Open Source Alternative
● 80 listings · updated 2026-11-11

Open-source alternatives to the SaaS you pay for.

Self-hostable tools with public code. Each one lists the paid product it replaces.

80listings
8categories
80with public code
Featured

Blender

Design

3D creation suite for modeling, animation and rendering

vs Maya, Cinema 4DOpen source3danimation
Featured

LibreOffice

Productivity

Free office suite for documents, sheets and slides

vs Microsoft Office, Microsoft 365Open sourceoffice-suitedocuments
Featured

Nextcloud

Storage & files

Self-hosted file sync, sharing and collaboration

vs Dropbox, Google DriveOpen sourcefile-synccollaboration
Featured

Ollama

AI & LLM

Run large language models on your own machine

vs OpenAI API, ChatGPTOpen sourcelocal-llminference
Featured

Penpot

Design

Design and prototyping tool for teams

vs Figma, SketchOpen sourceui-designprototyping
Featured

Supabase

Dev tools

Postgres backend with auth, storage and realtime

vs FirebaseOpen sourcebackendpostgres

AFFiNE

Productivity

Docs, whiteboards and databases in one workspace

vs Notion, MiroOpen sourcenoteswhiteboard

AnythingLLM

AI & LLM

All-in-one app for chatting with your documents

vs ChatGPT, Notion AIOpen sourceragdocuments

Apache Superset

Analytics

Data exploration and dashboards from the Apache project

vs Tableau, Power BIOpen sourcebidashboards

AppFlowy

Productivity

Notes and wiki with local-first data

vs NotionOpen sourcenoteswiki

Appwrite

Dev tools

Backend server for web and mobile apps

vs FirebaseOpen sourcebackendauth

Baserow

Productivity

Online database with a spreadsheet-style interface

vs AirtableOpen sourcedatabaseno-code

BigBlueButton

Communication

Web conferencing built for online teaching

vs Zoom, Microsoft TeamsOpen sourcevideo-conferencingeducation

Cal.com

Productivity

Scheduling software for booking meetings

vs CalendlyOpen sourceschedulingcalendar

Chatwoot

Communication

Customer support inbox for chat, email and social

vs Intercom, ZendeskOpen sourcecustomer-supportlive-chat

ComfyUI

AI & LLM

Node-based interface for image and video generation

vs Midjourney, DALL-EOpen sourceimage-generationdiffusion

Coolify

Dev tools

Self-hostable platform to deploy apps and databases

vs Heroku, VercelOpen sourcepaasdeployment

CryptPad

Productivity

End-to-end encrypted collaborative documents

vs Google Docs, Google SheetsOpen sourceencryptioncollaboration

darktable

Design

Raw photo workflow and editor

vs Adobe LightroomOpen sourcephotographyraw

Docmost

Productivity

Collaborative wiki and documentation

vs Confluence, NotionOpen sourcewikidocumentation

Documenso

Business ops

Document signing you can self-host

vs DocuSign, PandaDocOpen sourceesignaturedocuments

Dokploy

Dev tools

Self-hosted deployment platform on Docker

vs Heroku, VercelOpen sourcepaasdocker

draw.io

Design

Diagramming for flowcharts, UML and network maps

vs Lucidchart, VisioOpen sourcediagramsflowcharts

Element

Communication

Matrix client for chat and calls

vs Slack, DiscordOpen sourcematrixencryption

ERPNext

Business ops

ERP for small and mid-size companies

vs NetSuite, QuickBooksOpen sourceerpaccounting

Excalidraw

Design

Virtual whiteboard with a hand-drawn look

vs Miro, LucidchartOpen sourcewhiteboarddiagrams

File Browser

Storage & files

Web file manager for a folder on your server

vs Dropbox, Google DriveOpen sourcefile-managerweb-ui

Formbricks

Business ops

Surveys and in-product feedback

vs Typeform, SurveyMonkeyOpen sourcesurveysfeedback

GIMP

Design

Image editor for photo retouching and compositing

vs Adobe PhotoshopOpen sourceimage-editingraster

Gitea

Dev tools

Lightweight self-hosted Git service

vs GitHub, BitbucketOpen sourcegitself-hosted

GitLab Community Edition

Dev tools

Self-hosted DevOps platform, free edition

vs GitHub, BitbucketOpen sourcegitci-cd

GPT4All

AI & LLM

Local chat app for open language models

vs ChatGPTOpen sourcedesktoplocal-llm

Grafana

Dev tools

Dashboards and alerting for metrics, logs and traces

vs Datadog, New RelicOpen sourceobservabilitydashboards

Hoppscotch

Dev tools

Open source API request builder

vs Postman, InsomniaOpen sourceapitesting

Immich

Storage & files

Self-hosted photo and video backup

vs Google Photos, iCloud PhotosOpen sourcephotosbackup

Inkscape

Design

Vector graphics editor

vs Adobe Illustrator, CorelDRAWOpen sourcevectorsvg

Jan

AI & LLM

Offline ChatGPT-style desktop app

vs ChatGPTOpen sourcedesktoplocal-llm

Jitsi Meet

Communication

Video meetings you can host without accounts

vs Zoom, Google MeetOpen sourcevideo-conferencingwebrtc

Joplin

Productivity

Note-taking app with sync and end-to-end encryption

