Free weight recording software | Data logger

Simple Data Logger (SDL) writes the weight from your scale or balance to a file on your PC (with date and time). It can also be used with other measuring instruments, bar code readers, etc. sending data in ASCII format.

Connect your scale

1. Connect your scale

Connect your scale or balance to your PC. SDL supports RS232, USB (virtual COM port), Bluetooth SPP and TCP/IP (Ethernet, WLAN) connections.

Record the weight

2. Record the weight

Our software writes the weight sent by your scale to a CSV file. If required, it adds the date and time to each line. The Plus version can also combine multiple received lines into one row (e.g. the weight, count and piece weight sent by a counting scale).

Open in Excel, Google Sheets

3. Process in Excel, Google Sheets, etc.

You can easily open the file in Excel and other spreadsheet applications for processing and visualization.

Consult our documentation for further information on how to use Simple Data Logger.


SDL can be used for free for personal, non-commercial purposes. A license is required for all other purposes or to use Plus features. Paid licenses are currently available at a 30% “early adopter” discount. If you require a trial license, please contact us.


  • Data sent by your device (e.g. a scale, balance, serial bar code reader, etc.) has to be in ASCII format.
  • SDL can only capture one number (e.g. the weight) from each line of data sent by your device (or it can capture the entire line without formatting it).
  • SDL cannot connect to more than one device at a time.

If Simple Data Logger is too simple for your application, please have a look at our comparison page which contains links to similar software.


Hardware Requirements

Processor: 1 GHz
RAM: 512 MB
Disk space (including .NET framework): 4.5 GB

Supported operating systems

SDL requires .NET framework 4.7, which can be installed on the following operating systems: Windows 10 (Anniversary Update or later, 32-bit and 64-bit), Windows 8.1 (32-bit and 64-bit), Windows 7 SP1 (32-bit and 64-bit), Windows Server 2016 (64-bit), Windows Server 2012 R2 (64-bit), Windows Server 2012 (64-bit), Windows Server 2008 R2 SP1 (64-bit).