Universal Toolbox
Free online tools that run locally in your browser — no uploads, your privacy protected
Recently Used
Password Generator
Strong random password generator
Color Converter
Convert HEX/RGB/HSL/HSV
Regex Tester
Test regular expressions online
UUID Generator
Batch generate UUIDs
Hash Calculator
MD5/SHA hash calculator
URL Encoder/Decoder
URL encode and decode
Timestamp Converter
Convert Unix timestamps and dates
Base64 Encoder/Decoder
Base64 encode and decode
QR Code Generator
Custom QR codes with logo support
JSON Formatter
Format and validate JSON
PDF to Image
Export each PDF page as PNG
PDF Merge & Split
Merge PDFs or split by page range
Image Tools
ID Photo Maker
Auto background removal, 12 standard sizes
Image Compressor
Compress images locally, no server upload
Image Format Converter
Convert between JPG, PNG, and WebP
Image Cropper
Free crop with fixed aspect ratios
Image Watermark
Add text or image watermarks
Image Rotate & Flip
Rotate and flip images
Remove EXIF
Strip photo metadata
GIF Splitter
Split GIF into frame images
Image Stitcher
Stitch images horizontally or vertically
Solid Color Image
Generate solid color images
Image Border & Radius
Rounded corners and borders
Image Blur & Sharpen
Apply blur or sharpen effects to images
Image Adjust
Adjust brightness, contrast, and saturation
Long Image Slicer
Split long screenshots into segments
Grid Image Splitter
Split image into grid cells
GIF Merger
Combine frames into animated GIF
Image Color Picker
Pick colors from uploaded image
Image Info Viewer
View image dimensions and file size
SVG to PNG
Convert SVG vector to PNG bitmap
Document Tools
PDF Merge & Split
Merge PDFs or split by page range
PDF to Image
Export each PDF page as PNG
Image to PDF
Combine images into one PDF
Text to PDF
Convert text to PDF
PDF Rotate
Rotate PDF pages
PDF Watermark
Add text watermark to PDF
PDF Page Extractor
Extract selected pages into a new PDF
PDF Compressor
Reduce PDF file size
PDF Encrypt
Password-protect PDF files
Developer Tools
JSON Formatter
Format and validate JSON
Base64 Encoder/Decoder
Base64 encode and decode
Timestamp Converter
Convert Unix timestamps and dates
URL Encoder/Decoder
URL encode and decode
Hash Calculator
MD5/SHA hash calculator
UUID Generator
Batch generate UUIDs
Regex Tester
Test regular expressions online
Color Converter
Convert HEX/RGB/HSL/HSV
HTML Escape
HTML entity encode/decode
Unicode Converter
Text ↔ Unicode conversion
JWT Decoder
Decode JWT tokens online
Text Diff
Compare two texts line by line
Base Converter
Convert between bases 2-100
Markdown Preview
Live Markdown rendering
SQL Formatter
Beautify and indent SQL
CSV to JSON
Convert CSV to JSON array
XML Formatter
Beautify and validate XML
JSON to CSV
Convert JSON array to CSV
YAML Formatter
Format, validate YAML and convert to/from JSON
Cron Expression Parser
Parse cron syntax and next run times
IP Address Converter
IPv4 dotted / integer / binary / hex conversion
TOML Formatter
Format, validate TOML and convert to/from JSON
JSON Path Query
Extract JSON fields with JSONPath
AES Encrypt & Decrypt
AES-256 text encryption and decryption
Image to Base64
Encode images as Base64 strings
QR Code Decoder
Read QR code from image
HTTP Status Codes
Look up HTTP status code meanings
User-Agent Parser
Parse User-Agent strings
CSS Gradient Generator
Visual linear-gradient CSS builder
CSS Shadow Generator
Visual box-shadow CSS builder
Flexbox Generator
Visual Flexbox CSS builder
Code Screenshot
Generate styled code images
Utility Tools
QR Code Generator
Custom QR codes with logo support
Password Generator
Strong random password generator
Unit Converter
100+ units across 12 categories
Word Counter
Real-time character & word count
Text Deduplicator
Remove duplicate lines, sort, trim
Case Converter
Convert naming conventions
ID Card Validator
Validate 18-digit Chinese ID numbers
RMB Uppercase
Convert amount to Chinese uppercase
Morse Code
Text ↔ Morse code converter
Expiry Calculator
Calculate product expiry date
Random Number Generator
Generate random numbers in a custom range
Lorem Ipsum Generator
Generate placeholder paragraphs in Latin or Chinese
Text Sort & Reverse
Sort, reverse lines/chars, or shuffle
Date Calculator
Date difference or add/subtract days
Lottery & Group Draw
Random winner draw or random grouping
Barcode Generator
Generate CODE128, EAN barcodes
Chinese Converter
Simplified ↔ Traditional Chinese
Text Info Extractor
Extract URLs, emails, phones, numbers from text
Text to Speech
Browser text-to-speech reader
BMI Calculator
Calculate Body Mass Index
Pomodoro Timer
25-minute focus timer
Random Name Generator
Generate random Chinese names
ID Card Generator
Generate test ID card numbers
Income Tax Calculator
Estimate monthly income tax
Social Insurance Calculator
Estimate social insurance deductions
Mortgage Calculator
Equal payment mortgage calculator
Zodiac Finder
Find zodiac and Chinese zodiac by birthday
License Plate Lookup
Look up plate province in China