purplemux is a web-native dashboard for Claude Code and Codex sessions — see all your parallel AI sessions on one screen, get push notifications when a task finishes or needs input, access from mobile via PWA, and keep sessions alive with persistent tmux. MIT, one command to install.
Coder is the self-hosted platform for cloud development environments — reproducible workspaces defined in Terraform, running on Kubernetes, EC2, or Docker, connected through WireGuard tunnels. Coder Agents delegate coding to Claude Code in governed workspaces. AGPL-3.0, 14k stars.
Webstudio is the open-source Webflow alternative — full CSS control in a visual canvas, clean Remix/React output, Cloudflare Edge hosting, self-hostable exports, and any headless CMS. One $15/mo Pro plan covers unlimited sites where Webflow charges per site. AGPL-3.0, 8.5k+ stars, TypeScript.
Baserow is the open-source no-code database — self-hosted Docker with unlimited rows, or cloud free. Build databases, apps, automations, and dashboards without code. MIT licensed, Airtable alternative, Kuma AI builds complete apps from a plain-language prompt. 150k+ users, Django + PostgreSQL.
Beekeeper Studio is the open-source SQL editor that makes DBeaver look like a Java IDE. Clean dark UI, tabbed queries, autocomplete, SSH tunnels, zero telemetry — free GPLv3 Community edition, $99/yr Ultimate adds Oracle, MongoDB, AI Shell. PostgreSQL, MySQL, SQLite, SQL Server, 15+ databases.
Polar is the open-source Merchant of Record built for developers — subscriptions, one-time products, usage-based billing, license keys, and GitHub Sponsors integration, with VAT/GST/sales tax handled automatically across 60+ countries. Apache 2.0, YC W23, TypeScript SDK, free to start.
Memos is the self-hosted note-taking tool that gets out of your way. One Docker command, a timeline of Markdown notes, tags, full-text search, public or private visibility per note, REST API, and MCP integration. MIT, 61k+ stars, Go + SQLite. No folders, no workspaces, no friction.
CrowdSec is the collaborative open source IPS and WAF — detects brute-force, port scans and web exploits, blocks via bouncers at the firewall or reverse proxy. The community blocklist from 200,000+ installations means you block known attackers before they reach you. MIT, Go, free forever.
n8n is the workflow automation platform for technical teams — 400+ integrations, visual builder plus real code when you need it, native AI agents with human-in-the-loop, and self-hostable under a fair-code license. 197k+ GitHub stars, used by teams who outgrew Zapier.