TI-Nspire. Wide open.
You can download the latest release of Ndless here! This release brings support for the Ndless jailbreak for OS 6.4.0.74 on all CX II models. This means that up to now (June 8th, 2026) all current operating systems for CX and CX II are supported by Ndless! This release comes with a few minor bugfixes [ ]
You can download the latest release of Ndless here! This release includes an installer for OS 6.2.0.333 for CX II (all models) as well as OS 4.5.5.79 for CX (all models). As usual, support for previous OS versions is retained. OS 6.3.0 for CX II was just released last week, but this is not supported [ ]
You can download the latest release of Ndless here! This release includes an installer for the latest OS versions for CX (4.5.4.48) and CX II (5.3.0.564) models, which were just released a few days ago. It retains support for the slightly older releases (4.5.3.14, 5.2.0.771) as well, in the same installer files. In total, this [ ]
The wait is over now, you can download the latest release of Ndless here! While the biggest change is obviously the support for the CX II models and operating systems, users of later CX calculators (HW revision W and up) can now enjoy a better LCD compatibility mode, with much better application support and performance. [ ]
Ndless for OS 4.5.0.1180 is ready for download! Some changes in the workflow helped to discover some bugs in Ndless itself which caused some lua extensions like khicas to crash, which are finally fixed now. Most of those fixes apply to all supported OS versions, so it s recommended to update ndless_resources.tns even if you re still [ ]
Hackspire is already 10 years old! Time to look back on a great piece of TI calculator programming (hi)story: TI-Nspire hacking began quite early, just shortly after the calculator was released back in 2007 (yes, that s a decade old!). Originally, discussions and news about it happened on forums like United-TI and yAronet, where famous community [ ]
There are still many users of touchpad and clickpad calcs out there, stuck on OS 3.9.0. This is unfortunate for users of Touchpad CAS calcs, as there is no working Ndless for it. Additionally, even on Clickpad (CAS/non-CAS) and Touchpad non-CAS, a USB cable and host device were required for the installation, which is rather inconvenient. Now [ ]
We received many requests regarding Ndless for OS 4.3. However, updating Ndless to support a newer OS release is a lot of time-consuming work, this time it took a bit longer than expected. Long enough that OS 4.4 was getting close enough to just skip 4.3 entirely. This version was originally meant to be released in [ ]
We usually don t give any ETA regarding Ndless updates. This will unfortunately also be true for the latest OS 4.3, which is incompatible with the current Ndless revision. Ndless will be updated as long as there will be contributors willing to spend their time for the community (see this previous post to understand how difficult it can be). You can subscribe [ ]
I must first apologize for the endless flow of unanswered requests for updates. The long awaited Ndless 4.0 is out thanks to the hard work of the team, compatible with OS 4.0.3. It will let you run native programs on the latest TI-Nspires. The installation (and reinstallation on crash/reboot) does not require to be connected to a computer for a smoother [ ]