Five concrete examples of the PNG Optimizer in real use. Each one shows the situation, what you put in and what comes out, so you can copy the structure, swap in your details and adapt it this week.
Example 1: Optimising assets where lossy edits are unacceptable
The task: Optimising assets where lossy edits are unacceptable. You start from a PNG file from any source: export, screenshot or download.. The tool returns the identical image, pixel for pixel, in a smaller file thanks to smarter compression., giving you weight savings with zero visual compromise - the safest optimisation available. you can edit rather than a blank page.
Make it yours: add one detail the tool cannot know - a real number, a name, a constraint - then read the result once end to end before you keep it.
Example 2: Trimming weight from UI screenshots with fine text
The task: Trimming weight from UI screenshots with fine text. You start from a PNG file from any source: export, screenshot or download.. The tool returns the identical image, pixel for pixel, in a smaller file thanks to smarter compression., giving you weight savings with zero visual compromise - the safest optimisation available. you can edit rather than a blank page.
Make it yours: add one detail the tool cannot know - a real number, a name, a constraint - then read the result once end to end before you keep it.
Example 3: Cleaning up exports from design tools
The task: Cleaning up exports from design tools. You start from a PNG file from any source: export, screenshot or download.. The tool returns the identical image, pixel for pixel, in a smaller file thanks to smarter compression., giving you weight savings with zero visual compromise - the safest optimisation available. you can edit rather than a blank page.
Make it yours: add one detail the tool cannot know - a real number, a name, a constraint - then read the result once end to end before you keep it.
Example 4: Reducing size of pixel art and icons
The task: Reducing size of pixel art and icons. You start from a PNG file from any source: export, screenshot or download.. The tool returns the identical image, pixel for pixel, in a smaller file thanks to smarter compression., giving you weight savings with zero visual compromise - the safest optimisation available. you can edit rather than a blank page.
Make it yours: add one detail the tool cannot know - a real number, a name, a constraint - then read the result once end to end before you keep it.
Example 5: Running a final lossless pass before deployment
The task: Running a final lossless pass before deployment. You start from a PNG file from any source: export, screenshot or download.. The tool returns the identical image, pixel for pixel, in a smaller file thanks to smarter compression., giving you weight savings with zero visual compromise - the safest optimisation available. you can edit rather than a blank page.
Make it yours: add one detail the tool cannot know - a real number, a name, a constraint - then read the result once end to end before you keep it.
A Full Worked Example
Input: ui-export.png, 3.2 MB
ui-export.png at 1.9 MB - identical pixels, 40 percent lighter.
The pattern behind every example above: context and constraints go in, structure comes out, and your edit makes it true.
How to Build Your Own Examples
- Take a task already on your calendar for this week.
- Write the brief in two sentences: the job and the audience.
- Generate, compare against the version you would have written manually.
- Save the prompt alongside the result so the second run takes seconds.
Getting More From Each Example
Most people stop at the first result. Generate a second version with one changed variable - length, tone or angle - and compare. The better version usually appears on the second run, not the first.
Frequently Asked Questions
Is the output really identical?
Yes - lossless optimisation changes encoding only. Every pixel matches the original exactly.
How much weight can I save?
Typically 10-40 percent losslessly; far more when you allow lossy compression or resizing.
What is the difference from the PNG compressor?
This tool guarantees no quality change; the compressor can go further by allowing controlled quality loss.
Are my files uploaded?
No - optimisation runs entirely in your browser.
Related Guides
- PNG Optimizer - free online tool
- How to Use PNG Optimizer
- What Is a PNG Optimizer and How Does It Work?
- PNG Optimizer Not Working? How to Fix It
- PNG Optimizer for Designers and Web Developers
- Best PNG Optimizer Alternatives Worth Trying
- PNG Optimizer Tips and Best Practices
- Is PNG Optimizer Safe? Free vs Paid
- More PNG tools and guides