Just thought I would post this list of applications which can be run in a web browser rather than needing to install any software on your computer. I find these very useful when I am using someone elses machine or from pc's where I do not have admin rights.
Edit PDF files or fill in PDF files.
Join two PDF's
Unlock or remove password from PDF
Convert PDF to HTML
Upload a PDF and turn it into Text.
Grammar and style checker
Compare document versions
Saves files back to your machine either in jpg format or its own layered high quality format.
HDR Image tool
Converts three differently exposed images to a single HDR image.
Works for jpg, gif, png and svg images
Make Graphical Images for Twitter and Facebook
Music Notation Editor
(requires sign up)
Ebook Reader (will read a book without downloading it if you have the URL of an ePub file)
Convert Video to GIF
Download and Convert Youtube Videos
Crop GIF to a square or reduce file size for Twitter
Audio File Converter
http://www.convertfiles.com/ (also does video)
Convert Word document to eBook format
Convert PDF to Word format
Compare two versions of the one document
Spotify (requires you to be logged into Facebook)
Image hosting for forums
File Unzipping tool
Online Video Editor
https://clideo.com/merge-video (allows some editing and merging of clips but adds watermark)
Create video from MP3 and upload to Youtube
Unzip a file
There are lots of others out there, but these are the ones I use most.