Awesome Free Web Developer Tools

A curated list of free tools every web developer should know about. No signup walls, no credit card required.

Contents

• Screenshots & Visual Testing
• PDF Generation
• SEO & Meta Tags
• Performance & Auditing
• Color & Design
• Monitoring & Uptime

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Screenshots & Visual Testing

Tool	Description	Free Tier
GrabShot	Screenshot API with device frames and AI cleanup	25 screenshots/mo
Puppeteer	Headless Chrome automation by Google	Open source
Playwright	Cross-browser automation by Microsoft	Open source
Screenshot.rocks	Browser mockup generator	Free
Urlbox	Automated website screenshots	100/mo free

PDF Generation

Tool	Description	Free Tier
PDFMagic	HTML/URL to PDF API with custom headers/footers	25 PDFs/mo
Gotenberg	Docker-based PDF generation	Open source
WeasyPrint	Python HTML to PDF	Open source
PDFShift	HTML to PDF conversion API	50/mo free

SEO & Meta Tags

Tool	Description	Free Tier
OG Checker	Check Open Graph, Twitter Cards & meta tags	Unlimited, free
Meta Tag Generator	Generate OG, Twitter Card & SEO meta tags	Unlimited, free
MetaPeek	Meta tag extraction API	25 requests/mo
Metatags.io	Meta tag preview tool	Free
OpenGraph.xyz	Open Graph preview	Free

Performance & Auditing

Tool	Description	Free Tier
WebGrader	SEO, security & performance grading	Unlimited, free
PageAudit	Website performance & SEO audit API	25 audits/mo
PageSpeed Insights	Google's performance analysis	Free
GTmetrix	Website speed testing	Free
WebPageTest	Detailed performance testing	Free

Color & Design

Tool	Description	Free Tier
Coolors	Color palette generator	Free
Realtime Colors	Visualize colors on a real site	Free
ColorHunt	Color palette inspiration	Free

Monitoring & Uptime

Tool	Description	Free Tier
UptimeRobot	Website monitoring	50 monitors free
Freshping	Status pages & monitoring	50 checks free
Cronitor	Cron job monitoring	5 monitors free

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Contributing

Found a great free tool? Open a PR! Requirements:

• Must have a genuinely free tier (not just a trial)
• Must be useful for web developers
• Include a brief description and free tier details

License