INTERNET Co., Ltd. is a Japanese music software developer founded in 1988 and headquartered in Osaka. The company is best known for its digital audio workstation ABILITY, which evolved from its long-running Singer Song Writer sequencer line and is offered in tiers such as ABILITY Pro and ABILITY Elements, aimed at composition, recording, mixing, and mastering on a 64-bit audio engine with VST support.

Beyond its DAW lineup, INTERNET publishes the Sound it! audio editor and a catalog of singing-synthesis voice libraries built on Yamaha's VOCALOID technology and, later, Synthesizer V. Its vocal products include Gackpoid (Camui Gackpo), Megpoid (GUMI), Lily, Gachapoid, Kokone, and Otomachi Una, which have become fixtures of Japan's vocal-synth scene.

The company's software is primarily distributed in Japan, with an English-language storefront serving international customers. Its tools are positioned toward home producers, hobbyist composers, and vocal-synth users rather than the professional studio market occupied by larger Western DAWs.

INTERNET Ability has 1 product cataloged on Equipboard, including DAW Software.