Base64 Encoder

Encode text and files into Base64 instantly with a clean browser-based tool. Create standard Base64, URL-safe Base64, wrapped output, raw file Base64, and full data URI results.

Text to Base64 File to Base64 Animated Hover UI

Encode safely inside your browser

Enter text or choose a local file and instantly generate copy-ready Base64 output without uploading data to a server.

Free Base64 Encoder

Encode plain text, Unicode text, JSON, HTML, CSS, images, PDFs, and small files into Base64.

Enter Text or Upload File

Encoding Mode Select input type

Text Input Unicode supported

Output Type

Line Wrap

Please enter text or choose a file.

Quick Examples

Encoded Results

Base64 Output No output yet.

Data URI Output No data URI yet.

Original Size 0 Bytes

Encoded Size 0 Characters

Output Mode Standard Base64

File Type Text / Plain

Result copied successfully.

What Is a Base64 Encoder?

A Base64 Encoder is an online tool that converts text or file data into a Base64 string. Base64 is commonly used when binary data needs to be stored or transferred as plain text.

Developers use Base64 for data URIs, email attachments, API payloads, JSON data, HTML embedding, CSS image embedding, tokens, small file previews, and safe text-based data transfer.

Base64 Basics

Base64 uses A-Z, a-z, 0-9, +, /, and = padding

URL-safe Base64 replaces + with - and / with _

Base64 output is usually larger than the original data

Why Base64 Encoding Matters

Base64 encoding is useful for sending binary content through systems that mainly accept text. It is not encryption, but it makes data easier to transport in text-based formats.

How It Works

Select input mode

Choose Text to Base64 or File to Base64 depending on what you want to encode.

Enter text or choose file

Paste text, JSON, HTML, CSS, Unicode text, or select a local file from your device.

Choose output format

Select standard Base64, URL-safe Base64, and optional line wrapping.

Copy your result

Copy the Base64 string or full data URI output for your project or report.

Base64 Encoder FAQs

Simple answers about Base64 encoding, URL-safe Base64, data URIs, and browser-based encoding.

A Base64 Encoder converts text or file data into a Base64 string that can be copied, stored, or transferred as plain text.

No. Base64 is encoding, not encryption. Anyone can decode Base64 back to the original readable data.

Yes. The tool supports Unicode text, including non-English scripts, symbols, and emojis.

URL-safe Base64 replaces plus signs with hyphens and slashes with underscores, making the output easier to use inside URLs.

No. The encoding runs in your browser. Your selected file is not uploaded to the server by this tool.