Tronsonic is a UK-based developer of virtual instruments and sample libraries for Native Instruments Kontakt. The company specializes in capturing the sound of vintage synthesizers, keyboards, and organs by recording them through 1960s and 1970s valve equipment and tape machines, producing sample libraries with a distinctive warm, lo-fi character. Their tagline, "Valve and Tape Sampling for Kontakt," reflects a process inspired by the sonic aesthetics of mellotrons and the BBC Radiophonic Workshop.

Tronsonic's catalog spans a wide range of vintage-inspired instruments. The Expressive Tron offers enhanced Mellotron M400 samples re-recorded to worn tape on a 1965 Ferrograph Series 6 tape recorder, while the Tronto Trilogy combines three analog-style polysynths into a single Kontakt instrument. Other notable releases include the Organatron (a Hammond M100 sampled to tape), the Dark Horse (based on the 1980 Kawai 100F monosynth), and the Waveform 72 (derived from a 1972 monophonic synthesizer). Several products, including the System 1000M modular-style synth and the J4 (inspired by the Roland Jupiter-4), were developed in collaboration with fellow UK sample library developer Synth Magic. Many of their instruments use the proprietary "microtape plus" format, which includes a tape-echo-style sequencer and effects section built into the Kontakt interface.

Tronsonic has 7 products cataloged on Equipboard, including Kontakt Instrument and Guitar Amplifier Cabinets. Their gear is featured by 2 artists, with the strongest followings in Rock and Electronic. Notable users include Jerry Cantrell and Kebu.