Useful tools for everyday work. 日常工作，用顺手的工具。

↗ 1 Minute Timer1 分钟计时器 One minute countdown with alarm — perfect for planks, breathing exercises, speed rounds, and rest timers. Fullscreen display, runs in any browser, free.在浏览器中直接使用1 分钟计时器。 timernest ↗ 2 Minute Timer2 分钟计时器 Two minute timer with alarm — brush teeth the dentist way, enforce the 2-minute rule, steep tea, or time HIIT rests. Free fullscreen countdown.在浏览器中直接使用2 分钟计时器。 timernest 🔢 20482048 Slide the tiles, merge equal numbers, and build your way up to the legendary 2048 tile.滑动方块、合并相同数字，一路合成传说中的 2048！ playlite 🎂 Age Calculator年龄计算器 Calculate your exact age in years, months, and days from your date of birth — plus total weeks, days, hours, and a countdown to your next birthday.在浏览器中直接使用年龄计算器。 calcnest ◉ AllPic图片工具集 Compress, resize, convert, remove backgrounds, run OCR and more without uploading images.压缩、改尺寸、格式转换、抠图与 OCR，图片无需上传。 allpic ⚖️ BMI CalculatorBMI 计算器 Calculate your BMI instantly in kg/cm or lb/ft-in. See your weight category and the healthy weight range for your height, with WHO classification tables.在浏览器中直接使用BMI 计算器。 calcnest 🅱️ Bold Text粗体文字 Turn any text into 𝐛𝐨𝐥𝐝, 𝗯𝗼𝗹𝗱 𝘀𝗮𝗻𝘀, 𝙗𝙤𝙡𝙙 𝙞𝙩𝙖𝙡𝙞𝙘 and more Unicode bold fonts you can copy and paste into Instagram, Twitter/X, Discord, and anywhere else.在浏览器中直接使用粗体文字。 typenest 📐 CM to Inches厘米转英寸 Convert centimeters to inches instantly: divide by 2.54. Includes a cm-to-inches chart, height conversions to feet and inches, and worked examples.在浏览器中直接使用厘米转英寸。 calcnest 🔥 Calorie Calculator热量计算器 Find your daily calorie needs (TDEE) with the Mifflin-St Jeor equation. Get targets for weight loss, maintenance, and muscle gain based on your activity level.在浏览器中直接使用热量计算器。 calcnest 🌡️ Celsius to Fahrenheit摄氏度转华氏度 Convert Celsius to Fahrenheit: multiply by 9/5 and add 32. Instant converter with a °C-to-°F chart for weather, body temperature, and oven settings.在浏览器中直接使用摄氏度转华氏度。 calcnest 🪙 Coin Flip抛硬币 Flip a virtual coin with true 50/50 odds and a satisfying 3D animation. Session counter tracks heads vs tails. Free, instant, no app.在浏览器中直接使用抛硬币。 spinnest ◐ Color Picker在线取色器 Pick colors and copy HEX, RGB and HSL values.在浏览器中直接使用在线取色器。 huenest 📈 Compound Interest Calculator复利计算器 See how your money grows with compound interest. Set an initial amount, monthly contributions, interest rate, and time — get the future value and a year-by-year table.在浏览器中直接使用复利计算器。 calcnest 📅 Date Calculator日期计算器 Count the exact days, weeks, months, and years between two dates, or add and subtract days from any date to find a deadline. Fast, free, and precise.在浏览器中直接使用日期计算器。 calcnest ⏱ Epoch Converter时间戳转换 Convert Unix timestamps (seconds or milliseconds, auto-detected) to human-readable dates in local time, UTC, and ISO 8601 — and dates back to epoch. Live current timestamp.在浏览器中直接使用时间戳转换。 devnest T Fancy Text Generator花字生成器 Create copy-ready bold, cursive, gothic and aesthetic Unicode text.在浏览器中直接使用花字生成器。 