With over 107,000 GitHub stars and adoption by teams at Mozilla, 1Password, Peerlist, and thousands of startups, Supabase has become the most widely deployed open-source Firebase alternative — built entirely on PostgreSQL rather than a proprietary NoSQL store. Every project provisions a dedicated Postgres database with 40+ preinstalled extensions, auto-generating REST APIs via PostgREST, GraphQL via pg_graphql, and real-time change streams via an Elixir-based WebSocket engine that supports database change listeners, user presence tracking, and arbitrary broadcast messaging. Authentication covers email and password, phone OTP, magic links, and 20+ social providers including Google, GitHub, Apple, Azure, and SAML SSO, all enforced through Postgres Row Level Security policies that run inside the database itself. S3-compatible object storage delivers files through a CDN spanning 285+ cities with on-the-fly image transformations powered by imgproxy. Edge Functions run globally distributed TypeScript on the Deno runtime with Node.js compatibility and access to over two million NPM packages. The pgvector extension stores, indexes, and queries vector embeddings for AI-powered semantic search and retrieval-augmented generation workflows. Supabase Studio provides a browser-based dashboard with a table editor, SQL editor, schema visualizer, and log explorer. Official client SDKs ship for JavaScript, Python, Flutter, Swift, Kotlin, C#, Go, and Ruby. The self-hosted Docker Compose stack runs fourteen coordinated services including Kong API gateway, Supavisor connection pooler, and Logflare analytics. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. Apache 2.0 licensed.

The open-source PaaS with 55,000+ GitHub stars and the largest one-click service catalog in its class — Coolify gives you the Vercel push-to-deploy workflow on a dedicated server you control. Connect a GitHub, GitLab, Bitbucket, or Gitea repository and every push builds and deploys automatically via Nixpacks, a Dockerfile, or Docker Compose, with Traefik or Caddy reverse proxying, automatic Let's Encrypt certificates, and per-branch preview deployments with their own URLs. Databases — PostgreSQL, MySQL, MariaDB, MongoDB, Redis — provision in a few clicks, and a catalog of 280+ one-click service templates covers WordPress, n8n, Grafana, MinIO, Plausible, Ollama, and more. One dashboard manages the entire server, with Docker Swarm available for clustering multiple nodes. Backups go to any S3-compatible storage with one-click restore, and a full API supports CI/CD integration. All configuration lives on your own server, so resources keep running even if you stop using Coolify — no vendor lock-in by design. Running on a dedicated VPS with guaranteed CPU, RAM, and SSD, full root access via SSH and browser console. Apache 2.0 licensed.

Your own Heroku or Vercel on a dedicated server — Dokploy is the open-source PaaS that replaces cloud platform subscriptions with a single dashboard you control. Point it at a Git repository or a Docker image, and it builds and deploys the application using Dockerfiles, Nixpacks, or Heroku/Paketo buildpacks. Traefik handles reverse proxying, routing, load balancing, automatic Let's Encrypt SSL, and HTTP/3. Databases — MySQL, PostgreSQL, MongoDB, MariaDB, libsql, and Redis — provision from the UI with automated backups to any S3-compatible destination. Complex multi-service applications deploy through native Docker Compose support, and multi-node scaling uses Docker Swarm. The web dashboard covers environment variables, volumes, resource limits, real-time CPU/memory/network monitoring, and deployment logs, with a CLI and REST API for automation. Deploy notifications go to Slack, Discord, Telegram, or email. One-click templates install common open-source tools, and a single control plane can manage deployments across multiple remote servers. Because everything is standard Docker, there is no lock-in: Dockerfiles, Compose files, and data volumes work anywhere else Docker runs. The push-to-deploy workflow of a $20/seat cloud PaaS, running on a dedicated VPS with guaranteed CPU, RAM, SSD, and full root access — no per-app, per-environment, or per-seat fees regardless of how many applications you deploy. 26,000+ GitHub stars.

