labs runs a continuous testing cloud where teams check websites and mobile apps on many browser, operating system and device combinations.

   Write a review

   Why #2: 3 major incidents in 90 days (status page) · SOC 2 Type II, as stated on its own website, read 5 Oct 2026

   Not yet on record: client reviews, vetting.

3. 3

   

   BlazeMeter

   Test Script Reviews · Load Testing · API Testing

   BlazeMeter is a testing platform from Perforce that brings performance testing, API testing and monitoring, and functional testing into one place.

   Write a review

   Why #3: 1 major incident in 90 days (status page)

   Not yet on record: client reviews, vetting.

4. Also listed, not yet ranked. We hold nothing checkable on these yet that ranks them here: no client review, vetting, award, expert review, or fact stated on their own website (and on a place ranking, where they are based). They follow in order of their TrustList Score. How TrustList ranks · Get vetted, free
5. –

   

   Eggplant

   Supports Parallel Execution · Test Script Reviews · Move & Copy

   Eggplant is software for test automation and robotic process automation, now part of Keysight.

   Write a review
6. –

   

   pCloudy

   Supports Parallel Execution · Test Script Reviews · Requirements-Based Testing

   pCloudy is a cloud-based platform for testing mobile apps on real Android and iOS devices.

   Write a review
7. –

   

   QADeputy

   Cross Browser Testing · API Testing · Web Testing

   QADeputy is a cloud-based test case management tool for software QA teams. It keeps test cases, suites, runs and reporting in one place, as a replacement for spreadsheets.

   Write a review
8. –

   

   UbikLoadPack

   Supports Parallel Execution · Load Testing · API Testing

   UbikLoadPack is a set of plugins that extend Apache JMeter for more demanding load tests.

   Write a review
9. –

   

   Apica LoadTest

   Browser Performance Metrics · Cloud Load Testing · Load Testing

   Apica LoadTest is an application testing tool for checking how websites, apps, APIs and internet-of-things systems cope under traffic.

   Write a review
10. –

    

    Loadium

    Load Testing · API Testing · Web Testing

    Loadium is a load testing platform that runs performance tests written with open source tools.

    Write a review
11. –

    

    Loadster

    Browser Performance Metrics · Load Testing · API Testing

    Loadster is a cloud-based performance testing platform for websites, web applications and APIs.

    Write a review
12. –

    

    LoadUI Pro

    Cross Browser Testing · Browser Performance Metrics · Cloud Load Testing

    LoadUI Pro is a performance testing tool from SmartBear for web services.

    Write a review
13. –

    

    NeoLoad

    Test Script Reviews · Cross Browser Testing · Load Testing

    NeoLoad is a performance testing tool that gives testers and developers automatic test design and maintenance.

    Write a review
14. –

    

    RedLine13

    Load Testing · API Testing

    RedLine13 is a cloud load testing service designed first for Apache JMeter.

    Write a review
15. –

    

    Accessible Metrics

    Load Testing · Web Testing · Requirements-Based Testing

    Accessible Metrics is a web accessibility testing service. It scans a whole website every month for problems that could stop people with impairments from using it, and reports what…

    Write a review
16. –

    

    CloudTest

    Load Testing

    CloudTest is a load testing tool that checks websites and mobile apps by simulating user traffic.

    Write a review

Articles

Latest insights

The newest guides and analysis from TrustList Insights.

All articles

Artificial Intelligence - AI

6 Oct 2026 · TrustList Editorial

Island raises $400M to govern AI agents from its enterprise browser

The Series F, led by Evolution Equity Partners at a $6.4B valuation, pays for an "agentic control plane" that has no release date yet.

Artificial Intelligence - AI

6 Oct 2026 · TrustList Editorial

Harvey raises $550M, lifting its valuation to $15.5B from $11B

Diffusion and Lightspeed co-led the legal AI vendor's second round of 2026. Harvey says 80% of Am Law 100 firms use its tools; that figure…

Singapore

6 Oct 2026 · TrustList Editorial

OneByZero raises $20m to run AI agents inside Asian enterprises

The Singapore company's first outside money, led by Jungle Ventures, pays for engineers in nine markets, an office in Japan and its NEO…