typenest 🎓 GPA CalculatorGPA 计算器 Calculate your GPA on the 4.0 scale: add courses with credits and letter grades (A to F, with plus/minus) and get your exact grade point average.在浏览器中直接使用GPA 计算器。 calcnest 🌈 Gradient Generator渐变生成器 Design linear and radial CSS gradients visually: pick two colors and an angle, preview live, and copy the CSS in one click. Includes a random inspiration button.在浏览器中直接使用渐变生成器。 huenest 🔁 HEX to RGBHEX 转 RGB Convert HEX color codes to RGB and back instantly, with HSL included and a live preview. Supports 3- and 6-digit hex. Free and private.在浏览器中直接使用HEX 转 RGB。 huenest ❤️ Heart Symbols心形符号 Every heart symbol to copy and paste: classic ♥ and ♡, decorative ❦ ღ, and all heart emoji colors with their meanings. One tap to copy.在浏览器中直接使用心形符号。 glyphnest ✒️ Italic Text斜体文字 Convert text to 𝘪𝘵𝘢𝘭𝘪𝘤, 𝑖𝑡𝑎𝑙𝑖𝑐 𝑠𝑒𝑟𝑖𝑓, and 𝙗𝙤𝙡𝙙 𝙞𝙩𝙖𝙡𝙞𝙘 Unicode styles that work in Instagram bios, tweets, Discord, and anywhere you can paste text.在浏览器中直接使用斜体文字。 typenest { } JSON FormatterJSON 格式化 Format, validate, and minify JSON in your browser: pretty-print with your preferred indent, get exact error line and column, copy the result. Nothing is uploaded.在浏览器中直接使用JSON 格式化。 devnest 🏋️ KG to LBS千克转磅 Convert kilograms to pounds instantly: multiply by 2.20462. Includes a kg-to-lbs chart for body weight, luggage limits, and gym plates.在浏览器中直接使用千克转磅。 calcnest 💰 Loan Calculator贷款计算器 Free loan calculator: get your exact monthly payment (EMI), total interest cost, and a year-by-year amortization schedule for any loan amount, rate, and term.在浏览器中直接使用贷款计算器。 calcnest 🎴 Memory Match记忆翻牌 Flip the cards, find the pairs, and train your short-term memory.翻开卡片、找出配对，轻松锻炼你的短期记忆力。 playlite 🚗 Miles to KM英里转千米 Convert miles to kilometers instantly: multiply by 1.609. Chart included for road distances, running races, and speed limits in mph vs km/h.在浏览器中直接使用英里转千米。 calcnest 💣 Minesweeper扫雷 The legendary logic game: read the numbers, dodge the mines, clear the board.传奇逻辑游戏：读懂数字、避开地雷、扫清全盘。 playlite 🏠 Mortgage Calculator房贷计算器 Estimate your monthly mortgage payment including principal, interest, property taxes, home insurance, and HOA fees. See total interest over the life of the loan.在浏览器中直接使用房贷计算器。 calcnest ⏱ Online Timer在线计时器 Set a precise browser countdown with a clear alarm.在浏览器中直接使用在线计时器。 timernest 🔐 Password Generator密码生成器 Generate strong random passwords with custom length and character sets. Cryptographically secure, generated entirely in your browser — nothing is ever sent anywhere.在浏览器中直接使用密码生成器。 calcnest ％ Percentage Calculator百分比计算器 Solve any percentage problem instantly: what is X% of Y, X is what percent of Y, and percentage increase or decrease between two numbers. With formulas and examples.在浏览器中直接使用百分比计算器。 calcnest 🍅 Pomodoro Timer番茄钟 Run automatic focus and break cycles in your browser.在浏览器中直接使用番茄钟。 timernest 🤰 Pregnancy Due Date Calculator预产期计算器 Calculate your estimated due date from your last period, conception date, or IVF transfer. See how many weeks pregnant you are and your current trimester.在浏览器中直接使用预产期计算器。 