mabl vs Stably: Testing Tool Comparison

mabl and Stably side by side: verified capabilities, integrations, pricing, and limitations, each claim cited to an official source.

Unknown means no documentation was found; it is not the same as unsupported.

Field	mabl	Stably
Identity
Category	Testing	Testing
Vendor	mabl	Stably
Product status	active	active
Summary	mabl is an agentic testing platform for web, mobile, and APIs, featuring AI-native test automation, low-code authoring, and self-healing capabilities.	Stably is an AI-native testing platform that provides an agentic IDE for parallel coding agents to get test coverage quickly.
Product kind	Testing platform, AI testing agent	Testing platform, AI testing agent
AI
Uses AI	✓ Supported Verified 2026-09-26[8]	✓ Supported Test generation, Execution, Self-healing, Exploration, Failure analysis, Test data generation Verified 2026-09-26[1][2][6]
AI test generation	✓ Supported Verified 2026-09-26[8]	✓ Supported Supported via `stably create` CLI command and Web Editor. Verified 2026-09-26[8][9]
AI executes the app	✓ Supported Verified 2026-09-26[8]	✓ Supported Supported via AI Agent Execute. Verified 2026-09-26[11]
AI generates code only	✕ Unsupported Null · Null Verified 2026-09-26[8]	✓ Supported Stably generates Playwright code. Verified 2026-09-26[1]
Autonomous exploration	✓ Supported Verified 2026-09-26[1]	✓ Supported Supported via `stably plan` and `stably create` commands. Verified 2026-09-26[12][8]
Vision-based interaction	? Unknown Verified 2026-09-26[1]	✓ Supported Supported via AI Assertions. Verified 2026-09-26[7]
Selector-free execution	? Unknown Verified 2026-09-26[1]	✓ Supported Supported via AI Locator. Verified 2026-09-26[13]
Adapts to UI changes	✓ Supported Verified 2026-09-26[1]	✓ Supported Supported via AI Locator (autofix). Verified 2026-09-26[13]
Self-healing	✓ Supported Verified 2026-09-26[1]	✓ Supported Supported via AI Locator and `stably fix` command. Verified 2026-09-26[13][14]
AI failure analysis	✓ Supported Verified 2026-09-26[1]	✓ Supported Supported via `stably fix` and Test Reporter. Verified 2026-09-26[14][15]
What it tests
Testing types	End-to-end, Functional, Regression, API, Visual, Accessibility, Performance, Load	End-to-end, Functional, Regression, API, Visual
Targets	Web app, Native mobile, API, Email, PDF	Web app
Native desktop testing	? Unknown Verified 2026-09-26[2]	✕ Unsupported Verified 2026-09-26[2]
Native mobile testing	✓ Supported Verified 2026-09-26[2]	✕ Unsupported Verified 2026-09-26[2]
Browser extension testing	? Unknown Verified 2026-09-26[2]	? Unknown Verified 2026-09-26[2]
Cross-browser testing	✓ Supported Verified 2026-09-26[6]	✓ Supported Verified 2026-09-26[2]
Cross-platform testing	✓ Supported Verified 2026-09-26[2]	✓ Supported Verified 2026-09-26[2]
Real device testing	? Unknown Verified 2026-09-26[7]	? Unknown Verified 2026-09-26[2]
Multi-tab testing	? Unknown Verified 2026-09-26[7]	✓ Supported Verified 2026-09-26[2]
iframe testing	? Unknown Verified 2026-09-26[7]	✓ Supported Verified 2026-09-26[2]
Canvas testing	? Unknown Verified 2026-09-26[7]	✓ Supported Verified 2026-09-26[2]
PDF validation	✓ Supported Verified 2026-09-26[2]	? Unknown Verified 2026-09-26[2]
File upload testing	? Unknown Verified 2026-09-26[2]	✓ Supported Verified 2026-09-26[2]
File download testing	? Unknown Verified 2026-09-26[2]	✓ Supported Verified 2026-09-26[2]
OAuth testing	? Unknown Verified 2026-09-26[2]	? Unknown Verified 2026-09-26[2]
Email testing	✓ Supported Verified 2026-09-26[2]	✓ Supported Verified 2026-09-26[2]
Notification testing	? Unknown Verified 2026-09-26[2]	? Unknown Verified 2026-09-26[2]
Video content validation	? Unknown Verified 2026-09-26[2]	? Unknown Verified 2026-09-26[2]
Developer integrations
