Free Online Tools & Utilities

Test your laptop touchpad in the browser - check taps, clicks, scroll, pinch and multi-touch gestures, find dead zones, and measure its size in real time.

Generate creative usernames for social media, gaming, and online accounts. Pick a style, add a keyword, and copy or save the names you like.

Fake hacking screen: mash any keys and realistic code streams onto a dark terminal. Switch themes and code sources, paste your own code, and trigger Access Granted popups.

Simulate realistic OS update screens fullscreen to prank friends. Supports Windows 11, Windows 10, macOS, and Ubuntu with stuck mode, BSOD, and kernel panic effects.

Convert GPS coordinates between Decimal Degrees, DMS, DDM, and UTM. See all four formats at once, preview on an interactive map, and copy any result.

Browse a complete list of world time zones with abbreviations, UTC offsets, IANA identifiers, DST status, and live local time. Filter by country, region, or offset and export.

Test every key on your keyboard in the browser. Pressed keys glow, tested keys turn green, and a history log catches ghosting and double-typing. Full, TKL, and MacOS layouts.

Build a virtual fish tank in your browser. Add fish, sea creatures, and decor, then watch them swim, feed, and even hunt with lifelike behaviors.

Create a professional resignation letter in minutes. Pick from 6 tones, fill in your details, edit the live preview, then copy the text or export a PDF.

Find your bra size from underbust and bust measurements. Get band and cup results in US, UK, EU, FR, AU/NZ, and JP systems, plus sister sizes and fit tips.

Find out which of the 16 personality types fits you. Answer 32 quick statements to reveal your four-letter type with strengths, growth areas and ideal careers.

Analyze raw email headers to trace the delivery route, detect delays between servers, and check SPF, DKIM, and DMARC authentication results.

Extract email addresses from any text, HTML, CSV, or log content instantly with duplicate removal and domain statistics.

Convert clothing sizes between US, UK, EU, JP, and KR standards for men's and women's tops, bottoms, and dresses, with body measurements in cm.

Convert Chinese characters to Pinyin with tone marks or tone numbers. See character-by-character alignment with color-coded tones, and copy the result.

Create professional cover letters from your contact info, job details, and qualifications, with a live preview and PDF, image, or text export.

Interactive Hiragana and Katakana chart with pronunciation audio, example words, and a quiz to master the Japanese kana writing systems.

Scan your email subject and body for spam trigger words, get a spam score, and see exactly which words could send your message to the spam folder.

Track your paid time off balance across vacation, sick, and personal leave. Log entries by date range and see remaining days, accrual, and utilization.

Simulate realistic OS file operations like deleting, copying, or formatting with authentic Windows, macOS, and Linux dialogs. Perfect for harmless pranks.