calcnest 🎲 Random Number Generator随机数生成器 Generate truly random numbers in any range — one or many, with or without duplicates, sorted or shuffled. Uses your browser's cryptographic randomness.在浏览器中直接使用随机数生成器。 calcnest 💼 Salary to Hourly Calculator薪资时薪换算器 Convert an hourly wage to annual salary or an annual salary to an hourly rate. See weekly, bi-weekly, and monthly equivalents based on your real hours.在浏览器中直接使用薪资时薪换算器。 calcnest 🐍 Snake贪吃蛇 The timeless arcade classic: eat, grow, and don't bite your own tail.永不过时的街机经典：吃苹果、变长，别咬到自己的尾巴。 playlite ⭐ Star Symbols星星符号 Star symbols to copy and paste: classic ★ ☆, sparkles ✦ ✧ ⋆, shooting stars 彡, and star emoji. Tap to copy for ratings, bios, and aesthetics.在浏览器中直接使用星星符号。 glyphnest 🔄 Unit Converter单位转换器 Convert between metric and imperial units instantly: length, weight, temperature, volume, area, and speed — all in one free converter that works offline.在浏览器中直接使用单位转换器。 calcnest ◌ Wheel Spinner随机转盘 Paste choices and spin a fair random picker wheel.在浏览器中直接使用随机转盘。 spinnest ✍️ Word Counter字数统计器 Count words, characters (with and without spaces), sentences, and paragraphs as you type — plus estimated reading and speaking time. Free and private.在浏览器中直接使用字数统计器。 calcnest ❓ Yes or No Wheel是否转盘 Can't decide? Spin the yes/no wheel and let fair randomness answer. Add a 'maybe', spin again, or switch to custom options — free decision wheel.在浏览器中直接使用是否转盘。 spinnest ↗ 10 Minute Timer10 分钟计时器 Ten minute timer with alarm — hard-boiled eggs, pasta, power tidy, micro-naps, inbox sprints. Free online countdown with fullscreen display.在浏览器中直接使用10 分钟计时器。 timernest ↗ 15 Minute Timer15 分钟计时器 Fifteen minute timer with alarm — power naps, study sprints, meetings that end on time, kitchen checks. Free online countdown, fullscreen ready.在浏览器中直接使用15 分钟计时器。 timernest ↗ 20 Minute Timer20 分钟计时器 Twenty minute timer with alarm — naps, 20-20-20 eye breaks, baking and rice, focused writing blocks. Free online countdown with fullscreen.在浏览器中直接使用20 分钟计时器。 timernest ↗ 25 Minute Timer25 分钟计时器 Twenty-five minute pomodoro-length timer with alarm — one focused work block, workout circuits, batch cooking. Free online countdown, fullscreen ready.在浏览器中直接使用25 分钟计时器。 timernest ↗ 3 Minute Timer3 分钟计时器 Three minute timer with alarm — soft-boiled eggs, boxing rounds, lightning talks, tea and coffee steeping. Free online countdown with fullscreen.在浏览器中直接使用3 分钟计时器。 timernest ↗ 30 Minute Timer30 分钟计时器 Thirty minute timer with alarm — full workouts, real lunch breaks, weeknight cooking, deep cleans. Free online countdown with fullscreen display.在浏览器中直接使用30 分钟计时器。 timernest ↗ 45 Minute Timer45 分钟计时器 Forty-five minute timer with alarm — study periods, gym sessions, deep work blocks, roasting checkpoints. Free online countdown, fullscreen ready.在浏览器中直接使用45 分钟计时器。 timernest ↗ 5 Minute Timer5 分钟计时器 Five minute timer with alarm — meditation, pomodoro breaks, tea, warm-ups, classroom transitions. Free online countdown with fullscreen display.在浏览器中直接使用5 分钟计时器。 