MCP server	✓ Supported Verified 2026-09-26[9]	? Unknown Verified 2026-09-26[3]
VS Code extension	? Unknown Verified 2026-09-26[9]	? Unknown Verified 2026-09-26[3]
SDK	? Unknown Verified 2026-09-26[9]	✓ Supported Official · TypeScript Verified 2026-09-26[3][6]
PR workflow
GitHub	✓ Supported Integration Verified 2026-09-26[5]	✓ Supported GitHub Action, Check runs, Commit statuses · Integration Verified 2026-09-26[5]
CI execution	✓ Supported Integration Verified 2026-09-26[5]	✓ Supported Verified 2026-09-26[5]
GitHub PR checks	✓ Supported Integration Verified 2026-09-26[5]	✓ Supported Integration Verified 2026-09-26[5]
PR-aware test selection	? Unknown Verified 2026-09-26[5]	? Unknown Verified 2026-09-26[5]
Autonomous PR validation	? Unknown Verified 2026-09-26[5]	✓ Supported Verified 2026-09-26[5]
PR comments	? Unknown Verified 2026-09-26[5]	? Unknown Verified 2026-09-26[5]
Preview deployment testing	? Unknown Verified 2026-09-26[5]	✓ Supported Verified 2026-09-26[5]
Merge gating	✓ Supported Integration Verified 2026-09-26[5]	? Unknown Verified 2026-09-26[5]
Scheduled execution	? Unknown Verified 2026-09-26[5]	✓ Supported Verified 2026-09-26[5]
Pricing
Pricing	Unknown official pricing	Free official pricing
Pricing models	Custom	Free, Subscription, Usage-based, Per parallel session, Custom, Mixed
Free tier	Unavailable	Available
Trial	Available	Unknown
Deployment
Deployment	SaaS	SaaS, Self-hosted
License	Proprietary	Proprietary
License identifiers	Not researched	Not researched
Compatibility
Languages	JavaScript, Natural language	JavaScript, TypeScript
Runner OS	Not researched	Windows, macOS, Linux
Target OS	iOS, Android	Windows, macOS, Linux, iOS, Android
Browser engines	Chromium, Firefox, WebKit	Chromium, Firefox, WebKit
Browsers	Chrome, Edge, Firefox, Safari	Chrome, Edge, Firefox, Safari
Device modes	Simulator	Responsive viewport
Creation and execution
Execution model	Browser protocol, Http client, Simulator	Browser DOM, Browser protocol, Computer vision, OS input
Authoring method	Natural language, AI-generated workflow, Imported tests, Code	Code, Recorder, Natural language, AI-generated code, AI-generated workflow, Imported tests
Code authoring	✓ Supported Supports JavaScript, Appium snippets, and Playwright tests. Verified 2026-09-26[4]	✓ Supported Stably is 100% Playwright-compatible, allowing engineers to edit selectors, assertions, and retries directly in Playwright code. Verified 2026-09-26[1][6]
Recorder	✓ Supported Verified 2026-09-26[4]	✓ Supported Verified 2026-09-26[1][9]
Natural language authoring	✓ Supported Verified 2026-09-26[4]	✓ Supported Verified 2026-09-26[1][9]
Test import	✓ Supported Supports importing Postman collections. Verified 2026-09-26[4]	✓ Supported Existing Playwright tests can be imported. Verified 2026-09-26[9]
Reusable steps	✓ Supported Verified 2026-09-26[4]	✓ Supported Implied by Playwright compatibility. Verified 2026-09-26[2]
Parameterized tests	? Unknown Verified 2026-09-26[4]	✓ Supported Implied by Playwright compatibility. Verified 2026-09-26[2]
Test data generation	? Unknown Verified 2026-09-26[4]	✓ Supported Supported via AI Extraction. Verified 2026-09-26[10]
Fit
Audience	Developers, QA engineers, Engineering managers, Nontechnical testers	Developers, QA engineers, SDET
Company size	SMB, Mid-market, Enterprise	Solo, Startup, SMB, Mid-market, Enterprise
Use cases	Pull request validation, Regression testing, Cross browser testing, Cross platform testing, Test maintenance, Test generation	Pull request validation, Regression testing, Release gating, Test maintenance, Test generation
Validation
Visual regression	✓ Supported Verified 2026-09-26[6]	✓ Supported Verified 2026-09-26[7]
Semantic visual assertions	? Unknown Verified 2026-09-26[6]	✓ Supported Verified 2026-09-26[7]
