GitHub - RunaCapital/awesome-oss-alternatives: Awesome list of open-source startup alternatives to well-known SaaS products 🚀

Awesome open-source alternatives to SaaS

Awesome list of open-source startup alternatives to established SaaS products. Maintained by folks at Runa Capital.

Also checkout our ROSS index: fastest-growing open-source startups, every quarter.

Criteria

Open-source company is added to the list if:

Its product is strongly based on an open-source repo
It has a well-known closed-sourced competitor, solving a similar business problem
It is a private for-profit company, founded in the last 10 years
Its repo has 100+ stars on GitHub

Things change really fast in the startup world, so this list can neither be fully complete, nor 100% up to date.

Don't hesitate to contribute and add new startups. Let's build the most comprehensive list together.

Startup List

All startups in the list are sorted by categories and names in an alphabetical order. If you click on the stars badge, you will get to a product's repo. Have a good search!

Category	Company	Description	Alternative to
API Platform	Hoppscotch	API development ecosystem	Postman
Auth & SSO	Cerbos	Granular access control	Okta, Auth0
Auth & SSO	Keycloak	User authentication and session management framework	Okta, Auth0
Auth & SSO	OPAL (Permit.io)	Authorization adminstration framework (Open Policy)	Okta, Auth0
Auth & SSO	Ory	Identity platform	Okta, Auth0
Auth & SSO	Oso	Authorization building framework	Okta, Auth0
Auth & SSO	Supertokens	User authentication and session management framework	Okta, Auth0
Backend as a service	Appwrite	Backend server with REST APIs to manage core backend needs	Firebase
Backend as a service	Kuzzle	Backend server with REST APIs to manage core backend needs	Firebase
Backend as a service	Nhost	Backend server with GraphQL	Firebase
Backend as a service	Supabase	Backend server with REST APIs to manage core backend needs	Firebase
Business intelligence	Metabase	Business intelligence software	Tableau, Power BI, DataStudio
CMS	Builder	Drag and drop page builder and CMS	Contentfull
CMS	Concrete	CMS for teams	Contentfull
CMS	Directus	Data platform which wraps any database with an intuitive app	Contentfull
CMS	Netlify CMS	Git-based CMS for static site generators	Contentfull
CMS	Plasmic	The headless page builder for singe-page frameworks	Contentfull
CMS	Strapi	Node.js Headless CMS to build customisable APIs	Contentfull
CMS	Sulu	Modern Symfony based CMS	Contentfull
CMS	Tina	Visual editor for React websites	Contentfull
CMS	Webiny	Enterprise serverless CMS	Contentfull
Cloud Storage	Minio	S3 compatible object storage	Amazon S3
Cloud Storage	Storj	Decentralized cloud storage	Amazon S3
Communication	Fonoster	APIs for SMS, voice and video	Twilio
Customer Data Platform	Jitsu	Fully-scriptable data ingestion engine for modern data teams	Segment
Customer Data Platform	Rudderstack	Customer data platform for developers	Segment
Customer Engagement	Chaskiq	Live chat widget	Intercom, Zendesk
Customer Engagement	Chatwoot	Live chat widget	Intercom, Zendesk
Customer Engagement	Papercups	Live chat widget	Intercom, Zendesk
Cybersecurity	CloudQuery	Assess, audit, and evaluate the configurations of your cloud assets.	AWS Config, GCP Cloud Asset Inventory, AWS GuardDuty
Cybersecurity	CrowdSec	Collaborative IPS able to analyze visitor behavior and to provide an adapted response to all kinds of attacks.	GreyNoise
Cybersecurity	Firezone	VPN Server & Firewall for teams	OpenVPN Access Server
Cybersecurity	Gravitl	WireGuard virtual networking platform (VPN)	Tailscale, OpenVPN
Cybersecurity	Nuclei	Vulnerability scanner based on simple YAML based DSL	Tenable Nessus
Design	Modulz	Code-based tool for designing and prototyping	Figma
Design	Penpot	Design & prototyping platform	Figma
E-commerce	Medusa	Headless e-commerce platform	Shopify, Ecwid
E-commerce	Saleor	Headless e-commerce platform	Shopify, Ecwid
E-commerce	Shuup	Headless e-commerce platform	Shopify, Ecwid
E-commerce	Sylius	Headless e-commerce platform	Shopify, Ecwid
E-commerce	Vendure	Headless e-commerce platform	Shopify, Ecwid
E-commerce	Vue Storefront	Frontend for e-commerce platform	Shogun
ELT / ETL	Airbyte	Data integration platform	Fivetran
ELT / ETL	Dagster	Orchestration platform for data assets	Fivetran
ELT / ETL	Orchest	No-code data pipelines builder	Fivetran
ELT / ETL	Prefect	Data orchestration platform for a modern data stack	Fivetran
Email marketing	Keila	Email newsletter tool	Mailchimp, Sendinblue
Enterprise Search	AppBase	Search UI components for React and Vue	Algolia
Enterprise Search	deepset	NLP platform to build enterprise-grade semantic search	AWS Kendra, QnA Maker
Enterprise Search	Jina.ai	Neural search framework for 𝙖𝙣𝙮 kind of data (including images)	Algolia
Enterprise Search	MeiliSearch	Search engine	Algolia
Enterprise Search	Qdrant	Vector similarity search engine with extended filtering support	Algolia
Enterprise Search	SeMI's Weaviate	Real-time vector search engine	Google Vertex AI, Algolia
Enterprise Search	TypeSense	Typo tolerant fuzzy search engine	Algolia
ERP	DoliCloud	Business management suite (ERP and CRM)	Oracle Fusion ERP Cloud,Odoo,Microsoft Dynamics
Feature flag and toggle management	FlagSmith	Feature Flag & Remote Config Service	LaunchDarkly
Feature flag and toggle management	GrowthBook	Feature flags and A/B testing	LaunchDarkly
Feature flag and toggle management	Unleash	Feature flags platform	LaunchDarkly
