Reverse Image Search: The Detective Tool for Catching Plagiarised Images in Seconds

Ever found your images popping up online where they shouldn’t be—like your lost socks mysteriously appearing in someone else’s drawer? Reverse image search is the bloodhound of the content world, sniffing out stolen snaps and digital doppelgängers in seconds. In this guide, you’ll learn how to wield this tool like a pro, track down plagiarists, and keep your visuals where they belong (with you).

What is Reverse Image Search (And Why Should You Care)?

Imagine you’ve baked the perfect cake, only to see someone else posting it on Instagram and claiming it as their own. Reverse image search is your CCTV footage for images—it lets you upload or paste a picture, and then scours the internet to find where else it lives. It’s the quickest way to:

If you create, share, or even just enjoy original visuals, this is a must-have trick in your content toolkit.

How Does Reverse Image Search Actually Work?

Here’s what most people miss: reverse image search doesn’t just look at filenames or metadata. It analyses the pixels themselves, like a digital fingerprint. When you upload an image, the search engine breaks it down into patterns, colours, and shapes, then hunts for visual matches across the web. Think of it as facial recognition, but for pictures of your cat or, more likely, your latest infographic.

It’s fast—usually seconds—and it doesn’t care if the image has been resized, cropped, or meme-ified. Handy, right?

Step-by-Step: How to Reverse Image Search on Any Device

Let’s get practical. Whether you’re on a desktop, iPhone, Android, or even stuck with Safari, here’s how you become an image detective.

1. On Desktop (Chrome, Firefox, Edge, etc.)

2. On iPhone or Android

Ever tried to right-click on a mobile? About as useful as a chocolate teapot. Here’s how to do it properly:

3. With Screenshots

Screenshots are fair game. Just upload your screenshot (PNG or JPG) to the reverse image search tool and let it work its magic. No need to crop out your embarrassing tabs—just the image will be analysed.

Real Example: Tracking Down a Stolen Infographic

Let’s say you’ve created a health infographic that’s 800x1200 pixels (about 8.3 x 12.5 inches, or 21 x 32 cm). You spot a low-res, slightly cropped version on another site. You:

Table: Best Free Reverse Image Search Tools

Tips for Catching Plagiarised Images Fast

Questions People Are Actually Asking

How does reverse image search work?

Reverse image search analyses the visual elements of your uploaded image—think patterns, shapes, and colours—to find visually similar images across the internet. It doesn’t rely on filenames or metadata, so even edited or cropped versions can be found.

How do I reverse image search on an iPhone?

You can use Chrome’s “Search image with Google Lens” by tapping and holding an image, or save the image to your camera roll and upload it to a free tool like KeywordNumbers' Reverse Image Search from your browser.

How do you reverse image search a screenshot?

Take your screenshot, then upload it to your chosen reverse image search tool (like this one). The tool will analyse the image and show you where else it appears online.

Is reverse image search accurate?

It’s as accurate as the databases and algorithms behind the tool. Google and TinEye are generally spot-on for public web images, but private, password-protected, or newly published images might not show up straight away.

What is the most accurate reverse image search?

Google Images and TinEye are both top contenders. Google’s better for sheer volume and newer images; TinEye sometimes finds old or obscure matches that Google skips. For best results, use both.

How do I reverse image search a person?

If you have a photo of someone, upload it to a reverse image search tool. It can help you find other online appearances, but it’s not facial recognition—so results will be limited to visually similar or identical images.

How do I reverse image search on Safari?

Safari doesn’t have built-in reverse image search. Save the image to your device, then visit KeywordNumbers' tool or Google Images in your browser and upload it manually.

Conclusion: Don’t Let Plagiarists Get Away With It

Your images deserve better than a life of internet crime. With reverse image search, you can track down stolen visuals faster than you can say “that’s my meme!” Try out the free reverse image search tool at KeywordNumbers and keep your content where it belongs—credited to you.

Free tools to put this into practice

Reading is one thing — testing your own pages is what moves the needle. Here are the free KeywordNumbers tools that pair best with this guide:

Every one of our free SEO tools is genuinely free to use, with no sign-up required.