Open Source Google Contacts Alternatives

The best open source alternative to Google Contacts is Nextcloud Contacts. If that doesn't suit you, our users have ranked more than 50 alternatives to Google Contacts and 12 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Google Contacts are DAVx5, Simple Contacts, OpenContacts and Kontact.

Google Contacts alternatives are mainly Contact Managers but may also be Calendar Apps or Email Clients. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Google Contacts.

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Google Contacts

Free • Proprietary
Contact Manager

Online
Android
Android Tablet
Android Wear

Google Contacts is Google's contact management tool that is available in its free email service Gmail, as a standalone...

Learn more about Google Contacts

Nextcloud Contacts
Do you think this is a good alternative?
Yes
No
Free • Open Source
Contact Manager
Online
Self-Hosted
12 alternatives to Nextcloud Contacts
The Nextcloud contacts app is a user interface for Nextcloud's CardDAV server. Easily sync contacts from various devices with your Nextcloud and edit them online.
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Nextcloud Contacts Features
Nextcloud integration
Contacts
CardDAV Support
Nextcloud Contacts vs Google Contacts opinions
pros, cons and recent comments
ndlinn
Free and open source. Unfortunately it itself it's only a viable alternative to using Google Contacts from the web, but there are methods of syncing with your mobile devices, though I wish this were a far easier process.
Positive comment•
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DAVx5
Do you think this is a good alternative?
Yes
No
Free • Open Source
Calendar App
Android
Android Tablet
F-Droid
7 alternatives to DAVx5
DAVx5 is a CalDAV/CardDAV management and sync app for Android.
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DAVx5 Features
1. Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
2. Ad-freeDAVx5 doesn't contain any form of external advertising.
3. No TrackingDAVx5 will not track you or use your personal data.
4. Calendar IntegrationDAVx5 lets you sync your tasks and events with your calendar application.
5. Dark ModeDAVx5 supports dark mode for comfortable usage in low light conditions.
6. No registration requiredYou can use most of the features in DAVx5 without registration.
WebDAV Support
CardDAV Support
CalDAV Support
Multiple languages
WebDAV Sync
DAVx5 vs Google Contacts opinions
pros, cons and recent comments
kremund
This is a client that can download & upload contact, calendar & task info from a syncing service like fruux to your Android device. Note that you cannot browse contacts in this app, you'll need another app for that, like Simple Contacts Pro. I think DAVx5 is a great choice for this in-between link, but it is not a one to one replacement for google contacts.
Comment•
0
Simple Contacts
Do you think this is a good alternative?
Yes
No
Free • Open Source
Contact Manager
Android
Android Tablet
F-Droid
10 alternatives to Simple Contacts
A simple light app for creating and managing your contacts from any source. The contacts can be stored on your device only, but also synchronized via Google, or other accounts.
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Simple Contacts Features
1. Ad-freeSimple Contacts doesn't contain any form of external advertising.
2. Privacy focusedSimple Contacts is considered a privacy friendly alternative.
3. Works OfflineSimple Contacts can be used without the need to connect to the internet.
4. Dark ModeSimple Contacts supports dark mode for comfortable usage in low light conditions.
Contacts
Phone dialer
Simple Contacts vs Google Contacts opinions
pros, cons and recent comments
Guest
because you can't trust Google
Positive comment•
0
OpenContacts
Do you think this is a good alternative?
Yes
No
Free • Open Source
Contact Manager
Android
F-Droid
10 alternatives to OpenContacts
Manage contacts. Keep your contacts private and secured with OpenContacts independent and local database.
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OpenContacts Features
1. Privacy focusedOpenContacts is considered a privacy friendly alternative.
2. Works OfflineOpenContacts can be used without the need to connect to the internet.
3. Dark ModeOpenContacts supports dark mode for comfortable usage in low light conditions.
4. Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
Contacts
Automatic call and SMS logging
Sync Contacts
Multiple languages
Kontact
Do you think this is a good alternative?
Yes
No
Free • Open Source
Email Client
Calendar App
Contact Manager
Linux
112 alternatives to Kontact
Personal Information Manager (Mail, Contact, Calendar and more).
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Kontact Features
Google integration
Convert Email to Task
KDE
Feed Reader
Personal Information Manager (PIM)
Contacts
Contact PEA
Do you think this is a good alternative?
Yes
No
Free • Open Source
Contact Manager
Windows
Mac
Linux
BSD
11 alternatives to Contact PEA
Encrypted contact management tool.
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Contact PEA Features
1. Encrypted BackupContact PEA uses encryption algorithms to keep your files safe as well as prevent unauthorized access.
2. Privacy focusedContact PEA is considered a privacy friendly alternative.
3. PortableContact PEA can be used from a USB stick or similar with no prior installation.
4. No TrackingContact PEA will not track you or use your personal data.
5. Ad-freeContact PEA doesn't contain any form of external advertising.
6. Two-factor AuthenticationContact PEA supports two-factor authentication (2FA).
7. No registration requiredYou can use most of the features in Contact PEA without registration.
8. AES-256 EncryptionContact PEA has AES-256 Encryption, i.e. very strong security.
Contacts
Connect You
Do you think this is a good alternative?
Yes
No
Free • Open Source
Contact Manager
Android
Android Tablet
F-Droid
25 alternatives to Connect You
Contacts app for Android using MD3.
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Connect You Features
1. Ad-freeConnect You doesn't contain any form of external advertising.
2. Privacy focusedConnect You is considered a privacy friendly alternative.
3. Dark ModeConnect You supports dark mode for comfortable usage in low light conditions.
4. Works OfflineConnect You can be used without the need to connect to the internet.
Contacts
Sync Contacts
vCard Studio
Do you think this is a good alternative?
Yes
No
Free • Open Source
Contact Manager
Windows
Linux
10 alternatives to vCard Studio
A contact management application with support for vCard file format (.vcf).
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vCard Studio Features
Contacts
Vcard
Kontact - KAddressBook
Do you think this is a good alternative?
Yes
No
Free • Open Source
Contact Manager
Linux
34 alternatives to Kontact - KAddressBook
It supports large variety of services, including NextCloud, Kolab, Google Contacts, Microsoft Exchange (EWS) or any standard CalDAV server.
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Kontact - KAddressBook Features
Contacts
Communicator
Do you think this is a good alternative?
Yes
No
Free • Open Source
Contact Manager
Linux
6 alternatives to Communicator
Communicator is an integrated address book and dialer application. Contacts feature the search for and view of contacts, edit contact details, and make new contacts, favorites, and dialer pad.
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Communicator Features
Contacts
Personal Information Manager (PIM)