CSV Compare
Compare two CSV files and find differences with row matching and column selection.
- Match by row number or key column
- Select specific columns to compare
Text / Code
Base64 Encoder/Decoder
Encode and decode text or images to/from Base64.
Base64 Encoder/Decoder
Features
Encode text to Base64
Decode Base64 to text
Upload Image button for image encoding
Encode/Decode toggle buttons
Clear input button
Copy output to clipboard
Real-time conversion
Large text area for input/output
About Base64 Encoder/Decoder
Base64 encoding is essential for embedding binary data in text-based formats like JSON, XML, or HTML. This encoder/decoder provides instant conversion between plain text and Base64. Upload images directly or paste text, then switch between encode and decode modes with a single click.
How It Works
- 1
Type or paste text in the Input field
- 2
Click Encode to convert to Base64, or Decode to convert from Base64
- 3
Use Upload Image to encode an image file
- 4
Click Clear to reset the input
- 5
Copy the output with the Copy button
Use Cases
Embedding images in HTML or CSS data URIs
Encoding binary data for JSON APIs
Decoding Base64-encoded email attachments
Creating data URIs for web development
Encoding authentication credentials
Working with JWT tokens and API keys
Frequently Asked Questions
What's the difference between standard and URL-safe Base64?
URL-safe Base64 replaces '+' with '-' and '/' with '_' to make the encoded string safe for use in URLs without additional encoding. Use this when embedding Base64 in query parameters or URLs.
Can I encode binary files like images?
Yes, you can drag and drop any file to encode it as Base64. For images, the tool also shows a preview of the encoded image so you can verify it's correct.
Why does Base64 make data larger?
Base64 encoding increases data size by approximately 33% because it represents binary data using only 64 ASCII characters. This overhead is the trade-off for being able to safely transmit binary data in text-only contexts.
Ready to Use Base64 Encoder/Decoder?
Download PrimeUtils and get access to Base64 Encoder/Decoder plus 20+ other developer tools.