Web apps

Audio tools

“AudioExpert is a free and simple online audio editor, file converter and sound recorder. All the standard functionality of an audio editor provides you with an easy way to create a ringtone for your cell phone. You will find AudioExpert useful also as a powerful audio file converter which will allow you to modify the file format of your files, their bit rate, frequency, etc. If your computer is equipped with a camera and microphone, you can use AudioExpert to record your sounds.”
» http://audioexpert.com

Video tools

Video Toolbox

  • capable of processing video files up to 600 MB.
  • analyses your video files and displays detailed information about the codec, bit rate, frame rate, resolution, etc.
  • converts your files between all of the popular video formats (3GP, AMV, ASF, AVI, FLV, MKV, MOV, M4V, MP4, MPEG, MPG, RM, VOB, WMV).
    in simple mode: all you have to do is select the output format.
    in advanced mode: you can make changes to advanced settings such as:
    – video codec, resolution, bit rate, frame rate.
    – audio codec, bit rate, sample rate, channels.
  • adds a text watermark to your video file.
  • cuts video at start and end points that you determine.
  • crop video with just few clicks
  • merges multiple files for you into a single video track.
  • extracts audio, video or subtitle text from a file — a feature known as demux.
  • records video from your webcam or another movie device.
  • takes snapshots and creates thumbnails off your video clip.
  • adds embedded subtitles to your video file.
  • facilitates downloading flash videos from more than 20 video-sharing websites.
  • features an Advanced File Manager that makes it easy for users to upload their videos and download files from other sites on the Web. The Advanced File Manager also allows users to preview videos as thumbnail sequence. This feature activates on simple mouse-over and is built on a sophisticated thumbnail-rotating technique.

» http://www.videotoolbox.com

File type converters

A suite of free PDF tools for conversion of documents to and from Powerpoint, JPEG, Word, Excel, etc, as well as tools for splitting, merging, compressing, and editing PDFs.
» https://smallpdf.com

Mediafox Marketing s.r.o.
Another suite of PDF conversion tools. The URLs below are self-explanatory.
» http://pdf2doc.com
» http://pdf2docx.com
» http://pdftotext.com
» http://pdftoimage.com
» http://pdf2png.com
» http://xpstopdf.com
» http://pdfcompressor.com
» http://combinepdf.com
» http://jpg2pdf.com
» http://topdf.com
» http://pdf2kindle.com
» http://pdf2mobi.com
» http://pdfepub.com
» http://rtftopdf.com
» http://toepub.com
» http://odt2pdf.com
» http://pdftoxls.com
» http://wordtojpeg.com

Free-to-use Browser-based Writers’ tools

Bibliographic citation generators

[Includes plagiarism checkers]

» http://www.citethisforme.com

» http://www.easybib.com

» http://www.bibme.org

» http://www.citationmachine.net