Top 21 AI Testing Tools for Natural Language
21 tools in the directory let you author tests in Natural language, according to their own documentation. Each record links to the sources behind that claim.
Included when a tool record lists Natural language under test languages. Support is taken from each vendor’s own documentation, and the list below is not ranked.
How to choose
These tools let you author tests in Natural language. Support for one browser, language, or platform rarely decides a choice on its own, so compare the table on authoring method, pricing, and the rest of the coverage you need.
A tool appears here when a tool record lists Natural language under test languages, verified against an official source. The list is generated from those records and is not ranked.
The 21 tools
- 1
ACCELQ
ACCELQ is a commercial codeless test automation platform covering web, mobile, API, and packaged enterprise applications.
ACCELQ tests Web app, Native mobile, API, PDF, Email and Native desktop, supports Natural language and has verified AI features.
- 2
Agent Device
Agent Device is Callstack's open-source command-line tool and MCP server that lets AI coding agents inspect, control, and verify mobile, TV, desktop, and web applications.
Agent Device tests Web app, Native desktop and Native mobile, supports JavaScript, TypeScript and Natural language, has verified AI features and offers a free tier.
- 3
Applitools
Applitools is a commercial visual testing platform that compares application screenshots using its Visual AI engine.
Applitools tests Web app, Native mobile and API, supports JavaScript, TypeScript, Python, Java, C#, Ruby and Natural language, has verified AI features and offers a free tier.
- 4
Autify
Autify is an AI-powered test automation platform offering no-code and natural language test creation, visual regression testing, and AI-assisted maintenance for web and mobile applications.
Autify tests Web app, Native mobile and Email, supports JavaScript and Natural language and has verified AI features.
- 5
BrowserBash
BrowserBash is an open-source command-line tool that drives a browser from plain-English instructions.
BrowserBash tests Web app and API, supports Natural language and has verified AI features.
- 6
Bug0
Bug0 is a managed AI QA service that provides a dedicated forward-deployed engineer and an AI-powered testing platform (Bug0 Studio) built on an open-source Playwright engine.
Bug0 tests Web app, supports Natural language and TypeScript and has verified AI features.
- 7
Functionize
Functionize is an AI-powered enterprise test automation platform that uses agentic AI to author, execute, and maintain end-to-end tests.
Functionize tests Web app, API, Email, Notification, PDF and File upload, supports Natural language, JavaScript, Python and Go and has verified AI features.
- 8
KaneAI
KaneAI is an agentic AI testing agent that allows teams to plan, author, and evolve tests using natural language, executing across web, mobile, UI, API, database, network, and accessibility layers.
KaneAI tests Web app, Native mobile and API, supports Natural language, JavaScript, TypeScript, Python, Java, C# and Ruby, has verified AI features and offers a free tier.
- 9
Katalon
Katalon is a commercial test automation platform covering web, mobile, API, and desktop testing with AI-assisted authoring features.
Katalon tests Web app, Native mobile, API and Native desktop, supports Natural language, has verified AI features and offers a free tier.
- 10
mabl
mabl is an agentic testing platform for web, mobile, and APIs, featuring AI-native test automation, low-code authoring, and self-healing capabilities.
mabl tests Web app, Native mobile, API, Email and PDF, supports JavaScript and Natural language and has verified AI features.
- 11
Momentic
Momentic is a commercial AI testing platform for authoring and running end-to-end tests described in natural language.
Momentic tests Web app, Native mobile and API, supports YAML, Natural language and JavaScript, has verified AI features and offers a free tier.
- 12
QA Wolf
QA Wolf is an AI-powered testing platform and managed service that provides end-to-end test automation, coverage mapping, and parallel execution infrastructure for web and mobile applications.
QA Wolf tests Web app, Native mobile, Electron app, Browser extension, Email and Notification, supports JavaScript, TypeScript and Natural language, has verified AI features and offers a free tier.
- 13
QA.tech
QA.tech is an AI QA testing platform that uses autonomous agents to perform end-to-end, regression, and exploratory testing for web and mobile applications.
QA.tech tests Web app, Native mobile and API, supports Natural language and has verified AI features.
- 14
Reflect
Reflect is a commercial no-code UI testing product from SmartBear that records browser tests and maintains them with AI assistance.
Reflect tests Web app, Native mobile, API and Email, supports Natural language and has verified AI features.
- 15
Revyl
Revyl is a commercial mobile development platform whose AI agent exercises iOS and Android applications.
Revyl tests Native mobile and Hybrid mobile, supports YAML, Natural language, Python, JavaScript, TypeScript and Bash, has verified AI features and offers a free tier.
- 16
Spur
Spur is a commercial AI QA testing service that runs plain-English test flows against web and native mobile applications.
