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Tools for Student

Handpicked utilities for Student — 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
• 🎵 Beat Visualizer Mic-powered music visualizer with particles, spectrum, waveform, polar & 3D sphere effects
• 📚 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.
• ✅ 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.
• 📐 Common Sizes Standard dimensions of everyday objects including paper, furniture, electronics, and human body data
• ⏰ 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
• 📄 Doc Reader Online DOCX reader. View Word documents in the browser without installing Microsoft Office. Renders headings, tables, images, and all formatting. Files stay local.
• 📄 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.
• 📖 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
• 📣 Handheld Danmaku Turn your phone into a cheer board with scrolling text
• 🫀 Human Anatomy Atlas Interactive 3D human anatomy atlas — rotate and zoom to explore bones, muscles, organs and body systems
• ⏳ 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
• 🎡 Lucky Wheel Customizable spinning wheel with weighted probability, images, and history
• 🔍 Magnifier Use your rear camera as a real-time magnifier with 1x–10x zoom, freeze frame, screenshot, torch, and color filters
• 📚 Markdown Tutorial Interactive guided lessons to learn Markdown step by step
• 🧠 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
• 🧠 Mind Map Full-screen mind map editor with multi-level nodes, emoji insertion, node coloring, auto-save, PNG/JSON export
• ✍️ 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 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
• 📝 PDF Editor Add text, images, shapes, handwritten signatures, highlights, comments and redactions to any PDF, then export a new file. Redacted pages are rasterized so hidden text cannot be copied or searched. Fully in-browser.
• 📑 PDF Reader Browser-based PDF reader with Canvas rendering, zoom, navigation, table of contents, full-text search and reading progress — no upload required
• 🖼️ PDF to Image Render each PDF page as a high-quality image. Choose PNG/JPG/WebP, DPI, and quality. Download pages individually or as a ZIP. Fully in-browser.
• 📅 Perpetual Calendar Multi-country calendar with public & traditional holidays, Chinese lunar dates, 24 solar terms, month/year/day views
• 📸 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.
• 🥧 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
• 🗣️ 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 Todo Lightweight todo list with priority, due date, and category tags — export/import JSON for cross-device sync, saved locally
• 📝 🌐 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.
• 📄 Resume Builder Build a polished resume online — multiple templates, live A4 preview, export PNG/PDF or print
• 🗓️ 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\
• 🎯 🌐 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 Reader Immersive reading experience for plain text, Markdown, and EPUB. Custom fonts, themes, TTS, and text highlighting.
• 🌊 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
• ⏱️ Stopwatch Precise online stopwatch with lap and split time recording
• 🎛️ 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
• ⏱️ Time Calculator Calculate date intervals, convert time units, and add or subtract dates with instant, click-to-copy results
• ⌨️ 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
• 🪐 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
• 🗄️ Web Archive Jump directly to Wayback Machine to explore historical snapshots of any website. Supports first snapshot, latest snapshot, and calendar view modes
• 🍱 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.
• 🖼️ Whiteboard Online whiteboard with infinite canvas, pen, shapes, text, sticky notes, pan & zoom
• 🎵 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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