Developer Tools Guide

Master essential developer tools for modern web development. Learn how to generate UUIDs, encode/decode Base64, and integrate these tools into your workflow.

2 Dev Tools
4 UUID Versions
100% Free

Quick Start Guide

Get started with developer tools in simple steps

UUID Generator

Generate unique identifiers for databases, APIs, and distributed systems. Choose from multiple UUID versions.

Unique ID Database

Base64 Converter

Encode and decode text, images, and binary data using Base64 encoding for web development and data transmission.

Encoding Data Transfer

UUID Generator Guide

What is a UUID?

A UUID (Universally Unique Identifier) is a 128-bit identifier that is guaranteed to be unique across time and space. UUIDs are commonly used in software development for generating unique identifiers for database records, API endpoints, and distributed systems.

UUID Format:

550e8400-e29b-41d4-a716-446655440000

32 hexadecimal digits displayed in 5 groups separated by hyphens: 8-4-4-4-12

How to Use UUID Generator

Step-by-step instructions:

  1. Visit the UUID Generator tool
  2. Select the UUID version you need (v1, v4, or v5)
  3. Choose the quantity of UUIDs to generate (1-100)
  4. Click "Generate UUIDs" to create new identifiers
  5. Copy individual UUIDs or all generated UUIDs
  6. Use the UUIDs in your application or database

UUID Versions Explained

UUID Version 1 (v1)

Time-based UUID with MAC address.

6ba7b810-9dad-11d1-80b4-00c04fd430c8

  • Includes timestamp
  • Includes MAC address
  • Sortable by creation time
  • Good for distributed systems

UUID Version 4 (v4)

Random or pseudo-random UUID.

f47ac10b-58cc-4372-a567-0e02b2c3d479

  • Completely random
  • Most commonly used
  • No predictable pattern
  • Best for general use

UUID Version 5 (v5)

Name-based UUID using SHA-1.

886313e1-3b8a-5372-9b90-0c9aee199e5d

  • Deterministic
  • Same input = same UUID
  • Good for namespaces
  • Requires namespace and name

Common Use Cases

Database Primary Keys

  • User IDs
  • Order IDs
  • Session IDs
  • Transaction IDs

API Development

  • Resource identifiers
  • Request tracking
  • Correlation IDs
  • API keys

Distributed Systems

  • Microservice IDs
  • Message IDs
  • Event IDs
  • Process IDs

Base64 Converter Guide

Base64 encoding is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's commonly used in web development for data transmission and storage.

What is Base64?

Base64 is an encoding scheme that converts binary data into a text format using 64 different ASCII characters. It's widely used in web development for embedding images, transmitting data over HTTP, and storing binary data in text-based formats.

Base64 Character Set:

ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/

64 characters: A-Z (26), a-z (26), 0-9 (10), +, /, and = for padding

How to Use Base64 Converter

Step-by-step instructions:

  1. Visit the Base64 Converter tool
  2. Choose your operation: Encode or Decode
  3. Enter your text or Base64 string in the input area
  4. Click "Encode" or "Decode" to process the data
  5. Copy the result from the output area
  6. Use the encoded/decoded data in your application

Base64 Encoding

Convert text, images, or binary data into Base64 format for safe transmission and storage.

Base64 Decoding

Convert Base64 encoded strings back to their original text or binary format.

Copy Results

Easily copy encoded or decoded results with a single click for use in your code.

Base64 Examples

Base64 Encoding Examples

Text Encoding

Input:
Hello World!
Base64:
SGVsbG8gV29ybGQh

JSON Encoding

Input:
{"name": "John", "age": 30}
Base64:
eyJuYW1lIjogIkpvaG4iLCAiYWdlIjogMzB9

Base64 Decoding Examples

Text Decoding

Base64:
SGVsbG8gV29ybGQh
Decoded:
Hello World!

URL Decoding

Base64:
aHR0cHM6Ly9leGFtcGxlLmNvbQ==
Decoded:
https://example.com

Common Use Cases

Web Development

  • Data URLs for images
  • HTTP Basic Authentication
  • API data transmission
  • Cookie values

Email & Messaging

  • Email attachments
  • MIME encoding
  • Binary data in emails
  • Message payloads

Data Storage

  • Database BLOB storage
  • Configuration files
  • Serialized objects
  • Binary file encoding

Code Examples

Here are practical code examples showing how to use UUIDs and Base64 in your development projects.

UUID Implementation Examples

JavaScript/Node.js

// Generate UUID v4
const uuid = require('uuid');
const id = uuid.v4();
console.log(id); // f47ac10b-58cc-4372-a567-0e02b2c3d479

Python

import uuid

# Generate UUID v4
id = uuid.uuid4()
print(id) # f47ac10b-58cc-4372-a567-0e02b2c3d479

Base64 Implementation Examples

JavaScript

// Encode
const text = 'Hello World!';
const encoded = btoa(text);
console.log(encoded); // SGVsbG8gV29ybGQh

// Decode
const decoded = atob(encoded);
console.log(decoded); // Hello World!

Python

import base64

# Encode
text = 'Hello World!'
encoded = base64.b64encode(text.encode()).decode()
print(encoded) # SGVsbG8gV29ybGQh

# Decode
decoded = base64.b64decode(encoded).decode()
print(decoded) # Hello World!

Frequently Asked Questions

What's the difference between UUID versions?

UUID v1 includes timestamp and MAC address, v4 is completely random, and v5 is deterministic based on a namespace and name. Choose v4 for most use cases.

Are UUIDs guaranteed to be unique?

UUIDs are designed to be unique across time and space. The probability of collision is extremely low, making them suitable for most applications.

When should I use Base64 encoding?

Use Base64 when you need to transmit binary data over text-based protocols, embed data in URLs, or store binary data in text formats.

Is Base64 encoding secure?

Base64 is encoding, not encryption. It's not secure for sensitive data. Use proper encryption for security-sensitive applications.

Can I use these tools for commercial projects?

Yes! All our developer tools are free to use for any purpose, including commercial projects. No attribution required.

How do I integrate these tools into my workflow?

Use our tools for quick testing and validation. For production code, use proper libraries like uuid for Node.js or uuid module for Python.