968T Toolbox
Offering various practical tools covering text processing, developer tools, encoding conversion, security tools, image processing, color tools, and more. All tools run locally in your browser, no registration required, protecting your privacy.
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Text Processing
Markdown Editor
Pro-grade online Markdown editor. Supports GFM, [TOC] Table of Contents, Mermaid diagrams, KaTeX math formulas, footnotes, and code highlighting with 100% local privacy.
Mermaid Editor
Professional free online Mermaid diagram editor. Supports various diagram types, live preview, classic/hand-drawn styles, and image export with total local privacy.
Chinese Pinyin Converter
Online Chinese Pinyin converter with manual polyphonic toggle and multiple layouts.
Pinyin to Chinese
Find all matching Chinese characters corresponding to given pinyin syllables.
Chinese Stroke Order
Online Chinese stroke order animation and writing practice with customizable colors, speed, and multi-char mode.
Chinese Stroke Query
Enter characters to display stroke animations and step-by-step writing diagrams.
Cantonese Pinyin Converter
Convert Chinese characters to Cantonese Jyutping with polyphonic switching, number tone notation and various format options.
Markdown to Mind Map
Instantly convert Markdown to interactive mind maps with LaTeX, code highlighting, and multi-format export.
Text Deduplicator
Online text deduplicator with line/paragraph modes, multiple sorting options, and real-time statistics.
Chinese Converter
Accurate Simplified/Traditional Chinese converter supporting Mainland, Hong Kong, and Taiwan standards.
Mars Text Converter
Convert between Simplified, Traditional, and Mars Text for personalized expression.
Word Counter
All-in-one text counter for precise calculation of words, characters, lines, sentences, and more.
Word Frequency
Professional word frequency analyzer for Chinese and English keyword extraction and sorting.
Case Converter
All-in-one text case converter: Uppercase, Lowercase, Title Case, CamelCase, Snake_case, and more.
Fullwidth Halfwidth Converter
Quickly convert between fullwidth and halfwidth for letters, numbers, and punctuation.
Number-English Converter
Bidirectional number-English conversion with support for negatives, decimals, and large values.
Text Find & Replace
Online text find and replace tool with RegExp support, case sensitivity, and batch processing. 100% local.
Email Extractor
Bulk email extraction and format validation with dedupe and case normalization.
Mobile Number Extractor
Bulk extract mainland China mobile numbers with dedupe, formatting, and masking.
Text Compare
Online text compare tool with line-level diff highlighting and similarity stats, 100% local.
Text Reverser
Lightweight text reverser for characters, words, and lines.
Whitespace Cleaner
Trim line edges and collapse blank lines in text.
Text Cleaner
Clean text by Chinese/English/numbers/symbols with space/line/newline control.
Text Shuffler
Shuffle characters, words, or lines with instant randomization.
Text Line Sorter
Sort text lines with dedupe, case-insensitive, and numeric options.
Text Line Numberer
Add configurable line numbers to multiline text.
Text Prefix/Suffix Adder
Batch add prefixes and suffixes to each text line.
Lorem Ipsum Generator
Generate configurable Lorem Ipsum placeholder text.
Random Name Generator
Generate Chinese or English names with gender and uniqueness options.
Emoji Collection
Full category Emoji library with Chinese/English search and one-click copy.
Special Symbols Collection
Category browsing and bilingual search with one-click copy.
Markdown TOC Generator
Extract Markdown headings and generate TOC with level filtering and styling options.
Fancy Text Converter
25+ fancy text styles: Script, Gothic, Double Struck, Small Caps, Flip text and more. One-click copy for any platform.
Kaomoji Collection
A polished kaomoji library with search, favorites, recents, and one-click copy.
Developer Tools
JSON Formatter
Pro JSON formatter with support for beautifying, minifying, validating, sorting, Unicode conversion, and escaping. 100% local and secure.
JSON Validator
Real-time JSON validation with precise error location, formatting, and download.
JSONPath Tester
Extract and filter data from JSON using JSONPath syntax with live preview and formatting.
