UD5 Toolkit
Encrypted Note Taker - Online Write & Encrypt in Browser
Write notes that are encrypted in your browser before saving to localStorage. Only accessible with your passphrase.
Quick Notepad - Online Private Note Taker with Auto Save
Frequently Asked Questions
Absolutely. Everything you type stays in your browser’s local storage. No data is sent to any server or third party.
No, because the notes are saved locally in your current browser. To move a note, use the download button and transfer the .txt file.
Clearing cookies and site data will delete your saved note. We recommend downloading important content regularly.
As you type, changes are automatically saved to localStorage after a brief pause. You can close the tab and reopen it later – your text will be there.
LocalStorage can hold 5–10 MB of text, which is roughly hundreds of pages. The live word counter helps you track length.
Once the page is loaded, the notepad works completely offline. No network requests are made while you type.
Markdown to Word Snippet – Online Copy Formatted Text
Render Markdown and copy the formatted output as rich text to paste directly into Word or Google Docs.
LocalStorage Manager - Online View, Edit & Export Keys
A GUI to manage all keys in your browser's localStorage. Add, delete, edit, and export data. Debug progressive web apps.
Clipboard API Tester - Online Read & Write Sandbox
Experiment with the Async Clipboard API: read/write text and images from the clipboard. Verify permissions and see demo code.
Keyboard Shortcut Recorder - Online Capture Combinations
Press any key combination and record the sequence. Export as JSON or human‑readable text. Perfect for documenting shortcuts.
HTML to Rich Text Copier - Online Format for Word/Google Docs
Paste HTML and copy the formatted rich text to your clipboard. Paste directly into Word or Google Docs with styles intact.
Cursive Writing Worksheet Generator - Online Traceable Handwriting
Type any text and generate a printable cursive handwriting practice sheet with dotted lines. Choose font styles. Local generation.
Online Blackout Poetry Creator – Paste Text & Redact Words
Paste an article and click to black out words, leaving a poem. Print your final creation.
Online Piano Keyboard - Play & Record Simple Melodies
Play a virtual piano keyboard using mouse or computer keys. Sustain and octave control. Record and play back your tune.
Letter to Future Self – Online Private Encrypted Journal
Write an encrypted letter to your future self, protected by a password. No server. Pure local Crypto.
Local JSON Data Explorer - Online Browser Storage Viewer
View, edit, and manage JSON objects saved in your browser's localStorage. Delete, export, or import keys. No setup.
Image Text Watermark Tool - Online Batch Add Copyright
Add semi-transparent text watermark to images. Customize position, opacity, rotation, and font. Batch processing with instant download. Fully local & private.
Typing Speed Test - Online WPM & Accuracy Checker
Measure your typing speed in words per minute and accuracy. Random word prompts. Compare results over time. No data sent.
Local Password Vault - Online Encrypted Browser Storage
Store passwords and notes encrypted with a master passphrase. Data lives only in your browser's localStorage. No cloud.
Freelancer Portfolio Page Generator – Online Simple One‑Pager
Fill in bio, skills, projects to generate a clean HTML portfolio page. Copy the code. Local builder.
Batch Cooking Scaler – Online Freeze Meal Portions
Scale a recipe to serve a crowd and calculate container sizes needed. Meal prep helper.
Refinance Breakeven Calculator – Online Savings vs. Costs
Enter current and new loan details plus closing costs to see how many months to break even on a refinance.
Online Metronome - Precise Beats per Minute & Time Signature
A precise online metronome with adjustable BPM, beat emphasis, and time signature. Works offline. Essential for musicians.
Text to Vue SFC Skeleton - Online Quick Single File Component
Enter a component name and get a basic Vue 3 Single File Component template with script setup. Fast scaffolding.
Diceware Passphrase Generator - Online Secure Word-based Password
Generate strong, memorable passphrases using the Diceware word list (EFF). Choose number of words. Cryprographically random selection. Privacy guaranteed.
Label Sticker Maker - Online Design & Print Avery Templates
Design simple text‑based labels and print them on standard Avery label sheets. Choose from common templates.
Packing List Generator - Online Trip Organizer by Type
Select trip type (beach, business, camping) and get a pre-filled packing checklist. Customize and print. Local storage.
React Custom Hook Scaffolder - Online Code Generator
Provide a hook name and select features (state, effect, callback). Get a complete React custom hook with TypeScript. Faster development.
Gradient Text CSS Generator - Online Clip & Fill
Create gradient‑filled text with the background‑clip property. Choose linear or radial gradients. Get the CSS. Modern typography.
CSV to SQL INSERT Converter - Online Generate Statements
Convert comma‑separated data into a series of SQL INSERT statements. Define the table name and column order. Local.
Timestamp to Relative Time - Online '5 minutes ago'
Convert a Unix timestamp or ISO date into a human‑friendly relative string like '2 days ago'. See examples.
Browser Font Stacks Explorer - Online Defaults Per OS
See which fonts map to generic families (serif, sans‑serif, monospace) on different operating systems. A handy reference.
JSON to SQL INSERT/UPDATE Converter - Online
Parse a JSON array and generate SQL INSERT or UPDATE statements. Perfect for data migration. Client‑side only.
Cookie Store API Tester - Online Async Cookie Read/Write
Read, write, and delete cookies using the modern Cookie Store API. Monitor change events. No more document.cookie parsing.
Resistor Color Code Calculator - Online Band to Value
Select color bands to decode a resistor's value, tolerance, and temperature coefficient. Essential for anyone working with electronics hardware.