✨

Tools for General

Handpicked utilities for General — get common tasks done in one place.

• 🧾 AA Split Quick expense splitter for group dining & trips. Supports half-share, paid deductions, floor rounding, and minimal transfer paths
• ⏱️ Agenda Timer Plan the duration of each meeting or event segment and run a big live countdown, with sound and desktop alerts when time is up. Adjust durations on the fly and let others follow the agenda progress read-only via a shared link.
• ⚖️ ⚖️ Mr.AI Judge Two people, two stories? Hand the claim and each side\
• 🎵 Audio Converter Batch audio converter — add multiple files at once and convert them all to MP3/WAV/FLAC/OGG/AAC in one click. All in the browser, nothing uploaded.
• 🎵 Audio Editor Online audio editor with waveform visualization, region trimming, volume control, loop playback, WAV/MP3 export, and local auto-save
• 🧑‍🎨 🧑‍🎨 Avatar Generator Turn a text prompt or a single photo into a custom avatar with AI. Built-in style presets — anime, chibi, 3D Pixar, pixel, cyberpunk, watercolor, Chinese ink and more — plus circle/square/rounded cropping and PNG/JPG/WebP export, with a persistent history gallery.
• 🤝 Bargaining Tool Multilingual haggling helper for markets & flea markets. Big buttons for price negotiation — no typing, no translation needed.
• 🎵 Beat Visualizer Mic-powered music visualizer with particles, spectrum, waveform, polar & 3D sphere effects
• ⬛ Black Screen Turn your screen pure black with one tap and prevent device sleep — ideal for monitoring, saving power, and nighttime use
• 📚 Book to PDF Photograph a physical book page by page with your phone camera. Page edges are detected automatically for perspective correction, B&W enhancement and two-page spread splitting, everything is stored in a local bookshelf you can read page by page, and the whole book exports to PDF or an image pack in one click — photos never leave your browser.
• 🧮 Smart Calculator Expression calculator with accounting tape, labels, tax-inclusive/exclusive calculation, and export
• 🤳 Camera Test Test your webcam online with live preview, resolution detection, and screenshot
• 🕯️ Candle A beautiful animated candle with realistic flickering flame. Watch the warm glow of a candle burning in your browser
• 🔗 🌐 Chain Relay Multiplayer relay sign-up tool: start a topic to get a share link, others add short entries via the link with automatic numbering, anyone can edit or delete entries, and all data syncs across devices through the shared system with no login — great for sign-ups, roll calls and tallies
• ✅ 🌐 Check-in Create a check-in page and share the link — others tap a big button to check in (sign-in, roll call, habit tracking). Both sides see all records on a calendar; optionally limit one check-in per person per day, with names, stats, CSV export and a manage password. No signup, browser-only, free.
• ✅ Check-in Sheet Electronic check-in sheet: add or import a roster, tap a card to check someone in with a timestamp, track attendance rate live, add notes, then export the result as a spreadsheet, image or text and share it. Data stays local.
• 🪩 Color Strobe Minimal Disco strobe simulator — fullscreen high-saturation colors flash rapidly to create a party atmosphere
• 🔢 Counter Minimalist tap counter — tap anywhere to +1, with step, target, multiple counters, sound, vibration and fullscreen
• 🎟️ Coupon Generator Free online coupon maker for small businesses. Design discount, voucher, cashback and gift coupons with 8 templates, custom colors, QR codes, serial codes and logo upload. Download PNG/SVG or print tiled on A4 as PDF.
• ⏰ Deadline Board Add projects with deadlines and track time consumption with color-coded progress bars, overdue alerts, and a fullscreen big-screen mode.
• 🔊 Decibel Meter Measure ambient noise in decibels via your microphone with a live gauge and level readout, processed locally
• 🎲 Dice Roller A highly realistic 3D online dice roller: dice tumble, bounce and settle with real rigid-body physics on a wood-grain table, then the face-up pips are read automatically. Click the table or shake your phone to roll, choose 1-5 dice with an auto sum, enjoy synthesized roll sounds and a roll history — perfect for board games, drawing lots and random decisions.
• 🎨 DIY Merch Customizer Customize products online: pick a t-shirt, cap, mug, tote bag or phone case, choose any base color, drop artwork or add text onto the print area, preview it in real-life use, generate an AI photorealistic wear/use photo, and export a hi-res PNG.
• 📄 Document Scanner Capture with your camera or upload a photo of a paper document, receipt, or whiteboard. Auto four-corner perspective correction straightens it, with grayscale/B&W/color-boost filters, rotation and cropping, multi-page management, and one-click export to image or merged PDF — all processed locally in your browser.