JSON to TypeScript
Generate TypeScript interface/type from JSON.
JSON/YAML Converter
Bidirectional JSON/YAML conversion with live preview and local processing.
JSON/CSV Converter
Bidirectional JSON/CSV conversion with selectable delimiter and live output.
CSV Viewer
Preview and format CSV with multi-encoding, stats, and JSON export.
XML Formatter
All-in-one XML beautifier, minifier, and validator for clean output.
XML/JSON Converter
Bidirectional XML/JSON conversion with attribute and text support.
HTML Formatter & Minifier
One-click HTML beautification and minification for better readability and performance.
CSS Formatter & Minifier
Support one-click beautification, normal minification, and full minification of CSS code to enhance development efficiency and web performance.
JS Formatter & Compressor
All-in-one online tool for JS formatting, minification, obfuscation, and beautification. Supports multiple config options with real-time stats and 100% local processing.
JS Obfuscator
Professional JS obfuscator with multi-level encryption, control flow flattening, and code protection for enhanced security.
Regex Tester
Regex tester with match highlighting, group details, and replacement preview.
URL Extractor
Batch extract URLs with de-duplication, sorting, and protocol completion.
URL Query Parser
Parse query params into JSON with duplicate key support.
UTM Builder
Generate UTM tracking URLs with existing and custom params preserved.
HTTP Status Lookup
Fast HTTP status code reference with grouping and search.
Slug Generator
Convert titles to URL-friendly slugs with Pinyin conversion, separator and case options.
UUID Generator
Fast batch UUID v4 generation with custom case, hyphens, and separators.
NanoID Generator
Generate secure, URL-friendly unique IDs with custom settings.
HTML Text Extractor
Quickly extract plain text from HTML code with customizable formatting options.
CSS Triangle Generator
Visual CSS triangle generator with custom direction, size, color, and rotation.
HTML Previewer
Real-time HTML code editor and previewer with JS/CSS support.
Cron Expression Generator
Visual cron expression builder with descriptions and examples.
MAC Address Generator
Batch generate MAC addresses with custom prefix, format, and case.
SQL Formatter
Online SQL formatter and minifier supporting multiple dialects.
Linux Permissions Calculator
Visual Linux file permissions calculator and chmod generator.
PX to REM Converter
Essential PX/REM converter with custom root font size support.
Keyboard Key Code Info
Real-time keyboard event detector showing keyCode, key, code, and more.
CSS Gradient Generator
Visual CSS gradient generator with multi-color, Tailwind support and real-time preview.
CSS Filter Generator
Visual CSS Filter generator with multi-effect support and Tailwind code generation.
CSS Box Shadow Generator
Visual CSS box-shadow generator with multi-layer support, Tailwind and real-time preview.
CSS Glassmorphism Generator
Visual CSS Glassmorphism generator with blur, transparency controls and Tailwind support.
CSS Flexbox Generator
Visual CSS Flexbox generator, master flex layouts easily.
CSS Grid Generator
Visual CSS Grid generator, create complex 2D layouts easily.
CSS Loader Generator
Pure CSS loading animation generator with multiple styles and customization.
CSS Fancy Border Radius Generator
8-point control for organic shapes and fancy border-radius.
Meta Tag Generator
Online generator for SEO Meta tags, Open Graph, and Twitter Cards.
Robots.txt Generator
Generate standard Robots.txt files instantly, configure crawler access and Sitemap to boost SEO.
SVG to JSX Converter
Convert SVG to React/JSX components with TS & Memo support.
Encoding
Base64 Encoder/Decoder
Efficient Base64 encoder/decoder for text and images. Secure local processing.
Base32 Encoder/Decoder
RFC 4648 compliant Base32 encoder/decoder. Secure local processing.
Base16 Encoder/Decoder
Convert text to/from hex with customizable case, separators, and prefix formats.
Base58 Encoder/Decoder
Base58 text/hex/number conversion with a confusion-free alphabet.
Base62 Encoder/Decoder
Base62 text/hex/number conversion for short URLs and compact IDs.
