See JMAP in action

Go

aerc

A terminal email client for the discerning hacker.

Next.js

Bulwark Webmail

A modern, open-source webmail client for Stalwart Mail Server. Fast and private JMAP-native support for email, calendar, and contacts.

PHP & JS

Cypht

Lightweight Open Source webmail aggregator.

Javascript

Group-Office

Open source groupware and collaboration platform.

JavaScript

JMAP Demo Webmail

A sophisticated demo webmail client to be used as a base for new projects.

Perl & Perl5

JMAP::Tester

A JMAP client made for testing JMAP servers.

TypeScript

JMAP Webmail

Privacy-focused webmail client with real-time push.

Java

Ltt.rs

An email client for Android.

Mailtemi

A native iOS/Android email client.

Go

mjmap

A sendmail-compatible command line JMAP client.

Rust

meli

Terminal email client.

Rust

mujmap

Synchronize JMAP mail with notmuch.

Parula

Full email app with chat, video conference and calendar. For Windows, macOS, Linux.

Dart

Twake Mail Client

Android, iOS and web client.

Java

Apache James

Apache James, a.k.a. Java Apache Mail Enterprise Server is an open source mail server written entirely in Java. The 3.0 series is adding JMAP support, upcoming 3.6.0 adds support for JMAP over websocket.

Go

atmail

Email hosting and collaboration platform for service providers and businesses, offering webmail, calendar, and mail server solutions

C

Cyrus IMAP

A scalable enterprise-grade IMAP, CalDAV and CardDAV server. The 3.0 series is adding JMAP support; instructions to enable it are in the developer docs.

PHP

Group-Office

Open source groupware and collaboration platform.

Rust

hyper-auth-proxy

A proxy to do HTTP basic auth from a JWT token and redis session credentials; built to add JWT bearer auth support to Cyrus's JMAP.

Rust

Stalwart

Open-source JMAP server built for robustness, security, and scalability — with complete support for JMAP Mail, Calendars, Contacts, File Storage, Sharing and multiple extensions.

Java

tmail-backend

Builds on Apache James with extra features.

Go

go-jmap

JMAP client library written in Go.

Java 7

Java JMAP Library

A low level jmap-client library as well as a higher level jmap-mua library.

TypeScript

jmap-client-ts

A lightweight promise-based API to make JMAP requests.

Rust

jmap-client

JMAP client library written in Rust. Includes full support for JMAP Core, JMAP Mail and JMAP over WebSocket.

TypeScript

jmap-jam

Jam is a tiny, strongly-typed JMAP client with zero runtime dependencies. It has friendly, fluent APIs that make working with JMAP a breeze.

JavaScript

JMAP-JS

A full implementation of the JMAP mail, calendar and contacts model in JavaScript. It supports asynchronous local changes and is tolerant of network failure — actions update the UI instantly, then synchronise back to the server when they can. Multi-level undo/redo support. Used by the demo webmail.

Rust

jmap-rs

Rust client (and maybe server) library for JMAP.

Python

jmapc

Python 3 client library for JMAP mail (partially implemented).

Rust

melib

Mail client library used in meli.

Rust

Missive

Email library with JMAP provider. Minimal spec-compliant client using reqwest+serde.

PHP

zend-jmap

JMAP for Zend Framework.

TypeScript

jmap-yacl

Another lightweight client library for JMAP, supporting JavaScript and TypeScript with built-in types for Typebox. OAuth and Push not yet implemented.

Rust

calcard

JSCalendar/iCalendar and JSContact/vCard parsing, building and conversion library for Rust. Try it online at convert.jmap.cloud.

Rust

jmap-tools

JMAP object parser with JSON Pointer querying and patching support.

TypeScript

jmap-kit

A robust, type-safe SDK for building JMAP client applications in TypeScript, with an extensible plugin architecture supporting standard and vendor capabilities.

Perl

JMAP-to-IMAP Proxy

A complete JMAP server implementation that uses any IMAP, CalDAV and CardDAV store as a backend.

Rust

IMAP-to-JMAP Proxy

Open-source IMAP4-to-JMAP proxy. Supports IMAP4rev2, IMAP4rev1 and multiple extensions.

Mimestream

A native macOS email client.

Mailtemi

A native macOS/GNOME (Linux/Windows) desktop email and calendar client.