10 useful secret websites
Discover 10 useful secret websites that every browser should have bookmarked! These free, incredibly useful sites will make your online browsing experience even better.
Useful Secret Websites

Useful secret websites you might not have known about

Useful secret websites

What are the most useful websites out there? Free ones are the first kind we can think about, and that’s why we’ve found some fun useful websites that we’d like to share with all of you bargain hunters out there.

We put together a list of hidden useful websites that most don’t even know about and the best thing is that they’re free to use. A few of these we may have already posted about, but they are so good that they need to be mentioned again in case some people didn’t see our other posts.

So if somebody asks you, “What are the most useful websites?” You send them our way.

Every web browser should have these pre-bookmarked because we’re confident that anyone using the internet will eventually need tools like the ones we are posting here. So let’s get to them, shall we?

1. PDF24 Tools

PDF24 Tools

Free and easy-to-use online PDF tools that make you more productive. PDF24 Tools offers over 70 PDF tools completely free so you don’t have to buy expensive Adobe software to work with any PDF file. Merge, compress, split, edit, create, overlay, and many more features. This is a must-have for everyone working in the office or simply creating resumes for a new job.

One of our favourite hidden useful websites for PDF editing and creating.

2. Open Library

Open Library

Available through digital lending Open Library offers millions of books. To get your Library Card all you need is an email address. Open Library is an open, editable library catalogue, building towards a web page for every book ever published.

To date, they have gathered over 20 million records from a variety of large catalogues as well as single contributions, with more on the way.

Open Library is an open project: the software is open, the data are open, the documentation is open, and they welcome your contribution. Whether you fix a typo, add a book, or write a widget–it’s all welcome. They have a small team of fantastic programmers who have accomplished a lot, but they can’t do it alone!

Add this to your fun useful websites list.

3. 12ft Ladder

12ft Ladder

Has somebody ever shared a link with you about some news article that they thought you would be interested in and when you go to view it you’re hit with this paywall saying that you have to pay to read the article with a subscription?

Well, you can avoid that with ’12ft Ladder’. You can enter the URL on the website or, Prepend 12ft.io/ to the URL of any paywalled page, and they’ll try their best to remove the paywall and get you access to the article.

The idea is pretty simple, news sites want Google to index their content so it shows up in search results. So they don’t show a paywall to the Google crawler. You benefit from this because the Google crawler will cache a copy of the site every time it crawls it.

All they do is show you that cached, un-paywalled version of the page.

What are the most useful websites? 12ft Ladder is at the top of that list.

4. Quillbot AI


Quillbot is a free paraphrasing website popular amongst students. QuillBot’s Paraphraser is fast, free, and easy to use, which makes it the best paraphrasing tool on the market. Quillbot also provides unique features like the ability to compare outputs from seven different modes, access to a built-in thesaurus to customize your paraphrases, and the option to requill for a new output.

Quillbot AI carefully maintains or improves the fluency and readability of your text while showing you information like word count and percent change. Best of all, you can start using the tool right away—no need to log in or scroll past endless ads!

QuillBot integrates directly into Chrome and Microsoft Word. Now you don’t have to switch windows every time you want to rephrase a sentence, paragraph, or article!

5. Unroll.Me


We’ve got a huge subscription problem from enrolling in new Affiliate networks that aren’t any good, survey sites that don’t pan out and we’re inundated with tons of subscription emails from all of them every day. The worst part is that they all seem to blast their emails out at the exact same time and my email notifications are constantly going, “Boing, boing, boing!” It’s annoying and we don’t have the time to unsubscribe from them all.

Well, now with ‘Unroll.me’ we can bulk unsubscribe for FREE! Unroll.Me gives you the tools you need to manage a cluttered mailbox full of pesky subscription emails.

Decluttering your inbox has never been so easy, or looked so good. With the new ‘Unroll.Me’, you can unsubscribe from unwanted emails, keep the ones you want, and ‘rollup’ the rest into a single daily digest.

6. Otter.AI


Get an AI meeting assistant that records audio, writes notes, automatically captures slides, and generates summaries. Otter is an AI tool that will transcribe speech to text in real time You can streamline your meeting notes and you won’t have to worry about leaving out important details. You can store and index all your meeting notes in one place for simple access.

This would be a useful website for bloggers also. Imagine you’re out and about and something pops into your head that you would like to blog about. Simply open up Otter and start talking and when you get home simply copy and paste the text into your post!

Available for iOS, Android, and a Chrome extension.

7. Unsplash


If your looking for images for your next project, then look no further than Unsplash. You can browse their entire catalogue all for Free. With other image sites, you can expect to pay as much as $500 or more. You’ll save thousands with Unsplash!

Over 3 million free high-resolution images are brought to you by the world’s most generous community of photographers. Useful secret websites that are great for the bloggers out there.

Unsplash is the internet’s source for visuals. Powered by creators everywhere.

8. Untools


For those that are into thinking tools and frameworks, Untools has a collection that you’ll benefit from.

Categories include:

  • Communication
  • Decision Making
  • Problem-Solving
  • Systems Thinking

Untools is a collection of thinking tools and frameworks to help you solve problems, make decisions and understand systems.



What are the most useful websites for getting and staying fit? Well, with access to over 18000 free workouts in its database, then that answer would be Darebee.

DAREBEE is an independent global fitness resource. DAREBEE is a non-profit and also an ad-free and product placement-free website. All of the information here has been thoroughly researched and tested and provided free of charge. You can download and print anything – everything is provided in its entirety with no strings attached.

Most of the workouts don’t require any equipment and you’re body weight is the only thing required.

10. The Noun Project

The noun project

If you are ever in need of an icon for your projects with over 5 million art-quality free icons to make any idea more memorable. From astronauts to zebras, The Noun Project got you covered.

Each icon is professionally curated for quality, diversity and inclusion. Download as PNG or SVG file for easy editing. Each icon is professionally curated for quality, diversity and inclusion. Download as PNG or SVG file for easy editing.



We hope this list of useful secret websites helps you out as much as they help us out here at Mac’s Opinion. These are fun useful websites that everyone should have in their bookmarks. Don’t waste your time trying to find those hidden useful websites when we’ve done all the hard work for you.

If you’re asked, “What are the most useful websites?” just answer them by sending them the URL to this post. They7’ll thank you for it.


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