Programming Free

LaVague

Open-source framework for building and testing browser automation agents

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PricingFree
Starting price$0
Free planYes
Free trialYes
APIYes
Open sourceYes
DeploymentSelf Hosted
Last verifiedAugust 3, 2026
Overview

Tool overview

LaVague is listed under Programming AI tools.

Summary

What is LaVague?

LaVague is an Apache-2.0 framework for developers building AI web agents. A World Model interprets objectives and page state, while an Action Engine generates and executes browser actions through tools such as Selenium or Playwright. LaVague QA converts Gherkin specifications into browser tests.

Best fit

Best for

Developers researching or building customizable browser agents

Audience

Who is it for?

AI agent developersQA automation engineersResearch teamsPython automation developers
Recommendation

Decision note

Accepted for Preview after independent V411 official-source research. Apply only after failures = 0, warnings = 0, unmapped = 0, and all proposed changes are reviewed.

Capabilities

Key features

World Model and Action Engine architecture

Browser actions through Selenium or Playwright

Objective-based multi-step web automation

LaVague QA for Gherkin-driven testing

Workflows

Use cases

Build browser automation agents

Automate repetitive web workflows

Generate browser tests from specifications

Research web-agent behavior and reliability

Strengths

Pros

  • Apache-2.0 and open source
  • Supports customizable models and browser engines
  • Includes dedicated QA tooling
Considerations

Limitations

Success varies with page structure, model choice, and objective complexity

Sensitive data requires careful telemetry and browser-security controls

Cost

Pricing details

Pricing modelFree
Starting price$0
Free planYes
Free trialYes
Pricing context

Billing options

Free open source

Pricing context

Pricing note

LaVague is free and open source under Apache 2.0. Users pay for their own model calls, browsers, compute, storage, and deployment. Agent cost varies with the chosen models and task complexity.

View official pricing
Compatibility

Supported programming languages

  • English
Connectivity

Integrations

Selenium

Playwright

OpenAI-compatible models

Hugging Face

Specs

Technical details

PlatformsWeb
Multilingual supportYes
Login requiredYes
Open sourceYes
LicenseApache-2.0
DeploymentSelf Hosted
CompanyLaVague
Models / versionsWorld Model Action Engine
Editions / plansLaVague framework LaVague QA
Data confidenceHigh
Last verifiedAugust 3, 2026
Documentation → Source code → Release notes → Data source →
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Answers

Frequently asked questions

LaVague is an Apache-2.0 framework for developers building AI web agents. A World Model interprets objectives and page state, while an Action Engine generates and executes browser actions through tools such as Selenium or Playwright. LaVague QA converts Gherkin specifications into browser…
Developers researching or building customizable browser agents
The listed pricing model for LaVague is free. Pricing can change, so users should verify the latest plan details on the official website.
Yes. The current profile indicates that a free trial is available.
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