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Generate Payment Info, Texts, Files and format Json Offline with DataDuck. DataDuck is a Chrome extension with multiple functionalities to ease test data generation for testers, QA engineers, and developers. With its simple interface, you can generate realistic and multilingual data for your apps instantly without any effort. Multilingual Text Generation > Generate random text in different languages with dynamic lengths (up to 2500 characters) to test multilingual content and interfaces. Realistic Personal Data > Create real-looking names, birthdates, addresses, phone numbers, and email addresses for various countries and cultures in an instant. Payment Data Simulation > Create realistic payment details like card numbers, BIC, IBAN, routing numbers (where applicable), expiry dates, and CVV for finance testing. JSON Formatting & Validation > Format and validate JSON data with built-in tools to ensure your data is well-formatted. File Generation > Create test files as large as 30 MB in size with dynamic content generation that conserves memory by streaming the data in chunks. User-Friendly Interface > Enjoy a minimalistic and simplified experience that allows you to create a wide range of test data within a few clicks. Whether you need to populate forms with actual information or simulate complex financial transactions, DataDuck is a one-stop solution to accelerate your development and testing cycles.
Test Data Generator
Stop wasting time manually typing fake data. Generate 20+ types of realistic test data (names, emails, UUIDs, credit cards, IP addresses, and more) with a single click. Data is automatically copied to your clipboard—just paste and go. What you get: • Instant generation of names, emails, phone numbers, UUIDs, credit cards, addresses, and more • One-click copy to clipboard—no typing, no hassle • Import your own custom datasets via JSON • Customize button colors and labels to match your workflow • Works 100% offline—no server calls, no privacy concerns • Toggle visibility to keep only the data types you need Perfect for: ✓ Developers testing forms and databases ✓ QA engineers running test scenarios ✓ Designers creating realistic mockups ✓ Anyone who needs fake data fast
Fake Data Generator
A Chrome extension to generate fake data. The Fake Data Generator is a powerful Chrome extension designed to generate fake data for developers, testers, and data analysts. With just one click, you can quickly create names, addresses, social id for any language/country, emails, phone numbers, and other types of dummy data to test applications, systems, or protect sensitive information during presentations and demos.
One-Click-Jot
Jot down thoughts and ideas in seconds. Perfect for capturing quick notes while browsing or working. Jot down thoughts and ideas in seconds. Perfect for capturing quick notes while browsing or working. Capture your thoughts instantly with One-Click-Jot — a tiny notepad that’s always one click away. Save ideas, drafts, reminders, or emails instantly in a compact pop-up or in a resizable pop-out window, so you never lose a thought while you browse. Key features • Instant Access — click the icon and the notepad appears. ⚡ • Auto-Save — notes save automatically as you type. 💾 • Cross-Device Sync — access your notes from any device signed into Chrome. 🔁 • Flexible Pop-out Window — open your notes in a resizable window so you can use One-Click-Jot outside the browser tab. 🪟 • Window Size Control — quickly resize the note window with preset sizes or custom dimensions. 📏 • New Note Button — start a fresh note with one click, with a prompt to save your current work first. ✨ • Appearance Controls — Light/Dark Mode plus font options with font size, line height, and letter spacing controls. 🔤 🌙 • Simple Teleprompter Use — open in a new window, resize it or go fullscreen, then adjust font size, line height, and letter spacing in Settings. 🎙️ • Data Privacy & Offline — UI fonts are bundled inside the extension, no network required. Your notes stay yours. 🔒 Tips • For Windows users who want the pop-out window to stay visible, Microsoft PowerToys “Always On Top” can help. (PowerToys: https://github.com/microsoft/PowerToys) What’s new in v1.6 • Added Window Size Control with preset sizes and custom dimensions. 📏 • Added a New Note button to quickly start a fresh note. ✨ • Reorganized buttons so frequently used actions are easier to access. ♻️ • Updated the design with cleaner, more compact button styling. 🔧 • Various UI refinements. What’s new v1.4 • Added Dark Mode. 🌙 • Added Font choices and controls inside Settings. 🔤 • Bigger, smoother text area. • UI improvements — compact top bar and buttons, larger writing area for less distraction, and teleprompter-ready UI. What's New in v1.2: • UI Enhancements: Compact header design, Refined Save button for consistency • Minor Bug Fix: Improved code structure and style consistency What's New in v1.0.1: • Text Field Resizing Optimized: Experience an even smoother note-taking process. • New! Character Counter: Now, keep track of your notes length in real-time, designed to help you make the most out of Chrome's 8KB storage limit. • Improved Data Management: To make things clearer and encourage good note management habits, we've renamed 'Backup' and 'Restore' to 'Export' and 'Import'.
