Marketing campaigns and transactional mail from one open-source platform: Notifuse is a modern, self-hosted alternative to Mailchimp, Brevo, and Klaviyo without per-email or per-contact pricing. Built with Go and React on PostgreSQL, it separates concerns cleanly: a drag-and-drop visual builder composes responsive templates from MJML components with Liquid variables like {{ contact.first_name }} and per-template version history; campaigns add A/B testing across subject lines, content, and send times; and a REST transactional API serves application-triggered mail. Delivery routes through your choice of provider - Amazon SES, Mailgun, Postmark, SendGrid, SparkPost, Mailjet, or plain SMTP - with multi-provider failover. Contacts carry custom fields and a full activity timeline (messages, profile changes, webhook events), and real-time segmentation builds dynamic rules over properties, activity, and subscriptions. Event-driven automations create behavioral sequences, a notification center gives recipients self-service preference management, and an S3-compatible file manager handles images with CDN delivery. Multi-tenant workspaces with isolated databases and custom domains suit agencies. Open and click tracking report engagement in real time.

ToolHive is an open-source MCP server management platform that lets you run, secure, and orchestrate Model Context Protocol servers in isolated containers, giving AI agents structured access to tools like GitHub, databases, and cloud services without exposing host credentials or network. Every server launches inside its own sandboxed container with a minimal permission file, network access filtering, and encrypted secrets management, preventing misbehaving connectors from reaching beyond their defined scope. The built-in registry provides a catalog of vetted servers you can install with one command, while custom images and package-manager references let you onboard proprietary connectors without writing Dockerfiles. Platform teams deploy the Kubernetes operator to declare MCP servers as cluster resources using Custom Resource Definitions, with automated lifecycle management and multi-namespace isolation. The Virtual MCP Server gateway aggregates multiple backends behind a single endpoint, centralizing OIDC authentication, tool filtering, and composite cross-server workflows so clients connect once instead of juggling separate URLs. An MCP Optimizer analyzes tool schemas via semantic search and surfaces only relevant tools per request, cutting token consumption by up to 85%. OpenTelemetry traces and Prometheus metrics deliver full visibility into tool execution, latency, and request audit trails across every managed server. 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.

SOGo adds shared calendars, address books, and a modern webmail interface to your existing Dovecot, Postfix, or Cyrus mail setup, turning familiar infrastructure into a full Exchange competitor. Rather than replacing your IMAP and SMTP servers, SOGo layers collaboration on top of them, becoming the missing link between raw mail delivery and what users actually expect from a workplace communication platform. The ActiveSync implementation synchronizes email, contacts, calendars, and tasks natively with iPhones, Android devices, and Windows without requiring users to manually configure CalDAV endpoints. CalDAV and CardDAV compliance ensures Apple Calendar, Thunderbird (via the official SOGo Connector extension), GNOME Evolution, and Android via DAVx5 all connect without plugins or workarounds. The web interface uses AngularJS Material design with responsive layouts, offering folder management, drag-and-drop calendar scheduling, contact groups, resource booking, and delegation. Shared calendars support free-busy lookups, iMIP event invitations, and per-user ACL permissions for fine-grained access across organizational units. Built on Objective-C with the GNUstep foundation, SOGo delivers exceptional performance: hundreds of concurrent ActiveSync connections from mobile devices alongside webmail and calendar traffic with sub-second response times. With 2,095+ stars and 116 releases, the project has proven its stability in production environments supporting thousands of users. The Docker deployment runs alongside PostgreSQL and memcached.