File Hosting	Filestash	A file manager that let you manage your data anywhere it is located	Dropbox, Google Drive
File Hosting	Nextcloud	A personal cloud which runs on your own server	Dropbox, Google Drive
File Hosting	Owncloud	A personal cloud which runs on your own server	Dropbox, Google Drive
Forum Software	Discourse	A platform for community discussion	Tribe, Circle
Forum Software	Vanilla	A platform for community discussion	Tribe, Circle
Graph database	ArangoDB	Graph database and document store	TigerGraph, Amazon Neptune
Graph database	Memgraph	In-memory graph database	TigerGraph, Amazon Neptune
Graph database	Neo4j	Graph database platform	TigerGraph, Amazon Neptune
Graph database	TerminusDB	Knowledge graph and document store	TigerGraph, Amazon Neptune
Helpdesk Solution	Peppermint	Ticket Management & Helpdesk system	Zendesk
Internal Tools	AppSmith	Low-code platform for internal tools	Retool
Internal Tools	Budibase	Low-code platform for internal tools	Retool
Internal Tools	Lowdefy	YAML-based low-code platform for internal tools	Retool
Internal Tools	Tooljet	Low-code framework for internal tools	Retool
Log Management	Graylog	Log management platform	Splunk
ML Ops	Cortex	Production infrastructure for machine learning	AWS SageMaker
ML Ops	MindsDB	In-database machine learning platform	BigQuery ML
ML Ops	Ploomber	YAML-based pipeline builder for ML models	AWS SageMaker
Messaging	Element	Enterprise communication platform	Slack
Messaging	Mattermost	Enterprise communication platform for developers	Slack
Messaging	Rocket.chat	Enterprise communication platform	Slack
Messaging	Zulip	Team chat	Slack
Metrics store	Cube.js	Headless business intelligence suite	Looker
Metrics store	LightDash	Low-code metrics layer, alternative to Looker	Looker
Metrics store	MLCraft	Low-code metrics layer, alternative to Looker	Looker
Metrics store	MetriQL	Headless business intelligence suite	Looker
No-code database	Baserow	No-code database and Airtable alternative	AirTable
No-code database	NocoDB	No-code database and Airtable alternative	AirTable
No-code database	Rowy	Extendable Airtable-like spreadsheet UI for databases	AirTable
Notetaking	AppFlowy	Open-source alternative to Notion	Notion
Notetaking	Athens Research	Knowledge graph for research and notetaking	Roam Research
Notetaking	Boost Note	Collaborative workspace for developer teams	Notion
Notetaking	Dendron	Knowledge base plugin for VS Code	Roam Research
Notetaking	Joplin	Secure, Cross-platform, Open-Source Markdown Note Taking App	Evernote, Onenote, Roam Research
Notetaking	Logseq	Knowledge base manager	Roam Research
Notetaking	Outline	Wiki and knowledge base	Notion
Observability and monitoring	Grafana	Observability and data visualization platform	DataDog, NewRelic
Observability and monitoring	Sentry	Application monitoring with a focus on error reporting	DataDog, NewRelic
Observability and monitoring	Signoz	Application monitoring and observability platform	DataDog, NewRelic
Observability and monitoring	VictoriaMetrics	Application monitoring and observability platform	DataDog, NewRelic
Observability and monitoring	Netdata	Application monitoring and observability platform	DataDog, NewRelic
Password manager	BitWarden	Password manager for teams and individuals	1Password
Password manager	Padloc	Password manager for teams and individuals	1Password
Password manager	Passbolt	Password manager for teams and individuals	1Password
Platform as a service	Coolify	Self-hostable Heroku alternative	Heroku
Platform as a service	Porter	Kubernetes powered PaaS that runs in your own cloud	Heroku
Platform as a service	Qovery	Kubernetes powered PaaS that runs in your own cloud	Heroku
Platform as a service	Space Cloud	Serverless cloud deployment platform	Heroku
Product Analytics	PostHog	Product analytics platform	Amplitude, MixPanel
Project Management	Focalboard	Alternative to Trello, Notion, and Asana	Trello, Notion, Asana
Project Management	OpenProject	Project management software	Asana, Trello
Reverse ETL	Castled	Data synchronization framework focused on external apps	Hightouch, NewRelic
Reverse ETL	Grouparoo	Data synchronization framework	Hightouch
Robotic Process Automation (RPA)	RoboCorp	Set of tooling that allows to create automation packages	UiPath
Scheduling	Calendso	Scheduling infrastructure, alternative to Calendly	Calendly
Session replay software	OpenReplay	Session replay stack for developers	LogRocket, FullStory
Streaming	Glimesh	Live streaming platform	Twitch
Timeseries database	InfluxDB	Database designed to process time series data	Kdb+
Timeseries database	QuestDB	Database designed to process time series data	Kdb+
Timeseries database	TimescaleDB	Database designed to process time series data	Kdb+
Timeseries database	TDengine	Database designed to process time series data	Kdb+
Video Conferencing	Jitsi	Video conferences platform and SDK	Zoom
Website analytics	GoatCounter	Google Analytics alternative	Google Analytics
Website analytics	Matomo	Google Analytics alternative	Google Analytics
Website analytics	Plausible	Google Analytics alternative	Google Analytics
Website analytics	Umami	Google Analytics alternative	Google Analytics
Workflow automation	N8N	Node-based workflow automation tool for developers	Zapier
Workflow automation	Pipedream	Workflow automation and API integration platform	Zapier, Integromat
Workflow automation	Temporal	Workflows as code platform	Zapier