timernest ↗ 60 Minute Timer60 分钟计时器 One hour timer with alarm — deep work, bread proofing, full workouts, screen-free evenings. Free online 60 minute countdown with fullscreen display.在浏览器中直接使用60 分钟计时器。 timernest 🌸 Aesthetic Symbols美学符号 Soft aesthetic symbols to copy and paste: bows ୨୧, sparkles ✧ ₊˚, flowers ✿ ❀, dividers, borders and bio decorations for Instagram, TikTok, and Discord.在浏览器中直接使用美学符号。 glyphnest ✨ Aesthetic Text美学文字 Aesthetic fonts and decorations to copy and paste: sparkles ✦·˚, stars ★彡, hearts ♡, frames and soft styles for bios, captions, and usernames.在浏览器中直接使用美学文字。 typenest 🎯 Aim Trainer瞄准训练 Test how fast and how accurately you can hit a moving target — pick 30 targets or 60 seconds and go.测试你击中目标的速度与精准度——选择 30 个目标或 60 秒挑战。 playlite ➤ Arrow Symbols箭头符号 Arrow symbols to copy and paste: → ← ↑ ↓, double ⇒, curved ↪, heavy ➜ ➤ and more. Every direction, one tap to copy.在浏览器中直接使用箭头符号。 glyphnest 🧮 Average Calculator平均数计算器 Paste a list of numbers and instantly get the mean, median, mode, range, sum, min, and max. Learn which average to use and when.在浏览器中直接使用平均数计算器。 calcnest 🫀 BMR Calculator基础代谢率计算器 Calculate your basal metabolic rate with both the Mifflin-St Jeor and Harris-Benedict equations — the calories your body burns at complete rest.在浏览器中直接使用基础代谢率计算器。 calcnest 🔤 Base64 Encode/DecodeBase64 编解码 Encode text to Base64 and decode Base64 to text, with full Unicode/UTF-8 support — emoji and Chinese included. Live, private, in-browser.在浏览器中直接使用Base64 编解码。 devnest 🟦 Block Puzzle方块拼图 Drag pieces onto the 10×10 board and clear full rows and columns — no timer, pure strategy.把方块拖进 10×10 棋盘，填满整行整列即可消除——没有倒计时，纯策略。 playlite 📏 Body Fat Calculator体脂率计算器 Estimate your body fat percentage with just a tape measure using the U.S. Navy circumference method. Includes category ranges for men and women.在浏览器中直接使用体脂率计算器。 calcnest 🧱 Brick Breaker打砖块 Bounce the ball, smash every brick, and keep the rally alive.反弹小球、击碎所有砖块，别让球落地！ playlite 🫧 Bubble Shooter泡泡龙 Aim, bounce off the walls, and pop clusters of three or more matching bubbles before they reach the bottom.瞄准、借助墙壁反弹，在泡泡触底之前把三个及以上同色泡泡连片消除。 playlite 🫧 Bubble Text气泡文字 Make ⓑⓤⓑⓑⓛⓔ letters and 🅑🅛🅐🅒🅚 bubble text to copy and paste — circled Unicode alphabets for playful bios, comments, and usernames.在浏览器中直接使用气泡文字。 typenest • Bullet Points项目符号 Bullet point symbols to copy and paste: classic •, hollow ◦, squares ▪, triangles ‣ ▸, diamonds ◆, and decorative bullets for lists anywhere.在浏览器中直接使用项目符号。 glyphnest 🔠 Case Converter英文大小写转换 Convert text between 10 cases live: UPPER, lower, Title, Sentence, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, and aLtErNaTiNg.在浏览器中直接使用英文大小写转换。 devnest ✅ Check Marks勾选符号 Check mark and cross symbols to copy and paste: light ✓, heavy ✔, emoji ✅, ballot boxes ☑ ☒, and crosses ✗ ✘ ❌. One tap to copy.在浏览器中直接使用勾选符号。 glyphnest 🖱️ Click Speed Test点击速度测试 Find out how many times you can click in a set window — from a lightning 1 second to a marathon 60.在 1 秒到 60 秒的时间窗口里，看看你能点击多少次。 