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Logcat Extreme

Logcat Extreme is an enhanced Logcat/Dmesg reader and Logcat recorder which comes with a rich set of features and handy user interface.
Please note: From Android 4.1 onwards ANY logcat app needs root access in order to show logs properly.

New user interface (update 1.5):the UI has been dramatically improved, again. Now more polished, user friendly, pure material design. All with the aim to bring a top quality app for your logcats.

Introducing "Floating Logcat" (update 1.1):a new wonderful feature powered by StandOut, it allows you to keep the logcat on top right while you're working on your device, perfect for your tests! the logcat is shown inside a window you can move, resize and even minimize, just like a desktop one.


* Read live logcat
* Pause and resume
* Record (even in background)
* Send logs via mail
* Apply filters (priority level, format, etc.)
* Search box for quick filtering
* Many options to configure the logcat
* Read the kernel's debug messages (dmesg)
* Intuitive controls to access all the features with easy
* New "Per-app Logcat" feature!
* Revolutionary "Floating Logcat" feature!
* Floating window resizable even with pintch-to-zoom

Notes:
- In order to start a new Floating Logcat session tap the last button on the right (bottom bar).
- In order to resize the Floating Logcat drag the bottom-right corner of the window.

Devs corner:

Starting from version 1.3, devs can use intent actions and extras in order to launch thelogcat recorder directly from their apps:

"scd.lcex.ACTION_REC" start recording

"scd.lcex.ACTION_STOP" stop recording and service associated

"scd.lcex.EXTRA_FILTER" logcat filter (string, optional), use in conjunction with ACTION_REC

Category : Tools

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Reviews (26)

jac. s. Aug 16, 2019     

i think something is broken in latest update, no logs are showing or being saved. no idea if it's error on my side but previously on a different rom it was working great & the record logs (auto saves in a file) option really helped a lot when had to capture logs of device restarting at a specific event.

A. G. u. Dec 30, 2018     

This app is an invaluable tool. I have used it many times to diagnose and fix hundreds of apps and Android system problems where nothing else would provide me with any information to work with. Also it is the best of its kind that I have found after testing a dozen. Then I bought the Pro version to support its development. Thanks dev for creating it and keep up the good work !

Tom. S. Jun 7, 2019     

PLEASE READ REVIEW: Jacques Bertrand 24/09/2018 Works great. This should be added to the app's description: if you don't have root, connect to computer & copy/paste this in adb: adb shell pm grant scd.lcex android.permission.READ_LOGS 1 people found this helpful

Jac. B. Sep 24, 2018     

Works great. This should be added to the app's description: if you don't have root, connect to computer & copy/paste this in adb: adb shell pm grant scd.lcex android.permission.READ_LOGS

Dav. M. Jan 12, 2020     

It's pretty good but truncates longer errors which makes it pretty useless for debugging apps on device.

tom. d. Aug 16, 2019     

Bestest Logcat app!!! You can't go wrong! Had others... However, have had THIS app for few years, because it is the BEST one out there!

Wes. K. Oct 12, 2019     

This is the best logcat app I've come across. Makes diagnosing issues directly on your device super convenient!

Jer. B. M. Dec 22, 2021     

Cant handle main logs. It freezes. Unusable. :/ ui is inconvenient.

Jus. b. Dec 25, 2019     

Blank screen on opening, completely unresponsive. Rooted Samsung Galaxy S5 Neo running Nougat.

Dev. B. May 2, 2020     

Really very helpful. But I am unable to grant read logs righta in MIUI 11 (Redmi Note 8 Pro)

Kyl. V. Oct 17, 2018     

Doesn't do anything? Log is constantly empty. Dmsg shows, but isnt live.

pho. A. Apr 22, 2020     

Crashes every single time I try to view the log.

-. Dec 26, 2020     

Freezes a few seconds after opening

Fed. P. Sep 19, 2018     

I can't see dmesg log. It says syslog_read denied

Alv. W. J. Jan 1, 2019     

Needs to be updated. Im running api 28.

Lau. L. Mar 24, 2022     

Love this app for figuring stuff out

And. Nov 29, 2020     

Opens and doesn't respond/crashes

Ham. M. Feb 23, 2021     

Best app for read logcat

Aar. N. Jan 15, 2020     

Always a go-to

Tro. D. Sep 1, 2017     

I was beginning to give up on useful tools to help develop directly on my tablet! Because of health reasons, I cannot sit at my PC for long periods of time. I write using AIDE, then do my final compiles on my computer. This app has been the greatest help of any other tool I've used (not just log readers). Thanks SCDevs! I especially like the ability to call the app from my code. Logcat Extreme is nothing short of awesome! Keep it up. I look forward to new, innovative features. Now, I'm off to buy the paid version.....

Ali. A. Nov 28, 2016     

I am working on multiple devices and debugging the app in the IDE is a nightmare. Thr floating mode just makes this so useful!

Spe. M. Dec 10, 2016     

The clear action does not work from the floating button

A. G. u. Nov 17, 2017     

Floating logs opens, then closes instantly on my galaxy s7 edge

積丹尼. D. J. Jun 3, 2017     

Cannot copy individual messages.

Pit. L. Mar 12, 2018     

Does what it says.

Dev. H. Nov 29, 2015     

but it would be a lot better if we could enable merged logs like CatLog. So view Radio and System logs together.