DataWeave Studio.
Write, run and debug DataWeave 2.0 transforms locally — no 2 GB Anypoint Studio, no broken online playground. Context-aware autocomplete, visual message flows, real secure-property decryption and a 300+ function reference. Run it as a standalone desktop app, or right inside VS Code — no installer, no admin rights.
Everything the playground
should have been.
A compact, correct DataWeave workbench built to sidestep Anypoint bloat — not a watered-down web toy.
The whole engine, right inside VS Code
No desktop installer fighting your company's IT policy, no admin rights, no "unknown publisher" prompt. The full DataWeave 2.11 engine ships as a VS Code extension — install it from the Marketplace and get the same autocomplete, secure tools and live playground in the editor you already work in.
Install from the VS Code Marketplace →Interactive message-flow designer
Drag connectors onto a canvas, set payload contexts, map HTTP and database steps, and debug chained Mule elements — the structure of a real flow without spinning up a runtime.
Monaco script engine
Context-aware signature suggestions, syntax colouring and bracket pairing for DataWeave 2.0, with inline error warnings as you type.
300+ function index
The complete function reference, searchable and offline, docked right in the workspace. No tab-switching to the docs.
cURL importer & secure encryptor
Paste a raw curl string and get a configured connector call with parameters filled in. Plus fully local secure-property encryption that matches Mule's secure-properties-tool — the key never touches disk.
Bundled DataWeave engine & JRE 17
Works the moment the installer finishes. Ships with JRE 17 and the native Mule runtime engine — no system PATH, no JDK setup, no global config to break.
Dark & paper themes
Switch between a high-contrast dark space and a clean paper-light layout to match the rest of your environment.
See it in motion.
Fast, visual surfaces for building and inspecting transforms. Click any frame to expand.
Two ways to build.
Write transforms directly, or model them visually — then step through and ship.
Script mode
Draft transforms directly with compiler-backed autocomplete and compile instantly against real input.
Flow canvas
Chain elements in sequence, modelling input/output properties and payload routing with drag-and-drop connectors.
Step debugger
Walk the pipeline node by node — inspect variables, header metadata and intermediate output states in order.
Workspace sync
Save configurations as lightweight project packages. Resume later or hand them to a teammate instantly.
Get DataWeave Studio
Open source and fully local — payloads never leave your machine. Two ways to run it: as a VS Code extension or a standalone desktop app.
No installer, no admin rights, no code-signing prompt — the easiest way onto a locked-down work machine. Always the latest on the Marketplace.
Standalone build for Windows, macOS & Linux. The installers aren't code-signed yet, so your OS may warn about an "unknown publisher" on first launch — that's expected: choose More info → Run anyway on Windows, or right-click → Open on macOS.