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Base64 Encoder / Decoder

Q: Is Base64 the same as encryption?

No. Base64 is an encoding scheme, not an encryption algorithm. It does not provide any security or confidentiality. Anyone who has the Base64 string can decode it back to the original data instantly. If you need to protect data, use proper encryption (AES, RSA, etc.). Base64 is used purely to represent binary data as plain text.

Encode text or files to Base64 and decode Base64 strings — all client-side

Mode:

Input Text PASTE HERE

Base64 Output RESULT

Encode File to Base64 UPLOAD

📁

Drop any file here

or click to browse — images, PDFs, documents, any file type

📂 Browse Files

Base64 Output

Decode Base64 to File DOWNLOAD

Paste Base64 String

Output Filename

About Base64 Encoder / Decoder

Base64 Encoder / Decoder is a free, browser-based utility built for developers and engineers who need a fast, reliable way to encode text or files to base64 and decode base64 strings — all client-side. Whether you're debugging an API response, preparing data for deployment, or validating configuration files, this tool handles the job in seconds — with zero server calls. Everything runs locally in your browser, so your source code and data stay private.

How to Use

📝 Text Mode

Select Text tab Click the "Text" tab at the top of the tool.

Choose Encode or Decode Toggle the mode button — Encode to convert text to Base64, Decode to reverse it.

Paste your text Enter plain text (for encoding) or a Base64 string (for decoding) in the left box.

Click Encode / Decode The result instantly appears on the right. Click Copy to grab it.

📁 File Mode

Select File tab Click the "File" tab to switch to file mode.

Drop or browse a file Drag-and-drop any file onto the zone, or click Browse to pick one.

Encode to Base64 Click "Encode to Base64" to generate the Base64 string, then copy it.

Or decode & download Paste a Base64 string in the lower section, enter a filename, and click Download.

🔒 Privacy note: All encoding and decoding happens entirely in your browser using native JavaScript APIs. No data is ever uploaded or transmitted.

Frequently Asked Questions

Base64 is a binary-to-text encoding scheme that converts binary data into an ASCII string format. It uses a set of 64 characters (A–Z, a–z, 0–9, +, /) to represent binary data. It is widely used in email (MIME), data URLs in HTML/CSS, embedding binary files in JSON, and transmitting binary data over text-based protocols.

Yes, completely. This tool uses only native browser JavaScript APIs (btoa, atob, FileReader, and Blob). Your text and files are never uploaded to any server, never logged, and never leave your device. Closing the browser tab clears everything.

Any file type is supported — images (PNG, JPG, GIF, WebP, SVG), documents (PDF, DOCX, XLSX), archives (ZIP, TAR), audio, video, and any other binary format. The file is read using the browser's FileReader API, so there is no server-side restriction.

No. Base64 is an encoding scheme, not an encryption algorithm. It does not provide any security or confidentiality. Anyone who has the Base64 string can decode it back to the original data instantly. If you need to protect data, use proper encryption (AES, RSA, etc.). Base64 is used purely to represent binary data as plain text.