AI Assistants
AI Writing Assistant Members only
Write articles, formal documents, and marketing copy in one place
Formal Document Writer Members only
Draft notices, requests, reports, and meeting minutes in a professional format
Long-Form Writer Members only
Create in-depth articles and long-form content with a clear structure
File Tools
Image Compressor
Reduce image file size with smart quality control
Image Format Converter
Convert images between PNG, JPG, and WebP
Image Rotator
Rotate, flip, and mirror images
Image Watermark Tool
Add text or image watermarks to pictures
Image Adjuster
Adjust image brightness, contrast, saturation, and more
Photo Grid Splitter
Split an image into a nine-tile grid
Image Cropper
Crop and preview images locally in your browser
Image Resizer
Resize multiple images in one click
Image Stitcher
Join multiple images horizontally or vertically into one long image
Background Remover
Separate the main subject from the background
Image Enhancer
Improve image sharpness and clarity with local processing
Image Text Extractor
Quickly extract text from images
Image to Excel
Convert tables in images into editable spreadsheets
QR Code Generator
Generate a QR code from text or a URL
QR Code Reader
Scan and decode QR code content
Text Comparison
Quickly find differences between two blocks of text
Text Deduplicator
Remove duplicate text and view duplication statistics
Markdown to HTML
Convert Markdown to HTML and download the result
PDF Merger
Merge multiple PDF files and download the result
PDF Splitter
Extract selected pages into a new PDF
PDF Page Manager
Add, delete, rotate, or reorder PDF pages
PDF Metadata Editor
View and edit PDF title, author, and other metadata
PDF to Images
Convert every PDF page into a PNG image
PDF Image Extractor
Extract embedded image assets from a PDF
PDF Annotation and Watermark
Add watermarks and annotations to PDF documents
ThemeRiver Chart Generator
Visualize categorized time-series data as a ThemeRiver chart
Delete PDF Pages
Delete multiple PDF pages by page number or range
PDF Compressor
Optimize PDF structure and compare file sizes
Handwritten Signature
Draw a digital signature and export it as a transparent PNG
PDF Signature Tool
Place a signature image on a selected PDF page
Images to PDF
Combine multiple images into a single PDF
JSON to Excel
Convert JSON data into an XLSX spreadsheet
Excel to CSV
Read a worksheet and export it as CSV
CSV to Excel
Convert a CSV file into an XLSX spreadsheet
Excel Merger
Merge multiple workbooks into one file
Chart Studio
Funnel Chart Generator
Edit stage data online to visualize conversion and drop-off
Waterfall Chart Generator
Show how positive and negative changes build to a cumulative result
Radar Chart Generator
Create a clear radar chart from multidimensional metrics
Candlestick Chart Generator
Build a professional candlestick chart from open, close, low, and high values
Nightingale Rose Chart Generator
Use sector radius to emphasize differences between category values
Diverging Bar Chart Generator
Create a two-way bar chart for positive and negative comparisons
Productivity Tools
Character Counter
Track text length, words, lines, and structure in real time
Simplified and Traditional Chinese Converter
Convert text between Simplified and Traditional Chinese
Chinese Financial Numeral Converter
Convert Arabic currency amounts into uppercase Chinese financial numerals
Pomodoro Timer
Stay focused with a 25-minute Pomodoro timer
Date Calculator
Calculate date intervals and add or subtract days
Notepad
Take notes with automatic local browser storage
Local File Vault
Store personal files locally in your browser
Developer Tools
JSON Formatter
Validate, format, minify, and escape JSON
Timestamp Converter
Convert between Unix timestamps and date-time values
Base64 Encoder and Decoder
Encode and decode text or images with Base64
URL Encoder and Decoder
Encode and decode URLs and query parameters
UUID Generator
Generate UUIDs and random passwords in batches
Hash Calculator
Calculate MD5, SHA-1, SHA-256, and SHA-512 hashes
Regular Expression Tester
Test regular expression matches in real time
JWT Decoder
Decode JWT headers and payloads locally
Color Picker
Convert colors between HEX, RGB, and HSL
Unit Converter
Convert length, weight, area, temperature, and storage units
Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal
Password Generator
Generate strong random passwords
Barcode Generator
Generate CODE128 and EAN-13 barcodes
Image to Base64
Convert an image into a Base64 data URL
Random Name Picker
Randomly select names from a list
IP Tools
Check your public IP and convert IPv4 formats
HTML Formatter
Format, indent, and minify HTML or XML markup
