S.T.A.L.K.E.R. Lost Alpha --- Free Standalone Game

S.T.A.L.K.E.R. Lost Alpha is a fun made game/mod, motivated by the old S.T.A.L.K.E.R. Build 1935, aiming to rebuild the original feel of the famous first-person shooter survival horror game S.T.A.L.K.E.R. Shadow of Chernobyl. This game is standalone release and requires no game in the official S.T.A.L.K.E.R. series to be installed. You can download it at moddb (6GB).

Links:
http://www.dezowave.com
http://www.moddb.com/mods/lost-alpha

OpenNIC --- An open and democratic alternative DNS root

OpenNIC is an user owned and controlled alternative to Top-Level Domain (TLD) registries such as ICANN. This free service can help prevent DNS servers censorship and stop DNS Hijacking. You can also register various OpenNIC-operated Top-Level Domain names at no cost, including .chan (for imageboards), .cyb (cyberpunk-related), .geek ("geeky" contents), .indy (independent stuffs), .libre (non-commercial and free Internet organizations), .oss (open source software), .pirate (sharing), .null, .neo, .o (general purpose) and many others. It also supports resolution of some alternative DNS roots, such as .bit (Namecoin domains), .bazar (free marketplace with Emercoin), .coin, .emc (Emercoin) and so on.

To use OpenNIC, just change your default DNS server addresses to

IPv4 Preferred 185.121.177.177 Alternate 8.8.8.8
IPv6 Preferred 2a02:e00:fff0:fc::2 Alternate 2a0b:3c40:1:212::1

See the detailed setting up guide here: https://wiki.opennic.org/setup
Then you can visit all those non-regular domains above.

Links:
https://www.opennic.org
https://en.wikipedia.org/wiki/OpenNIC

pdf2htmlEX --- Best Tool to Convert PDF to HTML

pdf2htmlEX is a free and open source command line tool to convert PDF files to HTML. pdf2htmlEX can convert PDF elements into corresponding or closest HTML5 elements for rendering in a web browser. It has very good support for all kinds of PDF files, just check the following amazing examples:
Typography: http://coolwanglu.github.io/pdf2htmlEX/demo/geneve.html
Formulas: http://coolwanglu.github.io/pdf2htmlEX/demo/cheat.html
Magazine: http://coolwanglu.github.io/pdf2htmlEX/demo/issue65_en.html

A quick start guide for using the tool: https://github.com/coolwanglu/pdf2htmlEX/wiki/Quick-Start

Official Site: http://coolwanglu.github.io/pdf2htmlEX/

Similar tools:
https://mozilla.github.io/pdf.js/
http://pdftohtml.sourceforge.net
https://poppler.freedesktop.org

Pandoc --- a universal document converter

Pandoc is a free and open source command line tool to convert documents from one format to another. It runs on Windows, macOS, Linux and supports many file formats including HTML, Word, EPUB, LaTeX, PDF, Markdown and so on. You can try it online at: https://pandoc.org/try/

Official Site: https://pandoc.org

JDownloader --- a free download management tool

JDownloader is a free, open source download management tool based on Java and running on almost all platforms, including Microsoft Windows, Linux, Mac. It supports direct downloading from various file hosting services, such as Rapidshare, Depositfiles, Mediafire, Qshare, Zshare, Openload, ..., and you can also use your premium accounts of these file hosting services.

Using JDownloader, you can bypass ads, CAPTCHAs and many other "free download" limitations imposed by file hosting services. For example, you can download several files simultaneously over several connections and save waiting time with hosts which limit downloads to one IP address. Other great features include clipboard monitoring, pausing and continuing of downloads, file integrity verification, and auto-extract compressed archives (e.g., RAR).

