Help center
Jimm is a mobile ICQ client for Java ME phones. In the mid-2000s, people installed it on Nokia, Siemens, Sony Ericsson, Motorola, and other feature phones to stay online in ICQ without a computer. It mattered not only as software, but as part of a culture: short messages, UINs instead of modern usernames, statuses, compact contact lists, and the incoming message sound. In 2026, interest in Jimm is returning because of nostalgia and the desire to revive real old devices. Many phones still power on, support JAR apps, and can access the network through GPRS, EDGE, Wi-Fi, or an emulator. The project does not claim to be official ICQ. The goal is to preserve the old mobile messenger experience and give people a clear way to run Jimm, QIP, and an OSCAR-style connection again. Today, Jimm is not just an old JAR file; it is an entry point into a retro network for people who want the feeling of ICQ back.
It brought ICQ to feature phones back when mobile internet was slow and expensive. The lightweight Java client was a great fit for short messages, statuses, and a compact contact list.
Today it is a way to bring an old device back to life and see what mobile messaging looked like before smartphones. It is especially interesting on real Nokia, Sony Ericsson, and Siemens phones.
