Keep the tools free

36118.com has no paywall and no sign-up. Advertising covers part of the cost; supporters cover the rest and let us move faster. You choose where your contribution goes.

Where support goes

• Operations: hosting, data sources, security and maintenance.
• New tools and content: fees for writers, researchers and developers.
• Promotion and marketing: reaching students, founders and investors who need these tools.
• Contests and prizes: funding the Number Hunt prize pool.

Other ways to help

• Share a tool with someone who would use it.
• Link to a guide from your site or course.
• Report an error or suggest a tool on the contact page.

Contributions are voluntary support for an independent website and are not tax-deductible charitable donations. Supporters who opt in are thanked on the site.