Simple Time Tracker - Online Project & Task Hours Logger
Start/stop timer per project to log hours. See daily and weekly totals. Data stays in localStorage. Export summary as CSV. No account needed.
UD5 Toolkit
Plan your perfect episode structure — intro, segments, and outro — with smart time tracking.
Start/stop timer per project to log hours. See daily and weekly totals. Data stays in localStorage. Export summary as CSV. No account needed.
Lay down a beat on a grid sequencer for kick, snare, and hi-hat. Play, loop, and adjust tempo. All sound via Web Audio API.
Log the hours you slept each night and rate the quality. See a weekly bar chart. Local storage.
Keep track of stitches and rows for your knitting projects. Multiple counters with increase/decrease shortcuts. Data saved in your browser.
Answer questions and see typical milestones for 0-5 years. Educational reference for parents. Not a diagnostic tool.
Create a breadcrumb schema for your website. Fill in the pages and get the ready‑to‑paste JSON‑LD snippet for rich results.
Paste an URL or HTML and see the h1‑h6 hierarchy as a tree. Detect skipped levels and improve accessibility. Client‑side.
Enter a URL and see a nested list of all headings (h1‑h6). Check your document structure for SEO and accessibility. Pure fetch.
Record daily systolic/diastolic readings and pulse. See a trend chart. All data saved locally in your browser.
Enter any date and get its ISO week number, plus the start and end dates of that week. Quick reference.
Add or subtract days, weeks, and months to find a future or past date. Also compute duration between two dates. Essential for project planning.
Encode or decode data to/from Base58 (Bitcoin alphabet). Useful for cryptocurrency address generation testing. Fully local, no data sent.
Searchable table of well‑known TCP and UDP ports with their services. Check 80, 443, 3306, and many more.
Enter a domain and see public WHOIS info via a free API with rate limiting. Quick domain check.
Generate a CSS background that shows a baseline grid. Adjust line‑height and offset. Perfect for aligning text.
Pick a color for each day's mood and see a month‑at‑a‑glance heatmap. Data stored locally. A private emotional log.
Enjoy classic Tetris in your browser. Rotate, move, and drop tetrominoes. Clear lines and score. Fully local JavaScript.
Calculate exact elapsed time between two dates in years, months, weeks, and days. Countdown or time already passed. Simple, visual, and local.
Create colorful digital sticky notes on a corkboard. Drag, edit, and delete. Notes persist in local storage. No login.
Place multiple grid items into the same cells to create overlapping layouts. Learn the technique visually. Copy code.
Randomly generated subnetting questions. Calculate network address, broadcast, and usable range. For CCNA prep.
Play the classic Connect Four in your browser against a friend or CPU. Drop discs to get four in a row. Clean SVG board, local logic.
Convert a simple black and white image into an SVG path using edge detection. Extract vector outlines. Local canvas processing.
Use SSML <mark> tags to fire events during TTS. See text highlighted as it is spoken. Understand speech synthesis timing. local.
Simulate different cache strategies (Cache First, Network First, Stale‑While‑Revalidate) and see responses. Learn offline patterns.
Create a basic Playwright script with browser launch, page navigation, and screenshot. Start E2E testing instantly.
Register a one‑off background sync and see it fire when connectivity returns. Debug service worker sync logic.
Practice aligning grid items and tracks with the place‑items, align‑content, and justify‑content properties. Visual guide.
Every second, the background color changes to the hex code corresponding to the current time (HHMMSS). A beautiful, ever‑changing clock.
Paste an SVG path d string and parse it into an array of commands and coordinates. Useful for animations.