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Encode plain text, JSON, XML, JWT payloads, and UTF-8 content into Base64 or decode Base64 strings back into readable text instantly online.
This free online Base64 tool helps you encode readable text into Base64 format and decode Base64 strings back into plain text instantly. It supports UTF-8 text, JSON payloads, XML, HTML snippets, JWT token data, API requests, and other text-based content directly in your browser.
Base64 is a text encoding format that converts binary or textual data into ASCII characters. It is commonly used in APIs, email attachments, authentication tokens, images, and web applications where data needs to be transferred safely over text-only systems.
Plain Text
Hello World
Base64 Output
SGVsbG8gV29ybGQ=
Encode normal text, emojis, special characters, and multilingual UTF-8 content.
Convert JSON request bodies, API responses, and structured application data.
Encode XML documents, HTML snippets, and markup safely into Base64 format.
Decode JWT payloads and inspect Base64-encoded authentication content.
Encode request payloads and inspect encoded API responses during debugging.
Decode Base64 token payloads used in authentication systems and APIs.
Base64 is commonly used for safely transferring email attachment data.
Convert images and assets into Base64 for inline HTML or CSS usage.
Base64 encoding converts text or binary data into a text-based ASCII format that can be safely transmitted over the internet.
No. Base64 is not encryption. It only transforms data into a readable text format that can easily be decoded.
Yes. This tool supports UTF-8 text, Unicode characters, emojis, JSON, XML, HTML, and other text-based formats.
No. All Base64 encoding and decoding happens locally in your browser for better privacy and security.