The Open Source Entra ID Sync Tool

It is often difficult to find an official Microsoft open source tool to directly replace the Entra ID (Azure AD) synchronization engine. Faced with expensive or complex solutions, ExodSync positions itself as the local, free, and privacy-respecting alternative.

1. ExodSync vs CiraSync

CiraSync is a well-known cloud platform for contact and calendar synchronization. While effective, it requires a monthly per-user subscription and hosts your data on third-party servers.

Why choose ExodSync: ExodSync runs locally on your machine. It manages the synchronization of your users and groups without ever sending any data to a third party. It is the ideal alternative if you are looking for a subscription-free and 100% GDPR-compliant solution.

2. ExodSync vs Okta / Keycloak

Solutions like Okta (proprietary) or Keycloak (open source) are excellent Identity Providers (IdP). Keycloak handles delegated authentication (SAML, OpenID Connect) to Entra ID very well.

The difference: ExodSync does not replace an IdP. It acts as a massive provisioning engine (creation/modification of users via Excel/CSV). While Keycloak secures your connections, ExodSync automates the creation of your 500 new students or employees in Entra ID in one click.

3. ExodSync vs LockPass

LockPass is an open source password manager that integrates mechanisms to synchronize groups from Entra ID.

The synergy: While LockPass focuses on passwords and access security, ExodSync takes care of your directory hygiene: updating titles, departments, email addresses, and phone numbers for the entire company.

4. Official Microsoft Alternatives

Microsoft Entra Connect Sync: The legacy heavy tool to link a local Active Directory (On-Premise) to the cloud. Not open source.
Microsoft Entra Cloud Sync: The lightweight cloud agent.

What if you don't have a local Active Directory server? That's where ExodSync shines: it acts as a direct bridge between your files (HR exports, school software) and the Microsoft cloud, without requiring local Active Directory infrastructure.