Is Base64 encryption?

No! Base64 is an encoding scheme, not encryption. Anyone can decode a Base64 string back into its original form instantly. Never use Base64 alone for sensitive security keys.

What is URL-Safe Base64?

Standard Base64 uses '+' and '/' characters which have special meaning in URLs. URL-Safe Base64 replaces '+' with '-' and '/' with '_', and omits padding '=' symbols.

Can I convert images to Data URIs?

Yes! Upload any PNG, JPG, SVG, or WebP image to get an instant base64 string formatted for inline CSS backgrounds or tags.

Base64 Encoder/Decoder

Encode and decode text or files to Base64 format.

Free No Signup 100% Private No Watermark

URL-Safe (RFC 4648)

Convert File / Image

Input Text

42 chars

Result Base64

Output will appear here automatically

More Dev Tools

How to Use Base64 Encoder/Decoder in 3 Easy Steps

Fast, local, and completely free with no software installation required.

Select or Drop Your File

Choose or drag-and-drop your file into the secure workspace directly from your device.

Customize Settings & Process

Adjust desired quality, options, or target formatting in real-time with instant browser processing.

Download Your Finished File

Save your optimized, watermark-free result immediately with zero server uploads or tracking.

About Base64 Encoder/Decoder

Base64 encoding converts binary data and text into an ASCII string format commonly used in data URIs, API payloads, web tokens, and email MIME formatting. This client-side utility lets you encode, decode, convert local files/images to Base64, and export URL-safe Base64 strings with zero server transmission.

All file conversions, resizing, and processing take place directly in your browser using modern WebAssembly and HTML5 Canvas technologies. No data is stored, tracked, or sent across external networks.