Encode text, decode Base64 strings, or turn files into data URLs — all in your browser. Nothing gets uploaded anywhere.

Input
Empty
Click to Upload Image

PNG, JPG, WebP, SVG supported.

Output

Paste Base64 or plain text on the left to see the result here.

Analysis
0 B
Input Size
0 B
Output Size
0
Characters
0
Lines
Mode Encode
Status Empty
Detected Type None

What you can do with this tool

No sign-up, no uploads, no nonsense. Just Base64 encoding and decoding that works.

Text to Base64

Paste any text and get the encoded output instantly.

File Upload

Drop a file to get its Base64 data URL with correct MIME type.

Image Preview

Decoding an image? You'll see a live preview right here.

Fully Offline

Everything happens in your browser. Zero server calls.

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Convert Images to Base64 Data URLs

Convert a small image into a data URL containing its MIME type and Base64 payload for inline icons, email templates, prototypes, and self-contained HTML or CSS.

When to use image Base64

Data URLs suit small assets. Avoid large photographs because Base64 increases the encoded size.

About this tool

Everything runs securely in your browser. Your text, files, and encoded output never hit a server — there's no backend processing involved at all. This makes it safe to use with API keys, tokens, certificates, or any other sensitive data you'd rather not paste into a random website.

Frequently Asked Questions

Which image formats can be converted?

Common browser-supported formats include PNG, JPEG, WebP, GIF, and SVG.

Does image-to-Base64 reduce image quality?

No. Base64 changes representation, not the underlying image pixels.