Does Base64 encrypt or secure my data?

No. Base64 is strictly an encoding format, not an encryption method. Anyone can easily decode a Base64 string. It should never be used alone to secure passwords or confidential information.

Can I encode images into Base64 data URLs?

Yes! Click the "Encode Any File" button and check "Include Data URI prefix". You can copy the resulting string to embed images directly into HTML tags or CSS backgrounds.

Is my data stored or sent to a server?

No. Quicklity runs 100% inside your local web browser. Your text and files never leave your device.

Developer ToolsUTF-8 Safe • Fast

Base64 Encoder / Decoder

Encode text or files into Base64 format and decode Base64 strings back to text. 100% private in-browser conversion.

Include Data URI prefixEncode Any File

Input Text or File0 chars

Base64 Output

How to Use Base64 Encoder / Decoder

Follow these simple steps to complete your task in seconds.

Select Encode or Decode Mode

Choose whether you want to encode plain text/files into Base64 or decode a Base64 string back into text.

Enter Text or Upload File

Type or paste your input into the left box, or click "Encode Any File" to load an image or document.

Copy or Download Output

View the converted Base64 result on the right, copy it with one click, or download it as a text file.

Why Choose Quicklity for Base64 Encoder / Decoder

Engineered for speed, privacy, and flawless conversion accuracy.

Full UTF-8 Text Support

Properly handles international characters, emojis, and multilingual Unicode strings without corrupted byte sequences.

File to Base64 Encoding

Upload images, PDFs, or binary files to instantly generate standard Base64 data strings with optional Data URI prefixes.

Instant In-Browser Execution

Processes conversions client-side with zero network delay and no server uploads for total privacy.

One-Click Swap Action

Quickly invert the input and output to toggle back and forth between encoded and decoded values.

Frequently Asked Questions about Base64 Encoder / Decoder

Everything you need to know about using this tool.

Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It is widely used to embed images directly in HTML/CSS (data URIs), send email attachments (MIME), and transfer binary data through text-only network protocols.

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