Syncthing is a free, open-source, peer-to-peer continuous file synchronization tool that keeps folders synchronized across devices without a third‑party cloud, giving you control over data location and encryption. It targets privacy-conscious individuals, home-lab operators, small technical teams and developers who need continuous cross-device sync without vendor cloud storage. Good

FileFlows is a self‑hostable GUI tool for designing, scheduling and running automated file‑processing pipelines for video, audio, images, e‑books and archives. It replaces manual or script‑heavy media workflows with repeatable local automation via a web console. It suits home‑lab users, small creative teams, and small

ownCloud is an open-source, self-hosted file sync, share, and collaboration platform. It provides file synchronization across devices, a web UI, federated sharing, and external connectors while keeping data under customer control. It also supports file versioning, file locking, virtual files, and APIs for integrations. It is aimed at individuals, small

Immich is an open-source, self-hosted photo and video backup and management platform. It provides native iOS and Android clients for automatic device backup, a responsive web UI for browsing and management, and on‑server features such as deduplication, face recognition, smart tagging, and background processing for thumbnails and transcoding. The

MinIO is an S3‑compatible object storage server engineered for high throughput and scalable, distributed deployments. It targets AI/ML platforms, analytics, data lakes and other large‑dataset workloads and provides a Kubernetes Operator and deployment patterns for cloud‑native and on‑prem environments. Self‑hosting MinIO gives teams control

Duplicati is an open-source backup client that makes encrypted, incremental and compressed backups from your machine to cloud, remote or local storage. It runs on Windows, macOS and Linux and can be self-hosted via a local web UI, CLI or container image; you keep control of the backup destination (your

Seafile is a self-hostable file synchronization, sharing and collaboration platform built for efficient storage and reliable syncing. It uses block-level (delta) sync, chunked storage and a commit-like versioning model to keep bandwidth and disk use low while preserving detailed file history. The product targets technically capable self-hosters and small-to-medium organizations

Stirling PDF is a free, open-source web application you run on your own server that bundles a large collection of PDF editing, conversion, annotation and manipulation tools. It exposes a browser UI and a toolbox of 50+ operations (merge, split, annotate, redact, convert, compress, encrypt, etc.) so you can keep

Paperless-ngx is an open-source, self-hosted document management system that digitizes paper and makes documents searchable through OCR, tagging, workflows and a web UI. It runs as Docker containers by default, supports watch folders, a REST API, PDF editing, and optional integrations (Apache Tika, SSO) to broaden file-type support and access

File Browser (filebrowser) is a lightweight, self-hosted web file manager that exposes a chosen directory over a browser UI. It provides browsing, uploading, downloading, previews and basic in-browser editing, packaged as a single Go binary or official Docker image so you can run it on a VPS, NAS, Raspberry Pi

Zipline (Quantopian) is an open-source, event-driven Python backtesting library for developing and evaluating algorithmic trading strategies. It targets practitioners who need realistic execution modeling, portfolio accounting, and research workflows without relying on proprietary platforms. Built around Pandas-friendly data structures and a Pipeline-style API for factor computation, Zipline streamlines the separation

Nextcloud is an open‑source, self‑hosted cloud platform for file sync and share with integrated collaboration apps such as documents, calendar, mail, chat, and tasks. It aims to replace commercial cloud suites while keeping your data on infrastructure you control. It’s designed for privacy‑conscious users, IT teams,