How to Compress an Image Without Losing Quality

Updated June 2026 · OurWings Guides

Short, honest answer: you can shrink a photo a lot without any visible quality loss — but not with literally zero data loss. Here's the difference, and exactly how to keep your images looking sharp while the file gets much smaller.

Lossless vs "visually lossless"

Truly lossless compression keeps 100% of the original data — but it only shrinks photos a little (often 5–20%). Lossy compression (JPEG, WebP) drops data the eye can't notice, which is how you get files 70–90% smaller. At a high quality setting the result is visually lossless: you genuinely can't see the difference, even though some data was removed.

So when people say "without losing quality," what they almost always want is without visible quality loss — and that's very achievable.

🖼️ QuickShrink — compress without visible quality loss → Use the “✨ Visually lossless” preset. Free, nothing uploaded, runs in your browser.

Three settings that keep quality

  1. Quality ~80–90%. This is the sweet spot for photos — invisible loss, big size savings. Below ~70% you may start to see artifacts in skies and smooth gradients.
  2. Use WebP. At the same visual quality, WebP is usually 25–35% smaller than JPEG. It's the best format for "keep the look, shrink the file."
  3. Resize to what you actually need. A 6000px photo shown at 1500px is carrying data you'll never see. Scaling it down to the size you'll display keeps it sharp while cutting the file dramatically.

Step by step

  1. Open QuickShrink and click the “✨ Visually lossless” preset (it sets ~90% quality and WebP).
  2. Drop in your image.
  3. If you also want it smaller, set a max width to the size you actually need.
  4. Download. Your original stays untouched on your device.
💡 When you can be truly lossless: for logos, screenshots and graphics with flat colours, PNG (or lossless WebP) keeps every pixel exactly. For photographs, “visually lossless” at ~85–90% is the realistic goal — and you won't see the difference.

Why do it in your browser?

Most "compress without losing quality" sites upload your photo to their server first. QuickShrink runs entirely in your browser using the Canvas API — your image is never uploaded and never leaves your device. It's also instant, with no sign-up or limits.

Frequently asked questions

Can you compress an image without losing any quality?

Truly lossless only shrinks a little. For a much smaller file, use a high lossy setting (80–90%) — the loss is invisible.

What setting keeps it looking the same?

~80–90% quality in JPEG or WebP is visually lossless for most photos.

Is WebP better for keeping quality?

Yes — WebP is ~25–35% smaller than JPEG at the same visual quality.

Does resizing reduce quality?

Only data you weren't displaying is removed, so the image stays sharp at its actual size.

Try it now → QuickShrink “✨ Visually lossless” preset · free · private · in your browser.

Related: compress without uploading · compress to 100 KB · more tools: PDF · QR · Reader.