CureBranch

One public tree for cancer

Grow a branch. Help find a cure.

Open sourceYou set privacyStays on your device

Join others: add your cancer treatment records to a public, open-source digital tree where anyone, with the help of AI, can work toward a cure. You choose your privacy level. Create your branch in 3 easy steps, see how many lives your story could save, and discover treatments that worked for people like you.

Find your cancer How it works

Welcome

Your address: …

3 easy steps

  1. 1. Get startedWatch the short video and get your private code. No email, no password.
  2. 2. Your recordsConnect your patient portal and pick how much to share.
  3. 3. Your choicesWhat happens after you're gone, and your own AI if you want one.

What published research says about your branch

Real public figures with their sources. Patient-shared branches start at zero. Information, not medical advice.

Quick actions

Sharing: not chosen yet

Nothing is shared until you pick a level. Your records stay on this device.

Change how much I share

After you're gone

Current choice: Not chosen yet

Change this

Built on trust

  • Your records stay on your deviceYou decide what ever leaves it.
  • Open sourceAnyone can read the code and copy the tree.
  • Free for patients and familiesNo fees, no ads. Information, not medical advice.

Information, not medical advice. Tree figures come from published sources (SEER, cBioPortal, FDA labels, ClinicalTrials.gov), each cited. Patient-shared branches start at zero. Sources and licenses

How CureBranch works

Part 1: Learn about a cancer (anyone can do this)

  1. Open Cancer trees and pick a cancer. You can also search for it in the menu.
  2. Read the What is this page? box at the top. It tells you what the page shows.
  3. Press a button next to any word you don't know, like subtype or biomarker.
  4. Every number shows where it came from, like SEER or TCGA. Click the source to check it.
  5. If you use an AI chat tool, press Copy the prompt on the cancer page and paste it into your AI with your own records. More about using your AI

Part 2: Grow your own branch (only if you want to)

  1. Your records stay with you. You add them to this website on your phone or computer. They are saved only in this browser on this device. We have no server that keeps them.
  2. Records come from your hospital. You can connect your patient portal, or add a SMART Health Card or a FHIR file.
  3. You pick how much to share, from 4 levels. Private (device only), Basic, Detailed, or Full. Nothing is picked for you. Anything shared is shown under a random code like k7x2m9, never your name, birthday, street address or record numbers. Read about privacy
  4. Only checked records count. Records signed by a hospital or lab count in the tree's numbers. Everything else is shown but not counted. One person, one count.
  5. Your own AI, your own bill. If you want an AI to read your records, you use your own (ChatGPT, Claude, Gemini, Grok, Copilot or any other). CureBranch never runs AI on your data.
  6. You decide what happens later. You choose what happens to your summary after you die, and name a trusted person to carry it out.

The plain-English agreement

Check all 4 boxes to go on.

The step-by-step setup guide is in Settings, under Run the setup guide again. Still have questions? See Help.

Add your records

Files are read right here in your browser. Nothing is uploaded.

Add a file

SMART Health Cards are signed by the hospital or lab, so they can be verified. Plain FHIR files are kept but marked unverified.

Connect your hospital portal

Uses SMART on FHIR, the standard behind MyChart and other patient portals.

Just trying it out?

Load made-up EXAMPLE records to see how it works.

You'll use your own AI to read your records. CureBranch never runs AI on your data itself.

My branch

Kept on this device. Code: …

Your records

Photos and files

What your records show

Your branch

What to include if you go public

Your public summary


        

          
          
        

        
There is no live public index yet, so nothing is sent anywhere. See docs/open-choices.md.

      

      
Information, not medical advice.

    


    
    

      
The tree

      
      
Published data. Each limb is a cancer type, sized by U.S. new cases a year (SEER). Each tip is a gene often mutated in it (TCGA via cBioPortal). Patient-shared branches: 0 so far. Sources

      

      

        

        
Tap or pick a limb or a leafy tip to see that branch below.

      

      

      

        
        
      

      

      
      

      
Bring anything you find to your care team. Patterns in shared data aren't proof that a treatment will work for you.

    


    
    

      
Settings

      
      
You decide everything here. Changes are saved on this device and noted in your edit history.


