Tool directory
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Free online tools for developers and creators. All run in your browser, your data stays private.
96 / 96 tools
Converter
23Color Converter
Featured
Convert between HEX, RGB, HSL, and more
color
hex
rgb
Image Converter
Featured
Convert images between JPEG, PNG, WebP, and AVIF formats
image
convert
jpeg
Konverter Media
Featured
Ubah format file video dan audio — potong, ubah ukuran, sesuaikan kualitas
video
audio
convert
Timestamp Converter
Featured
Convert between Unix timestamps and readable dates
timestamp
date
time
Chronometer / Stopwatch
A simple stopwatch with lap timing
chronometer
time
stopwatch
CSV Parser
Parse CSV data and convert to JSON or Markdown
csv
parse
convert
ETA Calculator
Calculate estimated time of arrival given distance and speed
eta
time
estimate
HTML to Markdown
Convert HTML to Markdown format
html
markdown
convert
JSON to CSV
Convert JSON data to CSV format
json
csv
convert
JSON to XML
Convert JSON data to XML format
json
xml
convert
JSON to YAML
Convert JSON data to YAML format
json
yaml
convert
Markdown to HTML
Convert Markdown to HTML format
markdown
html
convert
Math Evaluator
Evaluate mathematical expressions like 2+3*4
math
evaluate
expression
Number Base Converter
Convert between binary, octal, decimal, hex
binary
octal
decimal
Percentage Calculator
Calculate percentages: X% of Y, X is what % of Y, percentage change
percentage
calculator
math
Phone Number Parser
Parse and format international phone numbers
phone
parser
format
Roman Numeral Converter
Convert between Roman and Arabic numerals (1-3999)
roman
numeral
convert
Slugify
Convert text to a URL-friendly slug
slug
url
text
Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin
temperature
celsius
fahrenheit
Timezone Converter
Convert time between different timezones
timezone
convert
time
TOML to JSON
Convert TOML data to JSON format
toml
json
convert
XML to JSON
Convert XML to JSON format
xml
json
convert
YAML to JSON
Convert YAML to JSON format
yaml
json
convert
Developer
18Base64 Converter
Featured
Encode and decode Base64 strings
base64
encode
decode
Crontab Generator
Featured
Generate cron expressions with a visual editor and get human-readable descriptions
cron
crontab
schedule
JS Compiler
Featured
Write and run JavaScript code in your browser
javascript
compiler
playground
JSON Formatter
Featured
Format, minify, and validate JSON
json
format
developer
Pi Digit Finder
Featured
Search for any number sequence in the digits of π. Find your phone number, birthday, or any pattern in pi's infinite digits.
pi
math
search
Regex Tester
Featured
Test and debug regular expressions
regex
regular
expression
Tokenizer
Featured
Encode text to token IDs and compare tokenization across different AI models
tokenizer
token
llm
URL Encoder/Decoder
Featured
URL component encoding and decoding
url
encode
decode
Base64 File
Encode files to Base64 or decode Base64 back to files
base64
file
encode
Chmod Calculator
Calculate Unix file permissions — toggle r/w/x bits or enter a chmod number
chmod
permissions
unix
Docker Run to Compose Converter
Convert docker run CLI commands to Docker Compose YAML format
docker
run
compose
Git Memo
Quick reference cheatsheet for common Git commands
git
cheatsheet
reference
HTML Encoder
Encode and decode HTML entities
html
encode
decode
HTML WYSIWYG Editor
A simple what-you-see-is-what-you-get rich text editor with HTML source view
html
wysiwyg
editor
IBAN Validator
Validate and parse International Bank Account Numbers (IBAN)
iban
validator
bank
JS Benchmark Builder
Run JavaScript code performance benchmarks in your browser
benchmark
performance
test
Keycode Info
Press any key to see its key code, code, and modifier key information
keycode
keyboard
event
Meta Tag Generator
Generate HTML meta tags for SEO and social sharing
meta
tags
seo
Formatter
6JSON Diff
Featured
Compare two JSON objects and highlight the differences
json
diff
compare
JSON Viewer
Featured
View and explore JSON data in a collapsible tree
json
viewer
tree
CSS Formatter
Format, minify, and beautify CSS
css
format
minify
SQL Formatter
Format and beautify SQL queries
sql
format
beautify
XML Formatter
Format and beautify XML data
xml
format
beautify
YAML Viewer
Parse and view YAML as formatted JSON
yaml
viewer
formatter
Generator
13Free Invoice Generator
Featured
Create professional invoices instantly with live preview. Fill in your details, add line items, and download as PDF — no sign-up, no watermarks, completely free.
