OpenAltFinder

Find the Best Open Source Alternatives to Popular Software

Browse free, self-hostable alternatives to the tools you rely on every day.

Popular Tools You Can Replace

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Notion Notion Discord Discord 1Password 1Password Google Analytics Google Analytics Buffer Buffer Goodreads Goodreads Trello Trello Jira Jira WordPress WordPress ChatGPT ChatGPT Claude Code Claude Code Google Authenticator Google Authenticator

Interesting New Alternatives

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OTPHub

OTPHub

Simple OTP app for desktop and mobile.

Alternative to:
Google AuthenticatorGoogle Authenticator
Trezur

Trezur

Fast, secure, light-weight web-app to generate TOTP and HOTP tokens.

Alternative to:
Google AuthenticatorGoogle Authenticator
Toofer

Toofer

Local-first, web-based two factor authenticator app.

Alternative to:
Google AuthenticatorGoogle Authenticator
PiGallery 2

PiGallery 2

A fast directory-first photo gallery website, with rich UI, optimized for running on low resource servers (especially on Raspberry Pi).

Alternative to:
Google PhotosGoogle Photos
Home Gallery

Home Gallery

Self-hosted open-source web gallery for photos and videos with AI-powered image discovery, face detection, and tagging.

Alternative to:
Google PhotosGoogle Photos
CometCMS

CometCMS

Headless, simple CMS with a PHP backend and a convenient Vue admin frontend.

Alternative to:
ContentfulContentful
Hurl

Hurl

Run and test HTTP requests with plain text — a simple yet powerful command-line tool for API testing.

Alternative to:
PostmanPostman
Voiden

Voiden

Design, test and document APIs in plain Markdown with a git-native, offline-first approach.

Alternative to:
PostmanPostman
PixiEditor

PixiEditor

Universal open-source 2D editor for pixel art, painting, vector graphics, and animation.

Alternative to:
Adobe PhotoshopAdobe Photoshop
Many Notes

Many Notes

A Markdown note-taking web application designed for simplicity with vaults, collaboration, and PWA support.

Alternative to:
NotionNotion
Woodpecker CI

Woodpecker CI

A simple, yet powerful CI/CD engine with great extensibility. Self-hosted with minimal resource requirements.

Alternative to:
GitHub ActionsGitHub Actions
LiftTrace

LiftTrace

Self-hosted weightlifting tracker — single Docker container, AGPL-3.0, no telemetry, no cloud sync.

Alternative to:
HevyHevy
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AI & Machine Learning

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Customer Communication Platforms · Customer Relationship Management Tools · Ecommerce software

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Knowledge Management Tools · Team Chat & Messaging Tools

Content & Publishing Tools

Internal Knowledge Base · Wiki Software

Content Management System (CMS)

Headless CMS

Data & Analytics

Data Visualization · Web Analytics · App Analytics

Developer Tools

API Development & Testing Tools · AI Coding Agents · Source Code Management

Graphic Design Tools

Marketing & Branding Tools · Social Media Content Creation · Video Editing Tools

Health & Fitness Tools

Fitness tracking Tools · Health monitoring Tools · Habit Trackers

Infrastructure & Operations Tools

Database Management · Cloud Storage · Monitoring & Observability Tools

Marketing & Branding Tools

Email Marketing & Newsletters Tools · Marketing Automation

Podcasting

Podcast Apps

Productivity & Utilities

Password Managers · Automation Tools · Bookmark & Content Management Tools

Security & Privacy Tools

Secure Tunnels · 2FA Authentication · Virtual Private Network

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