Read ConfigMgr & Intune Logs in Your Browser with CMTrace.dev
The Problem
Reading client logs still means installing CMTrace on every machine — or copying the files off the device first. And the moment an execmgr.log or IME log grows past a few hundred thousand lines, the classic viewer crawls. For something we do every single day, that’s a lot of friction.
Our Answer
CMTrace.dev opens any ConfigMgr, SCCM or Intune (IME) log right in your browser — 100% client-side, with nothing ever uploaded. No install, no account, no waiting.
How to Use It
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Go to cmtrace.dev (or install it as a PWA for offline use).
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Drag and drop your log file — it accepts
.log,.lo_,.txt, plus.gzand.ziparchives. -
Let the parser figure out the format. It reads the CMTrace format, legacy SCCM/ConfigMgr logs and plain text automatically.
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Use the ConfigMgr and Intune (IME) presets to jump straight to the right logs.
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Search, filter by severity, and highlight matches as you scroll. Errors and warnings are color-coded so failures jump off the screen.
The grid is virtualized, so it stays smooth even at 1M+ lines — only the visible rows are rendered.
The Real Power Move: Git-Style Compare
Drop in two logs — a good run and a failing one — and CMTrace.dev lines them up like a git diff. Added, removed and changed lines are highlighted, and you can jump straight to the first divergence. The one change that broke a deployment becomes impossible to miss.
Why This Matters
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Zero install, zero upload — safe for sensitive ConfigMgr and Intune logs, since everything is parsed locally on your device.
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Works on any OS, any machine — share a link, not an installer. Perfect for demos and remote troubleshooting.
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No more Googling error codes — Win32, HRESULT and SCCM codes are decoded in place, with one-click links to Microsoft Learn.
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A severity minimap and timeline surface error clusters and the moments that actually matter.
Pro Tip
Install CMTrace.dev as a Progressive Web App straight from your browser. It then works fully offline — just like a desktop tool, but with dark mode and no network connection required. Combine that with live tail to follow logs in real time during a deployment.
Try It Now
Open your next log without installing anything: cmtrace.dev →
It’s free, forever and you can explore a sample log before you even drop in your own.
CMTrace.dev is an independent open project and is not affiliated with or endorsed by Microsoft. CMTrace is a Microsoft tool and trademark; this is a browser-based reimplementation of that workflow.