Alternatives to CalendarSync

Linear

The issue tracker you'll enjoy using

Notion

Your wiki, docs & projects

Miro

The collaborative whiteboard

Slack

Where work happens

Loom

Async video messaging

Flowise

Build AI agents visually, an open source agentic systems development platform

Home Assistant

Open source home automation that puts local control and privacy first

Logseq

A privacy-first alternative to WorkFlowy

Mattermost

Collaboration Platform for Mission Critical Work

Medusa

Headless e-commerce platform

Metabase

Business intelligence software

Nextcloud

Open source content collaboration platform

Odoo

Open Source ERP and CRM

Paperless-home

Paperless-home hosts your personal document management system: Paperless

Plane

AI-native project management

Plausible

Simple, privacy-friendly Google Analytics alternative

RustDesk

Open source virtual / remote desktop infrastructure for everyone

Signal

Encrypted, secure chat and video calls

Umami

Privacy-First Analytics Platform

Alacritty

Modern cross-platform terminal emulator

Automatisch

Open Source Zapier Alternative

Bagisto

Headless e-commerce platform

Better Auth

A comprehensive authentication framework offering email/password

Element

Secure collaboration and messaging

ERPNext

Open-source ERP solution offering modules

Fandom

The entertainment site where fans come first

Formbricks

Build forms and receive & manage submission data in one platform

GitButler

A Git client for simultaneous branches on top of your existing workflow

Grist

Spreadsheet Software to End Data Chaos

Jitsi

Free Video Conferencing Software for Web & Mobile

Karakeep

Save, Organize & Tag with AI

LanguageTool

Open source grammar, style and

Matomo

Privacy-first analytics you can trust

Memos

Memos is a self-hosted, open-source note-taking app built around a private

Notesnook

Open source zero knowledge private note taking

OpenProject

Project management software

Proton Mail

Free secure email account service provider with built-in end-to-end encryption

Redash

Redash is an open-source data visualization and analytics platform

Saleor

Composable, Open Source, Headless Ecommerce Platform

Seafile

Open Source File Sync and Share Software

Temporal

Workflows as code platform

Tuta

Secure email for everybody. Open Source

Twenty

Self-hostable CRM built for technical teams who need a fully customizable

Windmill

Code-first orchestration platform for internal software

Zellij

A terminal multiplexer that organizes your workflow

Zotero

FOSS tool to collect, organize, cite, and

Zulip

Organized team chat

ActivityWatch

Free open-source time tracker that automatically monitors your device usage

Anarlog

Records system audio without joining your call

Anytype

An open-source Notion alternative