Receive and send
libre currency Ğ1


Cesium is the simple way to make exchanges using libre currency


Cesium digitally sign your transactions before sending them to the Duniter blockchain.


Cesium est codé avec amour et vous est offert sans exiger de contre-partie. Si vous aimez Cesium, vous pouvez le signifier aux développeurs en leur offrant des Ğ1 ;-)

You are Free too

Cesium is a free software and distributed under the GNU AGPL-3.0 licence. This means you can copy it, modify it, or have a look at its source code on  GitLab.

Only a few clicks left
before you can get your first Ğ1

Odoo - Echantillon n°1 pour trois colonnes

1. Download Cesium

Go to the Download page to get the file that suits your operating system.

Odoo- Echantillon n° 2 pour trois colonnes

2. Create an account

On Cesium home screen, click on "Create an account", then "Start" and finally choose "Simple wallet" for a start.

Choose secret id and password. Be sure to memorize them correctly because you won't be able to get them back if you forget them.

Odoo- Echantillon n° 3 pour trois colonnes

3. Start receiving payments

Click on you public key ; it will be automatically copied to your clipboard. Then simply paste it to the user who wants to transfer you Ğ1.

Created by humans, for humans


Cesium is developed by a community of humans who believe in the concept of libre currency, and in the Ğ1 in particular.


You can adapt Cesium to your own need. For example, if you want to launch a libre currency for your own community.

Highly caffeinated

Cesium est develloped thanks to the huge quantities of coffee its developers consume daily in front of their laptops to avoid faints due to countless hours of sleep self-deprivation to code Cesium. If you find any benefit in using Cesium, and want to support its ma maintenance and development feel free to  offer them a coffee.

What they say about Cesium