9 lightweight JavaScript bookmarklets for OSINT, security research, and CTF competitions. No installation required. Zero external calls. All code runs locally in your browser.
Browser extensions require installation, permissions, and trust. Bookmarklets are different:
- No install — drag to your bookmark bar and click to run
- No permissions — no access to browsing history, tabs, or other data
- No tracking — all code runs locally, nothing is sent to external servers
- Portable — works in any browser, easy to share, inspect, and audit
- Transparent — the entire source is visible JavaScript you can read
Option 1: Visit the Interactive Installer — drag and drop buttons to your bookmark bar.
Option 2: Browse individual bookmarklet folders, copy the minified JavaScript from the .js file, and save it as a bookmark URL.
| Tool | Description |
|---|---|
| LinkedIn OSINT Extractor | Extract posts, comments, timestamps, and engagement metrics from LinkedIn. Export as TXT, JSON, HTML, or CSV. |
| Domain OSINT Hub | Launch 18+ OSINT services for any domain with one click. Preset system for common workflows. |
| Expose Hidden Content | Reveal HTML comments, hidden elements, and concealed content with color-coded highlighting. |
| URLs Extractor | Extract all links and resources from a page. Generates searchable HTML and TXT reports. Handles Base64 content. |
| Enhanced Image Downloader | Download images with size filtering, auto-scrolling for lazy-loaded content, and metadata generation. |
| Username Generator | Generate 500+ username variations from a name for cross-platform OSINT searches. |
| Multi-URL Opener | Paste a list of URLs and open them all at once. Smart detection and protocol correction. |
| Website Recon Scanner | Scan 80+ paths for sensitive files, security headers, technologies, social links, and contacts. Export TXT/JSON/HTML. |
| Vessel Tracker | Generate tracking links across maritime platforms using IMO, MMSI, or vessel name. |
OSINT Investigations — Social media data extraction, profile analysis, timeline mapping, domain reconnaissance.
CTF Competitions — Hidden element discovery, HTML comment analysis, URL and resource extraction.
Security Research — Web application testing, content analysis, hidden information discovery.
MIT License — see LICENSE for details.
Contributions welcome — see CONTRIBUTING.md for guidelines.
