Best Free Online eBook Converter

Online eBook Converter provided by Online-Convert.com supports a variety of input formats like PDF, ePub, mobi, HTML, LIT, LRF and more—choose the target format you need for your eBook reader and start converting.

Best Free Online File Archiver / Zip Utility

ezyZip , add files to create a zip file, or unzip a file to a target folder in your computer, quick and easy. Uploading or downloading your files is not necessary as both zipping and unzipping run locally as a Java applet in your browser.

ZipMyFiles , a simple and easy-to-use widget to zip your multiple files of different types online—choose files from your computer, enter a CAPTCHA code and click Zip Now. You can zip as many as 100+ files in one go, with unlimited access and no registration required.

WOBZIP , enter a URL or browse a file from your computer to uncompress a packaged file up to 200 MB online. You also have a chance to enter a password to unzip a file if it's protected. Supported formats include ZIP, 7z, RAR, GZ, TAR, CAB, CHM, ISO, DMG, DEB, RPM and many more.

Best Free Online File Comparison Tool

DiffNow , compare plain text, pdf, office documents, source codes, binary, zip and other archive files. You can either paste text, upload files or enter URLs and see results in an interactive report for differences. A handy tool for comparing text and small files up to 512 KB.

Best Free Online File Encryption Utility

Encryptur , enter a password to encrypt or decrypt your file up to a max file size at 30 MB using the Advanced Encryption Standard with 256 bit keys derived from your password. An encrypted file is appended with a .simp file extension.

Best Free Online File Format Converter

Free File Converter supports conversion between a wide range of file formats including document, image, audio, video and compression formats. Upload a file, choose a conversion type and download the converted file to your computer. Check here for a full list of conversion types.

Zamzar lets you convert a file up to 50 MB from one format to another and receive a link to the converted file from your email for free. See supported file formats. (Review)

Bender Converter , an easy-to-use online application to convert audio and video files in 3 steps—choose a format to convert to, select a file from your computer, then click Convert and download the converted file you need.

Best Free Online File Transfer

Send Anywhere , send files from your browser to anywhere in the world without the need to sign up or login. A URL containing a 6-digit key is all you need to receive files within 10 minutes. Other options and apps across multiple platforms are also available.

Best Free Online Storage and Backup

Dropbox allows you to back up files and access them online, or share folders with several people to work together easily. Its desktop program is only needed for syncing files across computers. (Review)

OneDrive offers 7 GB of free online storage as part of the Microsoft services for new subscribers. It requires a Microsoft account (previously known as Windows Live ID) to sign in and begin using. (Review)

See also: Google Drive