Video Notes for YouTube | Timestamped Notes
The easiest way to take notes on YouTube — and actually find them later. Press Alt+N, type your note, hit Enter. It's saved instantly with the exact video timestamp. Click it later to jump straight back to that moment. No tab switching. No copy-pasting links. No interrupting your flow. Your notes live entirely in your browser. Nothing is sent to any server. No account. No login. No subscription. Just a one-time $9 to unlock Pro features — and they're yours forever. 📌 Timestamped Notes Every note is tagged with the exact second you saved it. Click any timestamp to jump straight back to that moment in the video. Perfect for lectures, tutorials, interviews, and long-form content. 📤 Export to Obsidian, Notion, Markdown, or TXT One-click Obsidian export generates proper frontmatter — video title, channel, URL, and date — and formats your notes as wikilinks so they drop directly into your vault. Notion export creates a structured page. Markdown and TXT export available for everything else. 🗂️ Notes Dashboard Every note you've ever taken, across every YouTube video, in one searchable place. Browse by video, filter by tag, search your full library. Your personal YouTube knowledge base — organized. 🔍 Full-Text Search Find any note instantly as you type, both inside the video panel and across the full dashboard. Built for people who take a lot of notes and need to retrieve them fast. 📸 Screenshot Capture Capture any frame from the video and attach it directly to your note. Saved alongside your text — no alt-tabbing, no external tools. ⏸️ Smart Pause The video pauses automatically the moment you start typing so you never miss a word. Click back on the video to resume. ⌨️ Keyboard-First Press Alt+N from anywhere on the page to focus the note input instantly — no mouse needed. 🏷️ Note Tags + Filtering Tag your notes and filter by tag in the dashboard. Useful once your library grows past a few videos. ✏️ Inline Editing Double-click any note to edit it in place. Confirm with Ctrl+Enter, cancel with Escape. ↩️ Undo Delete Deleted a note by accident? A 4-second undo toast lets you recover it before it's gone. 🔽 Collapsible Panel Minimize to a slim bar when you just want to watch. Expand when you're ready to take notes. 🌙 Light, Dark & System Theme Follows your system theme automatically. Toggle manually anytime. ───────────────────────────────────── FREE FOREVER — NO CREDIT CARD ───────────────────────────────────── ✔ Unlimited timestamped notes on any YouTube video ✔ Full-text search across your entire library ✔ Export to Markdown or TXT ✔ Notes dashboard ✔ Keyboard shortcut (Alt+N) ✔ Undo delete ✔ Light, dark & system theme ───────────────────────────────────── PRO — ONE-TIME $9, NO SUBSCRIPTION ───────────────────────────────────── ✔ Obsidian export (frontmatter + wikilinks) ✔ Notion export ✔ Screenshot capture attached to timestamps ✔ Smart Pause (auto-pauses while you type) ✔ Note tags + tag filtering in dashboard ✔ Bulk export — download all your notes at once ✔ Inline dashboard editing ✔ Storage usage indicator ───────────────────────────────────── WHO THIS IS FOR ───────────────────────────────────── ✔ Students taking notes on YouTube lectures and online courses ✔ Researchers building a timestamped video source library ✔ Obsidian and Notion users who learn from video ✔ PKM and second brain enthusiasts ✔ Professionals watching training content, briefings, or webinars ✔ Content creators analysing videos for ideas and research ✔ Anyone who watches YouTube to learn and wants to keep what they find ───────────────────────────────────── PRIVACY — THE SHORT VERSION ───────────────────────────────────── Notes are stored in your browser using Chrome's storage API. Nothing leaves your device. No account. No login. No tracking on your content. What you write is yours — completely. ───────────────────────────────────── QUICK START ───────────────────────────────────── 1. Install the extension 2. Open any YouTube video 3. Press Alt+N or click the floating panel 4. Type your note and hit Enter 5. Your timestamped note is saved instantly