Official Site:
http://jdownloader.org

A List of JavaScript Cryptocurrency Miners

JavaScript based cryptocurrency miners can be embedded in a web page as a replacement for advertisement to monetize your websites. When users are visiting the page, the embedded JS code will run in background and mine the cryptocurrency for you. (Last Update: 2019/3/14)

CoinHive (discontinued)
Cryptocurrency: Monero
Minimum payout threshold: 0.05 XMR (~$4) 0.02 XMR
(payments fee: 0.005 XMR if less than 0.5 XMR)
Revenue sharing: 70% (you)
Note: Also supports Link Forwarding and Proof-of-work CAPTCHA.

GridCash (Site Down)
Cryptocurrency: Monero
Minimum payout threshold: 0.004 XMR or 1 WMZ (WebMoney)
Revenue sharing: 70% (you)
Note: Provide easy to use PHP+JS code to bypass blockings.

JSECoin (non cpu intensive)
Cryptocurrency: JSECoin
Note: See also http://www.miscool.ml/2017/10/jsecoin-javascript-based-cryptocurrency.html

Crypto-Loot
Cryptocurrency: Monero & uPlexa
Minimum payout threshold: 0.3 XMR or 5000 UPX
Revenue sharing: 88% (you)
Note: It has self-hosting option + CNAME Proxies instead of using its server hosted JS library.
Note: Currently the best alternative to CoinHive. Now it supports Link Forwarding (shortlinks) and Proof-of-work CAPTCHA.

Coin Have (Site Down)
Cryptocurrency: Monero
Minimum payout threshold: 0.5 XMR (~$50)
Revenue sharing: 85% (you)
Note: It also supports web extension.

CloudCoins (Site Down)
Cryptocurrency: Monero
Revenue sharing: 85% (you)

HashforCash (Site Down)
Cryptocurrency: Monero
Revenue sharing: 95% (you)

Minero (Site Down)
Cryptocurrency: Monero
Revenue sharing: 98% (you)

ProjectPoi (Site Down)
Cryptocurrency: Monero

Inwemo (Site Down)
Cryptocurrency: Monero

MoneroMiner
Cryptocurrency: Monero

Simplecoin
Cryptocurrency: Pay in Clam or Dogecoin

CoinIMP
Cryptocurrency: Monero & Webchain
Payout: 97% if advertisement is enabled, 90% if advertisement is disabled

Others (CoinHive pool with low payment threshold, e.g., to FaucetHub):
DogeMiners (Site Down)

Cryptocurrency: Pay in DogeCoin via FaucetHub
http://ad-miner.com (Site Down)
https://minehub.online (Site Down)
http://u2cloudmining.winspiral.net/monero_mining.php
http://minercoin.net (Site Down)
https://mineiota.com/ (minimal payout: 1 IOTA)

Links:
https://github.com/cryptonoter/CryptoNoter
https://coinhive-proxy.party
https://github.com/x25/coinhive-stratum-mining-proxy (Python)
https://github.com/cazala/coin-hive-stratum (Node.js)
https://github.com/keraf/NoCoin
http://monerominer.life
http://www.socketminer.com
https://brominer.com
http://www.monero-miner.com
https://www.webminerpool.com

draw.io --- A free open source online diagram drawing application

draw.io is a free and open source online diagram drawing application. Just visit https://www.draw.io and begin to draw your diagrams. There is no need for registration or login and you can import existing diagrams from or save your creations to your local drive or online storage services such as Google Drive, Github, Dropbox, One Drive and Trello. draw.io can also work as a Google Docs add-on. It supports many formats, including PNG, JPEG, PDF, SVG, VSDX (Microsoft Visio), HTML and XML.

HTTrack Website Copier --- Download Websites for Offline Viewing

HTTrack is a free (open source) and simple offline browser utility working on both Windows (WinHTTrack) and Linux (WebHTTrack).

You can download/cache a website from Internet to a local directory by inputting the website URL and then browse the site offline without Internet connection as if you were viewing it online. It automatically arranges the original structure of relative links for the cloned website and is also able to monitor and update an existing mirrored site.

