Encode and decode text or files to and from Base64. Supports images, documents, and any file type. Everything runs locally in your browser.
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What is Base64 Codec?
A privacy-first encoder and decoder for text and files. Encoding and decoding both happen in your browser using vanilla JavaScript — no upload, no server. Drag a file in or paste a Base64 string and copy or download the result. Works offline, with no size limit beyond browser memory.
