Test frameworks and automation

Composal vs Puppeteer

Puppeteer is a low-level library that developers use to build their own browser workflows. Composal supplies a hosted QA process with natural-language Scenarios, application Discovery and exploratory runs.

See where each fits ↓

Two workflows, side by side

Composal

Composal sends AI browser agents to use your running web app and check the outcomes you care about. Define journeys as plain-English Scenarios, map existing flows with Discovery, or explore for bugs with Deep Scan. Runs keep recordings and reproduction steps so your team or coding agent can investigate a Finding.

Verify documentation →

Puppeteer

JavaScript browser automation

Puppeteer is a JavaScript library for controlling Chrome or Firefox through DevTools Protocol or WebDriver BiDi. The project documents browser automation, testing recipes, screenshots and PDF generation.

What each tool does

“With setup” means you supply code or configuration. “Not confirmed” means support for this workflow needs checking with the vendor.

Composal and Puppeteer workflow capabilities
Workflow	Composal	Puppeteer
Run browser journeys	Yes Run saved browser Scenarios and return recordings and reproducible Findings.	Yes Runs browser journeys as authored tests; teams define and maintain the test flow.
Map application workflows	Yes Discovery maps key application areas and user journeys.	Not confirmed Check whether this product includes this workflow in your intended plan and setup.
Explore for unexpected issues	Yes Deep Scan explores the running application and reports reproducible issues.	Not confirmed Check whether this product includes this workflow in your intended plan and setup.
Describe checks in plain English	Yes Author Scenarios around the intended user outcome, then review the steps and expected results.	With setup Write executable tests, scripts, or structured keywords to define the steps and expected results.
Run or inspect from a terminal	Yes Use the CLI to start and inspect verification runs and their Findings.	With setup Run configured tests through the product’s supported developer tools or CI integration.

Where each fits

Choose Puppeteer for custom scripts, browser tooling or tests close to a Node application. Choose Composal when product teams need to express browser outcomes and share reproducible QA evidence with engineers.

Try this evaluation

Automate an account-settings journey with Puppeteer, then ask Composal to verify the same expected result and explore adjacent settings. Compare code ownership, time to broaden coverage and clarity of the failure report.

Coverage: Which user outcomes must this release prove, and which specialist checks must stay in your existing stack?
Setup: Who prepares accounts, test data, permissions and access to the deployment being tested?
Evidence: Can the engineer reproduce a reported failure from the recording and steps, without asking the tester to investigate again?
Ownership: Who updates the checks when the product changes, and can the team review what a passing result actually proves?