Why would I need to just clone a PNG?

Cloning gives you a fresh, independent copy of an image's pixel data re-encoded through the browser — useful as a quick 'save a working copy before editing' step, to strip any non-pixel metadata the original file might carry, or simply as a sanity check that decoding and re-encoding round-trips cleanly.

How is this different from the duplicator tool?

The duplicator tiles multiple copies of an image together into one larger strip. This cloner produces exactly one copy, unchanged, at the same size as the source.

Does cloning lose any image quality?

The pixel data itself is copied exactly, byte for byte. However, since the output is re-encoded as a new PNG by the browser, any non-pixel metadata (like EXIF data or color profiles) the original file carried isn't preserved.

Is the cloned image editable independently of the original?

Yes. The clone is backed by a completely separate copy of the pixel buffer, so any further edits to it (in another tool) never affect the original uploaded file.

PNG Cloner - Make an Exact Copy of an Image Online

Overview

Introduction

This tool creates an exact, independent copy of a PNG image's pixel data, entirely client-side.

It's the simplest tool in the PNG category: no transform, filter, or edit — just a clean, validated copy.

What Is PNG Cloner?

A client-side PNG cloning tool that reads an uploaded image's pixel data, validates it, and copies it into a fresh, independent buffer with identical dimensions and colors.

The clone is then re-encoded as a new PNG file by the browser's canvas for download.

How PNG Cloner Works

The tool validates the uploaded image's pixel buffer (confirming its data length matches its declared width and height) and then allocates a brand-new Uint8ClampedArray, copying every byte from the source into it.

Because the copy uses a fresh underlying array rather than referencing the original, further edits made to the clone (in this tool or another) never mutate the source buffer.

When To Use PNG Cloner

Use it to get a clean, independent working copy of an image before running a chain of other edits, or to quickly re-export a PNG through the browser's own encoder.

It's also a useful first step when you want to strip any non-pixel metadata baked into the original file.

Often used alongside PNG Duplicator and PNG Dimensions Finder.

Features

Advantages

Runs entirely client-side; the uploaded image is never sent to a server.
Produces a byte-for-byte accurate copy of the pixel content with zero quality loss.
Extremely fast, with no per-pixel computation beyond the copy itself.

Limitations

It doesn't preserve non-pixel PNG metadata from the original file (like text chunks or color profiles), since the output is a fresh, browser-encoded PNG.
Since it makes no visual change, this tool is only useful as a data-hygiene or workflow step, not as an editing tool on its own.

Examples

Create a safe working copy before editing

Input

A 500x500 PNG

Output

An identical 500x500 PNG, independently encoded

The output is pixel-identical to the input, ready to be edited elsewhere without risk to the original file.

Strip incidental file metadata

Input

A PNG exported from image-editing software with extra metadata chunks

Output

A clean PNG with just the pixel content, re-encoded fresh

Re-encoding through canvas naturally drops any metadata chunks that aren't pixel data.

Best Practices & Notes

Best Practices

Use this as the first step in a chain of edits if you want to be certain you always have an unmodified copy of the original pixels to fall back to.
Don't rely on this tool to preserve EXIF or color-profile metadata — if that matters, keep the original file separately.

Developer Notes

clonePng is a deliberately trivial pure lib function operating on a plain Uint8ClampedArray PixelBuffer: after validating the input, it calls the shared clonePixelBuffer helper to allocate a fresh, independent copy — no DOM access until the component paints the result for preview/download.

PNG Cloner Use Cases

Getting a safe, independent working copy of an image before a chain of edits
Re-exporting a PNG through the browser's own encoder
Stripping incidental non-pixel metadata from an exported PNG

Common Mistakes

Expecting the clone to preserve file metadata like EXIF data or embedded color profiles — only pixel content survives the round-trip.
Using this tool expecting a visual change; it's intentionally a no-op on the image content itself.

Tips

Use the dimensions finder tool afterward to double-check the clone's dimensions match what you expect.
If you need multiple copies tiled together rather than just one, use the duplicator tool instead.

PNG Cloner