MZIDeveloper preview
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MZI 0.8 · Developer preview

One app package.
Many ways to run it.

Package WebAssembly logic, an adaptive interface and explicit permissions into one .mzi file. A compatible host takes care of the system around it.

Try in your browser Get MZI Host

Open the working examples without an account. Native releases and mobile previews have different capability support.

FIELD NOTES / INTERFACE ILLUSTRATION
FN
YOUR APPLICATION

Field Notes

Local first

A place for the things you observe.

01
Site inspectionNotes, observations and next steps.
02
Field researchStructured records. Host-owned state.
Semantic interfaceIsolated Wasm logic
.mzi
field-notes.mziOne signed application package
✓
START WITH A WORKING HOST

Web In your browser

Windows & Linux Native downloads

macOS, Android & iOS Host previews

LESS THEORY. OPEN A PACKAGE.

See what MZI does.

Explore the catalog
FNfield-notes.mzi

OFFLINE RECORDS

Field Notes

Create and keep local records. Open the same package in a compatible browser or native host.

Local state · collectionsRun Field Notes
◷capability-clock.mzi

HOST CAPABILITIES

Capability Clock

Watch a WebAssembly Component request wall time through an explicitly approved host import.

Clock · session stateRun Capability Clock
↗capability-http.mzi

BOUNDED NETWORK ACCESS

HTTP proof

Let the host perform an approved HTTP task. The application never receives direct browser APIs.

Network · task completionRun HTTP proof

THE PACKAGE TRAVELS. THE HOST ADAPTS.

Your application logic.
The host’s native controls.

MZI describes what an application does and the interface it needs. The host renders the controls, owns local state and grants the capabilities the package is allowed to use.

How the model works
.mziThe application package
manifest.tomlIdentity & permissions
app.wasmApplication logic
interface.mzi.jsonSemantic interface
data.schema.jsonLocal data contract
SIGNATUREPublisher & integrity
Read the package specification

A CLEAR BOUNDARY AT EVERY STEP

Package. Review. Run.

Portable does not mean unrestricted. The host stays in control of the device and its data.

01

Build the artifact

Bundle logic, interface and state schema. Sign the package so a host can check its identity and integrity.

02

Review its permissions

The host checks what the package declares. You review and approve the authority needed to run it.

03

Open it in a host

The host renders the interface and executes Wasm in isolation. Available capabilities depend on that host.

FOR DEVELOPERS

From a typed starter
to your own package.

Start with AssemblyScript, build a portable application and use the CLI to validate each change. Install a compatible native host before using --launch.

Read the quickstart Open Manifest Lab ↗
QUICKSTART / NODE 20+
# Get the standalone CLI
curl -fsS https://mzi.app/downloads/mzi-cli.mjs -o mzi.mjs

# Create a typed application
node mzi.mjs init hello-mzi --language assemblyscript
cd hello-mzi && npm install

# Build and open in an installed host
node ../mzi.mjs dev . --launch

BUILT IN THE OPEN

A working preview.
A precise set of boundaries.

MZI is still a developer preview. Signing, local state and capability proofs are available today; host support and production distribution continue to evolve. Check the current implementation before choosing a target.

See project status

START WITH THE ARTIFACT

Open an app.
Explore the idea.

Try the signed Field Notes package in your browser.

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