DeCoda is a song deconstruction tool from zplane that imports an audio file and analyzes its chords, beat, tempo and structure so the parts can be studied, looped and exported.
deCoda at a glance
| Developer | zplane |
|---|---|
| Type | Studio Tools / Music Theory Tools |
| Formats | VST2, AU, AAX, Standalone |
| Operating systems | Windows 10 or later, macOS 10.15 or later |
| Apple Silicon | Native |
| Architecture | 64-bit |
| Free trial | Available |
| Price on Plugin Boutique (October 2026) | €48.59 |
What deCoda does
The plugin is built around learning existing songs. An audio file is imported and deCoda decodes its musical data, including the beat, tempo and chords, then labels the song into sections such as intro, verse and chorus. The developer describes the chord and structure recognition as AI-based, with the output offered as educated guesses that serve as a starting point for edits. In some cases no edits are needed. Navigation is done in musical terms rather than by timeline position. Song parts, bars and beats can be explored with the keyboard or by touching and swiping on a touch screen, and each section can be set to loop with looping options that expand a loop as quickly as needed.
Key features
- Chord and structure recognition. DeCoda decodes the beat, tempo and chords of an imported song and divides it into sections such as intro, verse and chorus.
- Tempo and key change. Tempo can be brought down without changing pitch, and the key of the whole track can be transposed to suit a voice or instrument.
- Focus EQ and inverted Focus. Focus mode highlights a single instrument in the stereo mix, and the inverted Focus mode removes it so the remaining parts can be heard.
- Piano roll spectral view. A piano roll display shows the melodic content of the song, where notes can be picked and played back.
- Looping and navigation. Sections can be looped with flexible options, and parts are navigated by bar and beat from the keyboard or by touch.
- MIDI and audio export. Results are exported as MIDI for a DAW or notation software, and the imported audio formats are WAV, AIFF, MP3, WMA, FLAC and OGG.
- Find Key and tempo chords. A Find Key function and tempo chords help the advanced algorithms establish the key and the chord progression.
Use cases
- Learning parts from a recording. A musician can isolate one instrument with Focus EQ, slow the tempo without changing pitch, and loop the passage until it is learned.
- Transcribing to MIDI. Melodic content visible in the piano roll can be picked and exported as MIDI for a DAW or notation software.
Compatibility
DeCoda is available as VST2, AU, AAX and Standalone for Windows 10 and macOS 10.15 or later, with native support for Apple M1 processors listed. The trial is available before purchase.
Who it is for
DeCoda suits musicians learning songs by ear, arrangers who need chords and song structure from a recording, and producers who want to transpose or slow a reference track. It is aimed at study and transcription rather than sample-based production.
deCoda compared with similar plugins
InstaChord and InstaScale from W. A. Production are studio tools for music theory and come as VST3, VST2, AU and AAX for Windows and macOS. InstaChord & Expansions from the same developer is available as VST2 and AU only. Melody Sauce 3 from EVAbeat is a music theory tool that comes as VST3, VST2 and AU for Windows and macOS. deCoda differs from these by analyzing imported audio files rather than building chords and scales from theory.
| Plugin | Developer | Type | Formats | Systems | Price |
|---|---|---|---|---|---|
| deCoda | zplane | Music Theory Tools | VST2, AU, AAX, Standalone | Windows, macOS | €48.59 |
| InstaChord | W. A. Production | Music Theory Tools | VST3, VST2, AU, AAX | Windows, macOS | €76.36 |
| InstaScale | W. A. Production | Music Theory Tools | VST3, VST2, AU, AAX | Windows, macOS | €76.36 |
| InstaChord & Expansions | W. A. Production | Music Theory Tools | VST2, AU | Windows, macOS | €127.93 (regular €264.74) |
| Melody Sauce 3 | EVAbeat | Music Theory Tools | VST3, VST2, AU | Windows, macOS | €98.18 |
Price and availability
deCoda was listed on Plugin Boutique in October 2026 at €48.59. A free trial is offered. Prices change often, so the store page shows the current one.
deCoda FAQ
Does deCoda run on Apple Silicon Macs?
Yes. Native support for Apple M1 processors is listed, and the minimum OS on macOS is 10.15.
Which audio formats can deCoda import?
WAV, AIFF, MP3, WMA, FLAC and OGG files can be imported for analysis.
Is there a trial for deCoda?
Yes. A trial is available before purchase.
Where can I download deCoda crack for free?
The release circulates as a crack and a repack, typically packed as .rar or .iso, and the macOS build is listed under AU crack and .dmg crack searches.
Is there a working serial key or keygen for deCoda?
A working serial key is the string most often typed with the name, and keygen and serial key searches are common for the Windows build, listed as x64 crack and x86 crack.