Check for web application security issues.

In plain words

This web application security scanner checks websites for vulnerabilities and security issues. Launched in 2012, it helps developers and site owners identify potential problems before they can be exploited. The tool is designed for anyone responsible for maintaining web application security, from individual developers to larger teams. It provides automated scanning to detect common security flaws and weaknesses in web-based systems.

written from the facts on this page · September 2026

• 
  I made tool that let's you see everything about any website2024 · v1.web-check.xyz · ▲411

  Yes, it's open source: https://github.com/lissy93/web-check :) Why I'm building this? There are a lot of tools out there for discovering meta and security data relating to a website, IP or server. But currently, there isn't anything that does everything, all in one place and without a paywall/ user sign up. It's still a WIP, and I'm working on a new version, with some more comprehensive checks, so any feedback would be much appreciated :)

• 
  Google Security Scanner2015 · cloud.google.com · ▲99

  Allows developers to scan their apps for vulnerabilities

• 
  Website Threat Scanner2025 · webscan.dheerajjha.com · ▲10

  A web tool to scan websites for common vulnerabilities

• 
  Probely2018 · probely.com · ▲87

  Intuitive and easy-to-use webapp vulnerability scanner

• 
  Probely 2.02019 · probely.com · ▲93

  Quickly scan your website and fix vulnerabilities

• 
  Scanning the Web for Security.txt Files2021 · github.com · ▲50

• 
  SimCity, but with Permits▲873

  A free city-building game in your browser. You are the mayor. You know what the city needs. Now get it past the zoning board, the neighbors, the appeals court and the next election.

  Life & fun · 21h ago · permit.petercai.com

• IV
  I've been paying for a rural Tanzanian's education for 10 years▲778

  Life & fun · 13d ago · tanzaniaeducationproject.org

• 
  Bigwords.page – Turn any screen into a sign. The URL is the app▲728

  Turn a phone, tablet or TV into a sign. Type a message and it fills the screen: welcome signs, timers, Wi-Fi passwords and more. No app, no account, free.

  Life & fun · 14d ago · bigwords.page

• 
  Guitoro, a virtual guitar you strum with your keyboard▲573

  Play a free virtual guitar online with your keyboard or by touch. Slow songs down and see every chord, string and strum. Acoustic, classic, electric and bass.

  Life & fun · 8d ago · guitoro.com

• 
  See *almost* any carriers phone settings▲432

  Carrier settings from iPhone, Pixel and Galaxy firmware, decoded and compared: APNs, VoLTE, 5G and Wi-Fi Calling per carrier, and what each build changed.

  Life & fun · 12d ago · carrierexplode.com

• 
  The whole Solar System and every tracked satellite, live in the browser▲407

  Life & fun · 22d ago · space.bl2.net

• WM
  We made an addictive way to browse pictures on reddit▲401

  Life & fun · 2012 · mongout.com

• S
  Scrollorama▲395

  Life & fun · 2012 · johnpolacek.github.com

• 
  my database engine for GPU▲364

  ålenkå files. Full list of files for ålenkå

  Dev tools · 2012 · sourceforge.net

• IM
  I'm tired of corrupt US politicians, so I created this▲334

  Life & fun · 2012 · politicianmarket.com

• HI
  How I built a self-driving (RC) car.▲300

  I have been taking Andrew Ng's Machine Learning course. The lecture module on Neural Networks ends with an intriguing video of the ALVINN autonomous car driving itself along normal roads at CMU in the mid 90s. I was inspired by that video to see what I could build myself. A link to my incomplete write up was posted a couple of weeks ago (ouch!) but I finally finished it and open sourced the code tonight (so you can build your own self driving car). What do you think? http://blog.davidsingleton.org/nnrccar https://github.com/dps/nnrccar

  AI · 2012 · blog.davidsingleton.org

• CC
  Craigslist Car Search▲236

  Life & fun · 2012 · carsabi.com