Free OST to PST Converter - Convert OST Files Online

Key Tool Features

Transform all of your OST files to PST file format easily. If you want flawlessness, this is the best way. Forget dubious manual methods — they may corrupt your data beyond repair. Our OST to PST free Converter works on any popular OS (from Windows XP to Windows 10) and comes with the following handy features:

• Convert faster thanks to the built-in GUI with an easy-to-use interface;
• Select individual folders in the OST file to convert;
• Exclude folders you don't need in the final PST file, like Drafts;
• Handle large or multiple OST files in command line mode;
• Work offline and securely without an internet connection;
• Convert any OST file without access to the computer or email account that created it;
• No viruses and sneaky adware;
• Get data from an inaccessible OST file;
• Enjoy free lifetime upgrades;
• Choose from licenses for single personal use, single commercial use, team use, or server version.

Well-designed tools for Microsoft Outlook make conversion a cakewalk. They can handle any amount of data — even hundreds of emails — at once. Just feed them into the system and launch the transformation of the OST files. Upon completion, the result will land in the location you specified.

Our reliable tool will convert OST files to PST in no time, and you can use it free of charge! OST to PST conversion is a common need for regular Outlook users. Professional utilities are developed especially for the task, and they ensure flawless switching between the formats when users of Outlook convert OST to PST.

Check out the free trial version of this versatile OST to PST tool! Alternatively, discover the benefits of buying the license, which will cover your corporate needs. CoolUtils OST to PST Converter can be used in a commercial environment exclusively by the user who purchases a license. The license key will be sent to you by email immediately after the purchase. You can pay via all major credit cards, PayPal, or place a phone or fax order. We also support many local payment systems (QIWI, Boleto Bancario, Webmoney, Alipay).

OST to PST Converter Specifications

 

Comparison of the Formats

Microsoft Outlook uses two formats to store data. Users often need to switch between them, which makes tailor-made systems that convert OST files popular. These utilities allow hassle-free import and export. So, why are these different formats necessary, and how are they connected?

PST is the standard for different groups of mail accounts (web-based systems, IMAP, and POP3). Web-based systems also create PST files. PSTs are not linked to the Exchange Server, so they are portable. The other format requires a connection to the Exchange Server.

An OST file is a replica of the data saved on the Exchange Server. It allows you to work while disconnected and sync up the changes with the Exchange folder afterward. If the connection fails or the system crashes while you are composing emails, an OST file appears. This allows you to rescue the data and use Outlook offline. Thanks to the OST file, you can retrieve Outlook data after interruptions. Sometimes, these files become unobtainable via Microsoft Outlook, which disrupts work. In an office environment, such situations are particularly frustrating, and they require the use of an offline OST to PST converter.

OST files, on the other hand, may only be opened by the same system that created them. They store information on your hard drive and work in unison with PST data. Thus, system migration becomes the most fundamental motivation to convert from OST to PST. Here is a comparison of the file formats:

Table of comparison: OST vs. PST

	OST	PST
Description	An offline file created by Microsoft Outlook and Exchange Server to store data in offline copies	A Personal Storage Table format created and exported in Outlook to store copies of messages, calendar events, contacts, and other information
Main Purpose	To allow users to read, reply, compose, and view emails even when they are offline	To archive and backup Outlook data and allow users to transfer data from one system to another quickly
Associated programs	Exchange Server Outlook 365, Exchange, or IMAP accounts	Microsoft Outlook Versions, Office 365
Developed by	Microsoft Corporation	Microsoft Corporation
Initial release	1997 (as part of Exchange Server 5.5)	1997 (as part of Outlook 97)

 

Why Change from OST to PST Format?

One may transform data into different formats easily using Total Outlook Converter. So, why convert from OST to PST? Reasons vary, but professional utilities will handle the task regardless of its purpose. Typical situations for the conversion include the following:

1. The Exchange server malfunctions, which makes the use of OST impossible unless you convert OST to PST;
2. The above-mentioned server is under maintenance, which also makes OST data unobtainable without conversion;
3. Connection to another Exchange Server due to workplace change: OST files may only be opened by the system that created them, so you need to initiate the file conversion;
4. Migration of data requires the conversion of one or multiple OST files to PST format;
5. Recovery of information: Through immaculate conversion, you can even restore data deleted from the Exchange Server;
6. Severe corruption of source data that you can remedy with an OST to PST switch.

This conversion issue is more common than you may think. Any active user of Office 365 may need to transmute Outlook data sooner or later. In all of these cases, accurate conversion to PST format is the only way, and the best method to achieve this is with an offline OST to PST converter. While different utilities that convert OST exist, it is essential to use a professional tool that guarantees a flawless transformation and will create a new PST file properly.

Recovery Capabilities

Sometimes, your OST file in Office 365 may become corrupt, which makes its contents unobtainable from the Exchange Server. Tools designed for recovery exist, but the result is often disappointing. Instead, convert Outlook OST to PST smoothly and safely. Upon completion, all the data converted will be easily accessible. The tool will restore the folders on the Exchange Server. It will transmute files and then open the resulting doc in MS Outlook. You can retrieve different types of data easily. The tool will recreate:

• Messages,
• Attached data,
• Calendars,
• Work tasks,
• Lists of recipients, etc.

Using the professional Coolutils converter is a breeze. The user only needs to specify the source file (OST) and the destination folder. The system will then convert files and store the data in the desired directory.

