Modx3ProfilerToolbar

MODX 3 extra: lightweight profiler with Frontend Dev Toolbar — request metrics, slow components, timeline and SQL. No admin UI, no trace storage, no debug report.

Features

• Frontend Dev Toolbar — panel in bottom-right: time, memory, snippets, SQL. Click for tabs: Overview, Slow Components, Timeline, SQL. Localization (ru/en/uk).
• MODX Pipeline — MODX events (OnHandleRequest, OnLoadWebDocument, OnWebPagePrerender), snippets, chunks, plugins, SQL.
• Advisor — optimization hints: uncached snippets, N+1, slow queries, chunk overload.
• Production-safe — sampling (1–100%), toolbar only when logged into Manager; overhead < 5%.

Limitations

pdoTools 3.x: Fenom snippets and pdoTools snippets (msProducts, pdoResources, etc.) in MODX 3 are not profiled in detail. See pdoTools limitations.

What works: MODX events, SQL, memory, total time, standard [[!Snippet]] tags (partially).

Requirements

Requirement	Version
MODX Revolution	3.x
PHP	8.1+

Admin and VueTools are not required.

Installation

1. Go to Packages → Installer (Extras → Installer).
2. Find Modx3ProfilerToolbar (Performance Toolbar).
3. Click Install.

Next steps

See Quick start and Frontend Dev Toolbar.