playlite ♿ Contrast Checker颜色对比度检查 Check text and background color contrast against WCAG accessibility standards. Live preview, exact ratio, and pass/fail for AA and AAA at both text sizes.在浏览器中直接使用颜色对比度检查。 huenest 💱 Currency Symbols货币符号 All currency symbols to copy and paste: dollar $, euro €, pound £, yen ¥, rupee ₹, won ₩, bitcoin ₿ and 20+ more, with what each one is.在浏览器中直接使用货币符号。 glyphnest 💌 Cursive Text手写体文字 Turn text into flowing 𝒸𝓊𝓇𝓈𝒾𝓋𝑒 and 𝓫𝓸𝓵𝓭 𝓬𝓾𝓻𝓼𝓲𝓿𝓮 script you can copy and paste into Instagram, TikTok bios, invitations, and usernames.在浏览器中直接使用手写体文字。 typenest 🌡️ Degree Symbol度数符号 Copy the degree symbol ° with one tap, plus °C, °F, and angle marks ′ ″. How to type ° on Windows (Alt+0176), Mac, iPhone, and Android.在浏览器中直接使用度数符号。 glyphnest 🎲 Dice Roller在线掷骰子 Roll up to 10 virtual dice with 4 to 20 sides — fair crypto randomness, instant totals. Perfect for board games, D&D, and classrooms.在浏览器中直接使用在线掷骰子。 spinnest 🏷️ Discount Calculator折扣计算器 Calculate the final price after a percent-off discount — including stacked discounts like an extra 20% off already-reduced items. See exactly how much you save.在浏览器中直接使用折扣计算器。 calcnest 🦖 Endless Runner跑酷冲刺 Jump, duck, and outrun an endlessly accelerating side-scroller — how far can you go before you crash?角色自动奔跑，你只负责跳跃和下蹲——躲过障碍，看看自己能跑多远。 playlite 🧊 Fahrenheit to Celsius华氏度转摄氏度 Convert Fahrenheit to Celsius: subtract 32, then multiply by 5/9. Instant converter with an °F-to-°C chart for weather, fevers, and cooking.在浏览器中直接使用华氏度转摄氏度。 calcnest 🟥 Falling Blocks方块下落 Rotate and stack seven falling shapes, clear full lines, and keep up as the pace speeds up.旋转、堆叠七种下落方块，消除整行，并跟上越来越快的节奏。 playlite 🏔️ Feet to Meters英尺转米 Convert feet to meters instantly: multiply by 0.3048. Chart for heights, ceilings, altitude, and building sizes — with feet-and-inches support explained.在浏览器中直接使用英尺转米。 calcnest 🔴 Four in a Row四子棋 Drop your discs, line up four in a row before your opponent, and test an AI that thinks several moves ahead.轮流落子，率先连成四子成一线，还能挑战会「多想几步」的电脑对手。 playlite ➗ Fraction Calculator分数计算器 Add, subtract, multiply, and divide fractions with automatically simplified answers, mixed numbers, and decimal equivalents. Step-by-step rules included.在浏览器中直接使用分数计算器。 calcnest 🦇 Gothic Text哥特文字 Create 𝔤𝔬𝔱𝔥𝔦𝔠 (Fraktur), 𝖇𝖔𝖑𝖉 𝖌𝖔𝖙𝖍𝖎𝖈, and 𝕠𝕦𝕥𝕝𝕚𝕟𝕖 blackletter-style text to copy and paste — the old English look for usernames, bios, and posts.在浏览器中直接使用哥特文字。 typenest 📝 Grade Calculator成绩计算器 Work out your weighted course grade from assignments and exams, or calculate exactly what score you need on the final to hit your target grade.在浏览器中直接使用成绩计算器。 calcnest ✏️ Hangman猜字母 Guess the hidden word one letter at a time before the drawing is complete — six wrong guesses and it's over.一次猜一个字母，在绞刑架图案画完之前猜出隐藏的单词——六次机会，别猜错太多次。 playlite #️⃣ Hash Generator哈希生成器 Generate MD5, SHA-1, SHA-256, and SHA-512 hashes of any text instantly in your browser. With honest guidance on which hashes are still safe to use.在浏览器中直接使用哈希生成器。 devnest 🕘 Hours Calculator工时计算器 Calculate hours worked between a start and end time, minus breaks — including overnight shifts. Results in hours:minutes and decimal hours for timesheets.