Top 5 Free Online File Converter Tools in 2021


Free Online File Converter: If you wish to have any documents protected yet in a professional manner for different uses you can choose to use a free online converter.

There was a time when people used to download or purchase software applications to convert different files to a PDF format.

However, this is not necessary anymore as there are simpler ways in which this can be done.

Best Free Online File Converter

You would not have to spend a dime to be able to convert your sensitive information into the PDF (Portable Document Format) format when you choose to use a free file converter.

Best Free Online File Converter in 2021

There are numerous websites that allow for you to have a file converted from or to a PDF file.

We look at some of these top websites that you can choose to use and the pros and cons involved in using them. This would allow you to choose the best from the list below.

#1. OnlineConvertFree.Com

This website offers people some of the easiest ways in which a file can be converted from one format to another.

You can simply drag and drop the file onto the space provided or click on browse to select a file from your computer to use this online converter.

The services offered by this website is free and you can upload up to 2 files on it. If you choose to have more files converted you might have to choose a plan to do the same.

The service is fast and the converted file can be downloaded with a click on your computer.


  • Easy upload and download of converted files
  • Almost all files can be converted to any format of your choice
  • No need to provide personal details like email
  • Offers cheap membership rates with 3 plans with no ads


  • Free service limited to 2 files per conversion

#2. Convertio

Convertio is essentially considered one of the top options for people looking for a free online converter.

Accurate conversions are one of the advantages that you get when you choose to use this online application to convert files.

If you want to convert files that are encrypted with a good quality rate you can choose to use this.

This website also offers 3 models of membership from which people can choose one for a variety of conversions on different file formats.


  • Allows for drag and drop of files to be converted
  • Fast conversion and ETA are less than 2 minutes
  • 3 membership options available to choose from


  • Files stored on server/cloud to be removed after 24 hours/manually

#3. Zamar

You can rely on this online converter to provide you with excellent quality of converted files between different formats.

Like many other websites, this would also ask you for the format that you wish the file to be converted.

All converted files are sent to your email from where they can be downloaded. It also has allowed for extra features on the converted files like protecting them with passwords or using a watermark on the files to copyright protect them.


  • High-quality conversions between different formats
  • Basic, pro, and business plans available
  • Members get unlimited file conversions/day


  • Converted files take longer
  • No simultaneous or bulk conversions

#4. Go4Convert

Go4Convert is popularly used by ebook users due to different reasons. This free file converter helps you convert different formats into PDF in the shortest time possible. Moreover, it gives the entire converted content in a readable ebook format.

The conversion takes place fast and allows for the converted file to be downloaded. You can either choose a file from a cloud-based storage platform or from your local disk or computer. This website is also mobile-friendly to enable users to use it from any device.


  • Conversions take place at a rapid pace
  • Quality of the original document retained
  • All conversions are done free of cost


  • Does not support batch or bulk conversions
  • No membership available
  • Third-party services might be used
  • Security concerns

#5. Unipdf

Although this rates at one among the best free file converter there are a few disadvantages associated with it.

This is why we have rated it last on our top 5. The main advantage of this converter is the fact that it allows for batch conversions.

High-quality PDF conversions are possible with this free file converter. You would be limited to 3 pages of conversion with each session that you use on UNIPDF. You may also choose to purchase this file converter if you wish to have it installed on your computer.


  • Batch conversion possible with this program
  • High-quality conversions
  • Multiple language options supported on this


  • Online conversion not possible as it requires to download and installation
  • Free download or trial version limits you to 3 pages of conversion


You might want to check on the security features of these online converters. This is specifically the case when you choose to have sensitive information converted to PDF files.

Using a free online converter can be very helpful when you choose the best in the market.

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