WeVideo — Online video editor for web, mobile, Windows & MacOS.
SpeedCoder — Typing practice for programmers.
Astro File Manager — Organize, find, and access internal and external files on Android phones.
Evernote — Cross-platform, freemium app designed for note taking, organizing, and archiving.
GoodReader — Great for storing and reading (and annotating) PDFs on your device. Many options for syncing and downloading.
Resilio — File synchronization between individuals and devices locally — without using the cloud.
SHAREit — Transfer files on local WiFi connections.
Coffitivity — Coffeeshop background sounds.
Egg Timer — A simple countdown timer in the browser.
Noisli — Background noise & color generator.
PDF Escape — Online PDF editor and form filler.
Small PDF — All sorts of free PDF services.
Time.is — Current time around the world.
WiFi Map — Passwords for public places.
7-Zip — My preferred archiver for zipped and compressed files - small digital footprint and easily transportable.
Android File Transfer — Incredibly useful software that allows you to browse and transfer files between your Mac computer and your Android device.
Calibre — E-book application suite that allows users to manage e-book collections as well as to create, edit, and read e-books.
CCleaner — System optimization, privacy and cleaning tool.
FocusWriter — Simple, distraction-free writing environment.
Foxit Reader — PDF document viewer and creator for PCs.
LibreOffice — Office suite that includes word processing, spreadsheets, slideshows, diagrams and drawings, databases, and composing mathematical formulae. (Mostly) compatible with Microsoft Office formats.
Notepad++ (Windows) — Text editor which supports several programming languages.
SpaceSniffer — Tree map visualize and understand how folders and files are structured on your disks.
Sumatra PDF (Windows) — PDF, eBook (ePub, Mobi), XPS, DjVu, CHM, Comic Book (CBZ and CBR) reader for Windows.
Graphite — Secure, decentralized, and user-owned file creation, file storage, communication, and sharing.