Base64 Encode/Decode
What is Base64 Encode/Decode? (Quick Answer)
Base64 string encoding and decoding Free online tool, no registration required, 100% client-side processing.
Base64 string encoding and decoding
By Craftisle Team
About Base64 Encode/Decode — Free Online Tool
How to Use Base64 Encode/Decode — Step by Step
- Encode text or file
Type text or drag a file into the input area to encode to Base64.
- Decode Base64
Paste a Base64 string to decode it back to original text or download as a file.
- Copy or download
Copy the encoded string to clipboard or download the decoded file.
Use Cases for Base64 Encode/Decode
Email attachments
Base64-encode file attachments for MIME email transmission.
HTML image embedding
Convert small images to Base64 data URIs to reduce HTTP requests.
API payloads
Safely encode binary data for inclusion in JSON or XML API requests.
FAQ — Base64 Encode/Decode Free Online Tool
Does Base64 compress data?
No. Base64 actually increases data size by about 33%. It is for encoding, not compression.
Is Base64 encryption?
No. Base64 is encoding, not encryption. Anyone can decode it. For secure data, use AES or bcrypt.
Is my data private?
Yes. All encoding happens in your browser. Files are never uploaded to any server.