Open-source startups

OS

Open Source Startups

The home of open-source-first commercial startups.

CL

Cal.com

Open-source scheduling infrastructure.

PH

PostHog

The single platform to analyze, test, observe, and deploy.

PL

Plausible Analytics

Privacy-first Google Analytics alternative.

N8

n8n

Workflow automation for technical people.

AW

Appwrite

Open-source backend as a service.

SR

Strapi

The leading open-source headless CMS.

AS

Astral

Python tooling, redesigned for speed.

PD

Pydantic

The Python data validation library, used by everyone.

DO

Documenso

The open-source DocuSign alternative.

WV

Weaviate

Open-source vector database.

ZD

Zed

The editor for what's next.

IF

Infisical

The open-source secret manager.

TR

Trigger.dev

The open-source background jobs framework.

PO

Polar

Open-source funding & monetization.

GH

Ghost

Independent technology for modern publishing.

MB

Metabase

The easiest way to let your team explore your data.

CU

Cube

The semantic layer for the AI-era of data.

SZ

SigNoz

Open-source APM, logs, traces, metrics.

LF

Langfuse

Open-source LLM engineering platform.

YB

Yugabyte

The distributed SQL database for cloud-native apps.

AB

Airbyte

Open-source data movement platform.

TD

tldraw

Build whiteboards into your product.

UK

Unkey

Open-source API authentication and authorization.

MD

Medusa

Open-source headless commerce platform.

TC

TinaCMS

The open-source headless CMS for the Jamstack.

BR

Baserow

Open-source no-code database.

NC

NocoDB

The open-source Airtable alternative.

DI

Directus

The instant headless CMS + data platform.

AS

Appsmith

Open-source platform to build admin panels, dashboards.

SR

SurrealDB

The ultimate multi-model database

ED

EdgeDB

A next-generation relational database

LC

LanceDB

Multimodal vector database for AI

MI

MinIO

High-performance S3-compatible object storage

RW

RisingWave

Streaming SQL for real-time analytics

OR

Ory

Cloud native identity and access management

ST

SuperTokens

Open source authentication that is 10x easier

KS

Keystatic

Git-based CMS for your code editor and GitHub

UM

Umami

Simple, fast, privacy-focused web analytics

OR

OpenReplay

Open source session replay and debugging suite

HD

HyperDX

Open source observability platform

OP

OpenPanel

Open source analytics for product and marketing teams

LM

Listmonk

Self-hosted newsletter and mailing list manager

DF

Dittofeed

Open source customer engagement platform

MM

Mattermost

Open source Slack alternative for developers

ZP

Zulip

Organized team chat that does not interrupt you

CF

Coolify

Self-host Heroku and Netlify on your own server

PT

Portainer

Container management made simple

TF

Traefik

The cloud-native application proxy

GT

Gitea

Painless self-hosted all-in-one software development

GD

Garden

Dev environments and CI/CD for Kubernetes teams

DP

DevPod

Open source dev containers on any infrastructure

GB

GrowthBook

Open source feature flagging and A/B testing

FS

Flagsmith

Feature flags and remote config for any platform

UL

Unleash

The enterprise open source feature management solution

SL

Saleor

Open source GraphQL-first e-commerce platform

VD

Vendure

A headless GraphQL e-commerce framework

NU

Nuclei

Fast and customizable vulnerability scanner

TR

Trivy

All-in-one open source security scanner

CD

Caido

A lightweight web security auditing toolkit

BB

Bytebase

Database DevOps and CI/CD for teams

OW

Open WebUI

ChatGPT-style UI for any LLM

LC

LobeChat

Modern open source ChatGPT UI framework

LL

LiteLLM

Call 100+ LLMs with one interface

OL

OpenLIT

Open source LLM observability and evaluation

OK

Opik

Open source LLM evaluation and tracing

DE

DeepEval

The open source LLM evaluation framework

FW

Flowise

Drag-and-drop UI to build LLM flows

LF

Langflow

Visual framework for building multi-agent AI apps

BR

Bruno

Open source IDE for exploring APIs

HA

Hasura

Instant GraphQL and REST APIs on your data

EX

Excalidraw

Virtual whiteboard for sketching hand-drawn diagrams

AF

AppFlowy

Open source Notion alternative

OT

Outline

Fast, collaborative, wiki-style knowledge base

LG

Logseq

Networked notes and knowledge graph

NN

Notesnook

End-to-end encrypted notes app

ME

Memos

Lightweight, self-hosted memo hub

GT

GlitchTip

Open source error tracking

OO

OpenObserve

Open source observability with 140x lower storage costs

AB

Actual Budget

Local-first personal budgeting app

OB

OpenBB

Open source investment research terminal

IM

Immich

Self-hosted Google Photos replacement

PP

PhotoPrism

AI-powered photo manager with private cloud

MS

Mathesar

Database UI as intuitive as a spreadsheet

OM

OpenMetadata

Open standard for metadata and data discovery

SP

Steampipe

SQL for cloud APIs and infrastructure

MO

Monica

Personal CRM to remember your relationships

RL

Rallly

Open source scheduling and meeting polls

HU

Huly

All-in-one project management platform

GR

Grist

Modern relational spreadsheet with database power

FZ

Firezone

Open source WireGuard-based VPN and access gateway

SA

SuperAgent

Open source AI agent platform

PS

Postal

Full-featured open source mail delivery server

SW

Stalwart

Secure and modern open source mail server

MT

Mautic

Open source marketing automation platform

DM

Docmost

Open source Confluence and Notion alternative

GF

Grafana

The open observability platform