🔐 Base64 Converter

Free Online Text to Base64 Converter

Input Text

Characters: 0 Bytes: 0

Output

Characters: 0 Compression Ratio: 1:1

Free Online File to Base64 Converter

📁
Drop file here or click to select
Maximum file size: 10MB

Decode Base64 to File

Free Online Image to Base64 Converter

🖼️
Drop image here or click to select
Supported: JPG, PNG, GIF, WebP, SVG

How to Use

Free Online Text Conversion

  1. Enter text in the input area
  2. Click "Encode to Base64" or "Decode from Base64"
  3. Copy or download the result

Free Online File Conversion

  1. Drop or select a file (max 10MB)
  2. Click "Encode File to Base64"
  3. Copy the Base64 string or generate Data URI
  4. To decode: paste Base64, enter filename, click "Decode to File"

Free Online Image Conversion

  1. Upload an image file
  2. Preview the image and check details
  3. Click "Encode Image to Base64"
  4. Copy Base64 string or Data URI for web use

Base64 Converter

Encode/decode Base64 for text, images, and files in your browser. Includes Data URI generation and Base64-to-file download. File tab supports up to 10MB.

Developer Tools

How people use it

This browser-based tool is designed to be fast, easy to use, and private by default. Open the tool, adjust the settings, and get results instantly without creating an account or sending files to a server.

Everything runs locally in the browser whenever possible, which reduces friction for users and makes the page more useful as a direct-answer landing page from search.

Common topics

The following topics are closely related to this tool and help explain what it is for:

Quick answers

What can this Base64 converter do?

It encodes/decodes Base64 for text, converts files/images to Base64, generates Data URIs, and can decode Base64 back into a downloadable file.

Is there a file size limit?

Yes. The File tab supports up to 10MB per file (the limit is enforced in the browser).

How do I generate a Data URI?

After encoding a file or image, use the Data URI option to copy a string like data:<mime>;base64,<data>.

More tools to explore

Base64 Converter Documentation & Guide

Encode/decode Base64 for text, images, and files in your browser. Includes Data URI generation and Base64-to-file download. File tab supports up to 10MB. Local-first, no uploads.

Overview

Base64 Converter is an easy and free online tool that runs in your browser.

What you can do with this tool

Key capabilities (based on the actual UI and code):

  • Supports files: image/*
  • Has modes/tabs: text, file, image
  • Runs in your browser (local-first)

Read the full guide forBase64 Converter