# There Is An Open Source For That Site: https://thereisanopensourceforthat.com Purpose: Find open source alternatives to paid apps, with evidence-backed product pages, social proof, and practical deployment paths. Catalog JSON: https://thereisanopensourceforthat.com/api/catalog.json License: ODbL-1.0 ## Products - Excalidraw: Hand-drawn style whiteboard with real-time collaboration and a minimal hosted app for quick diagramming. Page: https://thereisanopensourceforthat.com/excalidraw/. Verified: 2026-07-03. - Supabase: Open source Postgres platform that builds the Firebase experience (auth, realtime, storage, functions, APIs) with a hosted platform and Docker self-hosting. Page: https://thereisanopensourceforthat.com/supabase/. Verified: 2026-07-16. - Open Design: Local-first design workspace for AI agents: BYOK, 150+ design systems, native macOS and Windows desktop app. Page: https://thereisanopensourceforthat.com/open-design/. Verified: 2026-07-03. - Apache Superset: Open source BI and data visualization platform with a no-code chart builder, SQL editor, and semantic layer. Self-host only; Apache offers no managed cloud. Page: https://thereisanopensourceforthat.com/superset/. Verified: 2026-07-15. - Vaultwarden: Bitwarden-compatible self-hosted password server for individuals, families, and small organizations. Page: https://thereisanopensourceforthat.com/vaultwarden/. Verified: 2026-07-03. - Meilisearch: Lightning-fast open source search engine API with AI-powered hybrid search, typo tolerance, search-as-you-type, and a managed Meilisearch Cloud option. Page: https://thereisanopensourceforthat.com/meilisearch/. Verified: 2026-07-16. - Coolify: Self-hostable PaaS for deploying apps, databases, and one-click services on your own servers. Page: https://thereisanopensourceforthat.com/coolify/. Verified: 2026-07-03. - Joplin: Free, open source note-taking and to-do app. Imports Evernote ENEX notebooks and syncs with E2EE via Joplin Cloud, Nextcloud, Dropbox, or OneDrive. Page: https://thereisanopensourceforthat.com/joplin/. Verified: 2026-07-16. - Penpot: Open-source design platform with real-time collaboration, design tokens, and self-host options for product teams. Page: https://thereisanopensourceforthat.com/penpot/. Verified: 2026-07-03. - Plane: Open-source project management to track issues, sprints, and roadmaps. A self-hostable alternative to Jira, Linear, and Asana with Docker and Plane Cloud. Page: https://thereisanopensourceforthat.com/plane/. Verified: 2026-07-16. - Ghost: Open source, headless Node.js CMS for publishing with memberships, subscriptions, and newsletters. Self-host or use the paid Ghost(Pro) service. Page: https://thereisanopensourceforthat.com/ghost/. Verified: 2026-07-15. - Cal.com: Open scheduling infrastructure: booking links, team routing, and round-robin. Use hosted Cal.com or self-host the open source community edition, Cal.diy. Page: https://thereisanopensourceforthat.com/cal-com/. Verified: 2026-07-16. - Bruno: Offline-first API client and CLI with Git-friendly collections for teams leaving Postman or Insomnia. Page: https://thereisanopensourceforthat.com/bruno/. Verified: 2026-07-03. - Umami Analytics: Simple, fast, privacy-focused alternative to Google Analytics with Docker self-hosting and managed Umami Cloud. Page: https://thereisanopensourceforthat.com/umami/. Verified: 2026-07-15. - Chatwoot: Open-source omnichannel customer support: live chat, email, WhatsApp, and social in one inbox. Alternative to Intercom and Zendesk. Self-host or Cloud. Page: https://thereisanopensourceforthat.com/chatwoot/. Verified: 2026-07-16. - changedetection.io: Self-hosted website change detection. Get notified via email, Discord, Slack, Telegram or webhook when a page changes. Runs in Docker or via pip. Page: https://thereisanopensourceforthat.com/changedetection-io/. Verified: 2026-07-15. - Plausible Analytics: Privacy-first web analytics