Stop building internal tools and ship your actual product - Motor Admin exists for exactly that. Point this Ruby/Vue application at a PostgreSQL, MySQL, MariaDB, or SQL Server database and it generates a complete CRUD admin panel from your schema in under a minute - search, filters, create, update, delete, all through a polished UI, with every customization done through in-app settings rather than a DSL or boilerplate code. What elevates it beyond CRUD generators is the business-intelligence half: write SQL queries (with variables) and render results as tables, numbers, line/bar/ pie charts, funnels, or markdown; organize reports into shared dashboards; and attach queries and dashboards directly to resource pages as tabs, so an order record shows its revenue history in place. Operations beyond CRUD are covered by custom actions and a WYSIWYG forms builder that posts to your existing REST or GraphQL APIs - send a refund, trigger an email, whatever your backend exposes. Email alerts deliver scheduled reports, Slack sends personalized report alerts, and intelligence search spans all resources. Governance is included: role-based permissions with row- and column-level control (CanCanCan), an audit log of admin activity, multiple database connections, and configuration sync between staging and production. Mobile-optimized, AGPL-licensed, also available as a Rails engine.

Salesforce's platform model, 100% open-source (Apache 2.0): Corteza is a Go/Vue.js low-code platform developed under a foundation, so there is no open-core bait to grow out of. The heart is Corteza Compose: namespaces contain applications, modules define record structures the way Salesforce objects do, and a drag-and-drop page builder assembles record pages, list pages, dashboards, and charts from configurable blocks. Automation comes from a visual, BPMN-style workflow engine plus JavaScript automation scripts, so cross-application business logic - approval chains, field updates, notifications - is configured rather than programmed. Granular role-based permissions reach down to individual modules, fields, and records, mirroring real organizational hierarchies. Corteza CRM ships as the flagship application built entirely on Compose: leads, accounts, opportunities, campaigns, and cases with a 360-degree customer view, covering most Salesforce standard objects - and because it is just a Compose app, adding or reshaping modules is configuration, not a fork. Everything is reachable over REST APIs, deliberately familiar tooling eases Salesforce admin migration, and a CLI can even generate synthetic records for load-testing what you build.

Document-generation code is the worst kind of code in your backlog - Carbone kills it. Its insight is separating design from data - templates are ordinary office documents (DOCX, ODT, XLSX, PPTX, HTML, even custom XML) built in LibreOffice, Microsoft Office, or Google Docs, with mustache-like markers such as {d.companyName} typed directly into the text. Send a template plus JSON from your existing APIs to the HTTP API, and Carbone returns the finished document - exported as-is or converted to PDF, XLSX, CSV, HTML, PNG, EPUB, and more via its integrated LibreOffice converter (Chromium and OnlyOffice engines are also supported for HTML-fidelity and office-format conversions). The template language goes well beyond substitution: loops over arrays render dynamic table rows, filters and aggregations run inside the document, and built-in formatters handle dates, numbers, currencies, timezones, and locales, with custom JavaScript formatters when needed. One template serves multiple languages through translation markers with auto-maintained translation files. The XML-agnostic engine means anything your document editor can design - pagination, headers, footers, nested tables, charts - survives generation intact, and Carbone guarantees no breaking changes in template syntax. Node.js-based, fast via multi-threaded LibreOffice conversion. The invoices, contracts, and reports your product owes its users become template edits, not sprints.

Fleet-wide container discovery, live log streaming, and Traefik reverse-proxy routing converge into Dockpeek, a lightweight Docker dashboard built for multi-host server environments. System administrators can launch web applications with one click through automatic port binding detection and integrated Traefik label parsing that extracts public routing hostnames directly from container configurations. The platform monitors multi-host environments through encrypted Docker socket proxies, letting operators inspect running containers, query published network ports, and trigger image updates from a unified control panel. Native Docker Swarm integration auto-detects active cluster managers, mapping swarm services and replicated tasks alongside standalone workloads while flagging degraded service replicas. Built-in log inspectors stream stdout and stderr outputs in real time with line-filtering controls to diagnose crashed services without opening remote SSH terminals. Operators can track image registries for newer digest tags, review pending updates across container fleets, and trigger graceful rolling container recreations directly from the dashboard. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.