在浏览器中直接使用工时计算器。 calcnest 🎯 Ideal Weight Calculator理想体重计算器 Find your ideal body weight by height and sex using four medical formulas (Devine, Robinson, Miller, Hamwi) plus the healthy BMI range.在浏览器中直接使用理想体重计算器。 calcnest 📏 Inches to CM英寸转厘米 Convert inches to centimeters instantly: multiply by 2.54. Includes an inches-to-cm chart for common sizes — screens, paper, frames, and fractions of an inch.在浏览器中直接使用英寸转厘米。 calcnest 🛣️ KM to Miles千米转英里 Convert kilometers to miles instantly: multiply by 0.6214. Chart included for race distances, road signs, and km/h to mph speed conversions.在浏览器中直接使用千米转英里。 calcnest (◕‿◕) Kaomoji日式颜文字 Cute kaomoji to copy and paste: happy (≧▽≦), sad (╥_╥), love (♡°▽°♡), angry (╯°□°）╯︵ ┻━┻, animals ʕ•ᴥ•ʔ and more Japanese emoticons.在浏览器中直接使用日式颜文字。 glyphnest 🧳 LBS to KG磅转千克 Convert pounds to kilograms instantly: divide by 2.20462 (or multiply by 0.4536). Chart included for body weight, dumbbells, and shipping weights.在浏览器中直接使用磅转千克。 calcnest 😏 Lenny FaceLenny 颜文字 The Lenny face ( ͡° ͜ʖ ͡°) and every variant to copy and paste: winking, flexing, sunglasses, crying, and the whole smug family.在浏览器中直接使用Lenny 颜文字。 glyphnest 📄 Lorem Ipsum占位文本生成器 Generate lorem ipsum placeholder text: choose paragraphs and words per paragraph, start with the classic opening, copy in one click.在浏览器中直接使用占位文本生成器。 devnest 🥤 ML to OZ毫升转液体盎司 Convert milliliters to US fluid ounces instantly: divide by 29.574. Chart for drinks, cooking, baby bottles, and travel-size liquids under 100 ml.在浏览器中直接使用毫升转液体盎司。 calcnest 🀄 Mahjong Solitaire麻将连连看 Clear the layered tile pyramid by matching identical pairs — but only 'free' tiles can be taken.消除层层堆叠的麻将牌塔——但只有「空闲」的牌才能被选中。 playlite 💎 Match 3宝石消消乐 Swap neighboring gems to line up three or more, chain cascades, and rack up combo bonuses before time or moves run out.交换相邻宝石凑成三消，串联连锁获得连击加分，赶在时间或步数用完之前拿下高分。 playlite ∑ Math Symbols数学符号 Math symbols to copy and paste: operators ± × ÷, comparison ≠ ≤ ≥ ≈, roots and powers √ ² ³, sets ∈ ∪ ∩, calculus ∫ ∂ ∑, Greek π, and fractions ½ ¾.在浏览器中直接使用数学符号。 glyphnest 🗼 Meters to Feet米转英尺 Convert meters to feet instantly: multiply by 3.2808. Chart for heights, pools, mountains, and buildings — plus meters to feet-and-inches conversions.在浏览器中直接使用米转英尺。 calcnest 🪞 Mirror Text镜像文字 Mirror your text left-to-right (ɿoɿɿim) with flipped Unicode lookalikes — reversed writing for bios, art posts, and da Vinci-style notes.在浏览器中直接使用镜像文字。 typenest 🎵 Music Symbols音乐符号 Music note symbols to copy and paste: ♪ ♫ ♩ ♬, treble clef 𝄞, sharps and flats ♯ ♭, and music emoji for bios, captions, and lyrics posts.在浏览器中直接使用音乐符号。 glyphnest 🧠 Number Memory数字记忆 Watch a number, watch it disappear, then type it back from memory — one mistake ends the run.看一眼数字，它消失后凭记忆输入回去——一次输错，挑战就结束。 playlite 🧴 OZ to ML液体盎司转毫升 Convert US fluid ounces to milliliters instantly: multiply by 29.574. Chart for recipes, cocktails, cosmetics, and drink sizes from a shot to a gallon.