Official Site: http://www.httrack.com/page/1/en/index.html

JSECoin --- JavaScript Based Cryptocurrency Mined by Webmasters for Replacing Ads

JSECoin is a JavaScript cryptocurrency that can be mined in a web browser. As webmasters, you can replace ads/earn revenue from your websites with background mining by embedding a simple piece of JavaScript code. And you can also mine the cryptocurrency directly by yourself in your account dashboard. What's more,

"The cryptography code snippet uses less resources than a video advertisement and is less obtrusive to the user experience!"

Click me to register an account now and get 0.12 JSECoin (worth 0.12 USD) rewards!

Project Status:
JSECoin on Google Trends

Free Cloud Storage Services That Can Download Files for You from the Internet Directly to Cloud

The following services can download files from a URL/Magnet address or torrent for you to their cloud storage. You can protect your identity for safety, bypass ISP tracking and unblock BitTorrent/Magnet download limitations by using these services.

1. Furk (ZZLBox.com)
Free Quota:

B/W: 1 GB/day or 5 GB/week. Available only for users with invites, vouchers or Facebook users.

Note: Registration on Furk.net is done by invites only (or you need to register using your Facebook account), you can try the following Furk invite codes:
R63F670GV
GUK2JM4B8
2QI39BFKS

2. OffCloud

Free Quota:

With the free account you will be able to fetch up to 100 direct links per month and use both the instant and remote downloading options. You will also be able to fetch data from 2 file-hosting, streaming or BitTorrent links/magnets. 

Note: You have 3 welcome gift links each month as a free member. A great feature of it is that you can directly download files from a long list of cloud file hosting services such as 4shared Letitbit. Mega, Pcloud, Uploaded, Yandex Disk; and directly upload your offcloud files to Dropbox, Google Drive, OneDrive, FTP, WebDAV.

3. Bitport

Free Quota:

File storage size limits 2 GB, File Expiry 7 days, number of files: 2,
Download speed Unguaranteed, Number of simultaneous downloads 1
File size 100 MB / hour, 100 MB / hour recharge
Notes: support online streaming, free account Unsecured Only HTTP
2 GB Cloud storage, 1 slot Slots for download
Traffic Unsecured, Only HTTP Without antivirus control
On-line stream, On all devices

4. Seedr
Free Quota:

File storage 2 GB

Note: it offers many ways to earn free spaces.

5. FileStream
Free Quota:

File storage size limits: 2 GB; File Expiry: No time limits; Number of files: 2; Download speed: Unguaranteed; Number of simultaneous downloads: 1; Max File Size: 200.0 MB.

Notes: secure encrypted SSL

6. zbigz
Free Quota:

Number of storage files: 2; File size: 1GB; File Expiry: 7 days; Download speed: 150 KBps; Number of simultaneous downloads: 1-2;

Notes: support Video & Music streaming, HTTPS, Unregistered users can also use.

7. sonic.SeedBox
Free Quota:

Once you be a Sonicers, you will be credited 4 GB Storage. You can always upgrade anytime.
Instant Access/ Deployment. Instant access to our member dashboard, no waiting time.
10MB/s Download speed up to 10MB/s
4 GB Storage. Free user will get 4 GB of storage
Unlimited Traffic. Download your files without traffic limitation.
2 torrents. You can only download up to 2 torrents in a day

Other:
http://www.exrapidleech.info/torrent/index.html (Torrent to Direct Link)
https://2giga.link/
http://www.bytebx.com/ (2.5 GB storage absolutely for free)

Sharific
Free Quota:

There is wait time. Direct downloads. No waiting. 1 Torrent per day. 50 Torrents per day(5 current downloads). Advertising. No advertising. up to 150KB/s download speed Maximum download speeds possible. 20GB storage 500GB storage Files kept for 60 days. Files in your premium account kept forever. Upload files up to 1.05 GB in size. Upload files up to 4.98 GB in size. 1 current download allowed. No limits on the amount of downloads.

