The following are free and work great

Pixlr - Is one of the best photo editing and design tools. Edit photos and create stunning designs right in your browser, on your phone, or desktop for free. Start from an empty canvas, a photo, or a video, or select one of their professionally crafted templates.

https://pixlr.com/

Photopea - Free online editor supporting PSD, XCF, Sketch, XD and CDR formats (Photoshop, GIMP, Sketch App, Adobe XD, CorelDRAW) You can save your work as PSD, JPG, PNG and SVG file types.

https://www.photopea.com/

Free Background Removal Tool - Remove image backgrounds automatically in 5 seconds with just one click. Don't spend hours manually picking pixels.

https://www.remove.bg/

Adobe Background Remover - Free online tool to remove backgrounds from any photo. 

https://www.adobe.com/express/feature/image/remove-background

Juxtapose - Side by Side Image comparisons 

https://juxtapose.knightlab.com/

Most of these sites are free and powerful video editors to give your multimedia that professional touch.

Runway ML - Runway has all the tools you need to make videos. Realtime collaboration, precision editing, AI Magic Tools, keyframe control, and much, much more

https://runwayml.com/

Synthesia - Synthesia AI Video platform. Create videos in minutes, not weeks · Create your videos in 50+ different languages. The future of everything AI is here.

https://www.synthesia.io/

Clipchamp - Clipchamp is a go-to video creation and editing suite. Incredibly easy to use with excellent functionality and an extensive stock library, text and colour templates etc.

https://clipchamp.com/

Vlipsy - is a great source for the best video clips (vlips) for chat and social media. Find funny video clips and other reaction clips to use in your videos.

https://vlipsy.com/

The following I couldn't fit into a category, but are handy nonetheless 

Namechk (use this to check if your business name or social URL's have been taken.)

https://namechk.com

Fast (check your internet speed)

https://fast.com/

ManualsLib (missing a manual for your appliance, try ManualsLib)

https://www.manualslib.com/

SuperCook (handy site for when you don't know what to cook, simply select your ingredients and the site will find a recipe for you)

https://www.supercook.com/

Noises Online (Free online relaxation/noise draining sounds)

https://noises.online/

A Soft Murmur (very similar to the site mentioned above)

https://asoftmurmur.com/

Calligrapher - Realistic computer-generated handwriting

https://www.calligrapher.ai/

Dictation - A very handy website for those who hate typing, just allow microphone access and the site will convert your speech to text, super easy!

https://dictation.io/

Alternative To - AlternativeTo is a free service that helps you find better alternatives to the products you love and hate.

https://alternativeto.net/

Resume Maker Online - Is a useful website where you can build a resume for free on the internet. Easy to use and looks professional.

https://www.resumemaker.online/

Blob Opera - This one's just for fun, Create your own opera-inspired song with Blob Opera - no music skills required! A machine learning experiment by David Li in collaboration with Google Arts & Culture

https://artsandculture.google.com/experiment/blob-opera/AAHWrq360NcGbw?cp=e30.

LaLaL.AI - Extract vocal, accompaniment, and various instruments from any audio and video using AI technology.

https://www.lalal.ai/

Animated Drawings - Bring children's drawings to life, by animating characters to move around!

https://sketch.metademolab.com/

ClassicReload - was setup for the preservation of 6,000+ old retro abandonware games and abandoned OS/interfaces that you can play DOS games online right in your web browser for education and research purposes.

https://classicreload.com/

I Have No TV - Free Documentaries Website - including docos on Astronomy, Nature, Brain, Science, Health, Lifehack - A great free streaming documentaries website.

https://ihavenotv.com/

Here you'll find, Free online virus tools to keep your PC clean and PDF editors and file converters.

VirusTotal

https://www.virustotal.com/

PDF Escape

https://www.pdfescape.com/

Free Online File Converter

https://www.online-convert.com/

We Transfer (transfer large files)

https://wetransfer.com/

File Pizza (Free peer-to-peer file transfers in your browser.)

https://file.pizza/

Ninite - Great site for setting a new computer

https://ninite.com/

PDF24 - Free and easy to use online PDF tools

https://tools.pdf24.org/en/

How secure is my password

https://howsecureismypassword.net/

Snap drop - Easily send files between devices on the same network.

https://snapdrop.net/

Take a file - Free file transfer, no matter what size

https://takeafile.com/

Record Screen - Record your screen right from the browser.

https://recordscreen.io/

PDF 2 CMYK - Convert all images in a PDF from RGB to CMYK.

https://www.pdf2cmyk.com/

Rytr is an AI writing assistant that helps you create high-quality content, in just a few seconds, at a fraction of the cost!

https://rytr.me/

Adobe Acrobat - Converts any .PDF file into a Word document.

https://www.adobe.com/au/acrobat/online/pdf-to-word.html

ToffeeShare - Share files privately & fast, without a size limit

Send your files securely and fast, Peer to peer, directly from your device without ever storing anything online.

https://toffeeshare.com/

Web Clip Board - Share your clipboard text from anywhere, this can be great to copy and paste text from your pc to mobile for example. 

https://www.webclipboard.io/

Jimpl - Uncover hidden metadata from your photos. Find when and where the picture was taken. Remove EXIF data from the image to protect your personal info.

https://jimpl.com/

Scribe - Turn any process into a step-by-step guide, instantly.

https://scribehow.com

Use these to download videos from YouTube, Facebook, and other video sites.

Keep vid

https://keepvid.com

Facebook Video Downloader

https://fbdown.net/

Snap Save - Facebook video downloader, just copy and paste the video URL.

https://snapsave.app/

Here's some useful tools to enhance your social media profiles

Profile pic maker

https://pfpmaker.com/

Super handy crypto sites

Coin Market Cap - The best site to keep an eye on crypto market prices.

https://coinmarketcap.com

Collective Shift - Learn all about crypto and what it does here.

https://collectiveshift.com.au/knowledge-centre/

Crypto Dictionary - In the crypto (cryptocurrency) world a lot of slang and terms are used. This glossary of terms and abbreviations used in the world of blockchain will help you to understand what the meaning is of commonly used words

https://blockspot.io/crypto-dictionary

Messaari - Gain an edge over the crypto market with professional grade data, tools, and research.

https://messari.io

CoinMarketCal is the leading economic calendar for reliable cryptocurrency news. It covers all events that help crypto traders make better decisions.

https://coinmarketcal.com

LunarCRUSH delivers community insights to crypto investors, funds and exchanges. Through research applications and APIs, get real-time insights that help make informed crypto investment decisions.

https://lunarcrush.com/

Staking Rewards is the leading data provider for staking and crypto-growth tools.

https://www.stakingrewards.com/

Market Cap Of, is a web app that shows you what value a crypto coin would have with another cryptocurrencies market cap. 

https://www.marketcapof.com/

Here's some useful file converters, you should never be stuck with the wrong file again!

PDF Escape - is the FREE software and PDF converter that can help you format pdf documents and create pdfs online. 

https://www.pdfescape.com/

Free Online File Converter - Convert files like images, video, documents, audio, and more to other formats with this free and fast online converter.

https://www.online-convert.com/

File Convert Online - is another service for converting files online from one type to another.

https://file-converter-online.com/

Cloud Convert - Converts your image files online. Amongst many others, they support PNG, JPG, GIF, WEBP, and HEIC. You can use the options to control image resolution, quality, and file size.

https://cloudconvert.com/