Base64 to PNG Converter

Decode Base64 images to PNG with transparency preserved and download the result — all in your browser

Paste Base64 image data and download the result as a PNG with transparency preserved.

Lossless re-encoding through a browser canvas.

Base64 data URL or raw Base64

What is Base64 to PNG Converter

Last reviewed: April 18, 2026

Base64 is a binary-to-text encoding that represents arbitrary data using 64 printable ASCII characters, commonly used to embed binary blobs in JSON, URLs, and emails.

A Base64 data URL is a text-safe encoding of a binary image. Decoding it restores the original bytes so you can download them as a file.

Base64 to PNG Converter accepts a data URL or raw Base64, auto-detects the source format, re-encodes via canvas when needed, and produces a PNG with transparency preserved.

Why use it

Convert a JPEG/WebP data URL into a lossless PNG.
Recover an image stored as a Base64 field in an API response.
Keep alpha transparency when the source format supports it.
Runs entirely in your browser — nothing is uploaded.

Features

Auto-detect source format
Lossless PNG output
Transparency preserved
Canvas-based re-encoding
Decoded PNG preview before download
PNG decoded on-device

How to use Base64 to PNG Converter

Paste Base64. Paste a data URL or raw Base64 string.
Decode. Click Decode to PNG — the preview appears instantly.
Download. Click Download PNG to save the file.

Example (before/after)

Base64 data URL

data:image/jpeg;base64,/9j/4AAQSkZJRgABAQEAYABgAAD/2w…

Downloaded PNG

base64-to-png.png (binary, 42 KB, lossless)

Common errors

Raw Base64 rejected

Some decoders require a `data:` prefix.

Fix: This tool works without the prefix; magic bytes are sniffed to detect the source format.

Whitespace in the input

Copy-paste sometimes introduces stray newlines or spaces that break decoding.

Fix: Whitespace is stripped automatically — just paste and click Decode.

FAQ

Is the output lossless?

Yes. The canvas re-encoding path produces a lossless PNG regardless of the input format.

Is my data uploaded?

No. Decoding and encoding happen entirely in your browser.

Can I paste a raw Base64 without the prefix?

Yes. The tool sniffs PNG/JPEG/GIF/WebP from the first few bytes.

Is transparency preserved?

Yes when the source supports alpha (PNG, WebP). JPEG sources are treated as opaque.

Related tools

Related decoders and image tools: You can also browse the full Image Tools category for more options.

PNG to Base64 Converter

Encode PNG images as Base64 data URLs with transparency preserved for inline CSS, HTML, and emails

Base64 to JPG Converter

Decode a Base64 data URL or string and download it as a JPG image — all client-side

Base64 to Image Converter

Paste any Base64 data URL or raw Base64 string, auto-detect the MIME type, and preview plus download the image

Base64 Encoder/Decoder

Encode or decode Base64 strings

PNG to JPG

Convert PNG images to JPG/JPEG format

Round Image Corners

Add rounded corners to any image with adjustable radius and transparent background — export as PNG

Resize Image

Resize any image to exact pixel dimensions or a percentage, with optional aspect-ratio lock and instant PNG/JPG export

Image to Base64

Convert local image files into Base64 text ready to paste into email, JSON payloads, or data URLs

Base64 to WebP Converter

Re-encode a Base64 image into modern WebP output with quality control and client-side download

Base64 to GIF Converter

Decode a Base64 string back into a GIF image — keep animation when possible or export the first frame

Base64 to SVG Converter

Decode a Base64 SVG data URL back into the original XML and preview it safely in the browser

JPG to PNG

Convert JPG/JPEG images to PNG format