KLS Backup 2025 is a powerful backup and synchronization program designed to safeguard your data. It allows you to backup or synchronize your important files to local and network drives, various cloud storage platforms, CD/DVD media, WebDAV, or FTP servers. The backup files can be stored either uncompressed or compressed using standard Zip or 7-Zip formats, providing flexibility for storage and accessibility.

Beyond basic file and folder backups, KLS Backup 2025 extends its capabilities to include data from local drives, network locations, and cloud storage. It can also backup databases (such as Microsoft SQL Server and MySQL), mailboxes, and other application-specific data like user profiles. With advanced version management, you can quickly find and restore any backup version, while its synchronization feature ensures the contents of two different folders are easily kept in sync.

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Power User Guide

Configuring Google Cloud Interoperability API Project ID

Open KLS Backup 2025 and navigate to Tools > Options.
In the Options window, select the Cloud section from the left-hand menu.
Choose the Google Cloud Storage provider from the list of cloud services.
Locate the setting for Interoperability API and enter the specific Google Project ID.
Click OK to save the new cloud configuration settings.

How This Would Help: Specifying the Google Project ID is necessary for advanced users leveraging the Interoperability API for Google Cloud Storage, ensuring proper authentication and billing for backup operations. This configuration is crucial for large-scale, enterprise-level cloud backup deployments.

Quick Start: Creating Your First Backup Profile

Launch KLS Backup 2025 and navigate to the main workspace.
Click on New Profile or use the wizard to start creating a new backup profile.
Select the data you wish to back up, such as specific files, folders, or application data.
Define the backup destination, choosing from local drives, network locations, or cloud storage services like Google Drive.

How This Would Help: Setting up a backup profile is the foundational step to securing your data. It defines what data is included and where it will be stored, ensuring your critical information is protected from loss.

Configuring Backup Type and Compression Settings

Within your backup profile’s properties, go to the Backup Type and Versions tab.
Choose your preferred backup type: Full, Incremental, or Differential to optimize storage and recovery.
Navigate to the Storage and Security section to adjust compression settings.
Select a compression level (e.g., Normal or Best) and encryption options (like AES) to secure your archives.

How This Would Help: Optimizing backup type and compression significantly impacts storage efficiency and backup speed. Encryption adds a crucial layer of security, protecting your sensitive data from unauthorized access.

Download KLS Backup 2025

File size: 39.5 MB

OS support: Windows

Windows

Download Kls Backup Professional 64-bit Trial – x64

Download Kls Backup Professional 32-bit/ 64-bit Trial

Download Kls Backup Standard 32-bit Trial – x32

Technical Details

Software Name	KLS Backup 2025
Version	14.0.3.9
License	Trial
File Size	39.5 MB
OS Support	Windows
Language	English
Developer	KLS-Soft
Homepage	https://www.kls-soft.com/klsbackup/
Last Updated	May 6, 2026

System Specifications

Minimum

OS: Windows 10/11, Windows Server 2008 R2 or newer (32/64-bit)
Disk Space: 200MB free disk space for installation

Main Features

Versatile Data Backup Sources: KLS Backup 2025 supports backing up data from a wide array of sources, including local and network drives, cloud storage, SFTP, FTP, and WebDAV servers, ensuring comprehensive data protection regardless of where your files reside.
Integrated Workspace for Management: The software provides an easy-to-use yet powerful integrated workspace where all windows and panels are consolidated into a single application window, offering streamlined access to tools for browsing, viewing, editing, and managing backup sets.
Database and Application Data Support: KLS Backup 2025 goes beyond standard file backups by offering specialized support for databases such as Microsoft SQL Server and MySQL, as well as critical application data like Outlook and Thunderbird mailboxes and profiles.
Highly Configurable Profiles: Users can create highly configurable backup profiles and utilize plugins to tailor backup jobs precisely to their needs, allowing for granular control over what, when, and how data is backed up.
Diverse Backup Destinations: Backups can be stored in various locations, including local and network drives, SFTP, FTP, WebDAV servers, CD/DVD media, and popular cloud services like Microsoft Azure, Amazon S3, Google Cloud Storage, OpenStack, OneDrive, and Google Drive.
Flexible Backup Types and Security: The software supports full, incremental, and differential backups for optimized storage and recovery. It also offers robust security features, including standard Zip, Zip64, 7z compression, a custom encryption format, AES encryption, and SSL/TLS support for secure remote transfers.
Automated Scheduling and Notifications: With its built-in scheduler service, KLS Backup 2025 enables automated, unattended backup jobs. It also provides detailed backup logs and email notifications to keep users informed about backup status and any potential issues.

Installation Steps

Show Installation Steps

Installation Steps

Click the download button above to get the installer for your operating system.
Locate the downloaded file (e.g., klsbackup_pro.exe) and double-click to run the installer.
If prompted by User Account Control (UAC), click Yes to allow the application to make changes.
Follow the on-screen installation wizard to complete the setup process.

Compatibility: Compatible with Windows 10, 11, and various Windows Server editions.

Frequently Asked Questions

Is KLS Backup a free software?

KLS Backup is available as a trial version, allowing users to evaluate its features before purchasing a license. It offers different editions, such as Standard and Professional, each with varying capabilities.

What types of data can KLS Backup protect?

KLS Backup is designed to protect a wide range of data, including files and folders from local and network drives, cloud storage, databases like Microsoft SQL Server and MySQL, and application-specific data such as email client profiles (Outlook, Thunderbird).

Does KLS Backup support cloud storage for backups?

Yes, KLS Backup offers extensive support for various cloud storage services. You can back up your data to popular platforms like Microsoft Azure, Amazon S3, Google Cloud Storage, OpenStack, OneDrive, and Google Drive.

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Content Writer

8+ Years of experience

Andy Zain is a software content writer (8+ years, writing since 2015) who publishes download and install guides across major platforms and productivity categories. His goal is to help readers download the right version and install it safely using clear, up-to-date, source-backed instructions.