Accessibility checks	✓ Supported Verified 2026-09-26[6]	? Unknown Verified 2026-09-26[7]
API assertions	✓ Supported Verified 2026-09-26[6]	✓ Supported Verified 2026-09-26[2]
Database assertions	? Unknown Verified 2026-09-26[6]	? Unknown Verified 2026-09-26[2]
Spelling and grammar checks	? Unknown Verified 2026-09-26[6]	? Unknown Verified 2026-09-26[2]
Dark and light mode testing	? Unknown Verified 2026-09-26[6]	? Unknown Verified 2026-09-26[2]
Performance measurement	✓ Supported Verified 2026-09-26[6]	? Unknown Verified 2026-09-26[2]
Running
Local execution	✓ Supported Verified 2026-09-26[2]	✓ Supported Verified 2026-09-26[16]
Headless execution	? Unknown Verified 2026-09-26[2]	✓ Supported Verified 2026-09-26[16]
Headed execution	? Unknown Verified 2026-09-26[2]	✓ Supported Verified 2026-09-26[16]
Parallel execution	✓ Supported Verified 2026-09-26[2]	✓ Supported Verified 2026-09-26[16]
Test sharding	? Unknown Verified 2026-09-26[2]	✓ Supported Verified 2026-09-26[16]
Auto-waiting	? Unknown Verified 2026-09-26[2]	✓ Supported Verified 2026-09-26[2]
Automatic retries	? Unknown Verified 2026-09-26[2]	✓ Supported Verified 2026-09-26[2]
Network mocking	? Unknown Verified 2026-09-26[2]	✓ Supported Verified 2026-09-26[2]
Secrets injection	? Unknown Verified 2026-09-26[2]	✓ Supported Verified 2026-09-26[16]
Private network access	? Unknown Verified 2026-09-26[2]	? Unknown Verified 2026-09-26[16]
Diagnosis
Screenshots	✓ Supported Verified 2026-09-26[6]	✓ Supported Verified 2026-09-26[2]
Video recording	? Unknown Verified 2026-09-26[6]	✓ Supported Verified 2026-09-26[2]
Execution traces	? Unknown Verified 2026-09-26[6]	✓ Supported Verified 2026-09-26[2]
Console logs	? Unknown Verified 2026-09-26[6]	✓ Supported Verified 2026-09-26[2]
Network logs	? Unknown Verified 2026-09-26[6]	✓ Supported Verified 2026-09-26[2]
Replay	? Unknown Verified 2026-09-26[6]	? Unknown Verified 2026-09-26[2]
Interactive debugging	? Unknown Verified 2026-09-26[6]	✓ Supported Verified 2026-09-26[9]
Failure grouping	? Unknown Verified 2026-09-26[6]	? Unknown Verified 2026-09-26[2]
Debug artifacts	Screenshot	Screenshot, Video, Trace, Console log, Network log
Enterprise
SSO (SAML)	? Unknown Verified 2026-09-26[11]	✓ Supported Verified 2026-09-26[4]
SSO (OIDC)	? Unknown Verified 2026-09-26[11]	? Unknown Verified 2026-09-26[4]
SCIM	? Unknown Verified 2026-09-26[11]	? Unknown Verified 2026-09-26[4]
RBAC	? Unknown Verified 2026-09-26[11]	? Unknown Verified 2026-09-26[4]
Audit logs	? Unknown Verified 2026-09-26[11]	? Unknown Verified 2026-09-26[4]
Secrets management	? Unknown Verified 2026-09-26[11]	✓ Supported Verified 2026-09-26[16]
Configurable retention	? Unknown Verified 2026-09-26[11]	? Unknown Verified 2026-09-26[4]
Private runners	? Unknown Verified 2026-09-26[11]	? Unknown Verified 2026-09-26[4]
On-premises deployment	? Unknown Verified 2026-09-26[11]	✓ Supported Verified 2026-09-26[16]
Data residency	? Unknown Verified 2026-09-26[11]	? Unknown Verified 2026-09-26[4]
Training opt-out	? Unknown Verified 2026-09-26[11]	? Unknown Verified 2026-09-26[4]
Operations
Setup difficulty	low	low
Maintenance approach	Self-healing, Ai regeneration	Reusable components, Resilient locators, Self-healing, Ai regeneration
Max concurrency	null	100
Reliability mechanisms	Flaky test detection	Auto wait, Retry
Interfaces	Web UI, CLI, MCP	CLI, Web UI, API, SDK
Security
Certifications	SOC 2	Not researched
Data regions	Not researched	Not researched
Customer data used for training	Not researched	Unknown
Support
Support channels	Email, Slack, Dedicated engineer	Docs, Chat, Email, Dedicated engineer
Support SLA	Not researched	Yes
Integrations
Integrations	GitHub, GitLab, Jenkins, Jira, Slack, Microsoft Teams, Postman	GitHub