One input, ask Doubao, Qianwen, Yuanbao, Deepseek + GPT simultaneously
Relax your mind with white noise
Classic poetry paired with layered wave animations in traditional Chinese colors
Tour the Forbidden City online from home
A super cute online Bongo Cat — play bongos, electric piano, marimba and more!
A Hatsune Miku themed interactive page — tap/touch to play sounds and reveal patterns
Generate beautiful music with just a few taps
Experience Windows XP right in your browser
A cool hacker-style keyboard
Balls bounce with sound levels — monitor noise intensity
Visualize ambient sound as a spectrum
Record or upload audio online and play it backwards
Turn your mic into a megaphone with real-time amplification, equalizer, echo, recording and voice change
Pat anything on the head (petpet meme generator)
Generate Alipay payment sound effects for any amount; download as notification or alarm ringtone
Tap the wooden fish anytime to accumulate merit
A drum kit is a set of percussion instruments centered on drums
A combo instrument made of buckets, pots, pot lids, cups and more
May all your troubles drift away with the fireworks
A super stress-relieving bubble wrap popper — pop online!
A portable online AC — instant cooling, eco-friendly, low power. The only downside: no actual wind~
Wishing you a little warmth
A cat that purrs
Translate human language into meow language
Translate human language into beast language
Come here to find your answer
A 60-second meditation to help you through tough moments
An essential tool for slacking off
Estimate your QQ number's value by digits, combinations and registration era
An online random maze generator that quickly creates varied maze patterns
Generate gorgeous fluid effects
Enter text, name, nickname or slogan and we'll generate an acrostic poem for you free online
Simping away until you end up with nothing
"Healing" lines that help you see life and yourself more clearly
What is a marketing account? This tool explains the meme and how it went viral!
Falling for you is something I want to spend my life telling you
Generates a rambling, nonsensical "long essay" — handy for testing text rendering in GUI dev
An article generator fluent in buzzwords like "empower, grip, closed-loop, precipitate, connect"
Dealing with someone who won't search? Let me Baidu it for you~
Draw a lot to learn your "coding fortune"
An online map of Zelda: Breath of the Wild — full collectibles map, explore every corner
Relax your mind with white noise
Tour the Forbidden City online from home
Turn your mic into a megaphone with real-time amplification, equalizer, echo, recording and voice change
An accurate kinship title calculator and relation lookup — a must-have for holiday visits
Enter a lunar or Gregorian birth date to compute days to next birthday, zodiac sign and more
Calculate BMI, estimate body fat and view ranges — all-in-one body composition analysis
A flexible expression calculator that evaluates input automatically, supports variables and JavaScript syntax
Enter values to compute mean, standard deviation, relative deviation and more, with frequency bar and line charts
Solve the eternal "what to eat" dilemma
Claim Meituan and Taobao flash-delivery red packets
Get coupons before shopping — save tens of thousands a year!
Come here to find your answer
Estimate your QQ number's value by digits, combinations and registration era
No download needed — record video, screen or audio online; save screen as GIF!
A spirit level you can use online, no app download
Tuner for guitar, bass, piano, guzheng and ukulele
Helps speakers, hosts, actors and streamers deliver smoothly without checking notes
A free, powerful online audio editor — open and edit any audio, with fade, cut, trim, volume and more
30+ operations: convert, resize, compress, extract audio, mute, to GIF, speed, rotate, flip, crop, thumbnail, reverse, fade, adjust, strip metadata, auto/embed subtitles, volume, loop, watermark, mix, concat, side-by-side, PiP, media info, fill, letterbox, normalize audio, denoise, ping-pong, sharpen, blur and more
Crop and edit images online, add filters and annotations
A beautiful pressure-sensitive online whiteboard
Fluid painting simulating an oil-painting effect
Compress GIFs online, reduce file size, with resize, frame dropping and quality adjustment
Generate uniquely styled glitch-effect images
Make images with rounded corners online
Auto-crop surrounding whitespace, optionally scale and export as transparent PNG
View a photo's EXIF shooting params, GPS location, device info and other metadata
An efficient, secure online image watermarking tool
30+ styles, fully customizable parameters, one-click unique avatars
Generate one-of-a-kind ugly-cute avatars
An online random maze generator that quickly creates varied maze patterns
An all-in-one online barcode generator supporting 100+ barcode types
Generate barcodes online: CODE128, EAN13, UPC, CODE39, ITF, MSI, Pharmacode and more
300+ retro fonts and custom layout — one-click cool ASCII art, with live preview, copy and TXT download
Generate gorgeous fluid effects
Enter text, name, nickname or slogan and we'll generate an acrostic poem for you free online
Keep your screen on and prevent sleep mode
Professionally test mouse buttons, wheel, movement trajectory and click speed — full performance check
Test every key, multi-key rollover (NKRO), typing and click speed — full keyboard check
Test every button, dual-stick deadzone and travel, triggers and vibration — full gamepad check
Professionally test your mic online — real-time volume, waveform, spectrum, noise floor and channels, with recording playback
Test left/right channels, frequency response, hearing-threshold curve, phase and audio quality — full audio device check
Test camera sharpness and focus, dead pixels and noise, white balance, with capture — full camera check
Online processor benchmark across eight dimensions — integer/float, prime sort, string and JSON — measuring single- and multi-core performance
Stress your GPU via WebGL real-time rendering, read model, capabilities and extensions, with self-test patterns
Detect phone/tablet accelerometer, gyroscope, magnetometer, light and orientation; also a level and compass — full motion sensor check
