Free Base64 Encoder & Decoder Online - Convert Text & Files
Encode and decode Base64 strings instantly. Convert text, images, and files to Base64 format. Free, fast, and secure Base64 conversion tool.
What is Base64 Encoding?
Base64 is a binary-to-text encoding scheme that converts binary data into ASCII text format. It uses 64 different ASCII characters (A-Z, a-z, 0-9, +, /) to represent binary data, making it safe for transmission over text-based protocols like email, JSON, or XML.
Common Use Cases for Base64
- Embedding Images: Encode images directly in HTML or CSS using data URIs
- API Data Transfer: Send binary data through JSON APIs
- Email Attachments: Encode files for MIME email transmission
- Data Storage: Store binary data in text-based databases
- URL Parameters: Safely pass binary data in URLs
How to Use This Tool
- Choose Encode or Decode mode
- For text: Enter your text or Base64 string
- For files: Switch to File Mode and upload your file
- Click the convert button to process
- Copy the result to your clipboard
Frequently Asked Questions
What is Base64 encoding?
Base64 is a binary-to-text encoding scheme that represents binary data in ASCII string format. It's commonly used to encode data for transmission over text-based protocols.
When should I use Base64 encoding?
Use Base64 for embedding images in HTML/CSS, encoding data in URLs, storing binary data in JSON/XML, or transmitting binary data over text-only channels.
Is Base64 encryption?
No, Base64 is encoding, not encryption. It's easily reversible and provides no security. Use proper encryption for sensitive data.
Can I encode files to Base64?
Yes! Switch to file mode to upload and convert files (images, documents, etc.) to Base64 format.