Read PNG Comment Block
Extract hidden system text logs embedded within the graphic file. Runs entirely in your browser, so your data never leaves your device.
Drop a file here, or click to browse
Files never leave your device
Output
The result appears here as you type.
How to use Read PNG Comment Block
- 1. Upload the PNG. Add the file you want to inspect for hidden text. The tool scans its chunk structure the moment it loads.
- 2. Let the tool find text chunks. It looks through the file's tEXt, iTXt and zTXt chunks, the standard PNG containers for embedded comments and metadata, and extracts any it finds.
- 3. Review the extracted text. The result lists each found chunk's keyword and value, such as Comment: Created with EditSafely, revealing whatever text was embedded when the file was created.
- 4. Copy the extracted comments. Copy any text you need for documentation, attribution checks or simply to confirm what metadata a given PNG is carrying.
When to use Read PNG Comment Block
Read PNG Comment Block extracts hidden text logs embedded within a graphic file's tEXt, iTXt and zTXt chunks. Reach for it whenever you need to see what metadata or comments a PNG is quietly carrying along with its pixels.
- Checking a downloaded image's origin. A PNG downloaded from an unfamiliar source may carry a Software or Comment chunk revealing which tool generated it, useful for verifying its provenance before reuse.
- Auditing files for embedded attribution. A stock image library embeds author or license text in a tEXt chunk on every export. Reading the comment block confirms attribution details are intact before publishing.
- Debugging a script that writes PNG metadata. A developer writing code that embeds custom text chunks into generated PNGs wants to confirm the chunk actually landed correctly in the output file.
Examples
Read embedded text chunks
Input
photo.png with a Comment chunk
Output
Comment: Created with EditSafely
About the Read PNG Comment Block tool
Read PNG Comment Block does its work locally, right in the browser. Extract hidden system text logs embedded within the graphic file. There is no upload step, no queue and no account, and your data never travels over the network.
It belongs to the PNG Tools collection on EditSafely, a set of 108 small, focused PNG utilities that share the same instant, private workspace.
There is nothing to configure. Provide the input and the result appears on its own. A worked example further down the page shows exactly what the tool produces for a real input.
Running locally also makes the tool fast and dependable: results appear as you type or drop a file, there is no server outage that can take it down mid-task, and confidential data can be processed without a second thought.
Frequently asked questions
Is Read PNG Comment Block free to use?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Are my files uploaded to a server?
Everything happens locally. Your browser downloads the tool's code once, then does all the processing itself; nothing you enter is transmitted, stored or logged. You can even go offline after the page loads and it will still work.
Which files does Read PNG Comment Block accept?
It accepts PNG images. There is no file size cap imposed by a server; very large files are limited only by your device's memory.
Do I need to sign up or install anything?
No. The tool works in any modern browser on desktop, tablet or phone. There is no account to create, no extension to add and no software to install.
How do I use the result?
The output panel has a one-click copy button, and you can keep refining the input while you work; the result updates in place as you type.