🛠 bii ToolsBox v1.0
50 powerful free online tools — no signup, no data collection, 100% browser-based
Text Case Converter
Convert text to UPPER, lower, Title, camelCase, snake_case and more
Input Text
Type or paste your text
Result will appear here...
Word Counter
Real-time word, character, sentence & reading time stats
Your Text
Type to see live stats
TOP KEYWORDS
Start typing...
Lorem Ipsum Generator
Generate placeholder text for mockups and designs
Click Generate to create placeholder text...
Text Diff Checker
Highlight differences between two texts word by word
Compare Texts
Paste two texts to compare
Markdown Preview
Write Markdown and see a live rendered HTML preview
Markdown Input
Write markdown
Preview
Live rendered output
Quick NotePad
Rich text notepad — auto-saves to your browser localStorage
NotePad
Auto-saves automatically
Start typing your notes here...
Not saved yet
Find & Replace
Search and replace text with optional regex support
Result appears here...
Character Frequency Analyzer
Analyze how often each character appears in your text
Input
Enter text to analyze
Frequency Chart
Character distribution
Duplicate Line Remover
Remove duplicate lines from text, lists or data
Result appears here...
Text Line Sorter
Sort, reverse, shuffle, or number lines of text
Result appears here...
Hash Generator
Generate SHA-1, SHA-256, SHA-384, SHA-512 cryptographic hashes
Hash Generator
Secure one-way cryptographic functions
Base64 Encode / Decode
Encode or decode Base64 strings instantly
Input
Plain text or Base64
Output
Encoded / decoded result
URL Encoder / Decoder
Encode special characters in URLs or decode percent-encoded URLs
Input
URL or encoded string
Output
Encoded / decoded URL
Result...
Encode/decode a URL with query params to see them parsed here.
Password Generator
Generate cryptographically secure random passwords
Settings
Customize your password
Result
Your secure password(s)
UUID Generator
Generate RFC 4122 compliant UUIDs — v1, v4, and v5 variants
UUID Generator
Universally Unique Identifiers
JWT Decoder
Decode and inspect JSON Web Tokens (header, payload, signature)
JWT Decoder
Paste any JWT token to inspect it
Unit Converter
Convert length, weight, temperature, area, speed, data, energy, pressure, volume
Unit Converter
Select category and enter value
Number Base Converter
Convert between Binary, Octal, Decimal, Hexadecimal, and Base-32/64
Number Base Converter
All conversions simultaneously
JSON Formatter & Validator
Format, validate, minify and explore JSON data with tree view
Formatted Output
Pretty-printed JSON
CSV → JSON Converter
Convert CSV or Excel-like data to structured JSON
JSON Output
Converted result
Color Picker & Converter
Pick colors and convert between HEX, RGB, HSL, CMYK, HSV
Color Input
Pick or enter a color
Swatches & Palette
Tints, shades, and more
QUICK SWATCHES
TINTS (lighter)
SHADES (darker)
Roman Numeral Converter
Convert between Arabic numbers and Roman numerals (1–3999)
Arabic → Roman
Enter a number 1–3999
Roman → Arabic
Enter a Roman numeral
—
QUICK REFERENCE
I = 1
V = 5
X = 10
L = 50
C = 100
D = 500
M = 1000
max 3999
Currency Converter
Convert between major world currencies using static reference rates
Currency Converter
Static reference rates — for indicative use only
—
Enter an amount to convert
QUICK CONVERSION TABLE (1 base → all)
Static reference rates. For live rates please use a financial API.
Time Zone Converter
Convert date and time between world time zones
Time Zone Converter
Convert time across the world
Image Resizer & Compressor
Resize, compress and convert images — all in the browser, zero uploads
Upload Image
Click or drag & drop
CSS Gradient Generator
Build beautiful CSS gradients visually with live code output
Customize
Build your gradient
Preview & Code
Live preview
background: linear-gradient(...);
Tailwind class...
QR Code Generator
Generate custom QR codes from any URL, text, email, or phone number
Settings
Configure your QR code
Image → Base64 Converter
Convert images to Base64 strings for embedding in CSS, HTML, or JSON
Upload Image
Convert to Base64
Base64 Output
Ready to use in code
Color Palette Generator
Generate harmonious color palettes — complementary, triadic, analogous, etc.
Palette Generator
Color theory-based palettes
Favicon Generator
Generate a favicon from text, emoji, or custom design
Design
Create your favicon
Scientific Calculator
Full-featured calculator with history and keyboard support
Calculator
Standard & scientific
History
Recent calculations
Click result to use it
Percentage Calculator
Multiple percentage calculation modes — discount, increase, decrease, tips
Percentage Calculator
All percentage operations
Age Calculator
Calculate your exact age in years, months, days, hours, minutes and seconds
Age Calculator
Precise age breakdown
Date Difference Calculator
Find the exact difference between two dates in days, weeks, months, and years
Date Difference
Between two dates
Loan / EMI Calculator
Calculate monthly EMI, total interest, and full amortization schedule
Loan Details
Enter your loan information
Fill in details and click Calculate
BMI Calculator
Calculate Body Mass Index with health category and visual indicator
Your Measurements
Enter your details
Enter your details and calculate
Tip Calculator
Calculate tip amount and split the bill among multiple people
Bill Details
Enter bill info
Results
Breakdown per person
Regex Tester
Test regular expressions with live match highlighting and group extraction
Regex Tester
Pattern matching in real-time
0 matches
Enter pattern and test text...
—
URL Slug Generator
Convert any text to SEO-friendly URL slugs and identifiers
Input
Enter text to slugify
Slug appears here...
HTML Encoder / Decoder
Encode HTML special characters to entities or decode them back
Output
Encoded / decoded result
Result...
COMMON HTML ENTITIES
& = &
< = <
> = >
" = "
' = '
© = ©
® = ®
™ = ™
€ = €
JSON → CSV Converter
Convert JSON arrays to CSV format — downloadable as a file
JSON Input
Array of objects
CSV Output
Converted result
CSV...
CSS Beautifier / Minifier
Format messy CSS code or minify it for production use
SQL Formatter
Format and beautify SQL queries for readability
Formatted SQL
Readable query
Timer & Stopwatch
Countdown timer with alarm and stopwatch with lap tracking
Countdown Timer
Set and start a timer
00:00:00
Stopwatch
Measure elapsed time with laps
00:00:00.000
Invoice Generator
Create professional invoices with tax, discount support — printable & downloadable
Invoice Details
Fill in all fields
Total: $0.00
Invoice Preview
Live preview
Fill in details and click Preview
Morse Code Converter
Convert text to Morse code and decode Morse code back to text
Password Strength Checker
Analyze your password security and get improvement suggestions
Check Password
Analyze strength
Analysis
Detailed breakdown
Enter a password to analyze
Random Picker & Dice Roller
Pick random items from a list, roll dice, or generate random numbers
Random List Picker
One item per line
Dice Roller & Random Number
Roll dice or generate numbers
RANDOM NUMBER GENERATOR
JSON Schema Validator
Validate JSON against a schema, view structure, and detect errors