Base85 Codec
Online Base85 encoder/decoder supporting Ascii85, Z85, and IPv6 variants.
Base91 Codec
Online Base91 encoder/decoder with high compression ratio.
URL Encoder/Decoder
Online URL encoder and decoder with support for both encodeURI and encodeURIComponent modes.
Base Converter
Convert between bases 2-62, supporting BigInt and floating point.
Text to Binary Converter
Bidirectional conversion between text and binary (01). Features real-time preview and 100% local processing for security.
Text to Octal Converter
Convert text to Octal (Base8) format. Useful for Unix permission analysis and legacy system compatibility debugging.
Text to Hex Converter
Quickly convert text to Hexadecimal (Base16) format. Perfect for debugging, encoding analysis, and low-level data inspection.
ASCII Encoder/Decoder
Multi-radix ASCII encoding with custom separators and instant results.
ASCII Code Table
Complete ASCII character table with decimal, HEX, OCT, BIN, and character search.
Unicode Encoder/Decoder
Bidirectional conversion between text and Unicode (\uXXXX, HTML entities) with auto-detection and ASCII preservation.
HTML Entity Encoder/Decoder
Bidirectional conversion between text and HTML entities (named/numeric) with smart detection and preview.
Text Compressor
Text compression/decompression with URL-safe, Base64, and UTF-16 formats, fully local.
Security Tools
RSA Key Generator
Generate RSA public and private keys online with various sizes and formats. 100% local processing.
MD5 Generator
Quickly generate 32-bit or 16-bit MD5 hash values. Supports case switching and runs entirely locally for privacy.
SHA Hash Generator
Multi-algorithm SHA hash generator with instant output and copy.
HMAC Generator
Generate HMAC with secret key, multiple algorithms (MD5, SHA256, etc.) and Hex/Base64 output.
AES Encrypt / Decrypt
Online AES encrypt/decrypt with AES-128/192/256, 5 modes, multiple paddings, fully local.
Random Password Generator
Customizable online random password generator with strength meter and batch copy.
Password Strength Checker
Real-time password strength analysis with entropy, guess time estimation, and security suggestions.
Chinese ID Validator
Validate 15/18-digit IDs with region, birthday, gender, and checksum parsing.
JWT Decoder
Decode and analyze JWT with expiry checks and HS signature verification.
JWT Generator
Quickly generate and sign JWT tokens with HS algorithms and custom payloads.
Morse Code Translator
Convert text and Morse with audio playback, Unicode support, and custom styles.
Caesar Cipher Encrypt/Decrypt
Classic shift cipher tool with encrypt/decrypt and full shift reference.
Bacon Cipher Encrypt/Decrypt
Bacon cipher encrypt/decrypt with 24/26-letter variants and mapping preview.
Vigenère Cipher Encrypt/Decrypt
Vigenère encrypt/decrypt with keystream preview and shift list.
Rail Fence Cipher Encrypt/Decrypt
Rail fence encrypt/decrypt with custom rails and pattern preview.
Image Tools
QR Code Generator
Online QR code generator with custom colors, gradients, size, styles, and error correction. Multiple export formats.
QR Code with Logo Generator
Generate personalized QR codes with gradients, dot/eye styles, and custom Logos.
QR Code Decoder
Simple and easy-to-use online QR code reader and decoder with select, paste, and URL support.
Barcode Generator
Barcode generator with 20+ format support, smart input validation, and custom styling.
Batch Barcode Generator
Generate multiple barcodes at once with batch download support for PNG/SVG or ZIP.
WiFi QR Code Generator
Generate WiFi QR code for instant connection without typing passwords.
Image EXIF Viewer
Read EXIF metadata with camera settings and GPS info.
Image EXIF Cleaner
Remove EXIF/GPS metadata in one click for safer sharing.
Image Flipper
Simple and easy-to-use image flipper for horizontal or vertical mirroring.
Image Rotator
Quickly rotate images to any angle or by 90 degrees. Secure local processing.
