AC
hard Open source Enterprise Content Management platform for document storage, versioning, metadata, records management, and workflow. A self-hostable alternative to SharePoint for organisations that need serious document governance without Microsoft licensing
AP
medium Open-source backend platform providing authentication, databases, storage, serverless functions, messaging, and realtime APIs. A self-hostable Firebase alternative
BC
medium GPL-2.0 Drupal 7 fork for small to medium sites. Keeps Drupal's content flexibility while reducing infrastructure complexity — no composer-first workflow, built-in layouts, and a gentler upgrade path
BA
medium Self-hosted no-code database and app builder. MIT-licensed with no row limits, real-time collaboration, built-in automations, and seven view types including Kanban and Calendar
BO
easy Free, self-hosted wiki with a Books/Chapters/Pages hierarchy, built-in diagrams, SAML/OIDC auth, and role-based permissions. Runs on PHP and MySQL
BU
medium Battle-tested open source bug tracker originally built by Mozilla in 1998. Advanced search, custom fields, email notifications, time tracking, and a flexible workflow — one of the most capable self-hosted issue trackers still in active use
CA
medium Open-source Calendly alternative with unlimited event types on the free tier, Stripe payments, routing forms, and a full API. Self-hosting requires PostgreSQL and Redis
CH
medium Open-source customer support platform with a shared inbox across email, live chat, WhatsApp, Facebook, Twitter, and more. Self-hosted alternative to Intercom and Zendesk with a clean agent UI
CH
medium Self-hosted employee onboarding platform with automated sequences, Slack bot integration, and account provisioning. Build structured new-hire journeys with tasks, resources, and timed messages without a HR software subscription
CO
medium Open-source alternative to Teachable and Thinkific. Self-host your own course selling platform with digital downloads, communities, and email — no per-transaction fees
DI
medium Open source customer messaging automation platform. Build event-triggered journeys for email, SMS, push, and webhooks — a self-hostable alternative to Braze, Customer.io, and Iterable without the per-MAU pricing
EL
easy Open source electronic lab notebook for research teams. Record experiments, manage a sample and protocol database, timestamp results for legal proof-of-existence, and collaborate with colleagues without paying per-seat fees
FO
easy Open-source survey platform with in-product user targeting and link-based forms. Self-host to collect NPS, CSAT, and custom feedback with full data ownership
FH
medium Open source customer support platform built on the Frappe framework. Ticket management, SLA tracking, automation rules, a customer portal, and a clean agent interface — all self-hostable and free for teams that do not want to pay Zendesk's per-agent fees
FR
easy Self-hosted shared inbox and help desk built with PHP/Laravel. A close open source replica of Help Scout — conversation threads, collision detection, saved replies, and a module system — without the per-agent subscription cost
IN
medium Self-hosted invoicing, quotes, expenses, and payment collection for freelancers and small businesses. Unlimited clients and users when self-hosted. 50+ payment gateways, time tracking, and a client portal included
IT
medium Open source IT documentation, ticketing, invoicing, and accounting platform built specifically for managed service providers and small IT teams
LI
medium Self-hosted customer support desk with live chat, email, SLA management, and SSO built in. Free, open source, ships as a single Go binary
LI
medium Self-hosted newsletter and mailing list manager. Single Go binary, PostgreSQL, no per-subscriber fees, SMTP-agnostic, with a transactional email API for app-triggered messages
MA
medium Self-hosted email suite bundling Postfix, Dovecot, Rspamd, SOGo, and ClamAV in a single Docker Compose stack. Full web UI for domain and mailbox management
MA
easy Lightweight PHP bug tracker with email integration, custom fields, time tracking, and a plugin system. One of the longest-standing open source issue trackers — simple to deploy and actively maintained after 20+ years
MA
medium The most feature-complete self-hosted analytics platform. GDPR-approved by EU authorities for cookieless operation. Free core, premium plugins sold separately
MA
hard Open-source marketing automation platform for email campaigns, drip sequences, lead scoring, and contact segmentation. Self-host your marketing stack with no per-contact fees
ME
easy Open-source business intelligence tool for building dashboards and running queries without a data analyst on call. Visual query builder for non-technical users, full SQL editor for those who want it
NE
★
medium Self-hosted productivity suite covering file sync, calendar, contacts, video calls, and collaborative document editing. Free community edition for self-hosters; enterprise subscriptions for organisations needing support SLAs
NO
easy Open-source Airtable alternative that turns any SQL database into a spreadsheet-style interface. Grid, kanban, gallery, calendar, and form views with role-based access and REST API — no data migration needed
OD
easy Self-hosted document server for editing and collaborating on docs, spreadsheets, and presentations in the browser. Connects to Nextcloud and 40+ other platforms
OT
hard Open source web-based ticketing and ITSM platform. Community successor to OTRS after it went commercial — handles email-based support queues, SLAs, escalations, and ITIL-aligned service management for help desks and IT teams
PA
medium Open source DocSend alternative for sharing documents via trackable links. Share pitch decks and proposals with page-by-page analytics, custom domains, password protection, and email capture — without paying DocSend's per-document fees
PA
medium Open-source team password manager built on OpenPGP end-to-end encryption. Share credentials with granular permissions, audit every access, and keep private keys on user devices. Community edition is free with unlimited users
PL
medium Open-source project management with issues, cycles, modules, and analytics. Self-hosted Jira alternative used by Sony, Accenture, and government agencies
PS
medium Self-hosted team password manager with multi-layer client-side encryption. Enterprise edition with SSO, LDAP, and audit logging is free up to 10 users. Business tier starts at $3/user/month
RT
hard Battle-tested open-source ticketing system with 20+ years of production use. Email-driven queues, custom workflows, SLA management, asset tracking, and 400+ free extensions. Written in Perl
RI
medium Flexible Python-based issue tracker with web, email, REST, and command-line interfaces. Configurable data model lets you shape it into a bug tracker, help desk, or project management tool without modifying core code
RU
easy Open-source remote desktop software with a self-hosted relay server. Route all traffic through your own infrastructure. Replaces TeamViewer and AnyDesk. Client runs on all major platforms
SP
easy Locally hosted web application for PDF manipulation with 50+ operations. Split, merge, compress, OCR, convert, watermark, and sign PDFs with nothing sent to external servers
SU
medium Open-source Firebase alternative built on Postgres. Provides a database, authentication, auto-generated REST and GraphQL APIs, file storage, edge functions, and realtime subscriptions
TE
easy Self-hosted team password manager with folder-based organisation, role and group access controls, and an audit trail. Built for teams that need shared credentials without paying per-user fees for a cloud password manager
TW
medium Open-source CRM with a modern interface and fully customisable data model. Define custom objects, fields, and relationships, then manage contacts, deals, and pipelines on your own infrastructure
VI
easy Self-hosted task and project manager with list, Kanban, Gantt, and table views. Single Go binary, CalDAV sync, and import from Todoist, Trello, and Microsoft To-Do
WE
easy Open-source kanban board for visual task and project management. Boards, lists, cards, swimlanes, and checklists with a privacy-first, self-hosted approach
WI
medium Self-hosted wiki on Node.js with Git sync, flexible page structure, and deep authentication support. Multiple editors, 50+ integrations, and no forced content hierarchy
WO
easy The CMS powering 43% of the web. Self-hosted, GPL-licensed, with 60,000+ plugins, WooCommerce, and no platform fee. Requires active maintenance to stay secure
ZA
medium Open-source helpdesk and customer support ticketing system with multi-channel inbox, SLA management, and knowledge base. Self-host your support operation without per-agent subscription fees