25 GitHub Repos That Replace All Your Subscriptions

Every year subscription prices go up and features get worse. Notion raises prices and adds AI nobody asked for. Google kills products people depend on. Adobe locks files behind formats only their tools can open. Meanwhile open-source alternatives have gotten quietly excellent. Self-hosting in 2026 is no longer a buggy hobby. It's a real option for anyone who doesn't want to rent their own tools forever. 25 replacements across 10 categories. Each one with what it replaces, what it costs, and whether it's actually worth switching👇 Before we dive in, I share daily notes on AI & vibe coding in my Telegram channel: https://t.me/zodchixquant🧠 Productivity & Notes 01 — Obsidian replaces Notion ($10/mo) Local-first markdown editor. Your notes are files on your computer, not rows in someone else's database. Free for personal use. https://obsidian.md/ 02 — AppFlowy replaces Notion ($10/mo) for teams If you need Notion's collaborative features but don't want your data on their servers. Self-hostable, AI-ready, works offline. The closest Notion clone that's actually open-source. github.com/AppFlowy-IO/AppFlowy · 55K+ ⭐ 03 — Cal.com replaces Calendly ($12/mo) Full scheduling tool. Custom booking pages, team scheduling, integrations. Self-host for free or use their cloud. Calendly but you own it. github.com/calcom/cal.com · 40K+ ⭐ Communication 04 — Mattermost replaces Slack ($8/user/mo) Enterprise-grade team chat. Channels, threads, integrations, file sharing. Free community edition. Companies like Samsung and the US Department of Defense use it. github.com/mattermost/mattermost · 32K+ ⭐ 05 — Chatwoot replaces Intercom ($39/mo) Customer support platform. Live chat, email, social media, WhatsApp in one inbox. Self-hosted and free. github.com/chatwoot/chatwoot · 22K+ ⭐ Analytics 06 — Plausible replaces Google Analytics (free but harvests your data) Lightweight, privacy-first analytics. No cookies, no consent banners, GDPR-compliant by default. One-line script. Self-host for free. github.com/plausible/analytics · 22K+ ⭐ 07 — Umami replaces Google Analytics Even simpler than Plausible. Privacy-focused, fast, clean dashboard. Self-host in minutes. github.com/umami-software/umami · 25K+ ⭐ 08 — PostHog replaces Mixpanel ($28/mo) + Hotjar ($39/mo) + LaunchDarkly ($10/mo) Does analytics, session replay, feature flags, A/B testing, and surveys. Replaces 4-5 paid tools. Self-host for free. This one alone saves most startups $100+/mo. github.com/PostHog/posthog · 25K+ ⭐ Design 09 — Penpot replaces Figma ($15/user/mo) Browser-based design tool. Real-time collaboration, components, prototyping. The only serious open-source Figma alternative. Self-host or use their cloud for free. github.com/penpot/penpot · 35K+ ⭐ Security & Passwords 10 — Bitwarden replaces 1Password ($3/mo) Open-source password manager. Cross-platform, browser extensions, 2FA support. Free tier covers everything most people need. github.com/bitwarden · Widely audited 11 — Vaultwarden replaces 1Password ($3/mo) for self-hosters Lightweight Bitwarden-compatible server you run yourself. Works with all official Bitwarden apps. Your passwords never leave your network. github.com/dani-garcia/vaultwarden · 42K+ ⭐ Development & Hosting 12 — Coolify replaces Vercel ($20/mo) + Heroku ($25/mo) Self-hosted PaaS. Deploy anything with Docker on your own server. One-click deploys, SSL, databases. Heroku-like interface without the Heroku pricing. github.com/coollabsio/coolify · 40K+ ⭐ 13 — Supabase replaces Firebase ($25+/mo) Open-source backend. Postgres database, auth, storage, edge functions, realtime subscriptions. Generous free tier. Self-hostable. github.com/supabase/supabase · 78K+ ⭐ 14 — Gitea replaces GitHub ($4/user/mo) Lightweight self-hosted Git service. Repos, issues, pull requests, CI/CD. For teams that need to keep code on their own servers. github.com/go-gitea/gitea · 48K+ ⭐ Automation 15 — n8n replaces Zapier ($20/mo) Visual workflow automation. 400+ integrations, native AI nodes, self-hosted. No per-task pricing. The Zapier killer that's been growing quietly for years. github.com/n8n-io/n8n · 55K+ ⭐ 16 — Activepieces replaces Zapier ($20/mo) Fully open-source alternative to Zapier. Simpler than n8n, easier to set up. Unlimited flows on self-hosted. github.com/activepieces/activepieces · 12K+ ⭐ Documents & Office 17 — OnlyOffice replaces Google Workspace ($7/user/mo) Docs, sheets, presentations with real-time collaboration. Compatible with Microsoft Office formats. Self-host for free. github.com/ONLYOFFICE · 5K+ ⭐ 18 — Nextcloud replaces Google Drive ($3/mo) + Docs + Calendar + Contacts Full productivity suite. File sync, document editing, calendar, contacts, video calls. Self-hosted. The all-in-one Google replacement that actually works. github.com/nextcloud/server · 29K+ ⭐ Email & Newsletters 19 — Listmonk replaces Mailchimp ($13/mo) Self-hosted newsletter and mailing list manager. Handles millions of emails. Pair with