About Base64 Encoder & Decoder
Free online Base64 encoder and decoder. Convert text to Base64 encoding or decode Base64 strings back to plain text. Supports UTF-8, file encoding, and URL-safe Base64 variants. Process data instantly in your browser with no server uploads.
Frequently Asked Questions
What is Base64 encoding?
Base64 is a binary-to-text encoding scheme that represents binary data as ASCII characters. It's commonly used in email attachments, data URIs, and API authentication.
How do I encode text to Base64?
Paste your text in the input panel and select 'Encode'. The Base64 encoded output appears instantly on the right.
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Privacy: This tool runs entirely in your browser. No data is sent to any server. Your input is processed locally using JavaScript and is never stored, logged, or transmitted. Lintly.cloud does not use cookies for tracking and does not require an account.