• 🍳 Emoji Kitchen Mix two emoji from Google Emoji Kitchen to create fun sticker combinations. Download PNG or copy image for chat and social media creativity
• 😊 Emoji Search Search emoji by keyword or describe it in natural language with AI, click to copy, browse by category
• 📖 EPUB/TXT Converter Turn EPUB books into plain text, or pack a TXT novel into an EPUB with auto chapter detection — all in your browser
• 🌳 Family Tree Browser-based family tree maker: add members with parent and spouse relations and auto-render a generation-layered chart you can zoom and pan. Member photos are auto-compressed, all data is stored locally in IndexedDB, with JSON backup import/export and high-resolution PNG/SVG family chart export in multiple themes.
• 🎆 Fireworks Simulator A full-screen, physics-based fireworks simulator that bursts wherever you tap: natural launch, explosion, fall and afterglow in one lifecycle. Random real shapes (peony, ring, willow, heart, palm, crackle) and palettes, with auto play, finale barrage and sound toggle — relax and set a festive mood against the night sky
• 🪞 Funny Mirror Fun distortion mirror + voice changer for kids
• 🎞️ GIF Maker Create GIF animations online — import image frames or draw frame by frame with onion skin, timeline reorder, and export as GIF or WebP
• 📣 Handheld Danmaku Turn your phone into a cheer board with scrolling text
• ⏳ Hourglass High-fidelity hourglass countdown with grain-by-grain falling sand; tap or physically flip to restart
• 🫀 Human Anatomy Atlas Interactive 3D human anatomy atlas — rotate and zoom to explore bones, muscles, organs and body systems
• 🖍️ Image Annotator Annotate images online: upload a screenshot or mockup and overlay arrows, rectangles, circles, freehand, lines, text, numbered badges, measurements and mosaic blur. Paste or upload an image as a layer, resize the base image, move, scale, rotate and delete objects with full undo/redo, then export a PNG or copy to clipboard. All in your browser.
• 🖼️ Image Card Maker Turn text into beautiful image cards: add a title, body and signature, pick a template and ratio, see it live, then copy or download a PNG — rendered in your browser, nothing uploaded
• 🔍 Image Compare Compare two images online with slider drag, fade overlay, diff highlight, and side-by-side linked modes
• 🧠 IQ Test Standard IQ test covering pattern recognition, digit memory, vocabulary, logic, and spatial reasoning - scientific cognitive assessment in 25-30 minutes
• 🔆 Screen Always On Minimalist screen keep-awake tool using Wake Lock API with immersive fullscreen mode
• ⌨️ Keyboard Test Test if your keyboard keys work properly with visual layout highlighting and multiple layout support
• ⏳ Life Countdown Visualize your life progress and remaining time, converted into concrete life events
• 🌱 A Human Life A vertical timeline with emoji art showing key life milestones and bodily changes from conception to old age, locate your current stage and export a long image
• 🪄 Light Stick Turn your phone into a concert light stick — a glowing bar on a pure black fullscreen with steady/breathe/strobe/rainbow modes, glowing brighter as you wave
• ↕️ Line Sorter Sort text lines alphabetically, by length, or randomly
• 🔍 Magnifier Use your rear camera as a real-time magnifier with 1x–10x zoom, freeze frame, screenshot, torch, and color filters
• 📳 Massage Vibrator Multiple vibration massage modes with adjustable intensity and duration
• 🧠 Memory Trainer Browser-based memory training with four classic games — number memory, card match, Simon sequence and grid recall — three difficulties, sound & vibration feedback, local score history and trend chart
• 🎵 Metronome Precise online metronome with Web Audio scheduling, 20-300 BPM, Tap Tempo, 4 time signatures, and visual beat indicator
• 🎤 Mic Test Test your microphone online with real-time volume visualization and spectrum analysis
• 🎙️ Mini Recorder Lightweight online voice recorder with real-time waveform, pause/resume, customizable default mic/noise-suppression settings, rename recordings, auto-save locally, export WAV/MP3 or batch ZIP download
• 🗓️ Monthly Schedule Make a monthly business-hours calendar poster: mark closed days, events and special hours with colors and notes, add a header and background image, present fullscreen on a door screen or export as PNG. All data stays local.
• ✍️ AI Writer Multilingual AI writing assistant: polish and improve existing text, or generate high-quality text from a brief, with customizable target language and tone
• 🔎 Search Everywhere Type a query once and search across 80+ engines (Google, Bing, Perplexity AI, GitHub, YouTube and more). Open one or batch-open several, add custom engines. Runs fully in your browser
• 📦 My Belongings Personal belongings manager: record each item with quantity, location, notes and expiry date. Expiring and expired items are auto-highlighted, with instant search, tag filters, group-by-location view and photos. Data is stored locally in IndexedDB, never uploaded, with JSON backup import/export.
