What are some useful free online tools for Webmasters that you can recommend?

Looking for image tools?

There’s Freepik, PIXLR, LogoTypeMaker, Loxia Studio, Picktochart, and Typoeffects.

For more IMAGE tools, please see:

Web Freebies - Part 1 - Image Tools

Looking for sound tools?

There’s FreeSound, AudioPal, Audacity, and Vodburner.

For more SOUND tools, please see:

Web Freebies - Part 2 - Sound Tools

Looking for video tools?

There’s mozilla's Popcorn Webmaker, Screencast-o-matic, Google Docs Story Builder, Powtoon, and VLC Media Player.

For more VIDEO tools, please see:

Web Freebies - Part 3 - Video Tools