If you are tuning an electric guitar or bass on a PC, use a USB audio interface rather than the computer’s built-in mic for flawless, latency-free tracking. Finding Authentic Korg Gear
If you just want a reliable clip-on tuner from Korg, look into the Korg Pitchclip 2 or the Korg GA-1 , which are inexpensive, modern equivalents to the AT-2's legacy.
Use this for acoustic instruments; just place the tuner near the sound source.
If you were looking for a digital "AT2" app or free software: korg at2 free
The is a compact chromatic tuner primarily used for guitars and basses. While there is no standalone software named "Korg AT-2" available for free download, the hardware device is widely available on the secondary market. If you are looking for free Korg audio tools, you can access the Korg Software Bundle using a license card from a purchased Korg product, which includes lite versions of various plugins. Hardware Overview: Korg AT-2 Auto Tuner
Before diving into software, it is vital to understand why the hardware remains a benchmark for musicians. The Korg AT-2 Auto Tuner is a compact, vintage chromatic tuning instrument made in Japan. It earned an industry-wide reputation for being practically indestructible and exceptionally accurate. Key Specifications of the Hardware: Harmonica Tuning tips: Korg CA-2
Many users report that these units, despite being discontinued, last for decades 1.2.4 . Is There a "Korg AT-2 Free" Download? If you are tuning an electric guitar or
Allowed for acoustic tuning without plugging in a cable.
: Known for a "needle damping" style of response that some users find more stable than modern smartphone apps. BluesHarmonica.com Availability and "Free" Content
Korg has released official tuner apps for iOS and Android, such as the Korg PitchCrow or other similar apps, which offer high-precision tuning, though they differ from the analog needle experience of the AT-2. If you were looking for a digital "AT2"
: A completely free, no-install online chromatic tuner that uses your computer's microphone. Key Features of the Original Korg AT-2 Hardware
Unlike no-name tuners from Amazon, the AT-2 uses Korg’s proven high-precision pickup. It detects notes with an accuracy of +/- 1 cent. For a clip-on at this price point (even free), that is good enough for live gigs and home practice. You won’t be out of tune in the mix.