Local Storage Viewer

View local storage keys and their values

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(У мене вже є менеджер скриптів, дайте мені встановити його!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Local Storage Viewer
// @namespace   Violentmonkey Scripts
// @version      1.01
// @description  View local storage keys and their values
// @license MIT
// @author       H17S3/Spartanian
// @match        http://*/*
// @match        https://*/*
// @grant        none
// ==/UserScript==

(function () {
    'use strict';

    var container = document.createElement('div');
    container.style.position = 'fixed';
    container.style.top = '10px';
    container.style.right = '10px';
    container.style.width = '400px';
    container.style.maxHeight = '500px';
    container.style.overflow = 'auto';
    container.style.background = '#2b2b2b';
    container.style.border = '1px solid #555';
    container.style.borderRadius = '5px';
    container.style.zIndex = '9999';
    container.style.fontFamily = 'Roboto, Arial, sans-serif';
    container.draggable = true;

    var header = document.createElement('div');
    header.style.padding = '10px';
    header.style.cursor = 'move';
    header.style.background = '#222';
    header.style.borderBottom = '1px solid #555';
    header.style.borderRadius = '5px 5px 0 0';
    header.style.color = '#fff';
    header.style.fontSize = '18px';
    header.style.fontWeight = 'bold';
    header.textContent = 'Local Storage Viewer';
    header.style.fontFamily = 'Roboto, Arial, sans-serif';
    container.appendChild(header);

    var content = document.createElement('div');
    content.style.padding = '10px';
    content.style.color = '#fff';
    container.appendChild(content);

    var isDragging = false;
    var startX = 0;
    var startY = 0;

    header.addEventListener('mousedown', function (event) {
        isDragging = true;
        startX = event.clientX - container.offsetLeft;
        startY = event.clientY - container.offsetTop;
    });

    document.addEventListener('mouseup', function () {
        isDragging = false;
    });

    document.addEventListener('mousemove', function (event) {
        if (isDragging) {
            container.style.left = (event.clientX - startX) + 'px';
            container.style.top = (event.clientY - startY) + 'px';
        }
    });


    for (var i = 0; i < localStorage.length; i++) {
        var key = localStorage.key(i);
        var value = localStorage.getItem(key);
        var dataType = typeof value;

        var item = document.createElement('div');
        item.style.marginBottom = '10px';

        var dropdownButton = document.createElement('span');
        dropdownButton.textContent = '▼';
        dropdownButton.style.cursor = 'pointer';
        dropdownButton.style.fontFamily = 'Roboto, Arial, sans-serif';
        dropdownButton.style.marginRight = '5px';
        dropdownButton.addEventListener('click', createDropdownHandler(item, dropdownButton));
        item.appendChild(dropdownButton);

        var keyElement = document.createElement('span');
        keyElement.textContent = key;
        keyElement.style.fontWeight = 'bold';
        keyElement.style.fontFamily = 'Roboto, Arial, sans-serif';
        keyElement.style.marginRight = '5px';
        item.appendChild(keyElement);

        var valueElement = document.createElement('pre');
        valueElement.innerHTML = formatValue(value);
        valueElement.style.marginLeft = '15px';
        valueElement.style.display = 'none';
        valueElement.style.whiteSpace = 'pre-wrap';
        valueElement.style.fontFamily = 'Roboto, Arial, sans-serif';
        valueElement.style.wordWrap = 'break-word';
        item.appendChild(valueElement);

        if (dataType === 'object') {
            dropdownButton.style.visibility = 'visible';
        }

        content.appendChild(item);
    }

    function createDropdownHandler(item, dropdownButton) {
        return function () {
            var valueElement = item.querySelector('pre');
            if (item.classList.contains('expanded')) {
                item.classList.remove('expanded');
                dropdownButton.textContent = '▼';
                valueElement.style.display = 'none';
            } else {
                item.classList.add('expanded');
                dropdownButton.textContent = '▲';
                valueElement.style.display = 'block';
                colorizeNumbersAndBooleans(valueElement);
            }
        };
    }

    function formatValue(value) {
        try {
            var parsedValue = JSON.parse(value);
            return JSON.stringify(parsedValue, null, 4);
        } catch (error) {
            return value;
        }
    }


    function colorizeNumbersAndBooleans(valueElement) {
        var text = valueElement.innerHTML;
        text = text.replace(/"(true|false)"/g, '<span style="color:#77D72F;">$1</span>');
        text = text.replace(/"([^"]*)"/g, '<span style="color: #77D72F;">"$1"</span>');
        text = text.replace(/\b(\d+(?:\.\d+)?)\b/g, '<span style="color: #f39c12;">$1</span>');
        valueElement.innerHTML = text;
    }

    document.body.appendChild(container);

    var toggleButton = document.createElement('button');
    toggleButton.style.position = 'fixed';
    toggleButton.style.top = '10px';
    toggleButton.style.left = '10px';
    toggleButton.style.padding = '10px';
    toggleButton.style.background = '#2b2b2b';
    toggleButton.style.border = '1px solid #555';
    toggleButton.style.borderRadius = '5px';
    toggleButton.style.zIndex = '9999';
    toggleButton.style.color = '#fff';
    toggleButton.style.fontFamily = 'Roboto, Arial, sans-serif';
    toggleButton.textContent = 'Toggle GUI';

    toggleButton.addEventListener('click', function () {
        if (container.style.display === 'none') {
            container.style.display = 'block';
        } else {
            container.style.display = 'none';
        }
    });

    document.body.appendChild(toggleButton);
})();