Base64 Encoder
Encode and decode Base64 strings
Base64 is a binary-to-text encoding scheme that represents binary data in ASCII format. It's commonly used for encoding data in emails, URLs, and data URIs.
How to Use Base64 Encoder
Encode or decode Base64 in 4 simple steps
Enter Text or Upload File
Type text directly or upload files for encoding. Supports text strings, images, documents, and binary data up to 10MB.
Choose Encode or Decode
Select whether to encode data to Base64 or decode Base64 strings back to original format. Switch between modes instantly.
Process Instantly
Click encode or decode to convert your data immediately. See results in real-time with no server uploads or processing delays.
Copy or Download Result
Copy encoded strings to clipboard or download decoded files. Use the output in your code, APIs, or data transmission.
Why Use Base64 Encoder
Powerful Base64 encoding and decoding
Two-Way Conversion
Both encode and decode Base64 data in one tool. Convert text to Base64 or decode Base64 strings back to original content.
File Support
Encode images, documents, and binary files to Base64. Perfect for embedding images in CSS, HTML, or JSON data.
Client-Side Processing
All encoding happens in your browser. Files never leave your device, ensuring complete security and privacy.
Instant Results
Real-time encoding and decoding with no delays. Process data instantly without waiting for server responses.
Completely Free
Unlimited Base64 encoding and decoding at no cost. No subscriptions, no file size limits beyond 10MB, no restrictions.
Developer Friendly
Perfect for developers working with APIs, data URIs, and web development. Copy Base64 strings directly into your code.
Common Use Cases for Base64 Encoder
See how others use this tool
Email Attachments
Encode files as Base64 for email transmission. Send binary data through email systems that only support text.
Data URIs
Embed images directly in CSS and HTML using Base64 data URIs. Reduce HTTP requests and improve page load times.
API Development
Encode binary data for JSON APIs and web services. Base64 allows binary transmission in text-based protocols.
Authentication Tokens
Encode credentials and tokens for HTTP Basic Authentication. Safely transmit authentication data in headers.
Database Storage
Store binary files in text-based database fields. Convert images and documents to Base64 for database compatibility.
Canvas Export
Export HTML5 Canvas drawings as Base64 images. Convert canvas content to downloadable image files.
Frequently Asked Questions
Base64 is an encoding scheme that converts binary data to ASCII text. It's commonly used to transmit binary data over text-based protocols like email and HTTP.
No, Base64 is encoding, not encryption. It makes data text-safe for transmission but doesn't provide security. Anyone can decode Base64 data easily.
Base64 encoding increases data size by approximately 33%. This is because it represents 3 bytes of binary data using 4 ASCII characters for text compatibility.
Yes! Our Base64 encoder/decoder is completely free with no limitations. Encode and decode unlimited data without any costs or subscriptions.
No, all encoding and decoding happens directly in your browser. Your files never leave your device, ensuring complete privacy and security.
You can encode any file type including images (JPG, PNG, GIF), documents (PDF, DOC), and text files. Maximum file size is 10MB.
Yes! Paste Base64 image data and decode it back to viewable image format. You can then download the decoded image file.
Use Base64 when you need to send binary data through text-only channels, embed images in CSS/HTML, or store binary data in JSON and XML files.
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