Before you publish or print, know what you are actually working with. The analyzer reports resolution, dimensions, weight and format for any image — in bulk.

Most image problems are invisible until publication: the logo too small for print, the banner under the marketplace’s minimum, the “high-res” photo that is anything but. The analyzer surfaces all of it upfront.

Decisions get cheaper when they are informed. Knowing a file is 72 DPI and 600 pixels wide before sending it to print saves a re-shoot, not just a re-export.

What is the Image Quality Analyzer tool?

The Image Quality Analyzer tool is a free, browser-based utility that lets you inspect image quality before publishing or printing — one file or a hundred at a time. There is nothing to install, no account to create, and no watermark stamped on your results. It runs on any device with a modern browser: Windows, macOS, Linux, Android or iPhone.

Unlike heavyweight creative suites, this tool does exactly one job and does it well. The interface follows a simple three-step pattern that stays consistent across the entire Pixly toolbox, so once you have used one tool you already know how to use them all: drop your files, adjust the options you need, and download the results.

How to check image quality online — step by step

Open the tool. Navigate to the Image Quality Analyzer page — it works on mobile and desktop alike.
Add your images. Drag & drop files onto the upload area, or tap Select images to browse. You can queue many files at once — the whole batch is processed in a single pass.
Adjust the options. Nothing to configure — drop images in and the analyzer reports the full technical profile of each file, including a flag on whether quality is web-ready.
Process. Hit the action button and let the pipeline run. Most batches finish in seconds; progress is shown per file.
Download. Grab files individually or download everything in one archive.

Why do this in the browser instead of desktop software?

Zero setup. No downloads, no licence keys, no updates — open a tab and work.
Batch-first design. Queueing a hundred files is as easy as queueing one — the pipeline processes the whole set in one pass.
Privacy by design. Uploaded files are deleted automatically after 24 hours, and processed output is yours alone.
Consistent results. The same engine and the same options run on every platform, so your output never depends on which machine you use.

Who uses Image Quality Analyzer?

Quality checks prevent problems for anyone who receives or sends images:

Print shops pre-flighting customer-supplied files
Marketplace sellers verifying listing images meet minimum resolution
Designers auditing client-supplied assets before layout work
Photographers checking which gallery exports are web-safe

Common mistakes to avoid

Confusing DPI with resolution — a 6000-pixel image at 72 DPI still prints beautifully at large sizes; DPI metadata alone does not decide quality.
Judging sharpness from a thumbnail preview — zoom to 100% before declaring an image blurry.
Analyzing after editing — inspect the source files first so you know what you are starting from.

Pro tips for better results

For print, look for roughly 300 pixels per inch at target size — a 6×4″ print wants about 1800×1200 pixels.
For the web, dimension targets beat DPI targets: match your theme’s container widths.
Run the analyzer on supplier-supplied images the moment they arrive — disputes are easier before deadline day.

Frequently asked questions

What resolution do I need for printing?

Around 300 pixels per inch at print size: an A4 page at full bleed wants ~3500×2500 pixels. Anything below 150 PPI will look soft in print.

Can it analyze many images at once?

Yes — drop a whole batch and each file gets its own report row, so pre-flighting a delivery takes minutes.

Is the tool really free?

Yes — image Quality Analyzer is completely free with no signup, no watermark and no daily cap. The Pixly toolbox is funded by unobtrusive ads, so the tools stay open to everyone.

Are my files safe?

Files are transferred over encrypted connections and deleted automatically after 24 hours. Nothing is shared with third parties, and no account or personal data is required to use the tool.

Final thoughts

The fastest way to understand how much time this saves is to try it once. Head to the Image Quality Analyzer tool and process your first batch now. If you work with images regularly, pair it with the Upscale Image tool to cover the whole workflow without ever leaving the browser.

How to Check Image Quality Online (Resolution, Sharpness & Size)