Comparison
GameFractal Character BuildervsBG3 Compendium
Two BG3 planners handling inventory in opposite ways: deep catalog with overlay vs organization with notes and sets. When each one wins.
Verdict
GameFractal if you want a deep item catalog and an in-game overlay. BG3 Compendium if you want to organize the build with notes and inventory sets in a minimalist UI to reread later.
Side-by-side
| GameFractal Character Builder | BG3 Compendium | |
|---|---|---|
| Free | Yes | Yes |
| Open source | No | No |
| Official | No | No |
| Type | Web App | Web App |
| Platforms | Web, Windows | Web |
| Difficulty | Beginner | Beginner |
| License | — | — |
| Source | — | — |
| Verified | June 10, 2026 | June 10, 2026 |
Which to use for what
- Planning around a large catalog of items and boonsBetter pick: GameFractal Character Builder
GameFractal integrates a deeper gear catalog into the build process.
- Keeping the build as an overlay on top of the gameBetter pick: GameFractal Character Builder
GameFractal's Overwolf app offers an in-game overlay; Compendium is web-only.
- Documenting the build's reasoning with notesBetter pick: BG3 Compendium
Compendium's notes panel is built to record why you assembled the build that way.
- Working in a clean, uncluttered UIBetter pick: BG3 Compendium
Compendium prioritizes a minimalist interface; GameFractal's catalog adds density.
- Avoiding installing extra software like OverwolfBetter pick: BG3 Compendium
Compendium runs only in the browser; GameFractal's overlay requires the Overwolf platform.
GameFractal Character Builder and BG3 Compendium agree on something EIP sets aside: both integrate inventory into build planning. But they do it with opposite philosophies. GameFractal leans into a large item catalog and an in-game overlay; Compendium leans into organizing and documenting the build in a minimalist UI.
Deep catalog vs clean organization
GameFractal integrates a broad catalog of items and boons into the build process. If your build depends on concrete pieces — common in BG3, where gear defines whole archetypes — seeing those items folded into the build is its main advantage. The cost is density: the catalog adds power but also visual noise.
Compendium goes the other way. Its minimalist UI organizes the build into tidy sections, with inventory sets to separate gear by stage and a notes panel to document the reasoning. It doesn't have as deep a catalog, but it keeps a complex build legible and easy to pick back up.
The overlay vs pure browser
GameFractal exists as an Overwolf app, giving it an in-game overlay: the plan on top of the game without alt-tabbing. For someone executing a long build, it's convenient. The downside is it requires installing Overwolf, with the extra software and telemetry that implies.
Compendium runs only in the browser. It offers no overlay, but it also doesn't ask you to install anything. If avoiding extra software is a priority, that simplicity counts.
When each one wins
| Case | Better option |
|---|---|
| Planning around a large item catalog | GameFractal |
| Build overlay on top of the game | GameFractal |
| Documenting the reasoning with notes | BG3 Compendium |
| Clean, minimalist UI | BG3 Compendium |
| Avoiding installing software like Overwolf | BG3 Compendium |
Recommendation
These are two ways of taking inventory seriously. GameFractal wins if the build revolves around concrete gear and you value the overlay; Compendium wins if what you want is a documented, orderly build that's easy to reread without installing anything. For loot-driven optimization, GameFractal; for keeping and understanding your builds over time, Compendium. Each tool has its full analysis in the codex.
Character builder with an item and boon catalog, shareable links, and an optional in-game overlay
View GameFractal Character BuilderClean-UI planner to build your character, plan inventory sets, and save build notes
View BG3 Compendium