Image Resizer
Resize images with custom dimensions and aspect lock, export in multiple formats.
Transparent Rounded Image
Create transparent rounded images with adjustable radius and size.
Image Mosaic
Add mosaic to images online. Supports draw/erase modes and custom mosaic size.
Color Photo to Black & White
Convert color photos to B&W with intensity, brightness, and contrast control.
Image Color Inverter
Invert image colors instantly to create negative effects with live preview.
Image Blur
Blur images with adjustable strength, comparison preview, and export.
Image Watermark
Add text or image watermarks to images online. Supports tiling, rotation, and custom styles with local processing.
Text to Image
Turn text into images with font/background controls and multi-format export.
Handwritten Signature
Smooth curves & pressure sensitivity, undo/redo support, export PNG
Image Cropper
Free online image cropper with preset ratios and flip support. Secure local processing.
Image Compressor
Local image compressor supporting multiple formats with quality and scale controls.
Image Filter
Multiple filter presets and custom parameters for instant image enhancement.
Image Format Converter
Fast PNG/JPG/WEBP conversion with quality and background options.
Image to Pixel Art
Convert images to retro pixel art style with custom pixel size.
SVG to PNG Converter
Online SVG to PNG converter with support for custom resolution, aspect ratio locking, and transparent backgrounds.
SVG to JPG Converter
Convert SVG vector images to JPG online with custom dimensions, quality, and background color
SVG to ICO Converter
Online SVG to ICO converter supporting multi-size packaging, ideal for creating website icons.
Image Splitter
Split images into grids or custom sizes online. One-click ZIP download.
Image Stitcher
Stitch multiple images with layout, spacing, background, and export controls.
Image to PDF
Merge multiple images into PDF with order control and A4/auto pages.
Image to Base64
Generate Base64 or Data URL for images, ideal for inline usage.
YouTube Thumbnail Downloader
Supports Shorts & Live. Get high-quality YouTube video thumbnails from URL or ID.
Meme Generator
Upload images, add custom text, and create funny memes instantly.
GIF Generator
Create animated GIFs from images with custom settings locally.
GIF Extractor
Select GIF to extract all frames with preview and batch download support.
OG Image Generator
Generate Open Graph, Twitter/X, and blog cover images with customizable templates.
Video Tools
Local Video Player
A free local web video player with drag-and-drop, speed control, and HD screenshot features.
M3U8 Player
Play M3U8 (HLS) video streams online, cross-platform support.
Screen Recorder
Free online screen recorder for screen/window/tab and audio. No watermark.
Video to GIF
Convert video clips to animated GIFs with crop feature, custom frame rate, size and quality.
Audio Tools
Decibel Meter
Real-time dB meter with peak/average, trend history, and calibration offset.
Metronome
Precise online metronome powered by Web Audio API, with adjustable BPM, flexible time signatures, subdivision, and custom accents.
Online Audio Recorder
Online audio recorder with waveform visualization and multi-format download.
Tone Generator
Generate Sine/Square/Sawtooth/Triangle waves with adjustable frequency (1Hz-20kHz) and L/R balance.
White Noise Generator
Generates White, Pink, and Brown noise with timer support to help you focus or sleep better.
Audio Clipper
Upload audio, drag on the waveform to select a range, and export the clip instantly.
Color Tools
Color Picker
Online color picker with real-time HEX, RGB, HSL conversion.
Color Contrast Checker
Instant contrast ratio with WCAG AA/AAA results.
Screen Color Picker
Use system eyedropper to pick colors anywhere and copy HEX / RGB / HSL.
Color Converter
Real-time conversion between HEX, RGB, HSL, HSV, CMYK formats.
Image Color Picker
Pick colors from images and copy HEX / RGB / HSL / HSB / CMYK with magnifier and history.
Color Palette
Curated collection of color palettes with category filtering and one-click copy.
Math Tools
Roman Numeral Converter
Bidirectional conversion between Arabic numbers (1-3999) and Roman numerals with real-time results.