CSS Formatter
Format and minify CSS rule blocks
JavaScript Formatter
Format and minify JavaScript code
SQL Formatter
Format SQL keywords, clauses, and conditions
XML Formatter
Format XML with clear hierarchical indentation
XML to JSON
Convert XML attributes and text nodes into JSON
JSON to XML
Convert JSON structures and attributes back into XML
Comment Remover
Remove comments and blank lines from JS, HTML, SQL, and Python
SVG Optimizer
Remove comments, whitespace, and redundant SVG attributes
JavaScript Packer
Pack JavaScript into a runnable Base64 self-unpacking script
AA-Style JavaScript Obfuscator
Obfuscate JavaScript with AA-style emoticons and restore it losslessly
JJ-Style JavaScript Obfuscator
Obfuscate JavaScript with JJ-style dollar-sign syntax and restore it losslessly
JavaScript Obfuscator
Increase reading difficulty with string escaping and noise comments
Encoding Converter
Convert Unicode escapes and HTML entities in both directions
CRC Calculator
Calculate CRC8, CRC16 MODBUS, and CRC32 checksums
WebSocket Tester
Connect, send, receive, and inspect real-time WebSocket logs
Serial Port Debugger Members only
Connect to Web Serial devices and configure baud rate and data transfer
Regex Code Generator
Generate regular expression usage code for five languages
Regex Visualizer
Break a regular expression into a readable railroad diagram
Regular Expression Library
Browse and copy 16 commonly used regular expressions
CSS Dashed Border Generator
Preview border style, width, and radius and copy the CSS
Clipboard Viewer
Read text currently stored in the system clipboard
Keyboard Code Inspector
Display key, code, keyCode, and modifier values in real time
ASCII Converter
Convert between characters and ASCII codes with a quick reference table
Base Converter 2-36
Convert large integers between any bases from 2 to 36
Variable Naming Converter
Convert names among camel, snake, kebab, Pascal, and constant cases
Directory Tree Generator
Generate and download a tree view from a selected folder
Tech Pronunciation Guide
Check the correct pronunciation and origin of 16 commonly mispronounced tech terms
Bulk Link Generator
Generate URL batches with arithmetic, geometric, alphabetic, or list patterns
Webmaster Tools
IP Lookup
Look up IP geolocation and network provider information
WHOIS Lookup
Retrieve real-time domain registration information
Ping Test
Test server reachability and network latency
DNS Lookup
Query A, AAAA, MX, NS, and TXT records
SEO Site Audit Members only
Analyze metadata, structured data, and keyword density
Domain Status Lookup
Check domain status and registration information
Website History Members only
Review historical website snapshots and change records
HTTP Header Checker
Inspect response headers and security header configuration
SSL Certificate Checker
Check certificate validity, expiration, and issuer chain
Keyword Research
Collect search suggestions from multiple engines to expand keyword ideas
Generative Engine Optimization Audit Members only
Assess AI search visibility and receive optimization recommendations
Text Tools
Link Extractor
Extract HTTP and WWW links from text
Email Address Extractor
Extract and deduplicate all e-mail addresses
IP Address Extractor
Extract valid IPv4 addresses from text
Domain Extractor
Extract domains with common suffixes from text
Chinese Mobile Number Extractor
Extract 11-digit mainland Chinese mobile numbers
Chinese ID Number Extractor
Extract 18-character mainland Chinese ID numbers
Color Value Extractor
Extract hexadecimal color codes from text
Emoji Extractor
Extract emoji and pictographic symbols from text
Chinese Character Extractor
Keep Chinese characters and remove other content
Number Extractor
Extract integers, decimals, and negative numbers
Quoted Text Extractor
Extract text enclosed by matching quotation marks
Text Between Markers
Extract one or more text segments between two markers
Line Trimmer
Remove leading and trailing whitespace from every line
Duplicate Line Remover
Keep the first occurrence and remove duplicate lines
Space Remover
Remove half-width spaces, full-width spaces, and tabs
Line Break Remover
Combine multiple lines into a single line
Punctuation Remover
Remove Chinese and English punctuation while preserving text
Digit Remover
Remove all numeric characters from text
Letter Remover
Remove all English letters from text
HTML Tag Remover
Strip HTML tags, scripts, and style blocks
Markdown Cleaner
Strip headings, emphasis, links, and other Markdown syntax
Whitespace Compressor
Collapse consecutive whitespace into a single space
Keyword Line Filter
Keep or remove lines containing a keyword
Regex Line Filter
Keep lines that match a regular expression
