Discover Open Source Alternatives to Popular Software

A curated collection of the best open source alternatives to everyday SaaS products. Save money with reliable tools hand-picked for you.

772 new tools added

Wealthfolio

Local-first desktop portfolio tracker for investors who want net worth, returns and spending held on their own device.

Alternative to:

Monarch Money

Secure desktop investment tracker for private wealth management

Stars
8,814
Forks
681
Last commit
5 days ago

Fizzy

Kanban tracking tool for issues and ideas from 37signals, released as source you can host and modify yourself.

Alternative to:

Jira

Modern kanban that's fast, fun, and refreshingly simple

Stars
8,181

KeystoneJS

Headless CMS and Node.js app framework that turns a schema you describe into a GraphQL API and admin UI.

Alternative to:

Contentful

Flexible, scalable Node.js CMS and app framework

Stars
9,970

Krita

Free digital painting application for artists carrying a piece from first sketch through to finished professional work.

Alternative to:

Adobe Photoshop

Professional digital painting made accessible to everyone

Stars
10,323

Databend

Rust data warehouse combining analytics, vector search and full-text search for enterprise teams running agents on their own data.

Alternative to:

Amazon Redshift

Cloud-native data warehouse for lightning-fast analytics

Stars

SolidTime

Time tracking for freelancers and agencies, covering projects, clients, billable rates and multiple organizations under one account.

Alternative to:

Toggl Track

Effortless time tracking for open source projects

Stars
8,903

Tyk

Open source API gateway supporting REST, GraphQL, gRPC and TCP, with authentication, rate limiting and analytics included.

Alternative to:

Amazon API Gateway

Universal API management for REST, GraphQL, gRPC & async

Stars
10,817

Steel

Open source browser API that runs and manages Chrome sessions for AI agents and web automation tools.

Alternative to:

Bright Data

Cloud browser sessions for AI agents and web automation

Stars
7,601

Hanko

Authentication and user management server with passkeys, passwords, MFA and SAML SSO, built to avoid vendor lock-in.

Alternative to:

Auth0

Passkeys, SSO, and MFA without vendor lock-in

Stars
9,019

Mage

Self-hosted environment for building data pipelines locally in Python, SQL or R through a notebook-style interface.

Alternative to:

Fivetran

Magical data pipeline tool for seamless transformations

Stars
8,819

Expensify

The React Native codebase behind the New Expensify app, shipping to web, iOS and Android from one repository.

Alternative to:

Brex

Simplify expense management for businesses of all sizes

Stars
5,020

AnyType

Local-first, end-to-end encrypted knowledge workspace for macOS, Windows and Linux where you define your own data model.

Alternative to:

Notion

Private workspace for notes, tasks, and databases

Stars
8,761

NHost

Open source Firebase alternative built on PostgreSQL, Hasura GraphQL, auth, storage and serverless functions for full-stack teams.

Alternative to:

AWS Amplify

Serverless backend platform for modern app development

Stars
9,287

Cap

Lightweight CAPTCHA alternative using proof-of-work and instrumentation challenges, for sites that want bot resistance without user puzzles.

Alternative to:

Cloudflare Turnstile

Privacy-first CAPTCHA alternative with proof-of-work

Stars

Healthchecks

Cron job monitoring service that alerts you when a scheduled task fails to check in on time.

Alternative to:

Cronitor

Get alerted when cron jobs and scheduled tasks miss their run

Stars
10,307

Highlight

Fullstack monitoring for web teams, pairing session replay with error tracking, logs and traces behind a few lines of setup.

Alternative to:

Datadog

Real-time observability for modern web applications

Stars
9,372

Crater

Self-hosted invoicing for freelancers and small businesses, covering estimates, expenses and payments across a web app and mobile clients.

Alternative to:

FreshBooks

AI-powered embedded AR/AP automation for platforms

Stars
8,344

Hatchet

Task orchestration for background jobs, AI agents and durable workflows, built on Postgres for teams that want to self-host.

Alternative to:

AWS Step Functions

Distributed task queue for background jobs and workflows

Stars

s&box

A game engine on Valve's Source 2 and .NET, with an editor for developers who want to build and ship games.

Alternative to:

Unity

Build and play games inside a game engine that runs live

Vendure

Headless commerce platform in TypeScript for teams running D2C, B2B or marketplace stores that need to change the core.