Spur tests Web app and Native mobile, supports Natural language and has verified AI features.
- 17
SUSATest
SUSATest is an autonomous product intelligence and QA platform that continuously tests web, mobile, API and AI applications using synthetic personas.
SUSATest tests Web app, Native mobile and API, supports Natural language, has verified AI features and offers a free tier.
- 18
TestSprite
TestSprite is a commercial AI testing agent that generates and maintains automated tests for web applications and APIs.
TestSprite tests Web app and API, supports Natural language, has verified AI features and offers a free tier.
- 19
TestZeus Hercules
Hercules is TestZeus's open-source testing agent that executes test cases written in natural language.
TestZeus Hercules tests Web app and API, supports Natural language and Python and has verified AI features.
- 20
Thunders AI
Thunders AI is a commercial testing product that sells self-healing test agents and automated review personas.
Thunders AI tests Web app, Native mobile, API and Native desktop, supports Natural language and has verified AI features.
- 21
Virtuoso QA
Virtuoso QA is an enterprise test automation platform that uses natural language syntax and AI-driven self-healing to author and maintain tests.
Virtuoso QA tests Web app, supports Natural language and has verified AI features.
Compare them side by side
| Select for comparison | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ACCELQ | Natural language, Recorder, Manual | End-to-end, Functional, API, Performance, Accessibility, Database | SaaS, On-premises, Private cloud | |||||||||
| Agent Device | Code, AI-generated workflow, Autonomous exploration, Imported tests | End-to-end, Functional, Regression, Exploratory | Local, Self-hosted | |||||||||
| Applitools | Code, Recorder, Natural language, AI-generated code | Visual, End-to-end, Functional, Accessibility, Cross browser | SaaS, Private cloud, On-premises | |||||||||
| Autify | Natural language, AI-generated workflow, Code, Recorder | End-to-end, Functional, Regression, Visual, Smoke | SaaS | |||||||||
| BrowserBash | Natural language, AI-generated workflow, Recorder, Imported tests | End-to-end, Functional, Regression, API | Local, SaaS, Self-hosted | |||||||||
| Bug0 | Natural language, AI-generated workflow, Manual | End-to-end, Functional, Regression, Smoke | SaaS | |||||||||
| Functionize | Natural language, Recorder, Autonomous exploration, AI-generated workflow | End-to-end, Functional, API, Visual, Regression | SaaS, Private cloud, On-premises | |||||||||
| KaneAI | Natural language, AI-generated code | End-to-end, Functional, API, Visual, Accessibility, Performance | SaaS, Local | |||||||||
| Code, Recorder, Natural language, AI-generated workflow, Manual | Functional, API, End-to-end, Regression | Local, SaaS | ||||||||||
| mabl | Natural language, AI-generated workflow, Imported tests, Code | End-to-end, Functional, Regression, API, Visual, Accessibility, Performance, Load | SaaS | |||||||||
| Momentic | Code, Natural language, AI-generated code, AI-generated workflow | End-to-end, Functional, Regression, Smoke, API, Visual, Accessibility | SaaS, Local | |||||||||
| QA Wolf | Code, Natural language, AI-generated code, Autonomous exploration, Manual | End-to-end, Functional, Regression, Smoke, Visual, Accessibility, Performance | SaaS | |||||||||
| QA.tech | Natural language, AI-generated workflow, Autonomous exploration | End-to-end, Regression, Exploratory, API, Visual | SaaS | |||||||||
| Reflect | Recorder, Natural language, AI-generated workflow | End-to-end, Functional, Regression, API, Visual | SaaS | |||||||||
| Revyl | Natural language, Recorder, Code, Manual | End-to-end, Functional, Regression, Smoke, Exploratory | SaaS | |||||||||
| Spur | Natural language, AI-generated workflow, Imported tests | End-to-end, Functional, Regression, Smoke, Exploratory | SaaS | |||||||||
| SUSATest | Autonomous exploration, AI-generated workflow | Functional, Accessibility, Security, Performance, API, Visual, Usability, Exploratory | SaaS, Local | |||||||||
| TestSprite | AI-generated workflow, Natural language, Autonomous exploration | End-to-end, API, Functional, Regression | SaaS | |||||||||
| TestZeus Hercules | Natural language, AI-generated workflow | End-to-end, Functional, Regression, API, Visual, Accessibility | Local, SaaS, Self-hosted | |||||||||
| Thunders AI | Natural language, Recorder | End-to-end, Functional, Regression, Smoke, API, Visual, Accessibility | SaaS, Self-hosted, Hybrid | |||||||||
| Virtuoso QA | Natural language | End-to-end, Functional, Regression | SaaS |