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Apache Superset

Observability & Analytics

Apache Superset

Apache Superset is an open-source, SQL-first data exploration and visualization platform for creating interactive charts and dashboards on live data. It combines a built-in SQL IDE (SQL Lab), a no-code Explore interface, and an extensible chart plugin system so analysts can run live queries and publish visualizations without proprietary BI

Developer & DevOps

Gitea

Gitea is a lightweight, open-source, self-hosted Git forge that provides repository hosting, code review, issue tracking, basic CI/CD, and team collaboration with low resource and cost overhead. It is an all-in-one software development service for Git, implemented in Go, offering Git hosting, pull/merge requests, issues, wikis, a package

Networking & Realtime

Cloudflared

cloudflared is Cloudflare’s lightweight client daemon for Cloudflare Tunnel; it creates an outbound, encrypted connection from your origin to Cloudflare so you can expose or access services without a public IP. It runs as a CLI daemon/connector and lets origins initiate outbound-only tunnels so traffic can be proxied,

Media Automation & Downloaders

Overseerr

Overseerr is a free, open-source media request and discovery app. It centralizes user requests for Plex/Emby/Jellyfin and automates delivery via Radarr/Sonarr. It is a UI-first request and approval workflow designed for discoverability, request tracking, and automation. It targets individuals, households, and small community groups that run self-hosted

Developer & DevOps

Forgejo

Forgejo is a lightweight, community-governed, self-hosted software forge for hosting and collaborating on Git repositories with built-in issues, pull requests, code review, package registries, and Actions-style workflows. It focuses on keeping all core features fully open-source and minimizing resource use. One-sentence value: Forgejo provides a central, Git-compatible collaboration platform you

Content & Sites

Wiki.js

Wiki.js is a modern, open-source, Node.js-based wiki engine for writing, organizing, and versioning team documentation in Markdown or a visual editor. It provides a fast, extensible docs layer with page versioning, search, rich auth, and Git integration. It fits individuals and small to mid teams that need a

Data Stores & Backends

Weaviate

Weaviate is an open-source, AI-native vector database that stores objects alongside vector embeddings and exposes GraphQL and REST APIs for semantic and hybrid search; it delivers fast, structured semantic retrieval for RAG, recommendations, and search features. It suits individual builders, small engineering teams, and product or data leaders who need

Forms & Feedback

Fider

Fider is an open-source product-feedback and feature-voting platform for collecting, surfacing, and prioritizing customer suggestions. It provides a simple vote-driven board where users submit ideas, vote, comment, and view admin prioritization; it exposes a REST API and supports OAuth for integration and authentication. It is open-source, so teams control data

Web & Dev Utilities

Slash

Slash (getslash.co) is a lightweight productivity app that combines prioritized task lists, time‑limited tasks, and simple time tracking. One-sentence value: Slash helps do‑ers stay focused by combining an Eisenhower Matrix for prioritization, explicit task time limits, and basic time tracking in a low-cost single app. It targets

Developer & DevOps

GitLab

GitLab is an end-to-end DevSecOps platform built around Git that combines source control, CI/CD, security, and project lifecycle features in a single product. It offers a single app for code, CI/CD, security scanning, registries, and basic project management, reducing tool sprawl and automating build, test, deploy, and security

Search/Bookmarks/Start Pages

Homarr

Homarr is an open-source, highly customizable web dashboard that centralizes links, status, and widgets for self-hosted apps and services. Its core purpose is to give individuals and small teams a visual, drag-and-drop launcher and lightweight status surface so apps are easier to find and open from one page. It suits

Developer & DevOps

Baby Buddy

Baby Buddy exists in two distinct forms: an open‑source, self‑hosted Django web app for logging baby activities (sleep, feeds, diapers, tummy time) with multi‑child support and a JSON API while keeping data under your control, or a separate UK charity–backed Baby Buddy app that delivers evidence‑

Developer & DevOps

PG Back Web

PG Back Web is an open-source web UI and service that manages PostgreSQL logical backups using pg_dump and psql. It provides scheduled backups, local or S3-compatible storage, basic encryption (environment-key based, details unverified), and restore controls from a browser-based dashboard. The project is AGPL v3 and self-hosted only. It

