This is a very popular 3rd party desktop wallet for Kepler, it's been created by community member 'Xiaojay'
Currently, the wallet supports these OS:
Download the wallet from https://github.com/xiaojay/keplerwallet/releases/
Send some funds for test, this option will create a send file, the receiver needs to accept this file in order for the transaction to be completed.
The Kepler Desktop Wallet also supports MacOS
Download the wallet from Releases · xiaojay/keplerwallet · GitHub
Choose the Mac OS version
Open the .dmg file you've downloaded and drag the App into the Applications folder
This error shows up when you try to open the wallet for the first time, it can be ignored, press Cancel here
On second launch, you'll see the option to open the wallet, after you give authorization here, you will not be asked the same question again.
This is the welcome screen that will show up on first launch
Make sure to back up your seed words here, without them you will lose access to your funds
Login screen after you launch the wallet again
Here we're receiving a transaction file
After confirming and finalizing, you will see your available funds.