Free Invite your team at no cost
Diagrams, data models and docs, together
One project holds the diagrams, the database models and the notes for a piece of work. Your team edits them with you, live, and a chat that has read all of them can answer questions and make changes for you.
One project, three kinds of document
Everything about a piece of work, side by side
No more diagrams in one tool, the database in another and the decisions in a third. Link any document from any other, and the link survives renaming and moving.
Diagrams
Zones, services, datastores, people and notes, joined by connectors that find their own way around. Export as SVG, PNG or JSON.
Data models
Read the structure of a Postgres database, or bring it in as JSON, and see it as a map of tables and how they relate. Descriptions keep their own history.
Markdown
Notes, decisions and runbooks in a tree you arrange yourself. Drop in whole folders of .md files, and the links between them keep working.
Live
Work on the same thing at the same time
Open a document someone else has open and you see them in it. Nobody waits for anyone, and nothing gets overwritten without a trace.
- Every change appears as it happens: boxes being dragged, connectors being drawn, text letter by letter.
- Cursors with names on them, and a click on someone's initials follows what they are looking at.
- Undo takes back your own changes, never someone else's.
- Every save is kept as a version. View an old one, and put it back if you need to.
- An activity log says who did what, even after it has been deleted.
- If the connection drops, keep working. Your edits wait, and go through when it is back.
AI
A chat that has read the whole project
Ask what a diagram means, how two tables relate, or what was decided and why. Ask it to write up a decision or change a diagram, and its edits arrive live for everyone.
Your messages and what the chat reads are sent to Anthropic, which makes the AI. The privacy policy says more.
- It reads diagrams, models and markdown, and the pictures in a diagram too.
- It writes and changes markdown files and diagrams, and keeps every one it touches as a version, so any change can be undone.
- It stays inside the project. It can't delete a document or reach anything else.
- Your chats are yours. Nobody else in the project can read them.
- Bring your own Anthropic key on any plan, the free one included, or use the plan credit each plan includes.
The point
Inviting your team is free
You pay for an account, not for every person in it. Everyone you invite works with you at no cost to them, and being invited doesn't use up their own free project.
Yours
Your work stays your work
Bitlapa is paid for by the people who use it, not by adverts, so there is nothing to gain from watching you.
- Download everything in a project, or everything you have, whenever you like.
- No tracking, no adverts, nothing from other sites. The only cookie keeps you signed in.
- Nobody can use Bitlapa to find out who has an account. Inviting someone looks the same either way.
- An Anthropic key you add is encrypted, and Bitlapa can never show it again. The privacy policy says plainly what that can't promise.