Links to useful websites and tools

Remove backgrounds from JPG/PNG images, completely free, no forced registration or paywall: Pixian AI.

Online language translator, much better than Google Translate: DeepL Translator.

PDFTK Builder, Free PDF editor program (Join, split, rotate, watermark, number pages): PDFTK Builder.

Headphone Equalization graphs on Reddit, get the best sound quality out of your cans: Headphone EQ Graphs (by Oratory1990).

Radio Garden, listen to different radio stations around the world: Radio Garden.

Online photo editor: Photopea.

Music Theory for Musicians and Normal People: Music theory by Toby Rush.

A low-poly 3D model editor: Blockbench.

Programmer's Guide to XYZ, RGB, ICC, xyY, and TRCs: Color guide.

How software gets color wrong: Color guide 2.

a summary of electronics written for hobbyists or people with little technical knowledge: Summary of electronics.

Experiments on a $50 DIY air purifier you can make in 30s: DIY air purifier.

Research: How Subtle Class Cues Can Backfire on Your Resume: How subtle class cues can backwire on your resume.

Explanatory articles on physics, mathematics and other phenomena: Ciechanowski.

How is search so goddamn bad? A ‘Case Study’: Case study.

You can learn to read Middle English: Middle English.

How to Find Hidden Cameras in your AirBNB: Guide.

The Physics of the Universe - Difficult Topics Made Understandable: Physics of the Universe.

Just the Recipe - Skip the clutter on any recipe site: Just the recipe.

3d-mapper - Create your own 3d map online: 3d-mapper.

Coffee-to-water ratio calculator: Coffee-water ratio calculator.

The Old-School Fire Effect and Bare-Metal Programming: Oldschool fire-effect programming.

The Ultimate Oldschool PC Font Pack: Oldschool PC Fonts.

Every mountain, building and tree shadow mapped for any date and time: Shadow map.

PeakFinder: see the view from any mountain or hill: PeakFinder.

Flash Museum: archiving flash games and animations and making them playable again: Flash Museum.

Winamp Skin Museum: Infinite scroll through 80k Winamp skins with interactive preview: Winamp Skin Museum.

What kind of glue to use to attach this to that: This to that.

Customizable free loading SVGs: Loading.io.

Extract images from any webpage: Extract pics.

Resources, Tools and Basic Information for Engineering: Engineering Toolbox.

Discover how to get anywhere from place A to B: Rome2Rio.

When you need to get a book or DVD or rent a game but don't know which libraries have it?: WorldCat (Find items in libraries near you).

A collection of tools designed to help neurodivergent people with tasks they find overwhelming or difficult: Goblin.tools.

CARI Institute: an online community dedicated to developing a visual lexicon of consumer ephemera from the 1970s until now: CARI Institute.

Service manuals for most vehicles: Service Manuals.

A tiny website with fun games and stuff: neal.fun.

Convert images of text to actual text: Online OCR.

Find hidden places in a city you want to visit: Atlas Obscura.

A free, easy-to-use tool to help you collect, organize, annotate, cite, and share research: Zotero.

Online Mathematics Editor: Matcha.

Mecabricks - Online LEGO modelling: Mecabricks.

Create interactive experiences for your webpage: nunuStudio.

3D Particle Playground: Particle Love.

An open source collection of Design Principles and methods: Design Principles.

How to Write Articles and Essays Quickly and Expertly: Writing Guide.

Render anything as HTML checkboxes: Checkboxland.

An Interview with Harry Kahne, Whose Brain can do Six Things at the Same Time: Multiple Mentality Course.

Open source geospatial analysis tool for large-scale data sets: Kepler.

Hiding Images in Plain Sight: The Physics Of Magic Windows: Magic Windows.

Program that keeps your system time accurate: NetTime.

Photographic reference scale: Photographic reference scale.

Grid-based pinboard for note taking: Manifest.

How to Write Email with Military Precision: Writing Guide.

What makes a picture good: Photography Guide.

Teach yourself computer science: Computer Science Guide.

Professionally designed spreadsheet templates for business, personal, home, and educational use: Vertex42.

Free 3D book cover mockup generator: 3D Mockups.

OpenDyslexic: A typeface for Dyslexia: OpenDyslexic.

Computer mouse buying guide: Mouse guide.

About printer tracking: Is your printer spying on you?.

Free online editor for animated sprites & pixel art: Piskel.

Brain Workshop - a Dual N-Back game: Brain Workshop.

Rainmeter, desktop customization tool: Rainmeter.

Best stargazing locations: Dark Site Finder.

Skip those annoying websites which force you to watch ads to get a link: Ad-Link Bypasser.

Your life in 3672 free calculators: Omni Calculator.

Free Amazon price tracker: Amazon price tracker.

Make web pages printer-friendly and convert just about any file to/from PDF: Print friendly.

Which Book - Discover your next great read: Which Book.

Flowchart maker: Flowchart maker.

Application for wireless communications and data transfer between devices over local networks: KDE Connect.

How to create images of hidden objects around a corner in under 10 minutes: non-line-of-sight (NLOS) imaging.