Own the list
Manage subscribers, lists, imports, suppressions, and consent from one local operator surface.
Open-source, self-hosted, AI-native
Own the newsletter loop from list growth to send.
Broadside is a local-first operating system for independent newsletter creators: manage subscribers, campaigns, sponsors, delivery health, and public archives while keeping your data in Postgres.
Weekly vertical brief
Campaign ready for review
Lists
Owned subscribers
Campaigns
Draft, preview, send
Sponsors
Placements + reports
Engagement
Clicks, opens, bounces
50k
target list size
4-8h
weekly loop
v1
API + MCP
Built for creator-operators
The public surface stays thin; the admin, API, CLI, SDK, and MCP metadata carry the work.
Send campaigns
Create, preview, schedule, send, archive, and track campaigns through contract-first APIs and admin UI.
Place sponsors
Track sponsors, creatives, placements, and reconciliation while keeping creator-side operations local.