Encode and decode Base64 data with comprehensive UTF-8 multibyte character support and invalid format validation.
How to Use This Tool
- Paste your code, payload, schema, or query into the source editor.
- Choose indentation spacing (2 or 4 spaces), formatting flags, or conversion mode.
- Inspect syntax validation or decoded output in real time, then click Copy Code or Download.
Supported Formats, Boundaries & Privacy
Inputs & Boundaries: Executes locally within your browser sandbox without external network compiler or relay dependencies.
Local Client-Side Processing: Tool computations and file operations execute 100% locally within your browser sandbox via JavaScript and HTML5 Web APIs. Your input values, uploaded files, and computed results are never transmitted to our web servers. General site access, analytics, and advertising cookies are managed transparently under our Privacy Policy and Cookie Policy.
Frequently Asked Questions
Does this Base64 tool support non-English Unicode characters and emojis?
Yes. It converts strings through proper UTF-8 byte encoding and decoding, preventing character corruption.
Is Base64 considered encryption?
No. Base64 is an encoding format designed for safe binary transport, not encryption. It offers zero confidentiality.