How to Convert an OST File to PST Locally on Your Computer

You will be impressed by how simple the CoolUtils tool is. Despite its versatility and numerous useful features, it requires just a few clicks to convert OST to PST without Outlook. Wondering how to convert OST to PST? Here is a summary of the PST conversion process and the main steps to copy OST to PST:

1. Specify the location of the source data (OST file)
   To export OST to PST, you first need to find the source data. If you have Outlook installed on your computer, you can use the following path to easily find the location: \Users\user\AppData\Local\Microsoft\Outlook\

2. Choose the folders to extract
   CoolUtilis OST to PST Converter allows you to extract individual folders in the OST. Select the relevant items you want to extract, for instance, calendar items or email messages. The feature comes in handy when you need to export particular data, or when carrying out forensic audits, as it will filter unnecessary details.

3. Launch the conversion process
   Specify other conversion criteria, such as the destination folder. After configuring all the settings, you'll click "Start" to convert .ost to .pst. The OST file conversion begins and logs of each process that has been completed, allowing you to identify any errors. Note that the final file is in PST file format that you can import in Outlook for desktop, since it's treated as an archive file.

Even bulky OST files are converted in minutes with this OST to PST converter by CoolUtils. Upon completion, you will find the output in its destination. The tool is accurate and reliable.

Utility-assisted conversion is simply the best method for the transfer of offline OST files so far. Importantly, the free PST converter does not require an active Exchange Server connection, so you can still have an OST file converted to PST file format when it is out of order. You do not need access to the system that created the file to change OST to PST.

A step-by-step description of converting an OST file of any version and size to a Microsoft Outlook PST file

There is no reliable way to switch between the formats and convert OST manually. Steer clear of dubious advice: If you try to convert files by unproven methods, you can end up damaging OST files in Microsoft Outlook beyond repair. Some Office 365 users are unwilling to purchase an expensive OST to PST converter, particularly if they have modest volumes of data to modify. Fortunately, the most comprehensive tool to convert OST is affordable. It also comes with a free trial to let you test its capacity for 30 days. No email or credit card information is required — just download the installation file and see how quickly the tool migrates files!

Using the professional converter is a breeze. Here are the main steps to take:

1. Download the CoolUtils OST to PST Converter on this site;
    
2. Launch the setup file to install the utility on your computer;
   
    
3. Open the converter to transfer the files;
   After installing the program, launch it to convert an OST file to a PST file.
    
4. Specify the source file (OST) and the destination folder;
   
    
5. Start the conversion process;
   
   Once you have set up everything, launch the process to convert .ost to .pst file.
    
6. Check if the file has successfully landed in the destination folder;
   The conversion wizard will highlight any failures, but you can check the PST file in the destination folder to confirm if it has been transformed correctly.
    
7. Store the data in the desired directory
   That is all it takes to migrate OST to PST! You can move the file again if you need to store it or back it up, preferably on the cloud.

Give it a test drive. You can then purchase a full license of the OST to PST software if necessary. Use the tool as often as you need — every new conversion is cheaper!

Benefits of using the CoolUtils OST to PST Converter

Transform all of your OST files to PST easily. If you want flawlessness, this is the best way. Forget dubious manual methods — they may corrupt your data beyond repair. The OST to PST free Converter works on any popular OS (from Windows XP to Windows 10), and even its free trial version is efficient because:

• The utility has a built-in GUI that makes the task a piece of cake;
• Conversion takes just several clicks;
• Even beginners can handle it easily, as the program is largely intuitive;
• The OST to PST free converter guarantees the integrity of data, which is why it is used by pros;
• Even large or multiple OST files are processed in minutes;
• It allows you to recover messages and any related items from offline OST safely through OST to PST migration;
• It ensures flawless recovery of OST file contents from any computer — you do not need access to the machine where the file was created;
• It guarantees an absence of viruses and sneaky adware — the OST to PST tool is impeccable, so you get what you paid for;
• It comes with free upgrades for your desktop assistant;
• It allows a lifetime license for indefinite OST to PST conversion.

Well-designed tools for Microsoft Outlook make conversion a cakewalk. They can handle any amount of data — even hundreds of emails — at once. Just feed them into the system and launch the transformation of the OST files. Upon completion, the result will land in the location you specified.

This reliable tool accomplishes the goal in no time, and you can use it free of charge! OST to PST conversion is a common need for regular Outlook users. Professional utilities are developed especially for the task, and they ensure flawless switching between the formats. Check out the free trial version of this versatile OST to PST tool! Alternatively, discover the benefits of buying the license, which will cover your corporate needs. CoolUtils OST to PST Converter can be used in a commercial environment exclusively by the user who purchases a license. The license key will be sent to you by email immediately after the purchase. You can pay via all major credit cards, PayPal, or place a phone or fax order. We also support many local payment systems (QIWI, Boleto Bancario, Webmoney, Alipay).

FAQ

How can I convert an OST file to a PST file?

To convert an OST file to PST using CoolUtils converter:

1. Download and install CoolUtils OST to PST Converter
2. Launch the program
3. Select your source OST file
4. Choose destination folder for the PST output
5. Select which folders to include (optional)
6. Click "Start" to begin conversion

Is there a free OST to PST Converter?

CoolUtils offers a free 30-day trial version of their OST to PST Converter with full functionality. For continued use after the trial period, you'll need to purchase a license ($39.90).

Can I import an OST file into Outlook?

No, OST files cannot be directly imported into Outlook. You need to convert them to PST format first using a conversion tool like CoolUtils OST to PST Converter, then import the resulting PST file.

How much time will the conversion process take?

For most medium-sized OST files, the conversion process will be done in less than a minute.

Should I have Outlook installed to perform conversion?

There is no need to have Outlook installed to convert from OST to PST. You only need to have an OST file saved in your system.

Is an OST file the same as a PST file?

No. Key differences:

• OST (Offline Storage Table): Created by Exchange Server, allows offline work, can only be opened by the system that created it
• PST (Personal Storage Table): Standard format for mail accounts, portable, not linked to Exchange Server, can be transferred between computers