Clipboard History Viewer - Online See Last Copies
A small widget that records your clipboard text history (only while open). Search and re‑copy old snippets. No log upload.
UD5 Toolkit
Save, organize & track films you want to watch
A small widget that records your clipboard text history (only while open). Search and re‑copy old snippets. No log upload.
See the International Space Station’s current position on a world map in real time. Uses public API. No refresh.
Check current browser storage usage (localStorage, IndexedDB, Cache) and available quota. Handy debugging tool.
Enter readings before/after meals, get averages, print report. Local storage only.
Estimate how many MB/GB your storage can hold based on navigator.storage.estimate() and display as a pie chart.
Explore your website’s IndexedDB databases and object stores. Add, delete, and inspect records. Like phpMyAdmin for IndexedDB.
Explore your website’s IndexedDB databases and object stores. Add, delete, and inspect records. Like phpMyAdmin for IndexedDB.
Check estimated usage and quota for local and session storage on your browser. Quick dev tool.
Read and write NDEF records to NFC tags using the Web NFC API. Supports text, URL, and MIME records. Works on Android with Chrome.
Enter a URL and see a list of its ARIA landmarks (banner, main, nav). Check document structure for accessibility. Local fetch.
See a live readout of window scrollX and scrollY. Visualize scroll direction. For debugging sticky navs.
Demonstrate how the Web OTP API automatically reads one‑time codes from SMS (mobile). Simulation with a fake SMS input.
See the chromaticity diagram and compare sRGB, DCI‑P3, and your display. Fun for design geeks.
Register a custom CSS property with syntax, initial value, and inherits. Animate colors and numbers that couldn’t before.
Paste an OpenAPI YAML/JSON and render a static, readable API document. No server, pure browser‑based rendering.
Use the CSS Custom Highlight API to style arbitrary text ranges without modifying the DOM. See the future of find‑in‑page.
Create a sticky scroll progress bar for blog posts. Choose colors and height. Copy the minimal CSS and HTML.
Log floor time minutes for small pets. See weekly average. Ensure enough exercise. Local storage.
Log leftovers with date stored and set visual alerts when they need to be eaten. Reduce food waste. Local storage.
Keep track of stitches and rows for your knitting projects. Multiple counters with increase/decrease shortcuts. Data saved in your browser.
Create categorized shopping lists (produce, dairy, meat, etc.). Add items, check them off, and print. Data stored in your browser. Never lose a list.
Track up to 5 habits with a visual chain. Tap to mark day as done, see longest streaks. Data saved in your browser. Inspired by 'Don't break the chain' method.
Log period start dates and cycle length locally. Predict next period and fertile window. Data stays in your browser's storage, never uploaded. Private by design.
Log daily sleep to see cumulative sleep debt or surplus over weeks. Visualizes chronic sleep loss trends. Stores data locally in your browser only.
Shows a counter of how many seconds you have been idle. Tracks mouse and keyboard activity without recording.
Search by country or city to find the capital. Full offline list. Useful for homework or travel planning. Static data.
Convert a JSON array of strings or numbers into a single‑column CSV. Quick data dump. Local.
Keep track of a tennis match: points, games, sets, and deuce. Supports tiebreak. Great for friendly matches. Local.
Take a list of items and reverse the line order. The first becomes last. Simple and quick.
Break a large block of text into a numbered list of sentences. Useful for analysis or translation. Local processing.