How to use Claude Projects
Last updated July 2026
Claude Projects let you group related chats and add reference files (docs, notes, guidelines) that Claude reuses across every conversation in that Project. Use them for ongoing work, a client, a book, a codebase, so you stop re-explaining the same context every time you start.
- 1
Create a Project
In the sidebar, create a new Project and give it a clear name: a client, a topic, or a goal.
- 2
Add project knowledge
Upload the files and paste the notes Claude should always know, style guides, briefs, data, so it references them automatically in every chat.
- 3
Set custom instructions
Tell the Project how to behave once, tone, format, the role it should play, and it applies to every conversation inside.
- 4
Work in chats inside the Project
Each new chat inherits the knowledge and instructions, so you begin with full context instead of a blank slate.
- 5
Keep the knowledge current
Update the project files as things change; Claude uses the latest version you have added.
Quick tips
- Use one Project per ongoing context, not one giant Project for everything.
- Put your brand or voice guide in project knowledge so output always sounds like you.
Frequently asked questions
What is the difference between a Project and a normal chat?
A normal chat forgets everything when it ends. A Project remembers shared files and instructions across all of its chats, so context carries over.
Do I need a paid plan for Claude Projects?
Projects are available on Claude's paid plans. Check claude.com for the current plan details.
How much can I put in project knowledge?
Enough for most real work. Add the documents and guidelines Claude should always reference, and trim anything irrelevant to keep answers focused.