Yellow Lab Tools

Open-source page audit that tests front-end quality and performance issues in a page.

Artifact by Gaël Métais

IndexedGPL-2.0★ 2,463SEO & marketingNo sign-up

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Opens yellowlab.tools in a new tab. Nothing to install.

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You provide: URL
You get: Scored report of performance and quality issues
Account: No sign-up needed
AI: No AI: a plain tool
Your input: Not stated: check the tool's privacy notes before using private data
Price: Free to use
Made with: Open-source web app
Source: Open source
Link check: Answered on Oct 31, 2026

About

Yellow Lab Tools is an open-source web app in the seo marketing category (page speed). It opens in your browser, so there is nothing to install. You provide URL and get scored report of performance and quality issues. It needs no account. It is a plain tool: no AI model is involved. The source code is public on GitHub (YellowLabTools/YellowLabTools).

Category: SEO & marketing · page speed

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Stars: 2,463

Details

Auth: No auth
License: GPL-2.0
Repository: github.com/YellowLabTools/YellowLabTools
Website: yellowlab.tools/
First seen: Oct 31, 2026
Last checked: Oct 31, 2026
Source: GitHub

Cite this page

Yellow Lab Tools: free online. Agent Mart. https://agentmart.dev/artifacts/yellow-lab-tools (last updated 2026-10-31)