All comparisons

Engine comparison

Plugin frameworks

Which developer problem are you trying to solve?

JUCE, Cmajor and RNBO already provide substantial control, state, interface and export support. Maru's developer beta evaluates whether its shared controls, host adapters and regression checks reduce repeated work on a new effect. Browser sound or a custom interface alone is not a reason to change stacks.

Keep controls, automation and saved state consistent

A parameter change must reach the custom interface, automation, factory presets and the state a DAW restores.

What already exists

JUCE supplies parameter/state attachments; Cmajor and RNBO expose parameters and state through their host APIs. Existing product templates may already cover this work.

Where Maru may help

Maru shares descriptors with its face controls and generated host bindings, then checks declared parameter and preset contracts. Custom DSP behavior and interface placement still need authoring.

Maintain a browser demo alongside the DAW plugin

The demo needs to run the sound as well as show the interface, and product changes need to reach both versions.

What already exists

Cmajor and RNBO already export browser and native versions. JUCE supports web interfaces inside plugins; running the DSP in a browser is a separate deployment task.

Where Maru may help

Maru derives browser and native Programs from one module and packages its face for both hosts. The possible gain is the supplied integration, not an exclusive export capability.

Find regressions after a DSP or control edit

An edit compiles, but may still change audio, parameter behavior, preset recall or a saved session. A coding agent does not remove that verification work.

What already exists

JUCE projects can combine unit tests, Pluginval and release templates. Cmajor has testing tools; RNBO exports can be tested through their APIs. Compare with the checks the developer already uses.

Where Maru may help

Maru brings contract baselines, audio audits and browser/native qualification into its module workflow. Early access tests whether that combination catches faults or reduces repeated work on one supported effect.

Developer workflow comparison of Maru, raw C++, JUCE, Cmajor, RNBO, and Max/MSP
Developer jobMaruGuided module-development betaRaw C++Choose the libraries and host adaptersJUCEC++ framework with native and web interfacesCmajorDSP language with shared patch APIs and exportsRNBOMax patching with browser and native exportsMax/MSPVisual patching and performance environment
Connect custom controls and stateShared descriptors and controlsFace bindings and generated host metadata consume the module contract; product DSP and custom layout remain authored.Choose an integrationUse a parameter/state library or implement the binding in the selected host.Framework attachmentsAPVTS and native/WebView attachments connect parameters, UI gestures and saved state.Shared patch connectionEndpoint metadata, gestures, parameter updates and stored-state APIs are available to the custom GUI.Device and wrapper APIsExported parameter/preset metadata and custom native or WebView editors provide the integration path.Patcher controls and storageBuild the interaction in Max; delivery beyond its hosts follows a separate export path.
Run the sound in browser and DAWOne authored moduleJS/WASM and native Programs are derived outputs; admission and evidence are specific to each release and host.Choose both runtimesA browser DSP build and a plugin shell are separate integrations over the chosen source.Native plugin plus browser deploymentA plugin WebView shares frontend code; it does not by itself run the native DSP in a web page.Documented exportsWeb Audio/WASM and native CLAP or JUCE projects; custom patch GUI export is supported.Documented exportsWebAudio devices and native plugin targets; the current JUCE template also supports HTML/CSS/JS interfaces.Live in MaxUse Max for Live for that host, or assess RNBO/other export routes for independent consumers.
Check what an edit brokeModule-owned regression workflowContract baselines, signal audits and qualified browser/native artifact checks; selected evidence must be current.Choose the test harnessExisting C++ testing/audio tools can be integrated; coverage depends on the project.Tests and validatorsUse the project's unit/audio tests, Pluginval and templates such as Pamplejuce.Patch testing toolsThe command-line tools can test and render patches; product/host checks depend on the workflow.Test exported behaviorDrive parameters, presets and events through the exported APIs and native product's tests.Test the actual patchExercise signals, messages, storage and performance in its intended Max/Live environment.
Use a coding agentOrdinary project plus audio contractsAgent guides and shared operations exist; restricted DSP rules and validation still matter.Editable sourceAgent assistance is possible; supply the project's realtime and host constraints.Editable source and existing examplesAgents can work with C++ and web frontends; their changes still need the project's checks.Editable DSP and GUI sourceUse its language, patch metadata and validation tools; no comparative agent-success rate is established.Patch/code and exported interfacesAssess the agent's actual patch-editing workflow rather than assuming visual authoring prevents assistance.Patch and script authoringAgent assistance can operate on patch files and scripts; verify behavior in Max.
Choose whether to switchEvaluate one new effectGuided beta, limited targets and unfinished public package/release paths. No measured productivity lead.Keep a deliberate custom stackUseful when control or integration requirements justify owning the stack.Keep an established product frameworkExisting DSP, tests and shipping infrastructure may outweigh any migration benefit.Keep a working portable patchBrowser/native delivery already exists; require a specific control or verification benefit before migrating.Keep an effective patch workflowFast patching and export may already fit the job; changing stacks needs a demonstrated benefit.Keep a host-specific solutionA Live/Max performance tool need not become an independently distributed plugin.

Sources checked October 12, 2026

Explore the broader stack coverage

Coverage describes available mechanisms, not measured developer effort or release readiness. Check the exact host and artifact before relying on an export path.

Which layers each stack provides
LayerMaruJUCECmajorRNBOFaustElementary
DSP authoringCoveredCoveredCoveredCoveredCoveredCovered
Plugin formats (VST3, AU, CLAP)Partial or experimental. Native builds exist; supported formats and host qualification are specific to each release. Broad distribution remains in beta.CoveredPartial or experimentalCoveredCoveredPartial or experimental
Plugin UI kitCoveredCoveredPartial or experimentalPartial or experimentalPartial or experimentalCovered
Browser runtimeCoveredPartial or experimentalCoveredCoveredCoveredCovered
Hardware exportPartial or experimental. Builds and emulation for Pi 5, Pico 2, Daisy Seed and ESP32-S3; device qualification in progress.Partial or experimentalPartial or experimentalCoveredCoveredNot covered
Sampler / instrument frameworkCoveredPartial or experimentalNot coveredPartial or experimentalNot coveredNot covered
Composition and patternsCoveredNot coveredNot coveredPartial or experimentalNot coveredNot covered
Agent tooling (MCP, skills)CoveredNot coveredNot coveredNot coveredNot coveredNot covered
Examples and templatesCoveredCoveredPartial or experimentalCoveredCoveredPartial or experimental
Community and marketplacePartial or experimental. Publishable bank format and sharing; marketplace planned.Partial or experimentalNot coveredPartial or experimentalPartial or experimentalNot covered
  • Covered
  • Partial or experimental
  • Not covered

As of October 2026

This is a documentation and implementation comparison, not a matched productivity benchmark. Maru's public package distribution and full release qualification remain unfinished. Guided early access focuses on one effect and a limited browser/ macOS VST3 path, after its exact workflow is qualified. An existing tested framework may already solve your problem with less work.