在浏览器中直接使用液体盎司转毫升。 calcnest ⏲ Online Stopwatch在线秒表 Track elapsed time and laps to the hundredth of a second.在浏览器中直接使用在线秒表。 timernest 🎛️ Palette Generator配色方案生成器 Generate color palettes from any base color: complementary, analogous, triadic, tetradic, split-complementary, and monochrome — click any swatch to copy its hex.在浏览器中直接使用配色方案生成器。 huenest 🎯 Random Name Picker随机抽名 Paste a list of names and pick one or more winners at random — with a suspense animation and confetti. Perfect for giveaways, raffles, and classrooms.在浏览器中直接使用随机抽名。 spinnest 👥 Random Team Generator随机分组 Paste names, choose team count, and split into balanced random teams instantly. Re-shuffle until happy — great for sports, class projects, and game night.在浏览器中直接使用随机分组。 spinnest ⚡ Reaction Time Test反应速度测试 Measure your visual reaction speed in milliseconds — 5 rounds, instant results.以毫秒为单位测量你的视觉反应速度——5 轮取平均，即时出结果。 playlite 🧾 Sales Tax Calculator销售税计算器 Add sales tax, VAT, or GST to a price — or extract the tax from a tax-inclusive total. Works with any rate and shows the exact tax amount.在浏览器中直接使用销售税计算器。 calcnest 🎨 Shades of Blue蓝色色阶 26 shades of blue with names and hex codes — from Navy to Ice Blue. Click any swatch to copy its hex instantly.在浏览器中直接使用蓝色色阶。 huenest 🎨 Shades of Gray (and Black)灰黑色阶 28 shades of gray with names and hex codes — from Black to White. Click any swatch to copy its hex instantly.在浏览器中直接使用灰黑色阶。 huenest 🎨 Shades of Green绿色色阶 26 shades of green with names and hex codes — from Dark Green to Tea Green. Click any swatch to copy its hex instantly.在浏览器中直接使用绿色色阶。 huenest 🎨 Shades of Orange橙色色阶 26 shades of orange with names and hex codes — from Burnt Orange to Sandy Brown. Click any swatch to copy its hex instantly.在浏览器中直接使用橙色色阶。 huenest 🎨 Shades of Pink粉色色阶 26 shades of pink with names and hex codes — from Magenta to Millennial Pink. Click any swatch to copy its hex instantly.在浏览器中直接使用粉色色阶。 huenest 🎨 Shades of Purple紫色色阶 26 shades of purple with names and hex codes — from Deep Purple to Periwinkle Purple. Click any swatch to copy its hex instantly.在浏览器中直接使用紫色色阶。 huenest 🎨 Shades of Red红色色阶 26 shades of red with names and hex codes — from Maroon to Misty Rose. Click any swatch to copy its hex instantly.在浏览器中直接使用红色色阶。 huenest 🎨 Shades of Yellow黄色色阶 26 shades of yellow with names and hex codes — from Dark Goldenrod to Ivory. Click any swatch to copy its hex instantly.在浏览器中直接使用黄色色阶。 huenest 🔀 Sliding Puzzle数字华容道 Slide the numbered tiles into order — the classic 15-puzzle in three sizes.把打乱的数字滑回正确顺序——经典 15 数码谜题，三种尺寸。 playlite 🐌 Slug Generator网址短名生成器 Turn any title into a clean URL slug: lowercase, hyphens, accents stripped (Crème → creme). Live conversion with one-click copy.在浏览器中直接使用网址短名生成器。 devnest 🤏 Small Text小型文字 Convert text to ꜱᴍᴀʟʟ ᴄᴀᴘꜱ and ᵗⁱⁿʸ superscript — small font styles to copy and paste into bios, tweets, and aesthetic posts.在浏览器中直接使用小型文字。 typenest 🃏 Solitaire纸牌接龙 Classic Klondike solitaire: build the foundations by suit, clear the tableau, and beat your best time.