Unlimited domains, unlimited keywords, daily Google position checks with stored history and trend charts: SerpBear is an open-source search engine rank tracker. Retrieval works through your choice of third-party SERP APIs - ScrapingAnt, ScrapingRobot, SerpApi, SearchApi, HasData - or your own proxy IP pool, and a flexible scrape-strategy system (Basic, Custom, or Smart, set globally or per domain) works around Google's removal of the 100-results-per-page parameter by choosing how many pages to check per keyword. Google Search Console integration adds real visit counts, impressions, and click-through rates per tracked keyword and surfaces top-performing pages and countries; Google Ads integration supplies monthly search volumes and auto-generates keyword ideas from your site's content. Email notifications report position changes daily, weekly, or monthly, a built-in REST API feeds dashboards and reporting tools, and data exports to CSV. Built with Next.js on SQLite, deployed via Docker, installable as a PWA on mobile - with no per-keyword or monthly SaaS fees.

Bugsink has earned over 1,800 GitHub stars as the lightweight self-hosted error tracking platform that replaces Sentry without per-event billing by accepting error reports from any Sentry-compatible SDK across Python, JavaScript, Node.js, Ruby, Java, PHP, Go, and every other language Sentry supports. Simply update the DSN in your existing Sentry configuration and Bugsink captures the same stack traces, local variables, request context, and breadcrumbs that Sentry processes, displayed through a focused interface designed for debugging rather than dashboarding. Automatic issue grouping collapses duplicate error events into single actionable issues based on exception type, message, and stack frame context, turning thousands of raw events into a manageable list. Issue status tracking supports resolved, resolved-in-next-release, and muted states with automatic regression detection when resolved issues recur. Release tracking associates events with deploy versions to correlate error spikes with specific rollouts. Tag-based search filters issues by environment, release, user, browser, operating system, or any custom key-value pair sent by the SDK. Alerting notifies your team through Slack, Discord, Mattermost, and email when new issues appear or resolved issues regress, with per-project webhook configuration and user-level notification preferences. Per-project retention policies with automatic event eviction manage storage growth. A REST API with OpenAPI documentation enables custom integrations and dashboards. Source map support links minified JavaScript to original source. Deploy via Docker with the bugsink/bugsink image. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. PolyForm Shield licensed.

Over 400 technologies and thousands of smart devices from any manufacturer, unified under one roof: openHAB is the vendor-neutral home automation platform with a pluggable binding architecture. Each binding translates a device or service into openHAB's clean abstraction: Things expose Channels, Channels link to Items, and Items feed a rules engine that runs your home. That engine meets you at your skill level: Blockly gives non-programmers drag-and-drop visual logic, JS Scripting (GraalJS with the openhab-js library) is the modern text-based standard, the classic Rules DSL remains supported, and JSR223 opens the door to Python, Ruby, and Groovy. Time- and event-based triggers, scripts, notifications, and voice control compose into automations of any complexity, and users report decade-old rule sets still running rock solid. The Main UI handles configuration, semantic modeling, and now built-in charting - no external Grafana required. Built in Java on Apache Karaf's OSGi runtime and stewarded by the non-profit openHAB Foundation, it requires no cloud to function: everything runs locally, talking directly to your devices. Optional connectors bridge to Alexa, Google Assistant, and HomeKit, with iOS, Android, and web apps for control from anywhere.

Your users belong in your own database - Authorizer, an open-source authentication and authorization server shipping as a single Go binary, keeps them there. It connects to 13+ backends - PostgreSQL, MySQL, SQLite, SQL Server, MariaDB, MongoDB, Cassandra, ScyllaDB, ArangoDB, DynamoDB, Couchbase, YugabyteDB, PlanetScale, and CockroachDB - so identity data lives beside the application it protects instead of in an auth vendor's cloud. The server is fully OAuth 2.0 and OpenID Connect compliant, including authorization code flow with PKCE, a JWKS endpoint, token revocation, and nine JWT signing algorithms. Login options cover email/password, magic links, TOTP multi-factor, SMS OTP via Twilio, and social providers including Google, GitHub, Apple, Microsoft, and Discord. Authorization goes beyond roles: an embedded OpenFGA engine provides Zanzibar-style relationship-based permission checks in process. APIs are exposed over GraphQL, REST, and gRPC, with SDKs for JavaScript, React, Go, and Python, plus themeable built-in login pages and an admin dashboard. Apache 2.0 licensed.