Line Length Filter
Keep lines whose length falls within a specified range
Empty Line Remover
Delete blank lines and lines containing only spaces
Line Range Extractor
Extract text by a specified range of line numbers
First and Last Lines
Take the first or last N lines like head and tail commands
Line Set Operations
Calculate the union, intersection, and difference of two line sets
Line Sorter
Sort lines alphabetically, by length, or by leading number
Line Order Reverser
Reverse the order of lines
Line Shuffler
Randomize line order with cryptographically secure shuffling
Delimiter Splitter
Split text into multiple lines using a delimiter
Line Joiner
Join multiple lines with a chosen delimiter
Sentence Splitter
Split text into lines at periods, exclamation marks, and question marks
Chinese to Pinyin
Convert common Chinese characters to Pinyin
Chinese to Pinyin Initials
Convert each Chinese character to its Pinyin initial
English Case Converter
Convert text to uppercase, lowercase, title case, or sentence case
Full-Width and Half-Width Converter
Convert punctuation, letters, digits, and spaces between full-width and half-width forms
Number to Chinese Numerals
Convert Arabic numbers to standard and uppercase Chinese numerals
Chinese Numerals to Number
Convert written Chinese numerals such as 三百二十一 to 321
Find and Replace
Replace plain text or regular expression matches
Bulk Prefix and Suffix
Add a common prefix or suffix to every line
Add Line Numbers
Add sequential numbers before each line
Remove Line Numbers
Remove numeric labels from the start of each line
Bulk Quote Wrapper
Wrap each line in quotes for use in SQL lists
Text Wrapper
Wrap an entire block or each line with chosen symbols
Indentation Adjuster
Increase or decrease indentation across multiple lines
Traditional to Simplified Chinese
Convert common Traditional Chinese characters to Simplified Chinese
Text Statistics
Count characters, words, lines, paragraphs, punctuation, and reading time
Word Frequency Counter
Count English words and show the top 20 frequencies
Line-by-Line Text Diff
List added and removed lines between two text blocks
Palindrome Checker
Check whether each line is a palindrome
Morse Code Converter
Convert letters and digits to and from Morse code
Text and Binary Converter
Convert UTF-8 text to and from binary strings
Unicode Inspector
Inspect code points, UTF-8 bytes, escapes, and entities
Random Text Generator
Generate Chinese, English, mixed, or numeric placeholder text
Lorem Ipsum Generator
Generate classic Latin placeholder text by paragraph
Title Case Converter
Apply English title capitalization while preserving minor words
URL Slug Generator
Create lowercase hyphenated text for SEO-friendly URLs
Identifier Case Converter
Convert names among spaces, underscores, hyphens, and camel case
Smart Tools
AI Presentation Maker Members only
Generate an outline from a topic and export it as PPTX
Smart Writing
Generate high-quality proposals, research reports, summaries, and long-form content
AI Image Generator Members only
Create high-quality images from text descriptions
AI Contract Assistant Members only
Draft contracts and review legal risks with AI assistance
Mind Map Generator
Create a mind map from one sentence or convert a document into a map
AI Career Assistant
Optimize resumes and practice interviews in one career workflow
AI Podcast
Turn scripts into spoken audio with adjustable speed and pitch
AI-Generated Text Detector Members only
Use local heuristics to identify signs of AI-generated academic text
Color Inspiration Gallery
Generate color palettes and gradient backgrounds from keywords
Travel Planner
Create a personalized itinerary, budget, and practical travel tips
Document Converter
Parse Word files and export, merge, or split multiple formats
Video Tools
Video Trimmer Members only
Extract the segment between selected start and end times
Video Speed Changer
Re-encode video at speeds from 0.25x to 4x
Video Muter Members only
Remove the audio track and export a silent video
Video Volume Adjuster
Adjust audio gain from 0% to 300%
Video Flipper
Flip video horizontally or vertically
Video Rotator
Rotate video by 90, 180, or 270 degrees
Video Resizer
Scale video output while preserving aspect ratio
Video Watermark Tool
Overlay a text or image watermark on video
Video Merger
Join multiple videos in sequence
Video Frame Capture
Capture a PNG frame at a selected timestamp
Video to GIF
Sample video frames and encode them as an animated GIF
Video Audio Extractor
Decode a video audio track and export it as WAV
Video Format Converter
Convert between WebM and MP4 containers
Online Screen Recorder
Record a screen, window, browser tab, or camera