BSD-3-Clause

9 self-hostable open-source tools licensed under BSD-3-Clause · across 8 categories

Permissive license, very similar to MIT, with an extra "no endorsement" clause forbidding the use of contributor names to promote derivative works without permission.

One-line plain-English summary above — not legal advice. Confirm with the project's LICENSE file before commercial use.

AI chat assistant (consumer UI)

Open WebUI alive ★ 137.0k replaces ChatGPT

10min docker-compose (Open WebUI + Ollama) · $10 VPS for the UI; the model server adds the real cost — $0 on a workstation GPU, $200+/mo on cloud GPU.

Authoritative DNS hosting

NSD + Knot DNS alive ★ 545 replaces Cloudflare DNS

30min — install + zone files (similar to BIND) · $5/mo VPS minimum.

Backend-as-a-service (auth + DB + storage + realtime)

Appwrite alive ★ 56.1k replaces Firebase

10min docker-compose (single-command install) · $10 VPS for a small app; the stack pulls a few containers (server, MariaDB, Redis, InfluxDB).

Ecommerce platform

Saleor alive ★ 22.9k replaces Shopify

30min docker-compose · $15-25 VPS — Python + GraphQL + Postgres + Redis.

External uptime / availability monitoring

Healthchecks.io (self-hosted) alive ★ 10.0k replaces UptimeRobot

20min docker-compose (Django + Postgres) · $5/mo VPS.

Feature flags / progressive delivery

Flagsmith alive ★ 6.36k replaces LaunchDarkly

20min docker-compose (Django + Postgres + InfluxDB optional) · $10/mo VPS.

Mesh VPN / zero-config networking

Headscale alive ★ 38.3k replaces Tailscale

20min (single Go binary + reverse proxy) · $5 VPS — coordination only, traffic is peer-to-peer.
Netbird alive ★ 25.2k replaces Tailscale

30min docker-compose (management + signal + relay) · $5-10 VPS for the management plane.

Visual website builder + CMS

GrapesJS + a CMS alive ★ 25.8k replaces Webflow

60min+ (you assemble: GrapesJS editor + a backend like Strapi/Directus) · $10 VPS once assembled.