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All Tools

Free online tools for developers and creators. All run in your browser, your data stays private.

24 / 80 tools

JSON Formatter
Featured
Format, minify, and validate JSON
json
format
developer
Base64 Converter
Featured
Encode and decode Base64 strings
base64
encode
decode
URL Encoder/Decoder
URL component encoding and decoding
url
encode
decode
Case Converter
Convert text between camelCase, snake_case, PascalCase, and more
case
text
camel
Word Counter
Count words, characters, and paragraphs
word
count
text
Color Converter
Convert between HEX, RGB, HSL, and more
color
hex
rgb
Timestamp Converter
Convert between Unix timestamps and readable dates
timestamp
date
time
Password Generator
Featured
Generate secure random passwords
password
generator
security
UUID Generator
Generate UUID v1, v3, v4, v5, and NIL
uuid
generator
id
SQL Formatter
Format and beautify SQL queries
sql
format
beautify
Markdown Preview
Live Markdown editor with WYSIWYG, split view, and instant rendering
markdown
preview
render
Regex Tester
Featured
Test and debug regular expressions
regex
regular
expression
HTML Encoder
Encode and decode HTML entities
html
encode
decode
Number Base Converter
Convert between binary, octal, decimal, hex
binary
octal
decimal
Text Diff
Compare and find differences between texts
diff
compare
text
Hash Text
Generate hash values from text using MD5, SHA1, SHA256, SHA224, SHA384, SHA512, SHA3, or RIPEMD160
hash
md5
sha
Roman Numeral Converter
Convert between Roman and Arabic numerals (1-3999)
roman
numeral
convert
Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin
temperature
celsius
fahrenheit
Slugify
Convert text to a URL-friendly slug
slug
url
text
Chronometer / Stopwatch
A simple stopwatch with lap timing
chronometer
time
stopwatch
ETA Calculator
Calculate estimated time of arrival given distance and speed
eta
time
estimate
Percentage Calculator
Calculate percentages: X% of Y, X is what % of Y, percentage change
percentage
calculator
math
Math Evaluator
Evaluate mathematical expressions like 2+3*4
math
evaluate
expression
Phone Number Parser
Parse and format international phone numbers
phone
parser
format

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