• ⚙️ My Device Info Comprehensive device inspector: public IP, geolocation, browser details, hardware specs (CPU/RAM/GPU/battery), API support, local IPs, and HTTP headers
• 🔗 My URLs Minimalist personal URL navigator with auto favicon, categories, drag-to-sort, and JSON import/export
• 🎹 Online Piano Browser-based online piano with Web Audio synthesis: keyboard/mouse/touch play, 4 sounds, sustain pedal, recording & WAV export
• 📻 Online Radio An immersive 3D globe radio. Drag to spin the Earth, scroll or pinch to zoom in on labelled countries, tap one to tune into that region, and see station names float as bubbles above their countries. Thousands of free live stations worldwide.
• 🔐 The Password Game A playful, educational password challenge: beat a chain of stacking, increasingly absurd and conflicting rules, unlocking them one by one until you win — with real password-security tips along the way and a true strength check at the end. All local; your password is never uploaded
• 🔒 Password Generator Generate secure random passwords with custom length and character sets
• 📅 Perpetual Calendar Multi-country calendar with public & traditional holidays, Chinese lunar dates, 24 solar terms, month/year/day views
• 🕰️ Phone Desk Clock Turn your phone into a beautiful desk clock with digital and analog modes
• 📸 How Good Is My Photo Upload one photo and an AI photography mentor scores composition, exposure, color, subject and sharpness, reads your real EXIF settings, and gives three fixes you can apply right now plus settings for next time.
• 🖼️ Photo Frame Realistic wooden photo frame mockup, 100% in-browser. Upload photos into single/double/triple frame layouts, pick a wood tone, wall color or a custom background image, drag frames freely and adjust shadow, then export an HD PNG.
• 🗂️ Photo Organizer Open a local photo folder and sift it by timeline, exact duplicates, near-duplicate bursts, blurry shots and large files, then clean up in one click. Everything is backed up before deletion and never leaves your device.
• 🖼️ Photo Slideshow Fullscreen photo slideshow with custom frames and fade transitions
• 🥧 The World of Pi Explore the first 1,000,000 digits of pi: browse every digit, find where your birthday hides, recite pi digit by digit, play the next-digit guessing game and see the 0–9 distribution
• 🍅 Pomodoro Timer Beautiful minimalist Pomodoro Timer with 25-min focus + 5-min break cycles, a draggable dial to set any 1–60 min countdown, screen wake lock and sound notifications
• 💹 Profit Calculator E-commerce profit calculator for Amazon, eBay, Mercari, Shopify and more. Instantly calculate profit margin, break-even price and suggested selling price
• 🗣️ Pronunciation Check Read a preset or custom English passage, get local speech recognition and a 4-dimension score (accuracy, fluency, pace, stability), plus AI-powered improvement tips
• 🏧 Quick Cashier Minimalist cash register helper — shows due amount and change in huge text for customers. Supports tax, round-down, and daily sales summary.
• 📝 🌐 Quiz Maker Make and share quizzes online: create single-choice, multiple-choice, true/false, fill-in-the-blank and short-answer questions, then generate one share link. Takers answer and get auto-graded with explanations; results are collected automatically, and a private manage link lets you edit questions and view results anytime. Ask AI for hints. No signup, browser-only, free.
• 🎲 Random Generator Batch generate random integers, strings, colors, and more
• 🎭 Personality Type Test Fun personality test based on 15 psychological dimensions, matching 27 unique personality types through scenario questions, results can be shared as beautiful images
• 🗓️ Schedule Planner Monthly calendar planner — click any date to add timed events with title, notes and color labels; switch to list view and export as Excel, .ics calendar file, image, Markdown or plain text
• 🗓️ 🌐 Time Poll Group poll like Japan\
• 🖥️ Screen Saver Browser-based screen saver simulator with snake animation, text scrolling, floating emojis, geometric patterns, and custom image bouncing. Enter fullscreen with Wake Lock to keep your display on
• 🖥️ Screen Test Multi-dimensional display test: solid colors, gradients, grayscale, color patterns and grids to detect dead pixels and display issues
• 🎯 🌐 Shared Tasks Goal and checklist collaboration tool: create a goal, break it into subtasks, and get a manage link plus a share link. Assignees check off items and add notes while you track progress, deadlines, and feedback in real time on one shared record
• 📝 Simple Notes Minimal online notepad with plain text and Markdown dual-mode editing, live preview, line numbers, auto-save to IndexedDB, fullscreen focus mode, font size control, and .txt/.md export
• 📏 Size Converter Aspect ratio and dimension calculator: lock the ratio and one side follows, resize to a target box, contain/cover fit math, and px/cm/mm/in/pt with DPI conversion — all instant in your browser
