Why support us
Clear cancer answers, free for everyone
A cancer diagnosis is frightening and confusing enough without hitting a paywall or a wall of jargon. Cancer Explained turns trusted information into plain, calm language — free, ad-free, and open to anyone. Your support is what keeps it that way.
A growing, free library
0+ free resources
Every explainer, knowledge check, and answer on Cancer Explained is free, based on trusted National Cancer Institute resources, and written in plain language. Here’s what’s waiting for you.
What your gift makes possible
We’re a small nonprofit, so support goes a long way. Here’s what gifts help us do.
Keep it free and ad-free
No paywalls, no ads, and we never sell your data. Your gift keeps every guide open to anyone who needs it.
Reach more people, in more languages
Cancer doesn't only speak English. Support helps us translate more of the library so more families can understand it.
Add new guides and tools
From symptoms to survivorship, gifts help us write new plain-language guides and build helpful tools.
Keep content reviewed and current
Cancer information changes. Support helps us review and update guides so they stay accurate and trustworthy.
Why you can trust Cancer Explained
- Trusted sourcesBased on NCI, NIH, CDC, FDA & peer-reviewed research
- Honest about AIAI-assisted and source checked — not reviewed by a healthcare professional unless specifically stated
- Ad-free & privateNo ads, and we never sell your data
- Always freeNo paywalls, no login required
- NonprofitA project of a 501(c)(3) tax-exempt public-benefit nonprofit
- Plain languageWritten to be clear, calm, and easy to read
See exactly how we create and review our content, or read our transparency & governance page.
Help keep cancer answers free
If these guides have helped you or someone you love, a gift of any size helps us keep them free — and keep adding more.
National Cancer Information Foundation is recognized by the IRS as tax-exempt under Section 501(c)(3) of the Internal Revenue Code, effective July 7, 2026, and is classified as a public charity under Section 170(b)(1)(A)(vi). Contributions are tax-deductible to the extent allowed by law; your own deductibility depends on your individual tax situation, so please consult your tax advisor for specifics. This covers gifts made on or after July 7, 2026 — including gifts made before the IRS letter itself arrived — since the exemption is effective retroactive to that date.