C64 Ultimate Sender

by g_horricks@hotmail.com · Tools

Manifest V3 Free

View in Chrome Web Store Data as of 21 Oct 2026

Run PRG/CRT, mount D64/D71/D81 disks, or play SID / Amiga MOD tunes on your Commodore 64 Ultimate.

Users

+4 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#141K

#118K among extensions

Version

1.4

updated 8 Aug 2026

Users

monthly, 3 months

Latest, 21 Oct 2026: 26 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 months

Latest, 21 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About C64 Ultimate Sender

Turn any PRG or CRT link into a one-click launch on your real Commodore 64. C64 Ultimate Sender talks to a Commodore 64 Ultimate (1541 Ultimate / Ultimate 64) on your local network using its built-in REST API. When you find a C64 program (.prg) or cartridge (.crt) online, send it to the machine and it resets and runs immediately — no downloading, copying to SD card, or menu navigation. How to use it: • Right-click any link to a .prg or .crt file and choose "Send to C64 Ultimate". • Or open the toolbar popup to paste a file URL, or pick a file from your computer, and press Send. • Set your device's IP address in the popup (default 192.168.4.39) and use the Test button to confirm the connection. Notes: • Works entirely on your own local network. The extension does not collect, store remotely, or transmit any of your data to the developer or third parties. • The first time you send to your device, Chrome asks permission to access your local network — allow it so the extension can reach the machine. • If a title downloads but does not boot, switch the upload mode (raw/multipart) in the popup; one suits your firmware. This is an independent hobbyist tool and is not affiliated with the makers of the Ultimate hardware or with Commodore.