BX Tools — Monster Database

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Searching Monsters

Use the filter controls to narrow the monster list by name, type, HD range, terrain, special abilities, or Person status. All filters combine — results update as you type or change selections.

View opens the monster in the Monster Detail tab. Disable greys out a monster so it is excluded from future Encounter tools — disabled monsters remain visible in search results.

Monster Detail

Displays all fields for the selected monster. Calculated fields (hp, THAC0, Saving Throws, XP) are shown read-only and update automatically when HD or Save As changes. Use the stat block panel to export or copy the full stat block in text, HTML, or BBCode format.

Monster Source Files

Monster data is stored in CSV files under tables/monsters/. Each file is one ruleset or setting. Select which sources are active on the Source Data tab — all checked sources are merged into the monster pool.

Source files ship with the SCK and are cached offline after your first visit. To add a new source, place a correctly formatted CSV in tables/monsters/ and add an entry to MD_SOURCES in monster-database.js.

Saving Changes

Monster edits and new monsters are stored in your browser's localStorage — nothing is sent to any server. Use Export CSV on the Monster Detail tab to download a copy of the full monster pool, which you can use to replace a source file.

Editing a Monster

Open any monster via the View action in search results or the Monster Detail dropdown. Edit any field except the calculated ones (hp, THAC0, Saving Throws, XP). Click Update Monster to save your changes — edits are stored in your browser and survive page reloads.

Adding a New Monster

Open any monster, make your changes, give it a new name, then click Add as New Monster. The new monster appears in search results immediately.

Reset to Source

Reverts a monster to its original source CSV data for this session. If you have an uploaded CSV active that contains this monster, Reset to Source is session-only — the uploaded version will win again on next page reload. To make the revert permanent, also click Remove from Uploaded CSV.

Saving Changes Between Sessions

Go to the Source Data tab and click Export Changes CSV to download all your edits and new monsters as a single CSV file. Save it locally. On your next session (or a new device), upload it via Upload CSV to restore your changes. Only one uploaded CSV is active at a time — uploading replaces the previous file.

Results

Name	HD	Type	Terrain	Special Abilities	XP	Actions
Loading monster data…

— Per page:

Monster

Monster Detail

Select a monster from the dropdown above or the Search tab.

Stat block appears here once a monster is loaded.

Generate Encounter

— select a monster from Search to begin

Dungeon Level

Treasure & Magic Item Tables

expand to change source tables

Treasure is generated using the tables selected below. These settings are independent of the Treasure Types tool.

Table selection will be available in a future update.

Select a monster from Search and click an encounter type above to generate an encounter.

Session History

0 entries

Monster	Type	Count	Total XP	Actions
No history yet.

Source Data

Select which monster lists are active. All checked sources are merged into the search pool. Changes take effect immediately — the page will reload the data.

My Changes

Upload a CSV to override or add monsters. Export your current changes as a CSV to save locally and re-upload in future sessions. Only one uploaded CSV is active at a time — uploading a new file replaces the previous one.

Upload CSV

Note: If you have changes from multiple sessions, merge them manually in a spreadsheet before uploading. The uploaded CSV uses the same column format as the source files.