Convert Image Grayscale

Recently, buyout talks between Google and Groupon ended with Groupon turning down Google's $6 million offer. But with Amazon backing LivingSocial, should they have? Your guess is as good as mine, but one thing's for sure— Groupon has a great voice, and they're sharing it with ...more

Since PDF files are so popular in both our daily life and work, we see them everywhere. And sometimes we find there are terrfic images or text in the PDF files and we want to save them as seperate files for future use, such as in a presentation or post. Here's the question: ho ...more

Sometimes an iDevice is best used for idle, pointless fun. Today's segment of Making Art on Your iOS Deviceis a mixed bag of time-wasting cool effects and random, but useful art-making tools. Below, 10 apps for creating anything from erratic hand-shaken digital effects to your ...more

Why does the world work the way it does? Linda Dong takes basic scientific principles and translates them into beautifully simple, explanatory images. The narrower the light source, the more sharp an object's shadow becomes. (Foam core, light). A battery is anything that conv ...more

Wouldn't it be nice to just sit at your buddy's house, plug into his network, and see exactly what he's doing? What if it was as easy as that? What makes packet sniffers like Wireshark such potent tools is that a majority of local area networks (LANs) are based on the shared E ...more

From the onset of the popularization of apps for the iDevice, users have experimented with creating original artwork on their iPhone/iPad/iPod Touch. And when famed British artist David Hockney christened the iDevice with his painterly digital drawings, the trend exploded even ...more

The title 333DDD may evoke a familiar NSFW project by the name of 3DD... but, sorry guys, this one isn't about boobs in the third dimension. Artist Mark Beasley’s 333DDD project is “a javascript bookmarklet that converts images on the current page into red/cyan anaglyphs.” Her ...more

Since the early genesis of the brilliant Microsoft Kinect hack, inventive applications have been popping up nonstop. One of the most fascinating projects to surface recently falls within the realm of 3D printing. "Fabricate Yourself"—a hack presented at the Tangible, Embedded ...more

Kudos to Fred Keller and Judy Foster, of Anchorage, Alaska, for undertaking quite possibly the DIY project of the year. The retired couple spent 11 months converting a 1976 Mazda pickup truck into a gigantic radio flyer wagon car. "'I think the words I hear the most often is ' ...more

Snowflakes aren't much to look at during a storm, but when you look real close, you can see just how marvelous they really are. But winter is over and most of us can no longer enjoy the intricate nature of ice crystallization, unless you're sticking your head in your freezer. ...more

I have to say, the Xbox 360 controller is the best controller ever created. When I first held it back in 2005, I swore that the dudes working at Microsoft came over and took a molding of my hands because of how great it felt. The thing felt like it was born there. What's even ...more

Like Facebook, Google+ is a great platform for sharing and viewing photographs. Many talented photographers have already uploaded their portfolios, and in addition to easy album sharing, Google+ offers something Facebook does not—simple editing features for enhancing your phot ...more

Here's another jewel from Serious Eats series, The Nasty Bits: yummy cow tongue, complete with that lovely texture we all know so well. Though most us likely have a negative visceral reaction to the idea of tongue, Serious Eats make a compelling argument that it is actually on ...more

Technology: The Less You Know the Better? I'm sure everyone is now aware of GPS technologies and tracking techniques these days, with the release of numerous documents (even lawsuits) on big name companies like Apple, Microsoft, and Google. Yes, 2011 was a good year for eye-o ...more

This is the first official announcement for a new weekly activity on Null Byte for the community to participate in. Starting next week, depending on how much traffic we get doing it, we are going to start doing live social engineering calls via Skype. I've made a list below so ...more

Here's another delicious Byte. Ucha Gobejishvili, a Georgian Security Researcher under the handle of longrifle0x, discovered two cross site scripting (XSS) vulnerabilities on the official website of Forbes. He discovered the hole in two different locations on the site, and has ...more

Watch out Instagram, there's a new free, sociable photography filter app that hit the iTunes App Store recently, and it just might be some good competition. It's called PicYou and might sound familiar to some of you photo sharing fiends out there. That's because it's been a su ...more

Gamers like myself who have switched back and forth between Skyrim on PC and Xbox lack the ability to share game saves. This really sucks. I love playing Skyrim on a console. It's a very comfortable, easy and relaxed gaming experience. You don't have to worry about your frame ...more

So, you scratched up your $500 Adobe CD and now it's unreadable. You could go buy a new one, but you already purchased it! Searching The Pirate Bay and downloading some Adobe software can usually be easy enough, but what should you watch out for? And what about your movies? W ...more

WonderHowTo is made up of niche communities called Worlds. If you've yet to join one (or create your own), get a taste below of what's going on in the community. Check in every Wednesday for a roundup of new activities and projects. Thanks to all of our active moderators and ...more

We're aiming for this to be one of the last HTS mission announcements, at least for now. As soon as Null Byte finds a server to play with, we are going to start doing root the box competitions, which is like king of the hill, except you have to hack a server and maintain acces ...more

The community tore up the first realistic mission last week. You've applied the techniques learned in the basic missions to a real scenario, so I'm pretty content. The realistic missions are where the learning gets intense and where we can apply real knowledge to extremely rea ...more

Community byters, it's time to get serious. We are finally moving on to the realistic missions in HackThisSite. This is where the learning gets intense and where we can apply real knowledge to extremely realistic situations. We will also be continuing the normal Python coding ...more

If you've ever heard software piracy terminology being discussed, I'm sure the term KeyGens came up. KeyGens is short for key generator, which is a program that exploits algorithmic faults in software by generating software license keys that appear to be genuine. Normally used ...more

Null Byte is looking for forum moderators! Welcome to the ninth Community Byte for coding in Python and completing the challenges presented to us by HackThisSite. These sessions are created to bring our community together, to learn from each other, and grow together. Everyone ...more

Welcome to the seventh Community Byte for coding in Python and completing the challenges presented to us by HackThisSite. These sessions are created to bring our community together, to learn from each other, and grow together. Everyone is welcome, from novice programmers to as ...more

Welcome to the sixth Community Byte for coding in Python and beating the challenges presented to us by HackThisSite. These sessions are created to bring our community together, to learn from each other, and essentially grow together. Everyone is welcome, from novice programmer ...more

Shortening URLs has become a necessity in this age of Twitter and limited-character status updates. It not only allows us to cram more words into our oh-so-important Twitter statuses, but it also helps us with a few other things. Some Benefits of URL Shorteners We can create ...more

Welcome to the fifth Community Byte for coding in Python and beating the challenges given to us from HackThisSite. These sessions are created to bring our community together, to learn from each other, and essentially grow together. Everyone is welcome, from novice programmers ...more

Today's segment of Making Art on Your iOS Device takes us into the third dimension. The below apps are suitable for beginners looking to venture into the world of 3d modeling, as well as pros who simply want the basics of Maya in their pocket. Build models/3D mockups or small ...more

A few weeks ago I wrote about Atomic Web as the best web browser for iOS devices, and while I believe it is a superior option, Atomic Web is not the only alternative web browser you can use on your iOS device. There are three more—Dual Browser, iCabMobile, and iSwifter—that ar ...more