Free Base64 Encoder Online - Encode to Base64 Instantly | Base64 Encoder Tool

Encode text and strings to Base64 format instantly with our free online Base64 encoder. Supports URL-safe Base64, batch processing, and real-time encoding. No installation required.

How it Works?

Our Base64 encoder tool converts text and strings into Base64-encoded format. Simply paste your text and get instant Base64-encoded results.
  • Setup
    Paste your text or string to encode
  • Encode
    Tool automatically encodes to Base64 format
  • Configure
    Choose URL-safe Base64 if needed
  • Copy
    Get encoded result and copy to clipboard

Base64 Encoder

Encoded Result:

What is Base64 Encoding?

Base64 is an encoding scheme that converts text and binary data into ASCII text format.
It's commonly used for:
  • Embedding images in HTML/CSS (data URIs)
  • Encoding email attachments
  • Storing binary data in JSON/XML
  • URL encoding (URL-safe variant)
  • API data transmission

Base64 uses 64 characters:
  • A-Z, a-z, 0-9, +, and / (with = for padding).
Our encoder supports both standard and URL-safe Base64:
  • Standard: Uses `+` and `/` characters
  • URL-safe: Uses `-` and `_` instead (no padding)
  • Perfect for URLs and filenames

URL-Safe Base64

Quick FAQ

  • Common Use Cases
    • Web Development: Encode data for data URIs
    • APIs: Encode request data
    • Email: Encode email attachments
    • Data Storage: Encode binary data for JSON/XML
    • Security: Encode tokens and credentials
    • Image Processing: Encode images for embedding
    1
  • Real-Time Encoding
    Our Base64 encoder updates results in real-time as you type. No need to click a button - just paste and see results instantly. The tool automatically encodes your text.
    2
  • Batch Processing
    Process multiple strings at once! Paste text one per line and the encoder will process each string, returning all Base64-encoded results. Perfect for:
    • Processing lists of text data
    • Bulk encoding operations
    • Data preparation for APIs
    • Converting multiple strings
    3
  • Perfect for Web Developers
    This Base64 encoder is essential for developers working with:
    • JavaScript Base64 operations (btoa, atob)
    • API development and testing
    • Data processing and transformation
    • Web scraping and data extraction
    • Image and file handling
    4
💡 Enhance Your URL Processing with Link Grabber!

Looking to extract and process links from websites? Our SafeLinks decoder pairs perfectly with Link Grabber Chrome extension - the professional tool for automated link extraction and site crawling.

Why use both tools together?
  • Encode data for URLs with our Base64 encoder
  • Extract links automatically using Link Grabber
  • Process large datasets efficiently
  • Handle data encoding in web scraping workflows
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