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Attach OnLoad/OnSave/OnChange scripts to any Dataverse form directly from the browser, without the maker portal form editor. D365 Script Devtool lets you attach, edit, and manage JavaScript event handlers on any Dynamics 365 / Dataverse form — directly from the browser, without ever opening the Power Apps maker portal's form editor. KEY FEATURES Attached scripts at a glance See every script already wired to the current form, grouped by OnLoad, OnSave, and OnChange. A "custom" filter hides Microsoft's own first-party handlers by default, so you only see what you or your team added. Full script editor, right in the browser Create a new script or edit an existing one with a syntax-highlighted code editor supporting JavaScript, CSS, HTML, XML, and RESX. Publish updates a web resource and wires the event handler in one action — no separate steps in the maker portal. Attach to an existing web resource Point a new event at a function that already lives in another web resource without touching its content — search by name, select it, done. Field reference and autocomplete Look up any field on the form to see its type, required level, format, OptionSet values, or Lookup target entity types, then insert a ready-to-use code snippet at your cursor with one click. Solution and publisher aware Create new scripts under the publisher and solution of your choice, so your customizations land where they belong from the start. Dark and light themes Switch instantly, with your preference remembered across sessions. Click-to-show panel The panel stays out of your way until you need it — click the toolbar icon to show or hide it. HOW IT WORKS The extension uses your existing, already-authenticated Dynamics 365 session to call the Dataverse Web API directly. Nothing is sent to any third-party server — all reads and writes happen only within your own connected environment. IMPORTANT NOTE This tool writes directly to your environment's unmanaged customizations. Treat it as a development accelerator for sandbox and development environments, and export a proper solution through your normal ALM process when you're ready to promote changes to test or production. Built for Dynamics 365 / Dataverse developers and consultants who want a faster iteration loop for client-side scripting.
Aug 25, 2026
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