      
Setup guide

      

        
Go through the simple step-by-step setup again. Your earlier answers are kept, and you can change them.

        
      


      
How much to share

      

        
Four levels. Nothing is picked for you. You can move to a lower level any time; that stops sharing from then on, but anything already shared stays out there.

        

      


      
After you're gone

      

        

          What happens to my public summary after I die
          
          
          
          
        

        
The person who carries this out

        
Their name stays on this device. It is never published.

        
        
        
        
        
        
        

      


      
Profile page (optional)

      

        
Your public page is …. By default it is anonymous. You can add a name and photo if you want.

        
See my recognition: helped counter, badges and share card

        
Show a name and photo
Only when your summary is public

        
        
        
        
        
        

        

          
          
        

      


      
Public contact (optional)

      

        
CureBranch has no messaging. If you want people to reach you, list a public handle you already use.

        
        
        
      


      
Your AI

      

        
You use and pay for your own AI. CureBranch stores no AI passwords or keys.

        
        
        
      


      
Notifications (optional)

      

        
Tell me when my branch gets news
Off unless you turn it on

        

      


      
Your data

      

        
        
        
The backup holds your records and your signing key. Keep it private. Anything you made public may have been copied by others.

      


      
Accessibility

      

        
        Read the accessibility statement
      



      
Open source, provided "as is", with no warranty. You own and are responsible for what you share. Information, not medical advice. Version .

    


    
    

            
Accessibility

      
      
We want everyone to be able to use this app, including people with vision, hearing, mobility, or reading differences.

      
Our goal, in plain English

      
We aim to meet WCAG 2.2 Level AA, a widely used checklist for accessible apps and websites. The app has not been formally audited or certified.

      
Screen readers and keyboards

      
Screen readers such as VoiceOver, TalkBack, NVDA, JAWS and Narrator work with every page. You can do everything with a keyboard. Every "?" help button opens with Enter or Space and closes with Escape.

      
Other languages

      
Press Translate at the top of any page to read it in another language.

      
How to change the look

      
Open Accessibility from the top corner. You can make text larger (up to 200%), choose a font including OpenDyslexic, change spacing, pick a high-contrast or colorblind-safe theme or your own colors, reduce motion, underline links, and enlarge the focus ring. Your choices stay on this device.

      
Feedback

      
Report accessibility problems on the project's public issue tracker.

    

    
    

      
Cancer trees

      
      

    


    
    

      
Help: questions and answers

      
      
      

      
Still stuck? Report a problem on the project's public issue tracker. In an emergency, call your local emergency number.

    


    
    

      
Privacy

      
      
The short version

        
    
          
  • Reading cancer pages needs no account and stores nothing about you.
    • 
          
  • Your records stay on your own device. We have no server that keeps them.
    • 
          
  • Nothing is shared until you pick a sharing level. Nothing is picked for you.
    • 
          
  • If you share, people see a random code, never your name, birthday, street or record numbers.
    • 
          
  • No ads. No tracking. No selling data.
    • 
        

      
The 4 sharing levels

        
What each sharing level shares
          
LevelWhat is shared

          
            
1. PrivateNothing. Everything stays on your device.

            
2. BasicRanges only, like "Stage 3" and "age 60 to 69", your cancer type, markers and treatments.

            
3. DetailedBasic, plus exact age and dates.

            
4. FullDetailed, plus your city.

          

        
You can turn off any part, like treatments, on My branch. Change your level any time in Settings.

      
If you change your mind

        
You can move to a lower level at any time. That stops sharing from then on. But anything already shared may have been copied by others. Only share what you would be OK with the world knowing someday.

      
Translating and AI

        
Translate on this device (in Chrome and Edge on a computer) keeps the words on your device. Browser translate in Chrome, Edge and Safari may send the page's words to Google, Microsoft or Apple. If you paste your records into an AI, that AI company's privacy rules apply. Leave out your name, birthday, address and record numbers.

      
Deleting your data

        
Go to Settings and press Delete everything on this device. Download a backup first if you want to keep a copy.

      
Information, not medical advice. See also Help and Sources and licenses.

    


    
    

      
Cancer tree

      
Information, not medical advice. Published figures describe large groups of people and cannot predict what will happen to one person.

    


    
    

      
Sources and licenses