CreakBox V2.1 Press Kit & Media Resources
A free 303 VST.
A different kind of story.
Looking for the best free 303 VST to cover? Meet CreakBox V2.1 “Just Bass”: a TB-303-inspired VST3 bass synthesizer for Windows, built by Frank Reitz under the reitzwerk name.
Find official screenshots, video demonstrations, accurate product facts and independent coverage here. Everything in one place for journalists, reviewers and creators.
From 2003.
To Just Bass.
CreakBox began as Frank Reitz’s experiment in understanding the TB-303: its oscillator, filter, envelope, Slide, Accent and the subtle interaction between them. Bioroid brought the original project into the VST world in 2003.
In 2026, reitzwerk introduced a ground-up rebuild, CreakBox V2. The current V2.1 “Just Bass” takes a bass-focused direction: four distinct sound models, expressive sequencing, IDEA pattern development, distortion, tape echo and reverb. It is not a skin, port or code update of the 2003 plug-in.
The free FLT1 voice can be automated and exported in a DAW at 1× quality. All four voices can be explored manually; a registered license extends automation, rendering, higher oversampling and Circuit Bend access.
Read the full CreakBox storyThe facts.
No guesswork.
Product details and ready-to-use editorial descriptions of the current version. This is CreakBox V2.1 “Just Bass”, not the earlier V2 bass-and-drum release.
- Product
- CreakBox V2.1 “Just Bass”
- Developer
- Frank Reitz / reitzwerk
- Format
- 64-bit VST3 instrument
- Platform
- Windows 10 / 11
- FREE edition
- FLT1 automation and host-reported offline export at 1×; manual live sound exploration of FLT1–FLT4
- Full license
- All four models in automation/offline export; Circuit Bend, Quick controls and live oversampling up to 16×
- Sequencer
- 16 steps; four pattern memories; per-step Gate, Accent, Slide and Attack
- Sound
- FLT1, FLT2, FLT3 and FLT4; analogue-inspired distortion, tape processing, tape echo and reverb
- Availability
- Free plugin download; optional paid Personal License
CreakBox V2.1 in brief
CreakBox V2.1 “Just Bass” by reitzwerk is a TB-303-inspired VST3 bass synthesizer for Windows. Its free FLT1 voice supports sequencing, DAW automation and audio export. Four sound models, Slide, Accent, the IDEA workflow and analogue-inspired effects offer different approaches to acid bass sound design.
Beyond a conventional 303 emulator
Originally introduced as CreakBox in 2003, the instrument returned in 2026 as a ground-up rebuild by creator Frank Reitz under the reitzwerk name. CreakBox V2.1 “Just Bass” is a 64-bit VST3 acid bass synthesizer for Windows 10 and 11, inspired by the expressive behaviour of the classic TB-303 rather than claiming to reproduce it exactly. Its four sound models take different approaches to filtering, resonance and modulation. A 16-step sequencer provides per-step notes, Gate, Slide, Accent and Attack, while the IDEA workflow helps producers generate and develop related bass patterns. Distortion models, tape processing, tape echo and reverb expand the sound. The free edition lets users produce and export with FLT1; a registered license enables the additional voices in automated and offline-rendered projects, higher quality settings and deeper Circuit Bend editing.
Suggested attribution: “CreakBox V2.1 by reitzwerk (Frank Reitz)”. For precise FREE vs Full rendering behaviour, refer to the official FAQ ↗.
Show the
real instrument.
Three official CreakBox interface screenshots plus the original CreakBox and reitzwerk brand icons. Open any asset to access its original PNG file.
PERFORM / The instrument
Four sound models, filter controls, reverb, echo and effects in the main CreakBox interface.
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IDEA / Pattern exploration
The generation and development workspace for exploring related acid bass patterns.
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CIRCUIT BEND / Under the panel
Expanded editing of circuit and processing behaviour, available with the Full license.
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CREAKBOX / Product icon
Official CreakBox branding for plugin roundups, reviews and press features.
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REITZWERK / Brand logo
Official developer identity for editorial credits, interviews and media coverage.
Open original PNGImage credit: reitzwerk / Frank Reitz. Please identify the current product as “CreakBox V2.1 Just Bass”. The original 2003 instrument and the 2026 V2 bass-and-drum edition are different releases.
Need alternate logo formats, transparent artwork, raw audio or an interview? Use the contact page to request additional media files or confirm permission for a particular use.
Hear it.
Then decide.
These are official reitzwerk demonstrations of the sound and behaviour. They are not independent reviews. Links open on YouTube and do not load an embedded video player on this page.
Best Free 303 VST? CreakBox V2.1 FREE
Start here. Hear the free FLT1 voice and the characteristic 303-style bassline sound.
Watch FREE sound demo
Free versus Full. Same track.
Listen to FLT1 and FLT3 alternating on the same musical material to hear their different response.
Watch comparisonMore official demonstrations: YouTube / @reitzwerk
A story with
a history.
Coverage from external music software publications, from the original CreakBox era to its 2026 return. Each link is labelled with the release it actually discusses.
Reitzwerk releases CreakBox V2 acid bass-and-drum instrument
Independent release coverage of the rebuilt 64-bit Windows VST3 instrument. This article concerns V2, before the later bass-focused V2.1.
Read article ↗Reitzwerk releases CreakBox V2 – a modern acid bass and drum instrument
Independent publication coverage of the 2026 V2 release and its bass, drum and effects design.
Read article ↗Bioroid Creakbox v1.0 demo released
Original VSTi announcement covering the early CreakBox Bassline demo and its 303-style sequencing.
Read article ↗Best free TB-303 emulation software: VST plug-ins & standalone
Historical list including the independently extended CreakBox Bad Boys edition, not the current reitzwerk release.
Read article ↗Editorial clarification: The 2003 Bioroid demo, 2014 Bad Boys edition and 2026 CreakBox V2 bass-and-drum release are historically related but are not interchangeable with today's CreakBox V2.1 “Just Bass”. Links above refer to their original articles.
Review it.
Ask anything.
Press, review licenses, interview requests, logos and additional media assets / Contact reitzwerk.