Save the console.log in Chrome to a file

Question

Does anyone know of a way to save the console.log output in Chrome to a file? Or how to copy the text out of the console?

Say you are running a few hours of functional tests and you've got thousands of lines of console.log output in Chrome. How do you save it or export it?

Answer 1

There is another open-source tool which allows you to save all console.log output in a file on your server - JS LogFlush (plug!).

JS LogFlush is an integrated JavaScript logging solution which include:

• cross-browser UI-less replacement of console.log - on client side.
• log storage system - on server side.

Demo

Answer 2

There is an open-source javascript plugin that does just that, but for any browser - debugout.js

Debugout.js records and save console.logs so your application can access them. Full disclosure, I wrote it. It formats different types appropriately, can handle nested objects and arrays, and can optionally put a timestamp next to each log. You can also toggle live-logging in one place, and without having to remove all your logging statements.

Answer 3

I have found a great and easy way for this.

1. In the console - right click on the console logged object

2. Click on 'Store as global variable'

3. See the name of the new variable - e.g. it is variableName1

4. Type in the console: JSON.stringify(variableName1)

5. Copy the variable string content: e.g. {"a":1,"b":2,"c":3}

6. Go to some JSON online editor: e.g. https://jsoneditoronline.org/

Answer 4

A lot of good answers but why not just use JSON.stringify(your_variable) ? Then take the contents via copy and paste (remove outer quotes). I posted this same answer also at: How to save the output of a console.log(object) to a file?

Answer 5

Good news

Chrome dev tools now allows you to save the console output to a file natively

1. Open the console
2. Right-click
3. Select "save as.."

Chrome Developer instructions here.

Answer 6

I needed to do the same thing and this is the solution I found:

1. Enable logging from the command line using the flags:

   --enable-logging --v=1

   This logs everything Chrome does internally, but it also logs all the console.log() messages as well. The log file is called chrome_debug.log and is located in the User Data Directory.

2. Filter the log file you get for lines with CONSOLE(\d+).

Note that console logs do not appear with --incognito.