📖 教育學習工具

🧮 24 點求解器24 Point Solver 24 點求解器24 Point Solver - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Education & Learning tools. 📚 ASCII/Unicode/字符編碼轉換ASCII / Unicode / Character Encode Convert 在 ASCII、Unicode 碼點與字符之間互轉，顯示碼值與編碼，便於理解字符集與處理文本編碼問題。ASCII / Unicode / Character Encode Convert - convert values online, free and instant. Free online tool on ToolBox — 100% client-side, no data uploaded, no ... 🎓 GPA計算器GPACalculator GPA 計算器，支持多種 GPA 制度、學分加權與多學期累計，輔助學業成績統計與申請評估。Convert course grades or scores to GPA across US, Chinese and other scales. Add credits and letter or percentage grades for weighted result—free, browser-only. 📚 XML/HTML/CSS 格式化（已有，可補充）XML / HTML / CSS Format 在線 XML/HTML/CSS 代碼格式化與縮進美化工具，統一排版結構、校正層級縮進，便於閲讀審查與團隊協作，純前端處理不上傳。XML / HTML / CSS Format - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Education & Learnin... ✖️ 九九乘法表Multiplication Table 展示可交互的九九乘法表，支持點擊高亮與隨機出題計時練習，用於小學生乘法背誦與口算訓練。Multiplication Table - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Education & Learning t... 📝 作文字數統計Essay Word Counter 輸入作文文本，統計總字數、字符數與段落數等多維指標，便於對照字數要求與排版，適用於語文作業與考試。Essay Word Counter - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Education & Learning tools. 📚 單詞記憶Word Memory 單詞記憶器，基於艾賓浩斯遺忘曲線以卡片式記憶並支持多詞庫，輔助長期單詞 retention。Word Memory - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Education & Learning tools. 🎮 國家測驗Country Quiz 隨機考查國旗、首都或地理位置對應的國家，限時作答並判分，覆蓋全球主要國家，適合地理複習與趣味自測，純前端運行。Country Quiz - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Education & Learning tools. 🎮 國旗測驗Flag Quiz 隨機展示國旗要求選出對應國家，即時判分並累計成績，覆蓋常見國家，適合地理學習與國旗記憶訓練，純前端可重複練習。Flag Quiz - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Education & Learning tools. 📚 字數統計 / 字符統計 / 行數統計Stats 粘貼文本，實時統計字數、字符數與行數，支持中英文分別計數，便於寫作字數核對與文本預處理。Stats - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Education & Learning tools. 📅 學習計劃制定Study Planner 學習計劃制定器，支持科目管理、每日每週計劃與進度追蹤，輔助學習時間安排與自律管理。Study Planner - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Education & Learning tools. 📝 學習計劃時長分配Study Schedule Planner 輸入備考總時長及各學科難度或優先級權重，按比例分配每日或每週學習時長並生成可視化計劃，幫助學生在多科目間科學統籌複習進度。Plan study time allocation efficiently. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Education & Learning to... 🕐 當前本地時間Timezone Converter 🕐 當前本地時間Timezone Converter - convert values online, free and instant. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Edu... ⚖️ 成績加權計算器Grade Weight Calculator 成績加權計算器，按各科目權重加權求總評成績，輔助平時與考試分數綜合評定。Grade Weight Calculator - calculate online, free and accurate. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Ed... 📝 成績計算器Score Calculator 成績計算器，按平時/期中/期末加權求總分，並支持目標分數倒推所需期末分與排名估算。Score Calculator - calculate online, free and accurate. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Education... 🎮 打字遊戲Typing Game 按提示逐字輸入並計時統計正確率與速度（字/分），提供練習文本與錯題回看，適合提升打字熟練度，純前端運行。Typing Game - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Education & Learning tools. ⌨️ 拼音打字練習Pinyin Typing Practice 拼音打字練習器，提供中文打字練習與速度、正確率統計並支持多種文本，純前端運行、數據不上傳。Practice Chinese pinyin typing with on-screen prompts and instant feedback to build speed and accuracy. Runs in your browser, no install—free trainer. 📝 拼音轉換器Pinyin Converter 拼音轉換器，漢字轉拼音並識別多音字、支持批量轉換與速查，輔助識字與注音。Pinyin Converter - convert values online, free and instant. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Educa... 📚 摘要生成器（基於句子權重）Summary Generator 按句子權重抽取文本關鍵句生成摘要，可調摘要長度與句子數，適合長文速讀與要點提煉，純前端處理文本不上傳。Summary Generator - generate results online, free and instant. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Ed... 🔄 教育常用單位轉換器Education Unit Converter 教育單位轉換器，支持長度、重量、面積、體積、時間、角度等常用單位換算，輔助學習與生活計算。Education Unit Converter - convert values online, free and instant. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of t... 🔢 數字記憶訓練Number Memory Training 隨機生成數字序列，用户按出現順序回憶輸入，記錄最長長度與訓練成績，用於鍛鍊短期記憶力與專注力。Number Memory Training - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Education & Learning... 🎮 數學測驗Math Quiz 隨機生成加減乘除口算題，限時作答並自動判分，可設難度與題量，適合小學生算術練習與日常速算訓練，純前端運行。Math Quiz - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Education & Learning tools. 📚 文本去重 / 排序 / 反轉Text Deduplicate / Sort / Reverse 在線文本去重、按升序或降序排序、整體內容反轉工具，支持多行列表整理、數據清洗與文本預處理，純前端即時處理。Text Deduplicate / Sort / Reverse - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Education ... 