Base64 Encoder & Decoder
Encode text and files into Base64 or decode Base64 data back to raw text and downloadable binaries.
DreamToolkit Base64 Encoder/Decoder converts strings, images, and binary documents into Base64 format and decodes Base64 payloads back to downloadable files directly in your web browser with zero server transmission.
Base64 Encoder & Decoder
All files process in your browser sandbox via WebAssembly & Web Workers
Explore Related Utilities
JSON Formatter & Validator
Beautify, minify, validate, and inspect JSON documents with detailed syntax error indicators.
Regex Sandbox Tester
Live Regular Expression evaluator with real-time capture groups, match counters, and syntax flags.
Word & Character Counter
Calculate words, characters, sentences, reading time, speaking time, and keyword densities in real time.
How to use Base64 Encoder & Decoder
Select Mode
Choose Encode (Text/File to Base64) or Decode (Base64 to Text/File).
Input Data
Paste your string or upload a binary file.
Get Output
Copy the resulting Base64 or download the recovered binary file.
Technical Specifications & Execution Guarantees
| Standard | RFC 4648 Base64 Encoding |
| Modes | Raw Text, Data URI Scheme, Binary Blob Recovery |
Frequently Asked Questions
Can I convert images to Data URI?
Yes, it outputs standard `data:image/...;base64,` prefixes ready for HTML/CSS embedding.