Comment sections at the Washington Post, the Wall Street Journal, and newsrooms across 30 countries run on Coral (also known as Talk) - the platform built by journalists' technologists, started under the Mozilla Foundation and now stewarded by Vox Media as an Apache-2.0 project serving 23 languages. Its founding premise is that online comments are broken and moderation is the fix. Moderators get a full queue system - reported comments, system-held pending comments, and configurable pre-moderation - backed by AI toxicity scoring that warns commenters before posting and holds high-scoring comments for review, Akismet spam detection, banned and suspect word lists, and automatic repeat-offender handling that pre-moderates users whose rejection rate crosses a threshold. Readers get features designed for healthier conversation: journalist badges in threads, muting of annoying voices, notifications, instant new-comment alerts, and timeouts rather than just bans. For publishers the economics are the point - no ads, no trackers, no hidden pixels anywhere in the code, full ownership of audience data, and GDPR compliance beyond requirements. Integration is one embedded script; SSO connects existing registration, and a GraphQL API supports customization and extension.

Yet Another API Development Environment delivers a self-hosted alternative to Postman designed from the ground up for teams that need secure, collaborative API development without sending sensitive credentials through third-party cloud services. The multi-user system manages team members with role-based permissions and supports external authentication through OAuth2 and OIDC providers, while all data persists in an H2 file-based database that survives container and server restarts. REST and WebSocket request testing includes environment variable substitution, request chaining, and Markdown documentation for each endpoint. The JavaScript scripting engine runs request and response scripts for automated testing and data extraction, with cron job scheduling and API-triggered execution for continuous integration workflows. Collections import directly from OpenAPI specifications and Postman exports, while outbound export generates request code in multiple languages and frameworks. The browser extension proxy for Chrome and Firefox routes requests through the user's browser to bypass CORS restrictions when testing localhost and internal APIs, with an alternative server-side proxy for headless environments. Single-file data import and export simplifies backup and migration between instances. The React and Vite frontend ships with dark mode enabled by default. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.

Comp AI turns the months-long slog of SOC 2, ISO 27001, HIPAA, and GDPR certification into a largely automated process by connecting to your existing infrastructure and continuously collecting the evidence auditors actually ask for. Point it at your AWS account, Google Cloud project, GitHub organization, or any of 580+ supported integrations, and autonomous agents pull configuration snapshots, access logs, encryption status, and policy compliance data on a recurring schedule so your compliance posture reflects reality rather than last quarter's manual export. The AI policy engine analyzes your tech stack, team structure, and risk tolerance to generate organization-specific policies for information security, access control, incident response, data retention, and vendor management; no two companies get the same boilerplate. An open-source device agent runs on employee machines checking disk encryption, firewall status, screen lock settings, password length, and antivirus presence around the clock, flagging failures the moment they occur instead of surfacing them during an audit. Built-in penetration testing agents scan your codebase and API endpoints for vulnerabilities like SQL injection and output audit-ready reports. The vendor risk management module scores third-party services and surfaces compliance gaps before they become findings. A public trust center lets prospects verify your compliance status directly, eliminating security questionnaire bottlenecks. 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.

Vigil monitors your entire distributed infrastructure and generates a public status page from a single Rust binary small enough to run on a Raspberry Pi, consuming minimal CPU and memory while providing crash-free reliability. Four distinct monitoring modes cover every topology: poll probes check HTTP, TCP, SSH, and ICMP endpoints for reachability with configurable intervals and thresholds; push probes receive health reports from Vigil Reporter libraries embedded in your application code across Node.js, Python, Golang, Rust, TypeScript, Dart, and C#; local probes delegate monitoring to Vigil Local slave daemons running behind firewalls on separate LANs; and script probes execute custom shell commands for specialized health checks. Each monitored service transitions through healthy, sick, and dead states based on consecutive probe failures, with configurable thresholds controlling state transition sensitivity. When services change state, Vigil dispatches notifications through twelve alert channels including Slack, Email, Twilio SMS, Telegram, Pushover, Gotify, XMPP, Matrix, Zulip, Cisco Webex, and generic webhooks. The generated status page displays service groups organized by category with real-time replica status, system load metrics from reporter probes, and a maintenance announcement system for communicating planned downtime through the Manager HTTP API. Configuration uses a single TOML file defining all probes, services, and notification channels with no database dependency. Docker deployment pulls the official image with volume-mounted configuration. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MPL-2.0 licensed.