Length Unit Converter
Online instant conversion across metric and imperial length units.
Area Unit Converter
Instant area conversion across metric, imperial, and Chinese units.
Weight Unit Converter
Instant conversion across metric, imperial, troy, and Chinese weight units.
Temperature Unit Converter
Instant temperature conversion across multiple scales with formatting options.
Capacitance Unit Converter
Instant capacitance conversion with SI prefixes and CGS units.
Speed Unit Converter
Instant speed conversion across metric, imperial, and nautical units.
Frequency Unit Converter
Instant frequency conversion across Hertz series and angular frequency units.
Angle Unit Converter
Instant angle conversion across degrees, radians, gradians, and more.
Volume Unit Converter
Online instant conversion across metric, US, and UK imperial volume units.
Pressure Unit Converter
Instant conversion across 30+ pressure units including metric, imperial, water column, and atmospheric units.
Energy Unit Converter
Real-time conversion for Joules, Calories, kWh, hp·h, etc.
Power Unit Converter
Real-time conversion for 30+ power units: Metric, Imperial, Thermal, Electrical.
Storage Unit Converter
Convert storage units with decimal and binary standards.
Download Time Calculator
Estimate transfer time from file size and bandwidth.
Scientific Calculator
High-precision scientific calculator with trig/log/power/factorial and angle modes.
Factorial Calculator
Supports factorial calculation of very large integers (up to 10000) with instant results.
Exponent Calculator
Calculate the specified power of a base with exact high precision support.
Trigonometry Calculator
Computes sin, cos, tan, cot, sec, csc. Supports degrees & radians.
Inverse Trigonometry Calculator
Calculate inverse trigonometric functions with degree and radian outputs.
BMI Calculator
Quickly calculate BMI based on WHO standards to check your health status.
BMR Calculator
Calculate BMR instantly with maintenance and goal calorie estimates.
BFR Calculator
Quick body fat calculation with US Navy and BMI formulas, clean results.
WHR Calculator
Calculate WHR quickly to understand fat distribution and risk.
Child Height Calculator
Predict a child's height and range from parents heights.
Child Blood Type Calculator
Estimate possible child blood types with probability hints.
Compound Interest Calculator
Pro compound interest calculator with monthly contributions and yearly schedule.
Percentage Calculator
Multi-functional calculator for percentage value, change, proportion, and reverse calculation.
Discount Calculator
Calculate final price and savings with single/double discounts.
Statistics Calculator
Calculate mean, median, standard deviation, variance, and quartiles instantly.
Screen PPI Calculator
Calculate screen pixel density (PPI) and aspect ratio based on resolution and size.
Aspect Ratio Calculator
Calculate and convert image/video aspect ratios with common presets.
GPA Calculator
Calculate your Grade Point Average (GPA) quickly with multiple scales support.
Random Number Generator
Generate random numbers with range, count, uniqueness, sort, and precision.
RMB Uppercase Converter
Convert amounts to Chinese uppercase instantly with round/truncate options.
LaTeX to Image
Free online LaTeX to image converter. Supports SVG/PNG/JPG export, custom colors, and sizes with high-quality rendering.
Date & Time
Simple Date Time Screensaver
Simple and beautiful online clock screensaver with fullscreen support.
Flip Clock Screensaver
Flip digital clock screensaver with fullscreen, theme sync, and size adjustment.
Simple Analog Clock Screensaver
Classic analog clock screensaver with immersive fullscreen support.
Stopwatch Timer
High-precision stopwatch with lap stats and shortcuts.
Countdown Timer
Countdown timer with loop mode, various sound effects, notifications, and shortcuts.
Age Calculator
Calculate exact age, total days, and next birthday countdown with a clean UI.
Safe Period Calculator
Estimate ovulation, fertile days, and safe window with a cycle calendar.
Time Unit Converter
Instant time unit conversion from subsecond to years with formatting options.
Time Zone Converter
Convert time across common time zones with timestamp and ISO output.
Timestamp Converter
Online Unix timestamp and date time conversion. Supports s/ms and real-time clock.