vs EvernoteOpen sourcenotesmarkdown

Kdenlive

Design

Multi-track video editor

vs Adobe Premiere Pro, Final Cut ProOpen sourcevideo-editingtimeline

Keycloak

Dev tools

Identity and access management server

vs Auth0, OktaOpen sourceauthsso

Krita

Design

Digital painting and illustration program

vs Adobe Photoshop, ProcreateOpen sourcepaintingillustration

Lago

Business ops

Usage-based billing and metering

vs Stripe Billing, ChargebeeOpen sourcebillingmetering

Langfuse

AI & LLM

Tracing, evaluation and prompt management for LLM apps

vs LangSmith, HeliconeOpen sourceobservabilitytracing

LibreChat

AI & LLM

ChatGPT-style interface for many model providers

vs ChatGPT, Claude.aiOpen sourcechat-uimulti-model

Lightdash

Analytics

BI layer built on top of dbt projects

vs Looker, TableauOpen sourcebidbt

Listmonk

Communication

Newsletter and mailing list manager

vs Mailchimp, SubstackOpen sourcenewsletteremail

llama.cpp

AI & LLM

C/C++ inference for LLMs on ordinary hardware

vs OpenAI APIOpen sourceinferencequantization

LocalAI

AI & LLM

Drop-in local replacement for the OpenAI API

vs OpenAI APIOpen sourceinferenceopenai-compatible

Logseq

Productivity

Outliner for linked notes, stored as plain files

vs Roam Research, NotionOpen sourcenotesoutliner

Mastodon

Communication

Federated social network

vs X, TwitterOpen sourcesocial-networkactivitypub

Matomo

Analytics

Full-featured web analytics you can own

vs Google Analytics, Adobe AnalyticsOpen sourceweb-analyticsphp

Mattermost

Communication

Team chat you can host yourself

vs Slack, Microsoft TeamsOpen sourceteam-chatself-hosted

Mautic

Communication

Marketing automation and email campaigns

vs HubSpot, MailchimpOpen sourcemarketing-automationemail

Meilisearch

Dev tools

Fast search engine for apps and sites

vs AlgoliaOpen sourcesearchrust

Metabase

Analytics

Business intelligence for questions and dashboards

vs Tableau, LookerOpen sourcebidashboards

MinIO

Storage & files

S3-compatible object storage

vs Amazon S3Open sourceobject-storages3

Odoo

Business ops

Modular business apps for sales, accounting and inventory

vs SAP, NetSuiteOpen sourceerpcrm

ONLYOFFICE

Productivity

Online document editors you can host

vs Google Docs, Microsoft 365Open sourceoffice-suitecollaboration

OpenProject

Business ops

Project management for classic and agile teams

vs Jira, Microsoft ProjectOpen sourceproject-managementgantt

ownCloud

Storage & files

File sync and share platform

vs Dropbox, BoxOpen sourcefile-syncsharing

PhotoPrism

Storage & files

AI-assisted photo management you host

vs Google PhotosOpen sourcephotosself-hosted

Plane

Productivity

Issue tracking and project planning

vs Jira, LinearOpen sourceproject-managementissues

Plausible Analytics

Analytics

Light, cookie-free web analytics

vs Google AnalyticsOpen sourceweb-analyticsprivacy

PocketBase

Dev tools

Backend in a single Go file

vs Firebase, SupabaseOpen sourcebackendsqlite

PostHog

Analytics

Product analytics, session replay and feature flags

vs Mixpanel, AmplitudeOpen sourceproduct-analyticssession-replay

Qdrant

AI & LLM

Vector database for similarity search

vs PineconeOpen sourcevector-databaserust

Redash

Analytics

Query editor and dashboards for SQL data sources

vs Tableau, LookerOpen sourcesqldashboards

restic

Storage & files

Fast, encrypted backup program

vs Backblaze Personal Backup, CarboniteOpen sourcebackupencryption

Rocket.Chat

Communication

Customizable team chat and omnichannel support

vs Slack, IntercomOpen sourceteam-chatomnichannel

Seafile

Storage & files

File syncing with a focus on speed and reliability

vs Dropbox, Google DriveOpen sourcefile-syncencryption

SigNoz

Dev tools

Open source observability on OpenTelemetry

vs Datadog, New RelicOpen sourceobservabilityopentelemetry

SuiteCRM

Business ops

Long-running open source CRM

vs Salesforce, HubSpotOpen sourcecrmsales

Syncthing

Storage & files

Peer-to-peer file synchronization

vs Dropbox, Resilio SyncOpen sourcefile-syncpeer-to-peer

Twenty

Business ops

Modern open source CRM

vs Salesforce, HubSpotOpen sourcecrmsales

Umami

Analytics

Simple, privacy-focused website analytics

vs Google Analytics, Fathom AnalyticsOpen sourceweb-analyticsprivacy

Uptime Kuma

Dev tools

Self-hosted uptime monitoring

vs UptimeRobot, PingdomOpen sourcemonitoringuptime

Vikunja

Productivity

Self-hosted to-do and project app

vs Todoist, TrelloOpen sourcetaskskanban

vLLM

AI & LLM

High-throughput LLM serving engine

vs OpenAI APIOpen sourceinferenceserving

Zulip

Communication

Team chat organized by topic threads

vs SlackOpen sourceteam-chatthreads

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