The General tab allows you to configure various settings for S3 Browser,
including software updates, file transfer settings, and permissions.
S3 Browser General Options
General
Automatically check for software updates - If this option is enabled, S3 Browser will
automatically check for software updates on startup. If a new version is available, you will be
prompted to download and install it.
Click here
to learn more about the data sent during the new version check.
File transfer settings
Enable multipart uploads with part size (in megabytes) - If this option is enabled, large files
will be uploaded using multiple parallel threads for faster performance. You can specify the part size
in megabytes. The default value is 8 MB.
Enable multipart downloads with part size (in megabytes) - If this option is enabled, large files
will be downloaded using multiple parallel threads for faster performance. You can specify the part size
in megabytes. The default value is 100 MB.
Overwrite options for existing files
Overwrite options for existing files - This setting allows you to configure how S3 Browser handles
files with the same name that already exist in the destination. You can choose from the following options:
Show confirmation dialog - Prompts you to confirm the action for each file when a
file with the same name already exists in the destination.
Overwrite (replace the file in the destination) - Replaces the existing file in
the destination with the file being transferred.
Skip (do not overwrite, keep existing file) - Leaves the existing file unchanged
and skips transferring the file.
Rename (keep both files, rename the new file automatically) - Saves the file with
a unique name in the destination to avoid overwriting the existing file.
Permissions
The options in this section may require additional configuration for buckets created after April 2023 to work correctly.
Click here for more information.
Inherit permissions from parent bucket - If this option is enabled, files uploaded will inherit
the permissions (ACL) of the parent bucket.
Preserve permissions when overwriting existing files - If this option is enabled, S3 Browser will
maintain the permissions of the existing files during uploading or copy/move operations.
When this option is enabled, an extra request is sent to Amazon S3 for each file to retrieve the existing
file's permissions before overwriting it. This may increase the number of requests sent to Amazon S3 when
uploading or copying large numbers of files.
Proxy
The Proxy tab allows you to configure proxy server settings to connect to Amazon S3.
This is useful if your network requires a proxy server for internet access.
S3 Browser Proxy Options
Proxy
Select the proxy connection type from the dropdown menu. Options include:
Do not use proxy (direct connection) - S3 Browser will connect to Amazon S3
directly without using a proxy server.
Autodetect proxy settings - S3 Browser will automatically detect and use the
proxy settings configured on your system.
Use proxy settings below - Allows you to specify custom proxy server settings manually.
Address - Enter the IP address or hostname of the proxy server.
Port - Enter the port number used by the proxy server. The default value is 8080.
My proxy server requires authentication - Check this option if your proxy server requires a username
and password for authentication.
Username - Enter the username required for proxy server authentication.
Password - Enter the password required for proxy server authentication.
Domain - Enter the domain name if required for proxy server authentication. This field is optional.
Bandwidth Throttling
The Bandwidth Throttling tab allows you to limit the transfer rate for uploads and downloads.
This feature can help prevent S3 Browser from consuming all available bandwidth, ensuring other
applications or services on your network remain functional.
S3 Browser Bandwidth Throttling Options
Bandwidth Throttling
Enable bandwidth throttling with max transfer rate per thread (KB/s) - Check this option to enable
bandwidth throttling. You can specify the maximum transfer rate (in kilobytes per second) for each active thread.
Total bandwidth usage depends on the number of active threads. For example, if you set the maximum transfer rate
to 32 KB/s and have 4 active threads, the total bandwidth usage will be approximately 128 KB/s.
Data Integrity
The Data Integrity tab allows you to enable checks to ensure data is not corrupted during uploads or downloads.
This helps
maintain
the integrity
of your files when transferring them to or from Amazon S3.
S3 Browser Data Integrity Options
Data Integrity
Check data integrity during file upload - Enable this option to ensure data is not corrupted during upload.
This may take additional time. The SHA256 hash will also be recorded in the metadata for data integrity checks during download.
