HOW TO USE
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    Check Field Types & Schema of Any ArcGIS Feature Service

    Audit the field schema of any ArcGIS Feature Service — see field types, aliases, length constraints, nullable and editable flags. Sign in to load your own private services and keep them saved for future schema audits.

    Tutorial Get full access →
    Connected to ArcGIS Online
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    ArcGIS Online — Content tab: Go to arcgis.com → Content, click your Feature Layer item → scroll the right panel down → copy the URL ending in /FeatureServer/0
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    ArcGIS Online — Map Viewer: Open your web map → click a layer in the layers panel → ⋯ More options → View item details → Item page → URL in bottom-right.
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    Organizational AGOL: Works with personal arcgis.com accounts and organizational portals (yourorg.maps.arcgis.com). URL format: https://services.arcgis.com/{orgId}/arcgis/rest/services/{name}/FeatureServer/0
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    Not sure which layer? Use the free REST Explorer → — paste your org URL and browse all your Feature Services visually.
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    CONNECT
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    CONFIRM
    My Saved Services
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