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SEO
Sitemap Generator Screenshot

AI-Powered Sitemap Generator

Automatically generate XML sitemaps for better search engine visibility

Productivity
Work Life Balance Assistant Screenshot

Work Life Balance Assistant

Track and optimize your productivity and well-being

Development
HTML/DOM Element Generator Screenshot

HTML/DOM Element Generator

Quickly create HTML elements with customizable attributes and styles and live preview

Accessibility
Color Contrast Checker Screenshot

Color Contrast Checker

Professional WCAG 2.1 AA/AAA accessibility compliance testing for web content

Development
JSON Formatter & Validator Screenshot

JSON Formatter & Validator

Professional JSON tool with advanced validation, formatting & analysis features

Tools & Utilities

Base64 Encoder/Decoder

Safe Text and File Conversion with Advanced Features

Convert text and files safely to Base64 and vice versa. Our professional Base64 Encoder/Decoder offers Drag & Drop, Batch Processing, Progress Indicators and complete client-side processing for maximum security.

🔒 100% Secure

Client-side processing - files never leave your browser

📁 Multi-Format

Supports text, images, documents and all file types

⚡ Fast

WebWorker-based processing for optimal performance

📊 Batch Processing

Multiple files simultaneously with progress indicator

Select Mode

Input

🖼️ Dekodiertes Bild erkannt!

Bild-Informationen:
Format:
MIME-Type:
Dateigröße:
Abmessungen:
💡 Tipp:

Das Bild wurde erfolgreich aus dem Base64-Code dekodiert. Sie können es jetzt herunterladen oder weiter verwenden.

Drop files here or click to select Drop files here

Supports: Images, Documents, Archives - max. 50MB per file Click to add more files or process selected files below

Selected Files ()

Batch Processing
Total:
class="w-full mt-4 px-6 py-3 bg-blue-600 text-white rounded-lg font-semibold hover:bg-blue-700 disabled:opacity-50 disabled:cursor-not-allowed focus:outline-none focus:ring-2 focus:ring-blue-400 transition-colors" > ⏳ Processing...
Progress

⚠️

Output

Statistics:

Characters:
Size:
Type:
Status: ✓ Successful

Advanced Features

Frequently Asked Questions (FAQ)

Base64 is an encoding method that converts binary data into ASCII characters. It is commonly used for:

  • Email attachments (MIME encoding)
  • Embedding images in HTML/CSS (Data URIs)
  • Transmitting binary data over text-based protocols
  • API authentication and token creation
  • Configuration files and data export

Absolutely secure! Our tool performs all processing client-side in your browser. This means:

  • Your files are never sent to our servers
  • All data remains on your computer
  • No storage or logging of content
  • Works offline after initial load

All file types are supported:

  • Images (JPG, PNG, GIF, SVG, WebP, etc.)
  • Documents (PDF, DOC, XLS, TXT, etc.)
  • Archives (ZIP, RAR, 7Z, etc.)
  • Audio/Video (MP3, MP4, AVI, etc.)
  • Code files (HTML, CSS, JS, PHP, etc.)

Size limitations: Up to 50MB per file (browser-dependent). For larger files, please use batch processing.

URL-Safe Base64 is a variant that can be used in URLs without causing problems:

  • Standard Base64: Uses +, / and = characters
  • URL-Safe Base64: Replaces + with -, / with _ and often removes padding (=)
  • Ideal for JWT tokens, URL parameters and filenames
  • Prevents encoding problems in URLs

Base64-encoded images can be embedded directly in HTML (Data URI):

<img src="data:image/png;base64,iVBORw0KGgoAAAANS..." alt="Description">

Advantages:

  • No separate HTTP requests for images
  • Images are directly contained in the HTML code
  • Works offline without external dependencies

Disadvantages: Increases HTML file size by about 33% compared to the original image file.

Yes, completely! Our tool is developed according to WCAG 2.1 AA standards:

  • Keyboard Navigation: Tab, Enter, Space, Arrow keys
  • Screen Reader: Complete ARIA labels and descriptions
  • Focus Indicators: Clearly visible focus frames
  • Contrast: At least 4.5:1 contrast ratio
  • Shortcuts: Ctrl+V (Paste), Ctrl+C (Copy)