Five mailboxes, five tabs, five passwords: Gofer folds Gmail, Outlook, iCloud, and plain IMAP accounts into one browser tab where every inbox reads as a single, searchable whole. Threads, labels, and drag and drop keep triage fast, and search still finds the receipt from three years ago. Signatures and custom senders shape outgoing mail, scheduled sends wait for Monday morning, and a thread in another language translates in place. The calendar keeps pace with your mail: Google, Outlook, and CalDAV events sync both ways, invitations land in the inbox, and an RSVP or a Meet or Teams link attaches without leaving the message. Contacts follow the same rule through Google, Outlook, and CardDAV sync, so the address book you fix once is right everywhere. One install can serve a household or a small office, with separate users, encrypted credentials, blocked remote images, and passkey or authenticator sign-in for anyone who wants it. Classic, Minimal, and retro Express themes, flexible layouts, and push notifications make the daily inbox feel personal rather than administered. Leaving stays easy too: mailboxes export as mbox, mail moves between accounts, and a whole setup imports into another Gofer. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.

Every email account you own lands in one combined inbox with Cypht, putting Gmail, Outlook, a work Exchange server, and your RSS feeds behind a single login. Combined views do the heavy lifting: one inbox, one unread list, one sent folder, and one flagged list span every connected account, and each account still keeps its own folder tree when you need to work inside a single mailbox. Messages move freely once they are together: search across all accounts at once, then copy or move mail between accounts, flag favorites, and clear out large mailboxes from the same list. Sending identity stays organized through profiles, which pair an incoming account with an outgoing SMTP server and attach a signature and reply-to address, so the right name and footer go out with every message. New accounts connect over IMAP, JMAP, or Exchange Web Services, and provider auto-discovery fills in server settings for major services instead of making you look up ports. Everything is a module set, so LDAP authentication, folder sharing, and integrations like WordPress and GitHub can be switched on or left out entirely. Pages stay small and quick on modest connections, which suits the ISPs, schools, and small teams Cypht was built for. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. LGPL-2.1 licensed.

Mailflow gathers every mailbox you own, the work account, the personal one, and the address stranded at a provider you left years ago, into one unified inbox hosted on your own server. All accounts merge into a single stream sorted by date, then sort themselves into Primary, Newsletters, Social, Notifications, and Other tabs, with a reclassify button for the ones that land wrong. Conversations group into threads, one click unsubscribes from detected newsletters, and full-text search reaches across every connected account at once. Writing mail gets a proper editor with formatting, tables, emoji, attachments, and smart address completion that learns from what you send, while inbox rules and a block list quietly move, archive, star, or trash messages by sender, subject, or content before you ever see them. New mail arrives with real-time toasts and push notifications, the interface installs as an app, speaks eleven languages, and can be reshaped with layouts, themes, and your own CSS. Accounts stay protected with two-factor authentication and single sign-on, contacts sync out over CardDAV, and an optional AI assistant can summarize a thread or draft the reply you are avoiding. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.

Aurora is an open-source AI SRE agent that investigates production incidents on its own, turning each incoming alert into a structured root cause analysis with evidence and a suggested fix. Alerts arrive from PagerDuty, Datadog, Grafana, New Relic, OpsGenie, incident.io, or CloudWatch, and every one triggers a background investigation without waiting for a human to pick it up. The agents choose from more than thirty tools, run cloud and cluster commands inside sandboxed pods, query logs, compare deployments, and search a knowledge base of past incidents for similar failures. An infrastructure dependency graph shows the blast radius across services and providers. When the root cause is found in code, Aurora can draft the remediation as a pull request instead of stopping at a diagnosis. Finished investigations become postmortems with a timeline, impact assessment, and remediation steps, exportable to Confluence, Notion, or SharePoint, and automated actions can open the fix, notify Slack, or update living documents as new evidence lands. Command policies and guardrails bound what the agents may run, and any major language model provider can power the reasoning, cloud-hosted or local. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. Apache-2.0 licensed.