Upload files, get a share link, let it expire: PsiTransfer is a self-hosted WeTransfer with no accounts, no logins, and no third-party cloud with size caps and metadata harvesting. The engineering focus is large files over imperfect networks. Uploads use the tus.io resumable protocol, so a dropped connection on a multi-gigabyte video resumes exactly where it stopped once you're back online; downloads support HTTP range headers for the same resilience, and everything streams, so file size is bounded by your disk rather than memory. Files organize into upload buckets with retention you control: expire after a set time (up to weeks) or after a one-time download, with automatic cleanup when links lapse. Recipients need nothing installed - they open the link, preview files in modal views, and grab everything as a zip or tar.gz archive with one click. Buckets can be password-protected (AES-encrypted download lists), and security-through-obscurity is done properly: bucket URLs use hashed UUID tokens and stored filenames are replaced with UUIDs. An optional admin page (enabled by setting an admin password) lists bucket information and storage. The Vue.js frontend ships under 100 KB gzipped and is fully responsive. Honest caveat from the author: no end-to-end payload encryption yet. BSD-licensed, Docker-ready.

Product Hunt's Maker of the Year: Animockup delivers an alternative to expensive motion graphics tools for creating animated product teaser videos entirely in the browser. The FabricJS canvas engine provides a fully interactive editing surface where you import product videos or screenshots, place them inside device mockups ranging from iPhones and MacBooks to browser windows and smartwatches, and customize everything from background gradients to overlay text positioning. Anime.js powers the animation system with configurable start and end transitions, easing curves, and duration controls that produce smooth entrance and exit effects without timeline editors or keyframe knowledge. The built-in FFMPEG.wasm pipeline handles all video processing client-side — no server-side rendering required — exporting finished teasers to WebM, MP4, or GIF at custom framerates and resolutions up to 4K. The crop and reposition tool lets you precisely fit product footage into any device screen regardless of aspect ratio differences. Twenty-plus device frames cover phones, tablets, laptops, desktops, watches, and generic browser windows for maximum versatility. Firebase authentication handles user sessions while the optional Paddle integration manages subscriptions — or remove both for a fully free deployment. Self-hosting requires only a static web server with optional PHP for the payment webhook endpoint. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.

dyrector.io gives teams a visual web interface for deploying and managing containerized applications across Docker, Kubernetes, and Podman environments, replacing repetitive CLI commands and YAML editing with point-and-click configuration. Lightweight Go agents installed on target infrastructure communicate with the central TypeScript platform, enabling deployments to AWS, GCP, Azure, and on-premises servers without requiring infrastructure migration. Unified configuration screens eliminate redundant YAML editing across environments with support for all three container runtimes. Version management lets teams configure OCI-compatible container images once and deploy them as versioned releases with auto-generated changelogs and release notes. Multi-instance deployment enables simultaneous rollouts to multiple nodes with environment-specific configuration overrides, secret management, and instant test environment provisioning from any branch. The fine-grained RBAC system controls user access at project and environment levels, while audit logging tracks every deployment action. Registry integrations support Docker Hub, GitLab, GitHub, Google, and Azure container registries for image sourcing. ChatOps notifications integrate with Slack, Discord, and Microsoft Teams for deployment status alerts. Scheduled releases and workflow support enable automated deployment pipelines triggered by CI events via the REST API with JWT authentication. 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.