FilesLoop
Free Quota:

Unlimited download speed 1 File up to 1 GB

MegaBox
Free Quota:

FREE Features: 100 KB/s speed 1 GB size of file Limited banwidth No Video & Music streaming

http://www.quick-torrent.com/en/
https://transfercloud.io
https://www.torrentsafe.com
http://hiperdown.com/
https://www.streamdrive.net
https://www.direct-torrents.com/ (Now went to darknet)
https://www.pcloud.com/ (file storage + http only)
More:
http://alternativeto.net/software/bitport-io/

x10Hosting --- Host your websites for free!

x10Hosting is one of the best free website hosting services. I recommend it because unlike other free services (such the notorious 000webhost and hostinger), it is very stable and will never delete your account without notice or force you to pay by limiting this or that after you used it for some time.

The free service suffices for hosting your WordPress blog, phpBB forum or similar websites. You can even use your free freenom domain for your hosted sites if you like. Although there is no official custom service for free users, you can seek for help in their forum. If you feel the free hosting is not enough, you can also consider to upgrade to paid premium services.

Insecam --- online (insecure) surveillance & security cameras streaming

Insecam is a project to steam online (insecure) surveillance & security cameras, those security cameras without a (secure) password.

You can watch live online webcams all over the world on insecam.org.

Similar Sites:
http://www.opentopia.com
https://www.skylinewebcams.com/en.html
http://www.earthcam.com/
https://www.youtube.com/results?search_query=LIVE+WebCam+ (HD)

Some Selected Live Webcam Streaming on YouTube:
https://www.youtube.com/watch?v=qzMQza8xZCc (NASA Live - Earth From Space)
https://www.youtube.com/watch?v=_9pavMzUY-c (Shibuya Scramble Crossing)
https://www.youtube.com/watch?v=5FrCtTCYVWI (Amsterdam Dam Square)
https://www.youtube.com/watch?v=vPbQcM4k1Ys (Venice Italy Live Cam - Rialto Bridge)
https://webcam.nl/
http://lmgtfy.com/?q=webcam+live

ZeroNet --- Host your own websites uncensorably and for free

ZeroNet is an open, decentralized, uncensorable, and free Internet-like network of peer-to-peer users based on Bitcoin cryptography and BitTorrent network. It is more user friendly and easier to set up your own websites (with zero hosting costs) than the dark web, and also supports anonymity through the Tor network.

Download the client here: https://zeronet.io
Just unzip and run the exe, then you can visit ZeroNet websites like "http://127.0.0.1:43110/1DCNTRLnCAGxhZh4GEbkLAJu8AVFAM82ui/ (How to Create Your First ZeroBlog)" using any Browser. Note ZeroNet sites (zites) use a Bitcoin address (free) or .bit (cost Namecoin) as domain name.

To directly visit ZeroNet sites without using the client, try these ZeroNet proxies:
https://0net.io/
http://zero.heyitswither.tech
https://www.zerogate.tk/ (Adding new sites is disabled)
https://bit.surf:43110/
https://zero.arukascloud.io/
https://zeronet.korso.win/
https://zn.maly.io/
https://proxy.th3nd.com/
https://fuckcf.cf/
https://proxy1.zeronet.functor.xyz/
http://cvhb5yx2qdclb76m.onion.to/ (http://cvhb5yx2qdclb76m.onion tor only)
https://zero.acelewis.com/ (meta proxy)
https://proxy.zeronet.a0z.ru/ (Adding new sites is disabled)
https://www.zerocat.eu (Uses CoinHive)
http://cvhb5yx2qdclb76m.onion/
For more: http://127.0.0.1:43110/138R53t3ZW7KDfSfxVpWUsMXgwUnsDNXLP/?Page:proxies