Test multi-touch, stroke dropouts, dead zones, gestures and pressure — full touchscreen check
A free online screen test tool with professional test sections for a full health check of your display
Fix monitor dead and bright pixels online via high-frequency random-color cycling animations
Measure true refresh rate and frame drops, generate a report (UFO Test)
One click to view resolution, refresh rate, color depth, gamut, PPI, aspect ratio and all screen parameters
Test phone and PC performance; weaker devices may freeze
The stronger the browser/PC, the more fish appear on screen
Vibrate your phone/device via the Vibration API, with custom duration and rhythm
View differences between two texts or code snippets and merge or modify them
Remove duplicate lines from text and count how many were duplicates
Convert plain text into decorated "chrysanthemum" or "sweating" font effects online
Dealing with someone who won't search? Let me Baidu it for you~
Enter a drive's nominal capacity to convert to OS-visible size and generate integer GiB partition plans
Look up a device's manufacturer from its MAC address
Look up a VIN/chassis number's vehicle origin, manufacturer and year
Query a phone number's region and carrier
Manage and generate TOTP one-time password tokens online
Generate a specified number of random passwords/characters of a given length per rules
Render a PDF into a realistic scanned look with grayscale, noise, shadow and slight rotation
Convert Word, Excel, PPT, PDF, HTML and more documents into Markdown — processed locally in your browser, nothing uploaded
Is your password safe? See how long it would take a hacker to crack it
Check your local IP and DNS info, verify DNS settings and detect DNS hijacking
All kinds of weird and wonderful symbols
Free online text recognition across scenes; reads common and most rare characters
Count characters, Chinese/English and punctuation, paragraphs and sentences, estimate reading time; copy results
Convert English strings to upper, lower, title case or inverted case
Check whether a domain is registered and view its detailed registration info
Query a site's global rank, traffic, visits and page views (Apppc ranking)
Check whether a domain is blocked or forbidden in WeChat
Query a domain's MIIT/MPS filing and filing number
Convert between Punycode and strings; encode/decode Chinese domains
Parse and break down a URL into its parts and parameters
Generate many patterned links by arithmetic/geometric sequences or letter changes
HTTP status codes are numeric identifiers of a server's response — learn them to quickly locate web, API or network issues
Fetch search engine dropdown suggestions — Baidu, Bing, Sogou, 360, Toutiao
Refresh a page on a schedule — for load testing or boosting page views
Generate responsive thumbnails across devices; preview a site's responsive look
Extract OS and browser info from a User-Agent
Accurately get the current client's OS and browser info
Convert JPG, PNG, GIF and other images into favicon ICO
Connect to a WebSocket and test WebSocket communication
Convert between Unix timestamps and datetime text
View differences between two texts or code snippets and merge or modify them
Dealing with someone who won't search? Let me Baidu it for you~
Generate many patterned links by arithmetic/geometric sequences or letter changes
Query an IP's physical location, country or city, down to an internet cafe, data center or school
Enter IP with subnet mask or CIDR to compute network/broadcast address, usable host range, count and wildcard mask
Enter a drive's nominal capacity to convert to OS-visible size and generate integer GiB partition plans
Look up a device's manufacturer from its MAC address
Convert Word, Excel, PPT, PDF, HTML and more documents into Markdown — processed locally in your browser, nothing uploaded
Check your local IP and DNS info, verify DNS settings and detect DNS hijacking
Format, validate and edit JSON; also convert JSON to XML, YAML and CSV
Convert XML format to JSON
Convert JSON format to XML
One-click format your HTML code online
One-click format your CSS code online
One-click format your JavaScript code online
One-click format your SQL code online
One-click format your XML code online
Remove comments from code, plus blank lines and leading/trailing whitespace
Compress and optimize SVG online; paste code or batch upload, all params customizable
Generate various dashed-border CSS effects online
A completely free online JS obfuscator with no limits — strongly protects your code
Online JS compress, eval encrypt/decrypt; restore eval(function(p,a,c,k,e,r){}) packed code
Convert JavaScript code into kaomoji (emoji-style faces)
Encode/decode JavaScript with jjEncode
An all-in-one online converter: Unicode, URL, UTF-8 and Base64 encode/decode
An all-in-one online CRC tool supporting CRC8/16/24/32/64 with customizable parameters
Batch UUID generation and UUID format validation
A web-based online serial port debugger with custom script interaction
Connect to a WebSocket and test WebSocket communication
Quickly and accurately check whether your regex matches the intended characters
Generate regex validation code for JS, PHP, Golang, Java, Ruby, Python, C# and C++
Display regex as a diagram for intuitive understanding and debugging
A collection of commonly used regular expressions
Want to see what's in your clipboard?
Press any key to see its KeyboardEvent key, code, keyCode, which, location, modifiers and Unicode, plus a full key code table
Convert between ASCII and characters, with a full ASCII table
Convert between any bases 2–36, including floating-point
Convert between Unix timestamps and datetime text
Convert variable naming styles: PascalCase, camelCase, snake_case, kebab-case, package style and more
Pick a folder and generate its directory tree online
Words programmers often mispronounce, with their correct pronunciation
Draw a lot to learn your "coding fortune"
An online all-purpose toolbox packed with handy mini-tools
一款经典耐玩的文字冒险游戏
试试你能打得过 AI 吗
8090后的童年回忆
Windows 纸牌游戏同款玩法
游戏中玩家必须控制一只胖乎乎的小鸟，跨越由各种不同长度水管组成的障碍
跳不过就压扁！
魔方与华容道、法国的独立钻石棋并称为智力游戏界的三大不可思议
通过滑动鼠标切碎积木块
消磨时间的小游戏，把球停在有颜色区域
微信经典飞机大战
谷歌浏览器断网时的恐龙小彩蛋
在哪里能玩到更多小游戏呢
工具哇! 
