UD5 Toolkit
Regex Injection / ReDoS Tester - Online Safe Pattern Test
Test a regular expression against malicious inputs to detect catastrophic backtracking and ReDoS vulnerabilities. Educational.
PDF Script Inspector - Online See Embedded JavaScript
PDF Script Inspector
Inspect embedded JavaScript inside any PDF – instantly detect hidden scripts and potential threats.
Drop your PDF here or click to browse
.pdf files only, up to 50 MB
Analyzing...
Parsing PDF, looking for JavaScript…
PDF Information
Embedded JavaScripts
0
No JavaScript found.
Frequently Asked Questions
Embedded JavaScript is code stored inside a PDF file that can execute actions when the document is opened, printed, or when a form field changes. It is often used for interactive forms, validation, or dynamic content, but can also carry malicious intent.
Yes, PDF files can contain malicious JavaScript that exploits vulnerabilities in PDF readers. Attackers may use PDF scripts to download malware, steal data, or perform phishing. This tool helps you review the scripts before opening a suspicious PDF.
Most advanced PDF editors (like Adobe Acrobat Pro) allow you to delete all JavaScript actions. You can also use command-line tools like
qpdf to linearize/clean a PDF, or re-print the PDF to a new file (which often strips interactive elements). This inspector only detects scripts, it does not modify files.
No. All analysis happens locally in your browser using the PDF.js library. Your file is never sent over the network, ensuring complete privacy.
This inspector detects document-level JavaScript (scripts attached to the whole PDF, open actions, etc.). Some scripts hidden inside specific annotations or heavily obfuscated streams might not be exposed by the PDF.js API. For a deeper forensic analysis, you may need specialized desktop tools.
PDF Compressor - Online Reduce File Size Locally
Shrink a PDF file size with configurable image quality and object removal. All processing stays in your browser.
Promise State Viewer - Online Check Resolve & Reject
Create promises that resolve or reject after a delay. See state changes and chain .then/.catch. Debug async code.
Web Animations API Sandbox - Online JS Animation Editor
Write JavaScript using element.animate() and see the result in a live preview. Compare with CSS keyframes. Debugger included.
DNSSEC Chain Validator - Online Check RRSIG & DS
Validate a DNSSEC chain by entering DS and RRSIG records. Verify that signatures match. Educational. Local algorithm.
Permissions‑Policy Header Parser - Online Decode & Check
Paste the Permissions‑Policy header and get a human‑readable table of allowed/blocked browser features. Understand how your site is restricted.
structuredClone() Playground - Online Deep Copy Tester
Input any JavaScript object and see if structuredClone can deep‑copy it. Compare with JSON.parse/stringify. Learn transferables.
HSTS Header Checker - Online Strict‑Transport‑Security
Fetch a site’s HSTS header and validate its syntax, max‑age, and subdomain flags. Ensure your site enforce HTTPS.
Fullscreen API Tester - Online Request & Exit Demo
Test the Fullscreen API: request fullscreen on a colored div, detect changes, and copy the JavaScript boilerplate.
Babel Config Generator - Online Presets & Plugins
Choose Babel presets (env, React, TypeScript) and plugins. Get a clean babel.config.json to transpile your code. Local tool.
Keyboard Event Viewer - Online key, code, keyCode Inspector
Press any key to see the complete KeyboardEvent properties: key, code, keyCode, modifiers. Indispensable for game & shortcut developers.
PDF Word Counter - Online Extract & Count
Drop a PDF and count the total words, characters, and pages. Text extraction is done locally. Privacy‑friendly.
Images to PDF Merging - Online Combine & Order
Combine JPGs and PNGs into a single PDF. Drag to reorder pages. All processing happens locally; your files never leave your device.
JavaScript Live Tester - Online Run & Debug Snippets
Write JavaScript code and see the output or console.log results immediately. Safe iframe sandbox. For quick experiments.
PDF Metadata Viewer - Online Read Author, Title & Keywords
Drop a PDF and see its embedded metadata: author, title, creation date, and more. No content is uploaded; pure browser PDF parsing.
Images to PDF Merger - Online Combine JPG/PNG into One
Select multiple images, arrange their order, and merge them into a single PDF document. Works offline in your browser.
Iframe Sandbox Configurator - Online Test Permissions
Build an iframe with different sandbox flags and see live which features are blocked. For secure embedding.
Bookmarklet Generator - Online Convert JS to Browser Bookmark
Paste any JavaScript snippet and get a ready‑to‑drag bookmarklet link. Minify and encode automatically. Pure client.
String to Escaped HTML - Online Protect Against XSS
Instantly convert plain text into HTML‑safe escaped characters for secure display in web pages. Prevent cross‑site scripting. All processing local.
Timesheet PDF Generator - Online Fillable Work Log
Fill in daily work hours and tasks, and generate a printable PDF timesheet. Clean, professional layout. Local.
PDF Text Extractor - Online Copy Text from PDF Locally
Extract selectable text from a PDF using the browser's built‑in PDF rendering. Copy or download as TXT. No upload, fully private.
Webpage to PDF - Online Print & Save as Document
Enter a URL and instantly generate a PDF version using the browser's print-to-pdf engine. Private, no upload.
HTML Sanitizer - Online Clean Dangerous Tags & XSS Prevention
Strip dangerous HTML tags and attributes (scripts, onclick) to prevent XSS attacks. Safe iframe preview. Local sanitation engine.
Phishing Email Checker - Online Suspicious Link Analyzer
Paste email headers or body text to quickly spot phishing signs, suspicious domains, and obfuscated links. Educational and private.
PDF Merger - Online Combine Multiple PDFs into One
Combine multiple PDF files into a single document. Drag and drop to reorder pages. All merging is done locally for confidentiality.
PDF Page Extractor - Online Split & Extract Pages Locally
Extract specific pages or split a PDF document into multiple files. Works entirely in the browser; your documents never leave your computer.
Password Strength Checker - Online Meter & Analyzer Tool
Evaluate the strength of your passwords with a visual meter and detailed feedback. Check for length, complexity, and breached passwords. All analysis is client-side.
JavaScript Keycode Finder - Online Keyboard Event Tool
Press any key to see the corresponding JavaScript event key, code, and keyCode. An essential debugging tool for front-end developers handling keyboard input.
Online Code Minifier - JS & CSS Compression Tool
Minify JavaScript and CSS code to reduce file size for production. Remove whitespace and comments instantly. Run locally, your code stays private.
Strong Password Generator - Online Random Secure Passwords
Generate ultra-secure, random passwords with configurable length and character sets. Created entirely on your device; never transmitted or stored.