Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 strings back to plain text. All processing in your browser.
Base64 Encoder / Decoder
About this tool
The Base64 Encoder / Decoder converts text to Base64 encoding or decodes Base64 back to plain text instantly.
Base64 is widely used for embedding binary data in text formats like HTML, CSS, JSON, and email attachments.
All processing happens entirely in your browser — no data is ever sent to our servers.
Common Use Cases
- 1Encoding images as data URIs for embedding in CSS/HTML
- 2HTTP Basic Authentication headers (encode username:password)
- 3Transferring binary data through text-based APIs
- 4Decoding Base64 responses from APIs or config files
Frequently Asked Questions
Related Tools
JSON Formatter
Format, validate and beautify JSON data instantly online.
Developer Tools
JSON Minifier
Minify and compress JSON data to reduce file size.
Developer Tools
UUID Generator
Generate unique UUIDs (v1, v4) instantly for your projects.
Developer Tools
JWT Decoder
Decode and inspect JSON Web Token (JWT) payloads.
Developer Tools