RatioReady
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PNG, JPG, WebP — convert in your browser

Drop an image, pick a target format, download. Quality control for JPG and WebP. Transparency-aware. Zero upload, zero signup.

Three small printed photos showing the same image in slightly different finishes (matte, glossy, satin) on a wooden desk with file folders
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or drag and drop. JPG, PNG, WebP up to 30 MB. Runs in your browser.

Comparison of JPG, PNG, and WebP showing JPG is best for photos with smaller file size, PNG is best for graphics with transparency, WebP is best for web with smallest file size
When to reach for each format — the right one depends on what's in the image and where it's going.

Format Comparison — Quick Reference

Format Compression Transparency Best For
JPGLossyNoPhotos, Etsy listings, social media
PNGLosslessYes (alpha)Graphics, logos, clipart, transparent overlays
WebPLossy or losslessYes (alpha)Web display, blogs, modern platforms

When you’d use this converter

Format conversion is one of the most common single-image tasks for any digital seller. These are the four scenarios where I reach for it most:

  1. Saving an Etsy mockup as JPG. Etsy listing photos work best as JPG. If your mockup software exports PNG by default, run it through the converter to get a JPG before uploading — smaller file, faster page loads, no quality difference for photographs.
  2. Converting a stock photo from JPG to PNG for transparent overlays. If you bought a stock JPG and want to use it as a layered element in a design (for example, a botanical illustration with a transparent background), you need PNG output. Drop the JPG in, set target to PNG, then remove the background in your design tool.
  3. Converting WebP downloads to JPG. Many sites now serve WebP by default. Etsy doesn't accept WebP for listing photos, so if you saved a reference image from a competitor or a blog and want to use it (within fair use), you need to convert WebP → JPG first.
  4. Shrinking an oversized PNG before uploading. A 12 MB PNG can become a 2 MB JPG at 90% quality with virtually no visible difference, especially for photos. If you're hitting Etsy's 10 MB photo limit or a marketplace upload limit, the JPG conversion is usually the simplest fix.

Common format conversion mistakes

Five mistakes that turn a simple format swap into a bad customer experience.

1. Converting transparent PNG to JPG without realizing

JPG cannot store transparency. If your PNG has transparent regions (logos, clipart, isolated subjects), converting to JPG fills those regions with white — which is jarring if the design assumed a transparent background. Always check whether your PNG has alpha before converting to JPG.

2. Converting graphics to JPG and getting visible artifacts

JPG compression introduces ringing and color blocks around sharp edges (text, logo lines, line art). For graphics, stay with PNG even if the file is larger. The rule of thumb: photographs → JPG, anything with sharp text or geometry → PNG.

3. Using JPG quality below 80%

Below 80% quality, JPG artifacts become visible even on photographs. Below 60%, the image looks obviously degraded. Default to 90-95% for any image a buyer will see; only go below if file size is the absolute priority and quality is secondary.

4. Converting PNG to JPG and back, expecting to recover quality

Once you've converted PNG → JPG, the lossy compression has happened — converting that JPG back to PNG doesn't recover the lost detail. Always keep your original PNG source if you might need lossless quality later.

5. Using WebP for Etsy or any marketplace

WebP is great for modern websites but rejected or auto-converted by most ecommerce platforms. Etsy, Amazon, eBay, and most others either reject WebP or convert to JPG with worse quality than if you'd done it yourself. Convert to JPG before uploading.

Need to convert + DPI-stamp + crop a whole batch? Ratio Ready handles batch format conversion alongside DPI stamping, AI upscaling, and 5-ratio cropping — one upload, complete output.

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Format converter questions

Related tools and guides

Convert + DPI-stamp + crop in one upload

Ratio Ready handles all of it for batches up to 50 images. 50 Creative Credits free on signup.