Which formats are supported?

This tool only supports PNG files (image/png). Only PNG files can be uploaded and processed. Other file types will be rejected to ensure data integrity and proper encoding/decoding.

How do I use Base64 PNG in HTML?

Use the Base64 string in an img tag or download link with the data URI format: Download PNG

Can I use Base64 PNG in JSON?

Yes! Base64 PNG images are commonly used in JSON APIs to send images as text strings: { "image": "data:image/png;base64,YOUR_BASE64_STRING", "filename": "image.png", "type": "image/png" }

Why is the Base64 string longer than the original file?

Base64 encoding increases the size of binary data by approximately 33%. This is because Base64 uses 4 characters to represent every 3 bytes of binary data. A 1MB PNG image will result in approximately 1.33MB of Base64 text.

Is my file uploaded to a server?

Yes! All PNG processing happens entirely in your browser using JavaScript. Your images are never sent to any server, stored, or shared. Everything is processed locally on your device, ensuring complete privacy and security.

Coding Tools

Encode PNG to Base64 Online Free

Free Base64 to PNG Converter Online. Convert PNG images to Base64 strings or decode Base64 to PNG instantly. Perfect for embedding PNG images in HTML, CSS, or JSON.

Encode PNG to Base64

Upload a PNG file to get a Base64 string.

encode decode

Upload PNG file

Upload file

Click to browse or drag and drop · PNG files

Base64 output

Encode & Decode related

Decode Base64 to PNG Encode Image to Base64 Encode JPG to Base64 Encode GIF to Base64 Encode PDF to Base64

Other Coding Tools

View all

Overview

What is Base64 PNG?

A Base64 PNG is a PNG image file that has been encoded into a text string using Base64 encoding. This allows PNG images to be embedded directly in HTML, CSS, JSON, or other text-based formats without requiring separate image files or external URLs.

How to use

How to Use Base64 PNG Encoder/Decoder?

1
Upload a PNG or paste Base64
On the Encode tab, upload a PNG file (up to 5MB). On the Decode tab, paste a Base64 string or data URI.
2
Encode or Decode
Click Encode to convert your PNG to Base64, or Decode to turn Base64 back into a PNG preview.
3
Copy or download the result
Copy the Base64 string, or download the decoded PNG file. Everything runs locally in your browser.

Features

Benefits

Embed images directly in HTML without external files

Store images in databases as text strings

Include images in JSON APIs and configuration files

Send images via email or messaging systems that only support text

Create self-contained HTML documents with embedded images

FAQ

Frequently Asked Questions - FAQs

Quick answers about Encode PNG to Base64.

This tool supports PNG files up to 5MB in size. For larger images, consider using command-line tools or programming libraries. Keep in mind that Base64 encoding increases file size by approximately 33%.

Love this Tool? Share it Now!

Help others discover this free tool

Explore

More tools you may like