Work Management

Penpot

Penpot is an open-source, web-based design and prototyping tool built to align designers and developers with code-friendly, collaborative workflows. It is geared to individual makers, small product teams, and organizations that prefer open-source governance. Penpot reduces handoff friction by exposing styles and code-like outputs, supports real-time collaboration and commenting, and

Developer & DevOps

CodiMD

CodiMD (now HedgeDoc) is an open‑source, collaborative, web‑based Markdown editor for real‑time note‑taking, presentations, and team documentation. It provides lightweight, Markdown‑first collaboration for small technical teams that want data control, revision history, and low software cost. It is for engineers, analysts, educators, and small product

Developer & DevOps

Kuzzle

Kuzzle is an open-source, self-hostable backend platform: a document-store API, real-time layer, and plugin framework. It ships SDKs, an admin console and a CLI. One-sentence value: Kuzzle provides real-time data, advanced search, security and extensibility so teams can ship web, mobile and IoT backends faster. It targets small engineering teams

FoundryVTT

Foundry Virtual Tabletop (FoundryVTT) is a highly extensible, self-hosted virtual tabletop for running tabletop RPGs through a browser, focused on customization, community modules, and a one-time license model. Its core purpose is to host persistent campaign state and enable deep automation and UI extensions through a versioned JavaScript API. It

Flowise

Flowise is an open-source, visual low-code platform for building LLM workflows and AI agents. It provides a drag-and-drop editor, a LangChain-compatible node library, and connectors for prompts, retrieval, tool calls, and multi-agent logic. One-sentence value: a vendor-neutral, extensible orchestration layer you can run under your control. It is aimed at

Data Stores & Backends

Convex

Convex is a TypeScript-first, open-source reactive backend combining a database, server functions, and client libraries. Its core purpose is automatic real-time synchronization, transactional server functions, and developer ergonomics so teams can build dynamic web and AI-assisted features quickly. One-sentence value: Convex makes real-time and AI-assisted apps simple to build and

Search/Bookmarks/Start Pages

Redlib

Redlib is an open-source, privacy-focused private front-end for Reddit that lets users browse Reddit without client-side tracking. It proxies Reddit requests and provides a lightweight, tracking-free read surface that removes heavy JavaScript and client-side trackers, improving load times and reducing fingerprinting risk for readers. It is aimed at privacy-conscious individuals,

Business & Finance

Listmonk

Listmonk is a high-performance, open-source, self-hosted newsletter and mailing-list manager for sending and analysing bulk and transactional email at scale. It runs as a single Go binary with a Vue web UI and stores data in PostgreSQL. The project is AGPL v3 licensed and exposes REST-like APIs for automation. It

Observability & Analytics

PostHog

PostHog is an open-source, developer-centric product analytics platform that combines event analytics, session replay, feature flags, experiments, and data pipelines in one product. It can be self-hosted or used as a managed PostHog Cloud service. One-sentence value: strong unified feature set and transparent pricing; watch scale and enterprise feature gaps.

Networking & Realtime

Ntfy

Ntfy is an open-source, HTTP-based pub/sub push-notification service for sending scriptable notifications to phones and desktops. It accepts HTTP PUT/POST to publish messages to topics and delivers them to subscribers via mobile, desktop, web, and CLI clients. Built for developers, power users, and small teams that want low-friction,

Media Automation & Downloaders

Transmission

Transmission is a lightweight, open-source BitTorrent client that provides native macOS, Windows, and Linux builds with a native GUI, web UI, and a headless daemon. One-sentence value: Transmission offers simple, efficient peer-to-peer file transfer with low resource use and no ads. It fits individuals who want a minimal desktop client

Identity & Security

Onetime Secret

Onetime Secret is a web service with an open-source repository and an API that generates one-time-view, encrypted links for secrets. One-sentence value: Onetime Secret provides single-use, encrypted links to share sensitive text or credentials that auto-destroy after being read, avoiding persistent storage in chat, email, or logs. It targets individuals