Check data integrity during file download - Enable this option to ensure data is not corrupted during download.
This may take additional time.
Data Integrity Check Mode for Downloaded Files
Choose the mode for handling downloaded files:
Flexible - Treat files with missing or invalid hashes as valid.
Strict - Treat files with missing or invalid hashes as corrupted.
Click here to
learn more about data integrity checking.
Queueing
The Queueing tab allows you to configure the maximum number of concurrent tasks for uploads,
downloads, and other operations. These settings help optimize resource usage and performance
during file transfers.
S3 Browser Queueing Options
Queueing
Maximum number of concurrent uploads - Set the maximum number of uploading tasks that can run
simultaneously. The default value is 8.
Maximum number of concurrent downloads - Set the maximum number of downloading tasks that can run
simultaneously. The default value is 8.
Maximum number of other concurrent tasks - Set the maximum number of other tasks, such as file
deletions, permission changes, and similar operations, that can run simultaneously. The default value is 8.
The Free version of S3 Browser allows up to two concurrent uploads or downloads, which may limit your ability to
fully utilize your network speed. Upgrading to the Pro version unlocks unlimited concurrent transfers, enabling
faster and more efficient file uploads and downloads.
Upgrade to Pro today to experience the full potential
of your broadband connection!
Interface
The Interface tab allows you to configure system tray behavior,
performance optimization settings, and the application color theme.
S3 Browser Interface Options
System Tray
Always show S3 Browser icon in system tray - Check this option to keep the S3 Browser
icon visible in the system tray at all times.
Minimize to system tray - Check this option to hide S3 Browser to the system tray when minimized.
Performance Optimization
Enable bucket pagination with page size - Check this option to paginate bucket
listings based on the specified page size. The default value is 1000.
Limit items in version listings to - Check this option to limit the number of
items in version listings to the specified value. This is useful for managing or deleting
large quantities of file versions efficiently. The default value is 10,000.
Limit the max file size for Preview (MB) - Check this option to set a maximum file size
limit (in megabytes) for downloading files for preview. The default value is 100 MB.
Color Theme
Choose the color theme for the application:
Light - Use the light theme.
Dark - Use the dark theme.
System - Automatically match the system theme.
Changing the theme requires restarting the application to take effect.
Logging and Error Handling
The Logging and Error Handling tab allows you to configure how logs
are recorded and how failed tasks are retried in S3 Browser.
S3 Browser Logging and Error Handling Options
Logging
Save event log to file - Check this option to save all log messages to a log file.
You can view log files by clicking the view log files link.
Remove log files older than (days) - Check this option to automatically delete log files
older than the specified number of days. The default value is 30 days.
Verbosity level - Choose the detail level of log entries:
Verbose - Detailed log entries.
Brief - Summarized log entries.
Errors and Warnings Only - Logs only errors and warnings.
Error Handling
Maximum retry attempts for failed tasks - Specify how many times a task should be retried
after a failure. The default value is 3.
Delay (in seconds) between retry attempts - Specify the wait time (in seconds) before
retrying a failed task. The default value is 1 second.
Advanced
The Advanced tab allows you to configure advanced settings
for file system behavior, security, and power management.
S3 Browser Advanced Options
File System
Folder for temporary files - Specify the folder to store
temporary files during compression or encryption.
Check for free drive space before downloading a file - If enabled,
S3 Browser will check for free drive space before downloading a file.
Allow parallel disk access for hashing and encryption - Enable this
option only for SSDs. It is not recommended for HDDs or network drives.
Security
Bypass SSL/TLS validation (program restart required) - Disable certificate
validation to ignore validation errors and trust all certificates.
Power Options
Prevent computer sleep if there are any active tasks - Prevent the computer
from going to sleep if there are active tasks in S3 Browser.
Prevent display off if there are any active tasks - Prevent the display from
turning off if there are active tasks in S3 Browser.
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