BlueprintReview

BlueprintReview user guide

BlueprintReview opens Unreal Engine Blueprints (.uasset files) without the editor. You can read their graphs, variables, components and defaults, search them, copy nodes into the editor, and compare two versions side by side, from your desktop, from git or Perforce, or in a GitHub pull request.

A Blueprint open in BlueprintReview: Components and My Blueprint on the left, the graph in the middle, Details on the right

What it opens

  • Uncooked editor assets saved by UE 4.26, 4.27 and 5.0 to 5.8: Blueprints (actors, components, game modes, function libraries, interfaces, macros), and user-defined enums, structs and data tables.
  • Not cooked assets from a packaged game: cooking strips the graphs, so there is nothing left to show.

BlueprintReview only reads files. Nothing you open is changed, uploaded or sent anywhere.

Start here

  1. Install BlueprintReview on Windows.
  2. Get the sample project: a small coin collector with a history made for these guides. Every page below has a Try it on the sample section that uses it.
  3. Open and browse a Blueprint.

Everyday tasks

I want to… Page
Read a Blueprint or a whole project Open and browse
Find where a variable, function or node is used Search
Paste nodes into the editor or blueprintue.com Copy nodes
See what changed between two versions Compare two versions
Review a commit or a branch Review changes in git
Review a changelist Review changes in Perforce
See how an asset changed over time Time-lapse
Review Blueprint changes in a pull request Review pull requests
Send a diff to someone without BlueprintReview Share a diff
Change Blueprints from a script or an AI agent (experimental) Your first edit plan

Two versions of a function side by side: the removed nodes outlined in red, the added one in green, the list of changes on the left

Lite and Pro

BlueprintReview has two editions. Lite is free: it opens and searches Blueprints, copies nodes, and shows a diff as a report. Pro adds the interactive side-by-side diff, Time-lapse, and the blueprintreview diff and blueprintreview render commands. A new install runs as Pro for 14 days. Pages mark what needs Pro; Editions and licenses has the details.

Help