• 🌊 Sky to Seabed An immersive vertical scroll from the Moon, space and airliners down to the deepest ocean trench — scroll up into space and down into the deep sea, with an altitude ruler, live HUD and cartoon creature facts
• 🔊 Speaker Test Test your speakers and headphones with various audio tests and channel checks
• ⏱️ Stopwatch Precise online stopwatch with lap and split time recording
• 🌅 Sunrise & Sunset Times Check sunrise, sunset, moonrise, moonset times and daylight trends for any location. Quickly pick from 80+ world cities, GPS locate, or enter coordinates manually. Shows moon phase and illumination, works offline
• 🎛️ Synthesizer Browser-based online synthesizer with Web Audio API: dual oscillators with 4 wave types, ADSR envelope, LP/HP/BP filter, LFO modulation, piano keyboard, presets, WAV export
• 🔢 Tally Counter Online counting tool — group items, adjustable step, long-press continuous count, multi-plan management, drag-to-sort, undo/redo, perfect for inventory, attendance, and headcount
• 🗃️ Text Dedup Remove duplicate lines from text, with optional sorting
• 📋 Text Snippets Lightweight text snippet manager — save, categorize, search, and reuse text fragments instantly. Features multi-tag organization, real-time search, one-click copy, Markdown preview, batch operations, IndexedDB persistence, and JSON import/export for cross-device sync
• ⏱️ Time Calculator Calculate date intervals, convert time units, and add or subtract dates with instant, click-to-copy results
• 🗓️ Timesheet Online timesheet & attendance tracker: pick from clock-in/out, work-hours, project-time or attendance-status templates, fill by day and auto-total work hours, days present and overtime (overnight shifts supported), export to Excel/CSV/text or share a link. All data stays local.
• 🌍 Timezone Converter Convert times between world timezones with UTC offset display
• 👆 Touch Screen Test Comprehensive touch screen device testing: multi-touch, single-touch response, swipe trajectory, pressure sensing, and follow-up tracking with real-time visualization
• ⌨️ Typing Speed Test Online typing speed test with live WPM/CPM, accuracy, time and character count. English counts by word, Chinese/Japanese by character. Free mode and follow-text mode with per-character highlighting; reach 500 chars to join the global leaderboard
• 📏 Unit Converter Convert length, weight, temperature, area, and storage units
• 🔍 Universal Image Viewer View PSD/TIFF/HEIC/AVIF/RAW and 80+ image formats your browser can\
• 🪐 Universe Simulator A physically accurate 3D solar system in your browser: real J2000 Keplerian orbits, true rotation periods and axial tilts, the asteroid belt, Saturn rings with the Cassini division, Earth clouds and atmosphere, adjustable time flow and true-scale mode, plus fun fact cards
• 🎬 Video Converter Browser-based video format converter powered by FFmpeg.wasm. Convert between MP4, WebM, MKV, MOV, AVI and GIF, extract audio, and tune codec, CRF, resolution and frame rate. Nothing is uploaded.
• 🎞 Video Player Online video player supporting MP4/WebM and more. Playlist, fullscreen, picture-in-picture, subtitle loading, keyboard shortcuts — all local
• 📹 Video Recorder Browser-based camera recording tool. Switch front/rear camera, apply filters, countdown timer, take screenshots, export WebM/MP4
• 🎬 Video to Audio Extract audio from video files (MP4, WebM, MOV, etc.) as WAV, MP3 or AAC (M4A). Includes waveform preview, region trimming and channel options. Fully browser-based, no upload needed.
• 🗳️ Vote Counter Simple online vote tally — tap a candidate card to add +1, with live counts, percentages, ranking, an elected-results board, undo, sound and presentation mode
• 💰 How Rich Will I Be? Personal wealth forecaster: year-by-year compound simulation of your future net worth with a growth curve, yearly breakdown, wealth milestones and FIRE age. All local, nothing uploaded
• 🗄️ Web Archive Jump directly to Wayback Machine to explore historical snapshots of any website. Supports first snapshot, latest snapshot, and calendar view modes
• 🏷️ Batch File Rename Rename local files in bulk right in your browser — stack find/replace, numbering, regex, case and more rules, preview live, then download individually or as a ZIP. Files never leave your device
• 🍱 What to Eat Randomly pick today\
• 🎧 White Noise Multi-track ambient sound mixer. Blend rain, waves, birds, fire and more to create your perfect focus or sleep soundscape.
• 🎵 Winamp Player Classic Winamp 2.x style online audio player with detachable main/EQ/playlist windows, 10-band equalizer, real-time spectrum visualizer, drag-to-sort playlist, and external URL streaming
• 🃏 Flashcards Generate a deck from a plain-language prompt with AI (pick word/meaning languages and content). Paste an English article to auto-extract its words into a deck, plus custom bulk-import with custom fields. Flip 3D cards, study in sequential/random/unmastered modes, track mastery, TTS read-aloud, JSON/CSV import-export. Data stays local.

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