So, for example, you can click the following links to visit the ZeroNet site "http://127.0.0.1:43110/1DCNTRLnCAGxhZh4GEbkLAJu8AVFAM82ui/" directly and as usual:
https://bit.surf:43110/1DCNTRLnCAGxhZh4GEbkLAJu8AVFAM82ui
https://zero.arukascloud.io/1DCNTRLnCAGxhZh4GEbkLAJu8AVFAM82ui

Links:
https://www.youtube.com/watch?v=9wnPv7Q5UA0 (How to Create a ZeroNet Public Proxy for Everyone to Use)
http://www.zites.cf (Static ZeroNet blogs mirror)
http://127.0.0.1:43110/kindlyfire.bit/?Post:9:Running+a+ZeroProxy
http://127.0.0.1:43110/kindlyfire.bit/?Post:6:Make+ZeroNet+run+on+a+server,+safely+
http://127.0.0.1:43110/138R53t3ZW7KDfSfxVpWUsMXgwUnsDNXLP/?Page:aws-shadow-socks

How to browse dark web (.onion) sites directly (without Tor)

"Whenever you see a URL like http://duskgytldkxiuqc6.onion/, that's a Tor Onion service. Just replace .onion with .onion.to or .onion.city or .onion.cab or .onion.direct or any other domain made available by volounteers Tor2web operators..."

Example: Simply visit "dcentralqknjxqy3.onion" using https://dcentralqknjxqy3.onion.to/
However, you're unprotected when using this way provided by https://tor2web.org/. For anonymity, please install and use Tor Browser to visit the original address. You can find some .onion sites here: http://gizmodo.com/the-deep-web-is-mostly-full-of-garbage-1786857267 (as the title suggests, most of which are just garbage sites.)

Links:
https://en.wikipedia.org/wiki/.onion
https://en.wikipedia.org/wiki/Darknet
https://tor2web.org/
https://en.wikipedia.org/wiki/Tor2web
https://alternativeto.net/software/tor2web/ (.gq, .top, .rip, .cab, .casa, .city, .plus, .link, .direct, .guide)
http://www.entrepreneurera.in/2017/09/guide-create-onion-website-easily-video.html?m=1 (Video Guide to Create Your .onion Website)

Repair your Windows with the Media Creation Tool (Windows.iso)

If you have problems with your Windows, an easy fix that will keep all your installed apps, programmers and files is to repair (refresh/reset/update) your installed Windows using the official media creation tool. It is like a re-installation of Windows, so it can solve most problems, but you don't loss anything you already have.

Just go to https://www.microsoft.com/en-us/software-download/windows10, download the tool, run it and follow the GUI instructions; remember to choose "Upgrade this PC now (Download and install updates)", and that is it.
For detailed steps of this repairing process, please refer to:
https://www.tenforums.com/tutorials/16397-repair-install-windows-10-place-upgrade.html

Other problems:
If you see the error "Setup couldn’t start properly, Please reboot your PC and run set up again", just rename the folders "$Windows.~BT", "$Windows.~WS." and "Windows.old", in your system drive, and try again, see http://www.thewindowsclub.com/setup-couldnt-start-properly-windows-10

Tabula --- Free tool to extract tables in PDF as CSV or Microsoft Excel spreadsheet!

"Tabula was created by journalists for journalists and anyone else working with data locked away in PDFs. Tabula will always be free and open source."

Want to copy a table in a PDF document and save it as a CSV file or Excel spreadsheet? Just try the free and open source tool Tabula! It has a very simple and nice user interface (clicking, dragging to draw the selecting box) and works well for most PDF files containing data tables (only text-based PDFs, not scanned documents, though). Tabula is available on Mac, Windows (no installation is needed, just unzip and run) and Linux.
Official Site: http://tabula.technology/
Source Code: https://github.com/tabulapdf/tabula
Links:
https://ropensci.org/blog/blog/2017/04/18/tabulizer (tabulizer: R bindings to the tabula-java library for processing PDF tables programmatically)