Alternative to:

Shopify

Flexible e-commerce for modern businesses

Stars
8,405

Builder

Visual editing for existing sites and apps, turning Figma files and your own components into code teams can publish.

Alternative to:

Contentful

Visual development platform for modern web experiences

Stars
8,823

Dograh

An open source voice agent platform for teams that want to build, test and self-host production phone assistants.

Alternative to:

Voiceflow

Self-hostable voice AI platform with a visual agent workflow builder

Stars
5,610

GrowthBook

Feature flags, experimentation and product analytics on your own data warehouse, for teams that will not build the platform themselves.

Alternative to:

Amplitude

Open-source A/B testing and feature flagging platform

Stars
8,302

Activeloop

Database for AI that stores raw data and vectors together, aimed at teams building LLM apps and training deep learning models.

Alternative to:

Pinecone

The tensor database for AI data

Stars
9,229

OpenLLMetry

OpenTelemetry extensions that trace LLM applications, for teams who want model calls in the observability stack they already run.

Alternative to:

LangSmith

Monitor LLM performance with open-source observability

Stars
7,414

FireZone

WireGuard based remote access with least privilege policies, for organizations replacing a legacy VPN with per-resource control.

Alternative to:

Cloudflare One

Fast, flexible VPN replacement with zero-trust security

Stars

Woodpecker CI

A small CI/CD engine with plugin extensibility, suited to teams who want pipelines without running a heavy build platform.

Alternative to:

CircleCI

Simple yet powerful CI/CD engine with great extensibility

Stars
7,827

OpenSign

Document e-signing you can host yourself, with templates, multi-signer flows and audit trails, for teams leaving commercial e-signature services.

Alternative to:

Adobe Acrobat Sign

Secure, customizable e-signatures for modern businesses

Stars

VoiceInk

Native macOS dictation that transcribes speech locally, for anyone who wants voice to text without sending audio off the machine.

Alternative to:

Aqua Voice

Local voice dictation with AI enhancement for macOS

Stars
6,333

Coroot

eBPF based observability that maps services and audits them automatically, for teams who cannot instrument every application by hand.

Alternative to:

Datadog

Full-stack observability without code changes

Stars
7,907

Weblate

Web based continuous localization used by thousands of libre projects and companies translating software across many languages.

Alternative to:

Crowdin

Continuous web-based localization for global reach

Stars
6,057

Hexclave

User infrastructure for product teams, bundling authentication, teams, payments, emails and analytics behind one shared user model.

Alternative to:

Auth0

Modular auth, payments, emails, and analytics for your product

Stars
6,854

OpenPanel

Web and product analytics combining Mixpanel style funnels with Plausible style simplicity, self-hostable and cookieless by default.

Alternative to:

Google Analytics

Cookie-free web and product analytics, self-hostable

Stars

OneUptime

One platform for uptime monitoring, on-call, status pages, incidents, logs, traces and metrics, replacing a shelf of separate SaaS tools.

Alternative to:

Datadog

Comprehensive monitoring and incident management platform

Stars
7,563

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Discover Open Source Alternatives to Popular Software

A curated collection of the best open source alternatives to everyday SaaS products. Save money with reliable tools hand-picked for you.

Wealthfolio

Fizzy

KeystoneJS

Krita

Databend

SolidTime

Tyk

Steel

Hanko

Mage

Expensify

AnyType

NHost

Cap

Healthchecks

Highlight

Crater

Hatchet

s&box

Vendure

Builder

Dograh

GrowthBook

Activeloop

OpenLLMetry

FireZone

Woodpecker CI

OpenSign

VoiceInk

Coroot

Weblate

Hexclave

OpenPanel

OneUptime

Discover Open Source alternatives to:

Airtable

Fathom Analytics

Kissmetrics

Notion

Teamwork

Todoist

Discover Open Source alternatives to:

Discover Open Source alternatives to:

Airtable

Fathom Analytics

Kissmetrics

Notion

Teamwork

Todoist

Wealthfolio

Fizzy

KeystoneJS

Krita

Databend

SolidTime

Tyk

Steel

Hanko

Mage

Expensify

AnyType

NHost

Cap

Healthchecks

Highlight

Crater

Hatchet

s&box

Vendure

Builder

Dograh

GrowthBook

Activeloop

OpenLLMetry

FireZone

Woodpecker CI

OpenSign

VoiceInk