ToolsHub ā 35+ free online tools for everyone. No sign-up, no download. PDF tools, converters, calculators, generators and more.
What makes it different:
ā Zero paid APIs
ā MCP-compatible API ā every calculation tool is accessible via the Model Context Protocol, so AI assistants like Claude can call ToolsHub's tools directly
ā Designed for SEO ā every tool page has structured FAQs, canonical tags, OpenGraph metadata, and a registry-driven sitemap
Also available as a REST JSON API.