经典 Klondike 纸牌接龙：按花色搭建基础堆，清空整个牌桌，挑战你的最快纪录。 playlite 🔲 Square Text方框文字 Generate 🄰🄱🄲 squared letters and 🅰🅱🅲 filled square text to copy and paste — boxed Unicode alphabets for bold usernames and headers.在浏览器中直接使用方框文字。 typenest 📊 Standard Deviation Calculator标准差计算器 Compute sample and population standard deviation, variance, and mean from any list of numbers — with the formulas and when to use each version.在浏览器中直接使用标准差计算器。 calcnest ✂️ Strikethrough删除线文字 Cross out text with Unicode: s̶t̶r̶i̶k̶e̶t̶h̶r̶o̶u̶g̶h̶, s̴l̴a̴s̴h̴ and t̷i̷l̷d̷e̷ styles that paste into Twitter, Instagram, Discord — no formatting needed.在浏览器中直接使用删除线文字。 typenest 🧩 Sudoku数独 Fresh, unique-solution puzzles in three difficulties — the world's favorite number game.三种难度、保证唯一解的全新题目——全球最受欢迎的数字谜题。 playlite ⭕ Tic-Tac-Toe井字棋 Three in a row wins — play a friend, or try to outsmart a perfect AI.三连即胜——和朋友对战，或挑战一个永不失误的 AI。 playlite ⏱️ Time Calculator时间计算器 Add or subtract times in hours, minutes, and seconds without base-60 headaches. Get results as h:m:s and as decimal hours, minutes, or seconds.在浏览器中直接使用时间计算器。 calcnest 🐜 Tiny Text迷你文字 Make ᵗⁱⁿʸ ᵗᵉˣᵗ with superscript Unicode letters — miniature floating font to copy and paste for captions, bios, and subtle asides.在浏览器中直接使用迷你文字。 typenest 🍽️ Tip Calculator小费计算器 Calculate the tip, total bill, and per-person share in seconds. Pick a tip percentage, enter the number of people, and split the bill fairly.在浏览器中直接使用小费计算器。 calcnest ⌨️ Typing Speed Test打字速度测试 Measure your typing speed and accuracy in real time — pick 15, 30 or 60 seconds and watch your WPM climb.实时统计你的打字速度和准确率——选择 15 秒、30 秒或 60 秒，看看自己能打多快。 playlite 🔗 URL Encode/DecodeURL 编解码 URL-encode and decode text live: spaces, unicode, and special characters to percent-encoding and back. Understand %20 vs + and encodeURIComponent.在浏览器中直接使用URL 编解码。 devnest 🆔 UUID GeneratorUUID 生成器 Generate cryptographically random UUID v4 identifiers — one or up to 100 at once, copy-ready. Learn the format and collision math.在浏览器中直接使用UUID 生成器。 devnest 📏 Underline Text下划线文字 Underline any text with Unicode combining marks: single u̲n̲d̲e̲r̲l̲i̲n̲e̲ or double u̳n̳d̳e̳r̳l̳i̳n̳e̳ that paste into bios, tweets, and chats.在浏览器中直接使用下划线文字。 typenest 🙃 Upside Down倒置文字 Flip your text upside down (ʇxǝʇ uʍop ǝpᴉsdn) and reverse it — a classic trick for bios, pranks, and playful posts. Copy and paste anywhere.在浏览器中直接使用倒置文字。 typenest 🌴 Vaporwave Text蒸汽波文字 Make ｖａｐｏｒｗａｖｅ fullwidth text and aesthetic styles to copy and paste — the wide retro look from vaporwave art, bios, and playlists.在浏览器中直接使用蒸汽波文字。 typenest 🐹 Whack-a-Mole打地鼠 30 seconds, nine holes, endless moles — how fast are your reflexes?30 秒、九个洞、无穷的地鼠——你的反应够快吗？ playlite 🔤 Word Guess猜单词 Guess the hidden five-letter word in six tries — unlimited rounds, no daily limit.六次机会猜出隐藏的五字母英文单词——不限次数，想玩多少局玩多少局。 playlite 👁️ Zalgo Text故障文字 Create zalgo (glitch/cursed) text with adjustable chaos — stacked combining marks that drip and crawl. Copy and paste the corruption anywhere.在浏览器中直接使用故障文字。 typenest