Transforming your Stalwart Mail Server into an all-in-one private communication hub, Bulwark Webmail delivers fast web-based email, collaborative calendars, shared contacts, and cloud files in a single unified interface. Users can manage multiple email accounts from an integrated inbox with conversational message threading, nested organizational tags, scheduled delivery, and instant full-text search across thousands of archived messages. The rich text composer provides markdown shortcuts, inline image embedding, reusable canned response templates, and automated draft synchronization. Team members can coordinate schedules across day, week, month, and agenda calendar views with drag-to-reschedule adjustments, interactive iMIP meeting invitations, and external CalDAV calendar subscriptions. The integrated address book organizes individual contacts into custom groups with full vCard import and export support, while the files module lets users browse server storage, preview incoming attachments, and upload documents directly through the browser. Built-in security safeguards enforce multi-factor authentication, cryptographic S/MIME signatures, client-side encryption at rest, and automated HTML luminance remapping to keep dark emails legible. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL v3 licensed.

A dropped connection should not restart a 20 GB upload: SnowShare is a self-hosted app for sharing files, links, and pastes, with resumable transfers and an expiry date, a view limit, a password, and a QR code available on every share. Put several files into one share and let recipients preview common formats right in the browser, shorten a long address with an optional custom slug, or publish text and code with syntax highlighting. People you send a link to can open it with or without an account, depending on how you configure the instance. Give your users email and password accounts or OAuth sign-in, turn on email verification and CAPTCHA, and set separate storage quotas for anonymous visitors and registered users. Keep uploads on local disk or move them to S3-compatible storage, apply your own branding, and change quotas, sharing rules, SMTP, and storage from the admin panel without restarting. Automate sharing through the REST API with keys created from your profile, drop the generated ShareX uploader files into your capture tool, and receive signed webhook events when shares are created, opened, or deleted. Read the interface in English, French, Spanish, German, Dutch, or Polish, and let expired shares clean themselves up every hour. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. CC0 1.0 licensed.

Some data refuses to sit still in rows and columns. Skytable is an open-source NoSQL database that stores information in spaces and models instead of rigid tables, letting a record carry strings, numbers, nested lists, and other complex types the way your application actually thinks about them. Developers query it with BlueQL, a language that feels familiar to anyone who writes SQL but adds modern collection syntax and mandatory parameterisation that blunts injection attacks before they start. Underneath, the engine keeps working data in memory, drives multithreaded asynchronous network I/O, batches writes, and persists through a custom append-only storage layer with delayed-durability transactions that trade a tunable sliver of risk for a lot of speed. Client drivers connect applications directly, an interactive shell handles administration and exploration, authentication protects the root account and additional users, and clustering work in progress aims at the high-availability deployments larger systems expect. Teams reach for it when a document store feels too shapeless, a relational database feels too stiff, and latency budgets leave no room for either. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.

DataHub maps your entire data ecosystem into a searchable, governed catalog where every table, pipeline, dashboard, and metric is discoverable and traceable from source to consumer. Originally built at LinkedIn to manage metadata at hyperscale and proven to handle 10 million+ assets and billions of relationships in production, the platform is now trusted by 3,000+ organizations including Netflix, Visa, Slack, and Pinterest. The Spring Java backend (GMS) exposes both GraphQL and OpenAPI REST endpoints, while the React frontend delivers an intuitive interface for searching, browsing, and governing data assets. The Python-based ingestion framework provides 80+ production-grade connectors extracting deep metadata from Snowflake, BigQuery, Redshift, Databricks, dbt, Airflow, Spark, Kafka, Looker, Tableau, Power BI, Superset, PostgreSQL, MySQL, Hive, Glue, S3, Iceberg, and Unity Catalog through pull-based scheduled crawls and push-based emission via Python and Java SDKs. Automatic table-level and column-level lineage detection uses SQL parsing with 97-99% accuracy, tracing data flows from ingestion pipelines through warehouses to BI dashboards. Real-time metadata streaming via Kafka keeps the catalog continuously synchronized as schemas evolve and pipelines execute. The governance layer provides business glossary management, tag propagation along lineage graphs, domain-based organization, and fine-grained access control policies. DataHub Actions triggers automated responses to metadata changes, enabling notifications, quality checks, and downstream workflows. Elasticsearch powers full-text search with faceted filtering across entities. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. Apache 2.0 licensed.