with a simple dashboard, paid EU-hosted cloud, and a self-hosted community edition. Page: https://thereisanopensourceforthat.com/plausible-analytics/. Verified: 2026-07-03. - Zulip: Open-source team chat with topic-based threading for live and async work. Paid Zulip Cloud or self-host on Ubuntu, Debian, and Docker. Page: https://thereisanopensourceforthat.com/zulip/. Verified: 2026-07-15. - listmonk: Self-hosted newsletter and mailing list manager shipped as a single Go binary, with a Postgres store and SMTP-agnostic sending. Page: https://thereisanopensourceforthat.com/listmonk/. Verified: 2026-07-15. - Postal: Open source mail delivery platform for incoming and outgoing e-mail, self-hosted on Docker, a SendGrid or Mailgun alternative on your own servers. Page: https://thereisanopensourceforthat.com/postal/. Verified: 2026-07-16. - Lemmy: A federated link aggregator and forum: a self-hostable, decentralized alternative to Reddit for communities. Page: https://thereisanopensourceforthat.com/lemmy/. Verified: 2026-07-15. - OpenReplay: Open-source session replay you can self-host, with DevTools, network activity capture, and privacy controls. Open-core AGPL-3.0 with managed Cloud. Page: https://thereisanopensourceforthat.com/openreplay/. Verified: 2026-07-16. - Healthchecks: Open-source cron job and scheduled task monitoring. Listens for pings, alerts when a job fails to check in on time. Page: https://thereisanopensourceforthat.com/healthchecks/. Verified: 2026-07-15. - Palmier Pro: Open-source macOS video editor where you and your AI agent co-edit the timeline with generative models built in. Page: https://thereisanopensourceforthat.com/palmier-pro/. Verified: 2026-07-02. - Isso: Lightweight self-hosted commenting server in Python and JavaScript, a drop-in Disqus replacement that keeps comments in your own SQLite database. Page: https://thereisanopensourceforthat.com/isso/. Verified: 2026-07-15. - OpenOats: Mac-native meeting note-taker that listens, transcribes locally, and surfaces your own notes as talking points in real time. Page: https://thereisanopensourceforthat.com/openoats/. Verified: 2026-07-02. - GlitchTip: Open source error tracking, performance monitoring, and uptime checks. Compatible with Sentry SDKs. Self-host via Docker or use managed GlitchTip Cloud. Page: https://thereisanopensourceforthat.com/glitchtip/. Verified: 2026-07-16. ## Categories - Analytics & Data: https://thereisanopensourceforthat.com/category/analytics-bi/ (14 entries) - Automation & Workflows: https://thereisanopensourceforthat.com/category/automation-workflows/ (11 entries) - Bookmarks & Read-Later: https://thereisanopensourceforthat.com/category/bookmarks-read-later/ (13 entries) - Communities & Forums: https://thereisanopensourceforthat.com/category/communities-forums/ (17 entries) - Design & Creative Tools: https://thereisanopensourceforthat.com/category/design-creative/ (9 entries) - Email: https://thereisanopensourceforthat.com/category/email/ (22 entries) - Messaging & Calls: https://thereisanopensourceforthat.com/category/messaging-chat/ (33 entries) - Publishing & Social: https://thereisanopensourceforthat.com/category/publishing-content/ (12 entries) - Scheduling & Calendars: https://thereisanopensourceforthat.com/category/scheduling-calendars/ (13 entries) - Security & Privacy: https://thereisanopensourceforthat.com/category/security-privacy/ (8 entries) - Media & Entertainment: https://thereisanopensourceforthat.com/category/media-entertainment/ (5 entries) - Developer Tools: https://thereisanopensourceforthat.com/category/dev-tools/ (9 entries) ## About - About: who signs every verdict and how pages are verified. Page: https://thereisanopensourceforthat.com/about. Author: Guto Martino, Marketer. - Methodology: how license data, social proof quotes, and deploy paths are verified before publication. Page: https://thereisanopensourceforthat.com/methodology.