invoice
pdf
billing
QR Code Generator
Featured
Generate QR codes from text or URLs with customizable size and error correction
qr
code
generator
ASCII Text Art Generator
Convert text into ASCII art banners using figlet fonts
ascii
art
text
BIP39 Mnemonic Generator
Generate cryptographically secure BIP39 mnemonic phrases for cryptocurrency wallets
bip39
mnemonic
wallet
Camera Capture
Access your camera to take photos and capture images directly in the browser
camera
recorder
photo
Emoji Picker
Browse and copy emojis by category with search
emoji
picker
copy
Random Port Generator
Generate random TCP/UDP port numbers with configurable ranges
port
random
network
SVG Placeholder
Generate custom SVG placeholder images for your projects
svg
placeholder
image
Tanda tangan tulisan tangan
Gambar tanda tangan dan ekspor sebagai PNG dengan warna tinta, latar, atau transparansi pilihan
signature
drawing
png
Token Generator
Generate secure random tokens with customizable character sets
token
generator
random
ULID Generator
Generate Universally Unique Lexicographically Sortable Identifiers
ulid
generator
id
UUID Generator
Generate UUID v1, v3, v4, v5, and NIL
uuid
generator
id
WiFi QR Code
Generate a QR code that shares WiFi credentials — scan to connect instantly
wifi
qr
code
Network
11WHOIS Lookup (RDAP)
Featured
Cari informasi pendaftaran domain via RDAP — registrar, tanggal, nameserver, kode status, dan lainnya
whois
rdap
domain
Device Info
View detailed information about your browser, screen, and system
device
information
browser
Google Trends
Lihat apa yang dicari dunia — tren pencarian hari ini di Google
google
trends
search
HTTP Status Codes
Browse and search HTTP status codes with descriptions and categories
http
status
codes
IPv4 Converter
Convert IPv4 addresses to hex, binary, decimal, integer, octal, and identify class
ipv4
converter
address
IPv4 Subnet Calculator
Calculate IPv4 subnet details including network address, broadcast, usable hosts
ipv4
subnet
cidr
IPv6 ULA Generator
Generate random IPv6 Unique Local Addresses (fd00::/8)
ipv6
ula
generator
MAC Address Generator
Generate random MAC addresses with customizable format and OUI prefix
mac
address
generator
MAC Address Lookup
Look up the vendor of a MAC address from the built-in OUI database
mac
lookup
vendor
MIME Types
Browse and search common MIME types by extension, MIME type, or category
mime
types
content-type
User Agent Parser
Parse and analyze User Agent strings to identify browser, OS, device and more
user-agent
parser
browser
Security
13Browser Fingerprint
Featured
Discover what your browser reveals about you — device, GPU, fonts, battery, network, and more
browser
fingerprint
privacy
Hash Text
Featured
Generate hash values from text using MD5, SHA1, SHA256, SHA224, SHA384, SHA512, SHA3, or RIPEMD160
hash
md5
sha
Image Scrambler
Featured
Scramble and descramble images using space-filling curves
image
scrambler
obfuscation
JWT Parser
Featured
Decode and inspect JWT tokens (header, payload, signature)
jwt
token
decode
Password Generator
Featured
Generate secure random passwords
password
generator
security
Basic Auth Generator
Generate Basic Authentication headers from username and password
basic
auth
authentication
Bcrypt
Hash passwords or compare against existing bcrypt hashes
bcrypt
hash
password
Encryption / Decryption
Encrypt and decrypt text using AES-CBC with PBKDF2
encrypt
decrypt
aes
OTP Generator
Generate time-based one-time passwords (TOTP) compatible with authenticator apps
otp
totp
hotp
Password Strength Analyzer
Analyze password strength with scoring and crack time estimation
password
strength
analyzer
PDF File Inspector
Upload a PDF file to inspect its metadata, version, and structure
pdf
signature
verify
RSA Key Pair Generator
Generate RSA key pairs in your browser using the Web Crypto API
rsa
key
pair
Safelink Decoder
Extract real URLs from safelink/redirect formats like Google and Outlook
safelink
decoder
url
Text
12Case Converter
Featured
Convert text between camelCase, snake_case, PascalCase, and more
case
text
camel
Markdown Preview
Featured
Live Markdown editor with WYSIWYG, split view, and instant rendering
markdown
preview
render
Word Counter
Featured
Count words, characters, and paragraphs
word
count
text
Email Normalizer
Normalize email addresses by lowercasing and trimming dots (Gmail, etc.)
email
normalize
clean
List Converter
Convert a list between comma-separated, JSON array, bullet, numbered, and pipe-separated formats
list
convert
format
Lorem Ipsum Generator
Generate placeholder text for your designs
lorem
ipsum
generator
Numeronym
Convert words to numeronyms (e.g. internationalization → i18n)
numeronym
abbreviation
text
String Obfuscator
Obfuscate text with leet speak replacements and string reversal
string
obfuscator
hide
Text ↔ Binary
Convert text to binary and binary back to text
text
binary
convert
Text Diff
Compare and find differences between texts
diff
compare
text
Text Statistics
Analyze text with detailed character, word, and readability statistics
text
statistics
analyze
Text to NATO Alphabet
Convert text to NATO phonetic alphabet (Alpha, Bravo, Charlie...)
nato
phonetic
alphabet
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