IDE for Interlisp and Common Lisp
Note: Registration for online.interlisp.org and notecards.online have been combined.
New user? Register here
You are free to use online.interlisp.org and notecards.online to
explore the many wonders of Interlisp and Notecards.
A verification email has been sent to . Please follow the
directions in this email to verify your account.
Any account that has not been verified within 7 days of its creation
may be deleted without notice.
Guest login will give you full access to the Interlisp environment for a
single session. No data or files are saved between guest login sessions.
If you wish to save your Interlisp session or to save files across sessions,
you must register and login using your email address.
Ordinarily, "Start Interlisp" will start up Interlisp using the standard full.sysout from the latest Medley release.
Checking this option will cause "Start Interlisp" to instead restart your latest session using the retained
If there is no retained lisp.virtualmem, startup will be from full.sysout.
Checking this option will cause "Start Interlisp" to instead start up using the custom sysout stored at ~/il/sysout/online.sysout
in your online.interlisp.org home directory.
You can create this sysout using the online Interlisp environment or you
can upload (and rename) any Medley sysout using the sftp feature.
If ~/il/sysout/online.sysout does not exist, the standard full.sysout will be used instead.
If this option is checked, the Notecards app will be loaded and started up when Interlisp is started.
If this is the first time Notecards has been run, demo notefiles will be placed in your home directory at
This option is disabled if "Resume previous session" is checked.
If this option is checked, the Rooms app will be loaded and started up when Interlisp is started.
Checking this option will cause "Start Interlisp" and "Start Terminal Session" to also start up an SFTP server on online.interlisp.org.
This SFTP server can be used to upload or download files to/from your online.interlisp.org home directory using any standard SFTP client
The port#, username and password for accessing the SFTP server are given in the WHO-LINE window in the Interlisp
environment or at the top of the terminal window in the Terminal Session environment.
Ordinarily, "Start Interlisp" will start up Interlisp using the standard ONLINE-INIT from the latest Medley release.
Checking this option will cause "Start Interlisp" to instead start up using the custom sysout stored at ~/il/initdir/ONLINE-INIT or
~/il/initdir/ONLINE-INIT.LCOM in your online.interlisp.org home directory.
You can create this custom init file using the online Interlisp environment or you
can upload any Medley sysout using the File Manager feature.
If ~/il/init/ONLINE-INIT(.LCOM) does not exist, the standard ONLINE-INIT will be used instead.
Medley supports both Interlisp and Common Lisp. The system starts up with a single Exec window running a
read-eval-print loop (REPL) for executing Lisp. This Exec window can be either Interlisp- or Common Lisp-based.
This option selects whether the initial Exec window is Interlisp- or Common Lisp-based.
Additional Exec windows based on either Interlisp or Common Lisp can be started at any time from the background menu.
If you are new to notecards.online, just check "Do not show" and click "OK".
For previous users of notecards.online
Notecards.online has been merged into online.interlisp.org.
You can still use the notecards.online address. The result will be a
Notecards-centric version of the online.interlisp.org experience.
You will need to re-register to create an account at online.interlisp.org.
Or use your existing acccount at online.interlisp.org for your notecards.online work as well.
Any custom Notefiles that you created on the "old" notecards.online,
will need to be moved manually. Please contact firstname.lastname@example.org for help.