Postlight Mercury Alternatives

The open-source, self-hosted internet archiving solution.

Key ArchiveBox features:

Offline website saving Tagging Scheduled archiving Recursive crawling

Open Source free

Free tool for testing how good your website is, and what you can do to improve it. Check accessibility, SEO, social media, compliance and more.

Key Nibbler features:

User-Friendly Interface Detailed Reports Free Basic Analysis Benchmarking

Automated security scanner for LLM APIs — catch prompt injection, data leaks, and tool abuse.

Key PromptBrake features:

Security Tests Supported Providers CI/CD Integration Privacy & Security

Try for free paid Free Trial $49.0 / Monthly (Scout)

All your articles, photos, video & content from web & apps in one place.

Key Raindrop.io features:

User-Friendly Interface Cross-Platform Availability Rich Bookmark Management Collaborative Features

Open Source freemium

All in one SEO and PPC tools for better marketing.

Key Topvisor features:

Comprehensive SEO Tools Accurate Rank Tracking User-Friendly Interface Customizable Reporting

paid Free Trial $0.15 (100 keywords)

Save the web, freely.

Key wallabag features:

Open Source Self-Hosting Cross-Platform Offline Access

Open Source

Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.

Key Moz features:

Comprehensive Toolset Ease of Use MozBar High-Quality Educational Resources

Internet Archive is a non-profit digital library offering free universal access to books, movies...

Key Archive.org features:

Extensive Collection Free Access Wayback Machine PDF and ePub Formats