Smart online tools
designed to simplify and streamline your everyday tasks.

Ubikami offers a powerful collection of free online tools—generators, converters, encoders, formatters, and more—designed to save time and boost productivity. Whether you're a developer, student, teacher, or everyday user, our fast and easy-to-use utilities help you work smarter, solve problems, and stay organized—anytime, anywhere.

Ubikami - Free online tools

🔥 Most popular tools

Sudoku Generator
Sudoku Generator
Game
Generate free, printable Sudoku puzzles online with varying difficulty levels. Play, solve, or share instantly. Each puzzle includes a full answer key for easy solving.
GUID Generator
GUID Generator
Generator
Generate unique and secure GUIDs / UUIDs quickly in bulk with our free easy-to-use tool with multiple available formating options.
Currency Converter
Currency Converter
Unit converter
Currency converter for global currencies & crypto. Check exchange rates & convert USD, EUR, BTC, ETH, and more instantly.

🧰 Tools directory

Timestamp Converter
Timestamp Converter New !
Unit Converter
Online Unix timestamp converter. Convert Unix timestamps to dates and back with ISO 8601, RFC 2822 and millisecond precision.
Binary Encoder/Decoder
Binary Encoder/Decoder New !
Encoder/Decoder
Online binary encoder/decoder for text. Convert strings to 8-bit binary and decode binary data with or without separators.
Sudoku Generator
Sudoku Generator
Game
Generate free, printable Sudoku puzzles online with varying difficulty levels. Play, solve, or share instantly. Each puzzle includes a full answer key for easy solving.
Addition Worksheet Generator
Addition Worksheet Generator
Education
Create free custom addition worksheets online. Choose digits, layout, and generate printable math problems for classroom or home use.
Subtraction Worksheet Generator
Subtraction Worksheet Generator
Education
Create free custom subtraction worksheets online. Choose digits, layout, and generate printable math problems for classroom or home use.
Multiplication Worksheet Generator
Multiplication Worksheet Generator
Education
Create free custom multiplication worksheets online. Choose digits, layout, and generate printable math problems for classroom or home use.
Random Team Generator
Random Team Generator
Randomizer
Quickly split names into random teams with our Random Team Generator! Perfect for games, projects, or events. Easy, fast, and fair team selection!
Currency Converter
Currency Converter
Unit converter
Currency converter for global currencies & crypto. Check exchange rates & convert USD, EUR, BTC, ETH, and more instantly.
XML to JSON Converter
XML to JSON Converter
Data converter
Quickly and easily convert XML to JSON with our online tool. Free, fast, and user-friendly, it ensures accurate data transformation.
JSON to XML Converter
JSON to XML Converter
Data converter
Convert JSON to XML effortlessly with our online converter. Fast, reliable, and easy-to-use tool for developers and data professionals.
Weight Converter
Weight Converter
Unit converter
Quick and easy weight converter for pounds, kilograms, ounces, and more. Convert units instantly with accurate results and a user-friendly interface.
Time Converter
Time Converter
Unit converter
Instantly convert between seconds, minutes, hours, days, and more with our accurate and easy-to-use time converter tool.
Length Converter
Length Converter
Unit converter
Convert lengths effortlessly with our free length converter tool. Instantly switch between units like meters, centimeters, feet, inches, miles and more!
Temperature Converter
Temperature Converter
Unit converter
Convert temperatures easily between Celsius, Fahrenheit, Kelvin, and more with our fast and accurate temperature converter. Simple, quick, and free!
Password Generator
Password Generator
Generator
Create strong, secure passwords with customizable options for length, uppercase letters, numbers, and symbols. Generate random passwords instantly!
CSV to JSON Converter
CSV to JSON Converter
Data converter
Convert CSV to JSON easily with our free online tool. Fast, accurate, and user-friendly for seamless data transformation in just a few clicks.
JSON to CSV Converter
JSON to CSV Converter
Data converter
Convert JSON to CSV effortlessly with our free online tool. Quick, accurate, and simple for seamless data formatting in just a few steps.
QR Code Generator
QR Code Generator
Generator
Generate QR codes for URLs, text, WiFi, and more with our free tool. Fast, customizable, and supports multiple formats for all your needs.
API Key Generator
API Key Generator
Generator
Generate API keys effortlessly with customizable options for size, complexity, and bulk creation. Secure, fast, and tailored to your needs.
Random Name Picker
Random Name Picker
Randomizer
Spin the wheel to pick names quickly and easily with our Random Name Picker! Perfect for raffles, classroom activities, team assignments, or decision-making.
CSS Minify
CSS Minify
Formatter
Minify your CSS quickly and efficiently with our free online tool. Reduce file size, improve load times, and boost website performance in seconds!
CSS Beautify
CSS Beautify
Formatter
Beautify and format your CSS code with our easy-to-use tool. Improve readability, organize styles, and make your code cleaner and easier to maintain with just a click!
JSON Minify
JSON Minify
Formatter
Minify your JSON files effortlessly with our online tool. Reduce file size, improve data transmission speed, and optimize performance with fast and reliable JSON compression.
JSON Beautify
JSON Beautify
Formatter
Beautify and format your JSON data with our online tool. Improve readability, organize your code, and make it easier to debug and work with structured data effortlessly.
GUID Generator
GUID Generator
Generator
Generate unique and secure GUIDs / UUIDs quickly in bulk with our free easy-to-use tool with multiple available formating options.
Secret Santa Generator
Secret Santa Generator
Randomizer
Create fun and easy Secret Santa gift exchanges with our automated generator. Organize your holiday gift swaps effortlessly by matching participants and keeping it all a surprise!
Base64 Encode
Base64 Encode
Encoder/Decoder
Convert text and files to Base64 with our easy-to-use online encoder. Fast, secure, and free—perfect for developers and data encoding needs!
Base64 Decode
Base64 Decode
Encoder/Decoder
Decode Base64-encoded text and files easily with our free online tool. Fast, secure, and reliable—perfect for developers and data decoding needs!
URL Encode
URL Encode
Encoder/Decoder
Encode URLs quickly and securely with our free online URL encoder. Convert special characters to a safe format for web use—fast, easy, and reliable!
URL Decode
URL Decode
Encoder/Decoder
Decode URL-encoded strings instantly with our free online tool. Convert encoded URLs back to readable text—fast, easy, and secure!