Push to git, watch the deploy go live over HTTPS, and roll back in one click, all on servers you own: Levelrail is a self-hosted platform for running apps and databases without Kubernetes. Deploys start from GitHub, GitLab, Bitbucket, or Gitea webhooks and build from a Dockerfile, Compose file, image, or framework preset such as Next.js, Go, React, or Spring Boot, with preview environments per pull request, canary and blue-green rollouts, approvals, and freezes. Embedded Caddy gives every app a domain with HTTPS: self-signed by default, Let's Encrypt with one toggle, a free sslip.io address when no domain exists, or your own uploaded certificate. Provision Postgres, MySQL, MariaDB, MongoDB, Redis, ClickHouse, and more with scheduled backups that are re-downloaded and verified, Postgres point-in-time recovery, and password rotation. Metrics with deploy markers, searchable live logs, alerts, and a public status page need no separate monitoring stack. Roughly 360 one-click templates and a Cmd+K search across apps, databases, and nodes speed up daily work. Extra servers enroll with a one-time token and a reverse-dialed agent that needs no inbound ports. Sign in with passkeys, TOTP, OAuth from 20 providers, or OIDC, then scope access with IAM policies, encrypted secrets, and a tamper-evident audit log. A CLI, HTTP API, and MCP server let scripts and coding agents deploy and roll back. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. Apache-2.0 licensed.

With over 5,100 GitHub stars and eight years of active development since 2016, Shlink has become the definitive self-hosted URL shortener for teams that need unlimited links, full visitor analytics, and complete data ownership without per-link pricing or monthly caps. The PHP backend built on the Mezzio framework with Doctrine ORM serves redirects through any number of custom domains on a single instance, generating unique short codes or accepting custom slugs including multi-segment paths and emoji characters. Every click is tracked with anonymized visitor data including geolocation by country, city, and coordinates, browser and operating system identification, referrer source, and device type classification, all stored in your choice of MySQL, MariaDB, PostgreSQL, Microsoft SQL Server, or SQLite. Dynamic redirect rules route visitors to different destinations based on geolocation, device type, or browser language, enabling targeted campaigns from a single short URL. The REST API exposes every operation with OpenAPI documentation and an interactive sandbox at api-spec.shlink.io, while the CLI provides equivalent functionality for scripting and automation. The official progressive web app at app.shlink.io manages multiple Shlink instances from a single interface with URL creation, tag management, and detailed visit charts. Real-time event integration supports both Mercure and RabbitMQ for webhook-style notifications on new visits. Third-party imports migrate existing short URLs from Bitly and YOURLS with visit history preserved. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.

Kurrier unifies email, calendars, contacts, and file storage in a single web interface that connects to any email provider you already use. The Next.js frontend with Nitro API worker deploys via Docker Compose on PostgreSQL and Redis, delivering a cohesive workspace where IMAP/SMTP mailboxes from Gmail, Outlook, or corporate servers sit alongside transactional providers like AWS SES, SendGrid, Mailgun, and Postmark. Automatic inbox building handles threads, attachments, sent items, and deletion sync through persistent background polling. The CalDAV backend enables full two-way calendar synchronization with iOS, macOS, Android via DAVx5, and Thunderbird, supporting event invitations, RSVP processing through the inbox, timezone-aware scheduling, and contact-aware attendee linking. CardDAV contacts sync bidirectionally across all devices with unified name, avatar, and email resolution. Kurrier Drive provides integrated file storage through WebDAV locally or S3-compatible backends for cloud storage. Multiple identities and domains let you manage several email accounts from different providers in one interface, with fast local search indexing subjects, senders, and content without dependency on external APIs. The API-first architecture exposes clean endpoints for automation and custom integrations. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.

