OpenAltFinder

Open Source Software Alternatives

Browse free, self-hostable alternatives to popular proprietary tools.

Piwigo

Piwigo

Open-source photo gallery and management software for individuals and teams.

Alternative to:
Google PhotosGoogle Photos
Nextcloud

Nextcloud

The most popular self-hosted cloud platform for file storage, collaboration, and communication.

Alternative to:
Google DriveGoogle Drive
Recordly

Recordly

Recordly is an open-source screen recorder and editor with auto-zoom, webcam overlays, smooth cursor animations, and one-click shareable video hosting for product teams.

Alternative to:
Screen StudioScreen Studio
LibreOffice

LibreOffice

A powerful free and open source office suite with word processing, spreadsheets, presentations, and more.

Alternative to:
Microsoft 365Microsoft 365
Ladybird

Ladybird

A truly independent web browser built from scratch, with no Chromium, WebKit, or Gecko code.

Alternative to:
Google ChromeGoogle Chrome
Linkwarden

Linkwarden

Linkwarden is an open-source, self-hostable bookmark manager for collecting, reading, annotating, and preserving web content.

Alternative to:
RaindropRaindrop
Healthchecks

Healthchecks

Open-source cron job and background task monitoring service, written in Python & Django

Alternative to:
PingdomPingdom
Headscale

Headscale

Headscale is an open-source, self-hosted implementation of the Tailscale control server. Build your own private WireGuard mesh VPN without a vendor lock-in.

Alternative to:
ExpressVPNExpressVPN
Haven

Haven

Self-hostable private blogging

Alternative to:
WordPressWordPress
Lychee

Lychee

Self-hosted photo and video gallery for uploading, organizing, and sharing your library.

Alternative to:
Google PhotosGoogle Photos
Lunalytics

Lunalytics

Lunalytics is an open-source, self-hosted monitoring tool built with Node.js and React that supports HTTP(S), TCP, ping, Docker, and more. It offers customizable dashboards, status pages, incident management, multi-user access control, and integrations with popular notification services, making it a modern, developer-friendly solution for monitoring uptime and system health.

Alternative to:
UptimeRobotUptimeRobot
Jitsi Meet

Jitsi Meet

Jitsi Meet is a free, secure, open-source video conferencing platform you can use in the browser or self-host. No account is required to join, share, or record any meeting at all.

Alternative to:
Google MeetGoogle Meet
Grist

Grist

Open-source spreadsheet-database hybrid with flexible relational data modeling.

Alternative to:
Google SheetsGoogle Sheets
LimeSurvey

LimeSurvey

Powerful open-source online survey platform used by millions worldwide.

Alternative to:
Google FormsGoogle Forms
Insomnia

Insomnia

The open-source, cross-platform API client for GraphQL, REST, WebSockets, SSE and gRPC. With Cloud, Local and Git storage.

Alternative to:
PostmanPostman
Listmonk

Listmonk

High performance, self-hosted, newsletter and mailing list manager with a modern dashboard. Single binary app.

Alternative to:
MailchimpMailchimp
Kaneo

Kaneo

Open source project management with kanban boards, issue tracking, time tracking, and a self-hosted single-container install.

Alternative to:
JiraJira
Journiv

Journiv

Self-hosted private journaling app with end-to-end encryption and a clean interface.

Alternative to:
Day OneDay One
Linkding

Linkding

Minimal, fast, self-hosted bookmark manager with tagging, full-text search, and a clean web UI designed for easy Docker deployment.

Alternative to:
PinboardPinboard
LinkAce

LinkAce

Self-hosted archive and bookmark manager built with Laravel, featuring automatic archiving, monitoring for dead links, and list organization.

Alternative to:
PinboardPinboard
Krayin CRM

Krayin CRM

A free and open-source Laravel CRM for SMEs and enterprises with full customer lifecycle management.

Alternative to:
HubSpotHubSpot
KillerPDF

KillerPDF

KillerPDF is a lightweight, fully portable PDF editor for Windows. Edit, merge, annotate, and sign PDFs locally with no subscription, accounts, or hidden telemetry anywhere on your computer.

Alternative to:
Adobe AcrobatAdobe Acrobat
Karakeep

Karakeep

Self-hostable bookmark-everything app with AI-based automatic tagging, full-text search, and support for links, notes, and images.

Alternative to:
PocketPocket
Home Assistant

Home Assistant

Open-source home automation platform that puts local control and privacy first — integrate thousands of smart home devices.

Journal

Journal

Journal is a simple self-hosted journal and blog API written in Go, using SQLite for storage. Build custom clients, capture daily entries, and own your writing on your own server.

