
Conjoon
The facts below are what the maker publishes about Conjoon, checked and dated. Our editors have not written about it yet.
The facts
Each one read from Conjoon's own pages, with the date it was checked.
What it does
- Accounts
- It can manage multiple email accounts in one browser instance.checked 12 Oct 2026
- Account setup
- With the local-mail-account package, users can maintain multiple IMAP accounts and account details are stored in browser Local Storage and sent with requests.checked 12 Oct 2026
- API
- Conjoon documents its REST API using OpenAPI.checked 12 Oct 2026
- Backend
- The maker describes an installable Lumen/Laravel backend and says the webmail package was developed to work with lumen-app-email.checked 12 Oct 2026
- Backend requirement
- The webmail package requires a service that complies with the conjoon rest-api-email API.checked 12 Oct 2026
- Build dependency
- Building from source requires Sencha Ext JS version 7.4 or above, and the guide says access to Sencha's private NPM repository requires a commercial SDK license or a 30-day framework trial registration.checked 12 Oct 2026
- Build requirement
- Building from source requires Sencha Ext JS version 7.4 or above, and access to Sencha's private NPM repository requires a commercial SDK license or a 30-day framework trial.checked 12 Oct 2026
- Deployment
- The frontend can be served as static files from a webserver, and official builds are distributed as downloadable ZIP files.checked 12 Oct 2026
- Email providers
- The site lists Google Mail, Microsoft Outlook, AOL, Yahoo, Freenet, GMX, and web.de as preconfigured email services.checked 12 Oct 2026
- Email services
- The site says it comes preconfigured for Google Mail, Microsoft Outlook, AOL, Yahoo, Freenet, GMX, and web.de.checked 12 Oct 2026
- Extensibility
- The client is configurable and extendable, with application and component plugins.checked 12 Oct 2026
- Hosting
- The web client requires a webserver capable of serving static files.checked 12 Oct 2026
- mailto links
- A bundled plugin can register the client as a handler for mailto links.checked 12 Oct 2026
- Multiple accounts
- The interface can manage multiple email accounts in one browser instance.checked 12 Oct 2026
- New message alerts
- The client can poll mailboxes for new messages and provide sound and desktop notifications; desktop alerts require browser notification permission.checked 12 Oct 2026
- Product
- Conjoon is an open source JavaScript email client with a web frontend.checked 12 Oct 2026
- Protocols
- Its backend supports IMAP and SMTP operations through the rest-api-email API.checked 12 Oct 2026
- Purpose
- It is a lightweight, feature-rich email client built for the web.checked 12 Oct 2026
- Requirements
- The installation guide requires Node.js version 16 or above.checked 12 Oct 2026
- Security
- The pages reviewed do not state a security certification or compliance standard.checked 12 Oct 2026
- Support
- The site directs users to GitHub community tools and offers a link to professional support.checked 12 Oct 2026
Where it runs
- App coverage
- webchecked 23 Sep 2026
Money
- Free plan
- Yeschecked 23 Sep 2026
Alternatives to Conjoon
- 1

Zoho Mail
Free planAndroidiOSWebAPI9.0Free plan - 2

Mailbutler Smart Assistant
Free planAndroidiOSWebExtension8.9Free plan - 3

Front
AndroidiOSWebAPI8.6From $25 a month - 4

Spike
Free planAndroidiOSWebmacOS8.5From $4 a month - 5

eM Client
Free planAndroidiOSmacOSWindows8.4From $39.95 a year - 6

Newton Mail
Free planAndroidiOSmacOSWindows8.4From $5 a month