OpenMetadata builds a unified knowledge graph connecting schemas, tables, columns, dashboards, pipelines, ML models, and data products into one searchable catalog accessible at port 8585. The ingestion framework ships 130+ connectors covering Snowflake, BigQuery, Redshift, Databricks, PostgreSQL, MySQL, Kafka, Airflow, dbt, Tableau, Looker, Power BI, Metabase, and Superset, automatically extracting metadata on configurable schedules. Column-level lineage traces data flow across transformations, joins, and aggregations, while built-in data quality testing executes profiling and validation rules as data contracts with automated alerting on failures. Governance features include role-based access control, PII auto-detection, glossary term propagation, and domain-based ownership assignment. The native MCP server and AI SDK expose semantic search, lineage queries, and governance metadata as tools any LLM agent can call, enabling AI systems to discover and reason about enterprise data with full trust context. The architecture requires only PostgreSQL or MySQL plus Elasticsearch, no Kafka, no graph database, and deploys via a single Docker Compose file. Created by the founders of Apache Hadoop, Apache Atlas, and Uber's Databook, the platform has earned over 14,700 GitHub stars and adoption by 3,000+ organizations. Apache 2.0 licensed.

Most link shorteners bloat a simple redirect service with heavy databases and invasive tracking scripts, whereas Chhoto URL delivers a fast, self-hosted URL shortener with custom slugs, QR codes, and privacy-respecting click counts. Paste any destination URL to generate a memorable adjective-name pair, a compact random UID, or your own custom alias in one click. Every shortened link redirects visitors immediately without interstitial splash pages, countdown timers, or tracking cookies. You can attach searchable notes to any entry, update the target URL after creation, and configure automatic link expiration timers down to the minute. Built-in QR code generation lets you preview and share scannable codes directly from the dashboard table. Real-time search filters links across slugs, destination URLs, and notes, while anonymous hit counters track total visits without logging visitor IP addresses. Administrators can run a private instance protected by OIDC single sign-on or Argon2-hashed credentials, or enable public mode so guests can shorten links with enforced expiration limits. Automation scripts and CLI tools can create, inspect, and delete links programmatically using API keys over the JSON API. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.

With over 7,000 GitHub stars and active community maintenance through version 0.26.0 released in June 2026, Homebox fills the gap between inadequate spreadsheets and overcomplicated enterprise asset management by providing a purpose-built inventory system designed specifically for home users, families, and small groups. The Go backend with SQLite storage deploys as a single Docker container consuming under 50MB of RAM at idle, running on hardware as modest as a Raspberry Pi while the responsive web interface adapts seamlessly across desktops, tablets, and smartphones. The entity-based architecture introduced in v0.26 unifies items and locations into a shared structure supporting custom fields, attachments, entity types, and reusable templates for consistent data entry across inventory categories. QR code generation creates printable labels that scan with any smartphone camera to instantly display item details, photos, serial numbers, and associated documents. Warranty tracking records purchase dates, prices, and expiration dates while maintenance scheduling sends reminders for recurring service tasks. Location hierarchies organize items spatially with nested sub-locations, and flexible label tagging enables cross-cutting categorization beyond physical placement. Multi-user support shares collections with family members or roommates with OIDC single sign-on integration for Active Directory, Okta, and other identity providers. CSV import and export handles bulk operations, while the full REST API enables automation and third-party integrations. Collection-level ZIP export packages complete inventories with attachments for backup or migration. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.

Tau delivers a complete self-hosted cloud platform where Git is the control plane and WebAssembly is the runtime. The Go binary deploys as interconnected nodes that form a P2P network using libp2p for automatic service discovery, eliminating Kubernetes entirely. Serverless functions compile to WebAssembly for secure multi-tenant execution with automatic horizontal scaling — write in Go, Rust, AssemblyScript, or C and deploy by pushing to Git. Branch-based environments map Git branches to isolated deployments, so staging and production run identical infrastructure from different refs. Static website hosting serves frontends with global distribution and automatic content-addressed deduplication via IPFS-derived storage. The built-in K/V database provides distributed storage with automatic replication across nodes, while object storage handles file management with content addressing. Pub/Sub messaging enables real-time communication between functions and external services including WebSocket support. Spore Drive automates multi-host deployment and rolling updates from a single command across bare metal or VMs running Ubuntu. The Dream CLI provides a complete local development environment that mirrors production exactly — same services, same routing, same deployment flow. Zero-configuration HTTPS provisions TLS certificates automatically for custom domains. The web console at console.taubyte.com provides visual project management, or use the tau CLI for Git-native workflows. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. BSD-3-Clause licensed.