Alternative to:
Day OneDay One
NOMAD

NOMAD

Self-hosted, real-time collaborative travel planner with itineraries, maps, budgets, and packing lists.

Alternative to:
WanderlogWanderlog
Monica

Monica

Personal CRM. Remember everything about your friends, family and business relationships.

Alternative to:
ClayClay
Plausible

Plausible

Privacy-first, open-source web analytics with a cookieless script under 1 KB and EU hosting — a simpler Google Analytics alternative.

Alternative to:
Google AnalyticsGoogle Analytics
OpenPanel

OpenPanel

Openpanel is an open-source web and product analytics platform that combines the power of Mixpanel with the ease of Plausible and one of the best Google Analytics replacements.

Alternative to:
MixpanelMixpanel
Prisme Analytics

Prisme Analytics

High-perfomance, self-hosted and privacy-focused web analytics service.

Alternative to:
Google AnalyticsGoogle Analytics
Mattermost

Mattermost

Mattermost is an open source platform for secure collaboration across the entire software development lifecycle..

Alternative to:
DiscordDiscord
OpenKnowledge

OpenKnowledge

AI-native, local-first markdown editor and LLM wiki with built-in integrations for Claude, Codex, and other agents.

Alternative to:
NotionNotion
AltTab

AltTab

Free, open-source macOS window switcher with Windows-style Alt-Tab and live previews of every window.

Alternative to:
ContextsContexts
Kestra

Kestra

Event-driven workflow orchestration platform with a YAML-based pipeline DSL, 500+ plugins, and a built-in UI editor.

Alternative to:
ZapierZapier
Pangolin

Pangolin

Self-hosted identity-aware reverse proxy that securely exposes private services via encrypted tunnels without opening inbound ports.

Alternative to:
CloudflareCloudflare
Medusa

Medusa

The world's most flexible commerce platform.

Alternative to:
ShopifyShopify
Olares

Olares

Olares is an open-source personal cloud OS to help you reclaim your data. Self-host apps, files, and AI services right on your own hardware with ease.

Alternative to:
Microsoft AzureMicrosoft Azure
Paperless-ngx

Paperless-ngx

Self-hosted document management system with OCR, full-text search, and automatic tagging for your paper documents.

Alternative to:
Google DriveGoogle Drive
Open Web Analytics

Open Web Analytics

Self-hosted web analytics platform for tracking website traffic without compromising user privacy.

Alternative to:
Google AnalyticsGoogle Analytics
Owncast

Owncast

Self-hosted live video streaming server with built-in chat and Fediverse integration.

Alternative to:
YouTubeYouTube
Twenty

Twenty

An open-source, code-first CRM you can customize, version, and self-host — an alternative to Salesforce and HubSpot.

Alternative to:
SalesforceSalesforce
OhMyForm

OhMyForm

Open-source form builder for creating beautiful, mobile-friendly forms and surveys.

Alternative to:
Google FormsGoogle Forms
OpenCode

OpenCode

Open-source AI coding agent with a terminal UI, desktop and web apps, bring-your-own models, agents, plugins, and MCP support.

Alternative to:
Claude CodeClaude Code
Scrob

Scrob

Self-hosted media tracker that syncs your Jellyfin, Plex, or Emby libraries, tracks watch history, ratings, and lists — your own private Letterboxd + Trakt.

Alternative to:
LetterboxdLetterboxd
Mindustry

Mindustry

Open source automation tower defense RTS — build factories, mine resources, and defend your core against waves of enemies.

Alternative to:
FactorioFactorio
Mautic

Mautic

Open-source marketing automation platform with email campaigns, lead management, and multi-channel marketing.

Alternative to:
HubSpotHubSpot
Pi-hole

Pi-hole

Network-wide DNS-based ad blocking that protects all devices on your network, including Smart TVs and IoT devices.

Alternative to:
Pi-hole
Penpot

Penpot

Open-source design and prototyping platform with native design tokens, real CSS layouts and self-hosting — a strong Figma alternative.

Alternative to:
FigmaFigma
Navidrome

Navidrome

Modern, lightweight self-hosted music server compatible with Subsonic/Airsonic clients — stream your music everywhere.

Alternative to:
SpotifySpotify
NoteDiscovery

NoteDiscovery

A self-hosted knowledge base for note-taking with markdown support, Zettelkasten methodology, and Docker deployment.

Alternative to:
NotionNotion
Mumble

Mumble

Low-latency, open-source voice chat built for gaming — self-host your own server with no subscription required.

Alternative to:
DiscordDiscord
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