Date Uppercase Converter
Convert Gregorian dates to standard or financial Chinese uppercase formats.
Time Difference Calculator
Calculate the precise difference between two dates and times with detailed breakdown.
Perpetual Calendar
Solar/Lunar calendar with solar terms and festivals in a beautiful UI.
Pomodoro Timer
Boost productivity with this Pomodoro Timer. Custom intervals and sound alerts.
Date Calculator
Calculate date by adding/subtracting duration.
English Date Format
Quickly format dates into standard US, UK, or international English formats.
Week Number Calculator
Quickly check the current week number of the year, supports any date.
Day of Year Calculator
Calculate the day of the year for a specific date, view progress and days left.
File Tools
File Hash Checker
File hash checker with MD5, SHA, and CRC32 local hashing support.
Fast Online Extractor
Local fast ZIP/GZIP extraction with preview and batch download.
ZIP Compressor
Pack files into ZIP with compression level and custom name.
PDF Merger
Merge multiple PDFs with reordering and local download.
PDF Splitter
Split PDF by pages or ranges and download as ZIP.
PDF Watermark
Add custom text watermarks to PDFs with tiling and position settings.
PDF Page Rotator
Rotate PDF pages for all pages or selected ranges.
PDF Page Remover
Remove specified pages and export a new PDF locally.
PDF Page Sorter
Reorder PDF pages by drag-and-drop or page sequence.
PDF Page Cropper
Crop PDF pages with drag selection, ranges, and margins.
PDF to Image
Export PDF pages to PNG/JPG with range and quality control.
PDF Text Extractor
Extract text from PDF with drag-and-drop, page ranges, and TXT/ZIP export.
Text to PDF
Turn text or TXT files into PDF with page, font, margin, and font family settings.
HTML to PDF
Input HTML to preview and export as PDF with custom paper and layout.
Markdown to PDF
Convert Markdown documents to beautifully formatted PDFs with math, tables, and code highlighting. All local.
Word to PDF
Convert Word (.docx) documents to PDF with tables, images, and complex formatting. 100% local processing.
Network Tools
Entertainment
Reaction Time Test
Test your visual reflexes and see how fast you can react!
3D Dice Roller
Realistic 3D dice roller with liar's dice, Monopoly doubles check, and probability stats.
Typing Speed Test
Test your typing speed (WPM) and accuracy in English or Chinese.
Electronic Wooden Fish
Tap the wooden fish to earn merit and find your inner peace.
Decision Spinner
Spin the spinner to make random decisions or pick winners.
Keyboard Test
Visual keyboard tester for detecting key response, ghosting, and rollover issues.
Screen Resolution Checker
Check screen size, viewport, DPR, and orientation in real time.
Mouse Test
Comprehensive mouse button, scroll, movement, double-click, and drag testing.
Click Speed Test (CPS)
Test your mouse click speed (CPS) with multiple time modes and ranking.
Screen Dead Pixel Test
Full-screen solid colors to check for dead or stuck pixels.
Chinese Kinship Calculator
Easily calculate correct Chinese family titles from relationship chains.
MBTI Personality Test
93 professional questions to discover your MBTI personality type with detailed analysis.
Silly Big Personality Test
32 soul-hitting questions, 27 hidden personalities, 15-dimension analysis. Discover your exclusive SBTI type and funny poster.
Enneagram Personality Test
36 questions to discover your dominant Enneagram personality type with detailed analysis.
Kaomoji Editor
Dual-mode kaomoji editor: combine parts or freely create your own custom kaomoji.
Core Advantages
Lightning Fast
No more waiting for server queues. All tools run directly in your browser for near-instant execution.
Privacy Guarded
We follow a "local-first" philosophy. Your data never leaves your device, ensuring complete confidentiality.
Clean & Simple
No registrations, no subscriptions, and absolutely zero ads. Enjoy a focused and distraction-free workspace.
Universal Access
Optimized for any screen size. Whether you're on a desktop or mobile, productivity is always at your fingertips.