Skip to content

Instantly share code, notes, and snippets.

View KevCui's full-sized avatar
🖤

K̶e̶v̶i̶n̶ KevCui

🖤
View GitHub Profile
// create a bookmark and use this code as the URL, you can now toggle the css on/off
// thanks+credit: https://dev.to/gajus/my-favorite-css-hack-32g3
javascript: (function() {
var elements = document.body.getElementsByTagName('*');
var items = [];
for (var i = 0; i < elements.length; i++) {
if (elements[i].innerHTML.indexOf('* { background:#000!important;color:#0f0!important;outline:solid #f00 1px!important; background-color: rgba(255,0,0,.2) !important; }') != -1) {
items.push(elements[i]);
}
}
@jesstelford
jesstelford / 01-shape-up-to-kindle.md
Last active September 27, 2025 14:38
Read SHAPE UP by basecamp on a Kindle / reMarkable / eReader

Read Shape Up by basecamp on a kindle / reMarkable / eReader

Basecamp's new book Shape Up is now available online (https://basecamp.com/shapeup) to read page-by-page.

There is a .pdf version, but that's not the best format for Kindle / other eReaders. Instead, we can convert the page-by-page into an eReader friendly format.

Part 1: Convert to a single page

NOTE: This has only been tested on Chrome

@wybiral
wybiral / noscript-tracking.go
Last active October 28, 2024 23:01
Tracking cursor position in real-time with remote monitoring (without JavaScript)
// Tracking cursor position in real-time without JavaScript
// Demo: https://twitter.com/davywtf/status/1124146339259002881
package main
import (
"fmt"
"net/http"
"strings"
)
@sarthology
sarthology / regexCheatsheet.js
Created January 10, 2019 07:54
A regex cheatsheet 👩🏻‍💻 (by Catherine)
let regex;
/* matching a specific string */
regex = /hello/; // looks for the string between the forward slashes (case-sensitive)... matches "hello", "hello123", "123hello123", "123hello"; doesn't match for "hell0", "Hello"
regex = /hello/i; // looks for the string between the forward slashes (case-insensitive)... matches "hello", "HelLo", "123HelLO"
regex = /hello/g; // looks for multiple occurrences of string between the forward slashes...
/* wildcards */
regex = /h.llo/; // the "." matches any one character other than a new line character... matches "hello", "hallo" but not "h\nllo"
regex = /h.*llo/; // the "*" matches any character(s) zero or more times... matches "hello", "heeeeeello", "hllo", "hwarwareallo"
@lounagen
lounagen / readme.md
Last active April 12, 2023 00:43 — forked from thomasdarimont/readme.md
Example for decoding a JWT Payload with your Shell (bash, zsh...)

Setup

Add this to your .profile, .bashrc, .zshrc...

BASE64_DECODER_PARAM="-d" # option -d for Linux base64 tool
echo AAAA | base64 -d > /dev/null 2>&1 || BASE64_DECODER_PARAM="-D" # option -D on MacOS

decode_base64_url() {
  local len=$((${#1} % 4))
  local result="$1"
 if [ $len -eq 2 ]; then result="$1"'=='
@jthuraisamy
jthuraisamy / windows-toolkit.md
Last active April 12, 2022 20:00
Windows Toolkit

Windows Toolkit

Binary

Native Binaries

IDA Plugins Preferred Neutral Unreviewed
@tomnomnom
tomnomnom / alert.js
Last active October 27, 2025 04:03
Ways to alert(document.domain)
// How many ways can you alert(document.domain)?
// Comment with more ways and I'll add them :)
// I already know about the JSFuck way, but it's too long to add (:
// Direct invocation
alert(document.domain);
(alert)(document.domain);
al\u0065rt(document.domain);
al\u{65}rt(document.domain);
window['alert'](document.domain);
@EdOverflow
EdOverflow / github_bugbountyhunting.md
Last active October 24, 2025 09:41
My tips for finding security issues in GitHub projects.

GitHub for Bug Bounty Hunters

GitHub repositories can disclose all sorts of potentially valuable information for bug bounty hunters. The targets do not always have to be open source for there to be issues. Organization members and their open source projects can sometimes accidentally expose information that could be used against the target company. in this article I will give you a brief overview that should help you get started targeting GitHub repositories for vulnerabilities and for general recon.

Mass Cloning

You can just do your research on github.com, but I would suggest cloning all the target's repositories so that you can run your tests locally. I would highly recommend @mazen160's GitHubCloner. Just run the script and you should be good to go.

$ python githubcloner.py --org organization -o /tmp/output
@nerdius
nerdius / vimium-arc-dark.css
Last active September 28, 2023 20:19
Arc Dark theme for styling Vimium link hints
/*
Arc Dark theme for styling Vimium link hints
By Giorgi Gzirishvili (@giogziro95). This code is in the public domain.
To use:
1. Copy the code.
2. Go to the Vimium options.
3. Click Show Advanced Options.
@HaleTom
HaleTom / print256colours.sh
Last active August 31, 2025 22:10
Print a 256-colour test pattern in the terminal
#!/bin/bash
# Tom Hale, 2016. MIT Licence.
# Print out 256 colours, with each number printed in its corresponding colour
# See http://askubuntu.com/questions/821157/print-a-256-color-test-pattern-in-the-terminal/821163#821163
set -eu # Fail on errors or undeclared variables
printable_colours=256