📚 時區轉換（內置世界主要時區）Time Zone Convert 選擇源時區與時間點，轉換為世界主要城市的目標時間，自動處理跨日與夏令時，便於跨國溝通與行程安排。Time Zone Convert - convert values online, free and instant. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Educ... 📈 標準分Z分數Z-Score (Standard Score) Calculator 輸入原始分、均值與標準差計算 Z 分數與百分位，用於成績標準化比較與正態分佈定位，適合教學演示與測驗結果分析，純前端。Compute the z-score of a value in a dataset. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Education & Learni... ✏️ 漢字筆畫計數器Chinese Stroke Counter 輸入漢字，統計其總筆畫數並拆解基本筆畫（點橫豎撇捺折鈎提），輔助漢字書寫學習與書法練習。Chinese Stroke Counter - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Education & Learning... ✅ 測驗正確率百分比計算器Quiz Score Percentage 輸入答題總數與正確數，計算正確率百分比並給出成績等級與錯題分析，便於測驗後快速評估掌握情況。Quiz Score Percentage - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Education & Learning ... 🐲 生肖年份轉換器Chinese Zodiac 輸入年份，轉換對應生肖、天干地支與週歲年齡，並展示十二地支與十天干對照，便於瞭解傳統紀年文化。Chinese Zodiac - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Education & Learning tools. 📊 考試分數計算器Exam Fraction Calculator 輸入各科目分數與權重，計算總分、平均分與達標情況並支持目標分數規劃，用於考試成績分析與複習安排。Exam Fraction Calculator - calculate online, free and accurate. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the E... 📚 考試成績均分/排名/標準差Exam Score Average / Ranking / Std. Dev. 輸入一組考試成績，計算平均分、排名分佈與標準差，量化成績離散程度，用於班級學情分析與個體差異評估。Compute class average, ranking and standard deviation for exam scores. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part o... 🎯 考試成績目標計算Exam Score Target Calculator 輸入當前成績、剩餘考核權重與目標總分，倒推後續每次考試需達到的平均分，為複習重點提供量化參考。Find the score needed to hit your grade target. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Education & Lea... 🧠 艾賓浩斯記憶曲線複習計劃Ebbinghaus Curve 依據艾賓浩斯遺忘曲線生成複習時間點（如當天、第 2、4、7、15 天），幫助制定間隔重複計劃、提升記憶保持率。Ebbinghaus Curve - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Education & Learning tools. 📚 英語單詞測試English Vocabulary 英語單詞測試器，內置四六級/考研/託福詞庫隨機抽題測試並支持生詞本，純前端判分、數據不上傳，輔助背單詞。English Vocabulary - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Education & Learning tools. 📚 記憶宮殿虛擬格子位置編碼生成Generator 26 按規則生成記憶宮殿的虛擬格子與位置編碼序列，用於構建記憶掛鈎點，輔助地點法記憶訓練與素材組織。Generator 26 - generate results online, free and instant. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Educati... 📄 論文字數頁數換算Word Count Pages 輸入字數，按不同排版標準（字號、行距、頁邊距）估算文檔頁數，用於論文與報告篇幅規劃與格式核對。Word Count Pages - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Education & Learning tools. 📇 識字卡片Chinese Character Flashcards 識字卡片，翻轉卡片學習漢字與英文單詞(含拼音/音標/釋義)，支持鍵盤操作，適合兒童啓蒙與記憶。Free online flashcards for learning Chinese characters. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Education... 📚 進制轉換（2/8/10/16/36進制）Base Converter - ( 2 / 8 / 10 / 16 / 36 Base ) 在二進制、八進制、十進制、十六進制與三十六進制之間任意互轉，用於編程學習與數字系統轉換練習。Base Converter - ( 2 / 8 / 10 / 16 / 36 Base ) - convert values online, free and instant. Free online tool on ToolBox — 100% client-side, no data uploaded,... 📚 錯題本自動歸類與重練提醒Reminder 1 添加錯題後自動按學科和錯誤類型歸類，基於間隔重複算法(1/3/7/14天)安排複習，到期自動提醒。Reminder 1 - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Education & Learning tools. 📚 長度/重量/温度/面積/體積單位換算（內置公式）Length / Weight / Temperature / Area / Volume Unit Convert 在長度、重量、温度、面積、體積等常用單位間按內置公式互轉，覆蓋公制與英制，便於學習與日常量綱換算。Length / Weight / Temperature / Area / Volume Unit Convert - convert values online, free and instant. 📖 閲讀速度計算器Reading Speed Calculator 閲讀速度計算器，測量閲讀速度與分析效率(中文字/分鐘或英文 WPM)並評估理解率，輔助閲讀訓練。Measure reading speed in characters or words per minute and comprehension rate from text length and time. Supports Chinese and English—free, no upload. 📚 顏色代碼轉換（HEX/RGB/HSL/CMYK）Color Code Convert - ( HEX / RGB / HSL / CMYK ) 在 HEX、RGB、HSL 與 CMYK 之間互轉顏色代碼，輸入任一格式即得出其餘，適合設計與前端取色，純前端即時換算。Color Code Convert - ( HEX / RGB / HSL / CMYK ) - convert values online, free and instant. Free online tool on ToolBox — 100% client-side, no data uploaded... 🎮 顏色測驗Color Quiz 隨機顯示顏色要求選出名稱或 HEX 代碼，訓練色彩辨識與配色直覺，即時反饋正誤，適合設計入門與色彩記憶練習，純前端。Color Quiz - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Education & Learning tools. 🎮 首都測驗Capital Quiz 隨機出題考查各國首都，限時作答並即時判分，覆蓋各大洲國家，適合地理學習自測與課堂小測，純前端運行可重複練習。Capital Quiz - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Education & Learning tools. 📚 高考/考研倒計時（含工作日）Countdown 5 設置考試日期，統計剩餘總天數與工作日，記錄每日學習時長，追蹤備考進度。Countdown 5 - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Education & Learning tools.