Apps by
One Compiler

A curated collection of essential apps for developers, designers, and data wranglers. Free and privacy-focused.

⌘ K

158 apps

Web Tools

URL Encoder
URL Decoder
HTML Entities Encoder/Decoder
URL Parser
Basic Auth Generator
User Agent Parser
QR Code Generator

String Tools

Uppercase to Lowercase Converter
Lowercase to Uppercase Converter
Title Case Converter
Camel Case Converter
Swap Case
Random Case Text
Line Counter
Word Counter
Character Counter
Space Counter
Comma Counter
Period Counter
Uppercase Letter Counter
Lowercase Letter Counter
String to Hex Converter
Hex to String Converter
Multiline to Single Line Converter
Replace Space with Newline
Remove Empty Lines
Remove Duplicate Lines
Sort Lines Lexicographically
Add Line Numbers
Remove Line Numbers
Remove Beginning or Trailing Characters
Replace First N Characters
Reverse String
Text Repeater
Truncate Text
Replace Double Quotes with Single Quotes
Replace Single Quotes with Double Quotes
Swap Single and Double Quotes
Create Palindrome
Flip Text Vertically
Slash Text Escaper
Slash Text Un-escaper
Extract Only Numbers
Remove Punctuations
Left Pad Text
Right Pad Text
Trim Text
Center Align Text
Right Align Text
Add Prefix to Text
Add Suffix to Text
Filter Text
Strip HTML Tags
Strip XML Tags
Extract Text from HTML
Text Fragment Extractor
String Length Finder

Converters

Temperature Converter
Length/Distance Converter
Weight/Mass Converter
Time Converter
Speed Converter
Area Converter
Volume Converter
Data Storage Converter
Pressure Converter
Energy Converter
ASCII to Binary Converter

Number Converters

Decimal to Binary
Decimal to Octal
Decimal to Hexadecimal
Decimal to Roman Numeral
Decimal to Scientific Notation
Binary to Decimal
Binary to Octal
Binary to Hexadecimal
Binary to Roman Numeral
Binary to Scientific Notation
Octal to Decimal
Octal to Binary
Octal to Hexadecimal
Octal to Roman Numeral
Octal to Scientific Notation
Hexadecimal to Decimal
Hexadecimal to Octal
Hexadecimal to Binary
Hexadecimal to Roman Numeral
Hexadecimal to Scientific Notation
Roman Numeral to Binary
Roman Numeral to Decimal
Roman Numeral to Octal
Roman Numeral to Hexadecimal
Roman Numeral to Scientific Notation
Scientific Notation to Decimal
Scientific Notation to Octal
Scientific Notation to Binary
Scientific Notation to Roman Numeral
Scientific Notation to Hexadecimal

Crypto & Security

MD5 Hash Generator
SHA1 Hash Generator
SHA224 Hash Generator
SHA256 Hash Generator
SHA384 Hash Generator
SHA512 Hash Generator
SHA3 Hash Generator
RIPEMD-160 Hash Generator
HMAC-MD5 Hash Generator
HMAC-SHA1 Hash Generator
HMAC-SHA224 Hash Generator
HMAC-SHA256 Hash Generator
HMAC-SHA384 Hash Generator
HMAC-SHA512 Hash Generator
HMAC-SHA3 Hash Generator
HMAC-RIPEMD160 Hash Generator
PBKDF2 Hash Generator
AES Encryption
AES Decryption
DES Encryption
DES Decryption
TripleDES Encryption
TripleDES Decryption
Rabbit Encryption
Rabbit Decryption
RC4 Encryption
RC4 Decryption
RC4Drop Encryption
RC4Drop Decryption
Base64 Encoder
Base64 Decoder

Color Tools

Color Picker
Color Converter
Shade & Tint Generator
Color Mixer

Formatters

JSON Formatter & Validator
XML Formatter & Validator
YAML Formatter & Validator
JavaScript Formatter
HTML Formatter
CSS Formatter
JSON String Escape
JSON String Unescape
SQL Formatter

Developer Tools

UUID Generator
CRON Expression Parser
Password Generator
Regex Tester
Diff Checker
Markdown Editor

Random Generators

Random IP Address Generator
Random MAC Address Generator
Random JSON Generator
Lorem Ipsum Generator

Data Tools

CSV Converter
JSON to XML Converter

Date & Time

Unix Timestamp Converter
Days Between Dates Calculator
Add/Subtract Days Calculator

Security

JWT Parser