The platform
Stop losing what your team knows
Your team's docs, decisions, and research — all in one place, synced with your repo. Everyone can edit. No one needs git.
The problem
Your docs are in five places. Your team wastes time finding the latest version.
Research in Google Docs. Specs in Notion. Decisions in Slack threads. READMEs in GitHub. And half of it lives in someone's head. When that person leaves, the knowledge goes with them.
MainStreet puts everything in one place — and keeps it synced with your repo.
Editing
Write together without learning markdown
A clean editor where your team writes in plain text. Headings, code blocks, diagrams, callouts — everything formats automatically. No syntax to learn.
Version control
See who changed what and go back if you need to
Every change is tracked. Create branches to draft new content. Review changes before they go live. Always know who wrote what and why.
GitHub sync
Your repo and your docs stay in sync
Changes in MainStreet push to GitHub. Changes in GitHub appear in MainStreet. Your team edits in a clean UI. Your repo stays up to date.
Collaboration
Edit the same page at the same time
Multiple people in one document at once. See each other's cursors and edits as they happen. Leave comments. Resolve them. Fewer meetings, more progress.
Publishing
Publish docs your customers can find
Turn your internal docs into a public site with your own domain. Every page loads fast and ranks in search. Your readers see the polished result. Your team keeps the living source.
AI-ready
Your AI tools get smarter with real knowledge
AI assistants work better when they know what your team knows. MainStreet gives them access to your docs, decisions, and history — not just the code.