Base64 Encoder / Decoder
Encode and decode text strings and files to/from Base64.
Browser RAM • 0 Uploads
Engine: Client JavaScript
Zero-Upload In-Browser Execution GuaranteeVerified Local RAM
Processed directly on your device. Nothing is uploaded. This tool uses native Web APIs, Canvas, and client-side WebAssembly to process your files inside local browser RAM. No server receives your file, no telemetry logs your data, and no account is required.
Key Capabilities
- Bidirectional: Encode to Base64 & Decode from Base64
- Full UTF-8 support (properly handles emoji, accents, non-ASCII characters)
- URL-safe Base64 mode toggle
- Instant copy and file download options
How To Use
1
Select Mode
Choose Encode or Decode.
2
Enter Text
Type or paste your text content.
3
View Result
Review and copy the converted output.
Frequently Asked Questions
Does this support UTF-8 characters like emojis?
Yes! It uses a modern TextEncoder/TextDecoder pipeline so non-ASCII characters and emojis never corrupt.
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