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Free Tools Galaxy
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100% free · no signupRuns in your browser

Pixelate Image

Apply a pixelation/mosaic effect to any image with adjustable block size.

Best for: Use it to hide faces, licence plates, account numbers or names before sharing a screenshot or photo.

Complete guide

Input

100% private — your file is processed in your browser and never uploaded.

How it's calculated & sources
The Pixelate Image uses the standard method for this calculation. It runs entirely in your browser, so your inputs are never uploaded. Last reviewed June 2026.

Free & no sign-up · runs entirely in your browser. Results are estimates for general information, not professional advice — verify important decisions with a qualified expert. Last reviewed June 2026.

Continue your journey

Where people usually head next.

🎨
Color Picker
Pick colors and get HEX, RGB and HSL values.
🗜️
Image Compressor
Reduce JPEG file size by re-encoding at chosen quality — 100% in-browser.
📐
Image Resizer
Resize images to any width/height with optional aspect ratio lock.
🔄
Image Converter
Convert images between PNG, JPEG and WebP in your browser.

Complete guide

Quick answers

Short, sourced answers to the questions people (and AI assistants) ask most.

What is Pixelate Image?
Pixelate Image replaces detail with large blocks - the classic way to censor faces, plates or sensitive text.
Why does Pixelate Image matter?
The pixelated area is unreadable. Unlike blur, blocky pixelation is generally harder to reverse, but neither is a guarantee against determined recovery.
How is Pixelate Image calculated?
The picture (or a region) is downsampled and scaled back up so each block averages its area, on a canvas in your browser.
What are common pixelate image mistakes?
Pixelating too lightly, leaving text still legible.
When should you use the Pixelate Image?
Use it to hide faces, licence plates, account numbers or names before sharing a screenshot or photo.

What is the Pixelate Image?

Pixelate Image replaces detail with large blocks - the classic way to censor faces, plates or sensitive text.

How the Pixelate Image works

The picture (or a region) is downsampled and scaled back up so each block averages its area, on a canvas in your browser.

Common mistakes to avoid

  • Pixelating too lightly, leaving text still legible.
  • Assuming any obfuscation is unbreakable - crop out truly sensitive data instead.
  • Missing part of the sensitive area.

Keywords: pixelate, mosaic, censor.

Runs entirely in your browser. Your image is not uploaded.

Reviewed by the Free Tools Galaxy editorial team · Updated June 2026 · Calculated privately in your browser.

Frequently asked questions

Is the Pixelate Image free to use?+

Yes. Every tool on Free Tools Galaxy is 100% free, runs in your browser and requires no signup.

How accurate is the Pixelate Image?+

Pixelate Image uses the standard pixelate image formula in double-precision arithmetic, so the same inputs always produce the same result and you can verify any figure by hand. It is an educational estimate — real-world outcomes depend on your actual rates, rules and assumptions.

Do you store my inputs?+

No. The Pixelate Image runs entirely in your browser. Nothing is uploaded or saved to a server.

Can I use the Pixelate Image on mobile?+

Yes — the interface is fully responsive and works on phones, tablets and desktops.

What are common mistakes to avoid?+

The most frequent mistake is mixing units. Double-check your inputs use a single, consistent unit before clicking Calculate.

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Related searches: blur image, image filter applier, image cropper

Smart Autopilot

AI-style routing · 100% on-device

Based on this tool, your recent activity and how others chain tools together.

Likely next step

🎨Color PickerTop match🗜️Image CompressorReduce JPEG file size by re-encoding at chosen quality — 100% in-browser.📐Image ResizerResize images to any width/height with optional aspect ratio lock.🔄Image ConverterConvert images between PNG, JPEG and WebP in your browser.✂️Image CropperCrop any image to a custom rectangle entirely in your browser.🔃Image RotatorRotate any image by any angle and download losslessly.

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Next best tool

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Apply a Gaussian blur to any image with adjustable radius.

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Share & publish

Share & challenge

Twitter Facebook LinkedIn WhatsApp
Share-to-grow kit (Reddit, LinkedIn, Medium)
Reddit post
Title: I built/used this free pixelate image — instant, no signup

Body: Apply a pixelation/mosaic effect to any image with adjustable block size. Try it: https://freetoolsgalaxy.com/tools/pixelate-image
LinkedIn post
Pixelate Image on Free Tools Galaxy — Apply a pixelation/mosaic effect to any image with adjustable block size. https://freetoolsgalaxy.com/tools/pixelate-image
Medium intro
# Pixelate Image — the free tool I keep coming back to

Apply a pixelation/mosaic effect to any image with adjustable block size.

Try it: https://freetoolsgalaxy.com/tools/pixelate-image
Quora answer
The fastest way is to use a free in-browser pixelate image: https://freetoolsgalaxy.com/tools/pixelate-image. Apply a pixelation/mosaic effect to any image with adjustable block size.

Embed this tool anywhere

Free embed code for blogs, docs and dashboards. Every embed sends a backlink home — helping you and the galaxy grow together.

HTML iframe
Drop into any site — auto-resizes to its content height, theme-aware.
<iframe src="https://freetoolsgalaxy.com/tools/pixelate-image?embed=1" title="Pixelate Image" loading="lazy"
  style="width:100%;height:600px;border:0;border-radius:16px;background:#0b1020"
  allow="clipboard-write"></iframe>
<script>window.addEventListener("message",function(e){if(e.data&&e.data.type==="ftg-embed-height"){document.querySelectorAll("iframe").forEach(function(f){if(f.contentWindow===e.source){f.style.height=e.data.height+"px";}});}});</script>
<p><a href="https://freetoolsgalaxy.com/tools/pixelate-image" target="_blank" rel="noopener">Powered by Pixelate Image on Free Tools Galaxy</a></p>
Responsive wrapper
Aspect-locked container — good for blog post bodies.
<div style="position:relative;padding-bottom:75%;height:0;overflow:hidden;border-radius:16px">
  <iframe src="https://freetoolsgalaxy.com/tools/pixelate-image?embed=1" title="Pixelate Image" loading="lazy"
    style="position:absolute;inset:0;width:100%;height:100%;border:0" allow="clipboard-write"></iframe>
</div>
WordPress / Markdown
Paste in a custom-HTML block or markdown file.
[Pixelate Image — free online tool](https://freetoolsgalaxy.com/tools/pixelate-image)

<iframe src="https://freetoolsgalaxy.com/tools/pixelate-image?embed=1" width="100%" height="600" frameborder="0"></iframe>
Text link-back
Minimal credit link — best for sidebars and footers.
<a href="https://freetoolsgalaxy.com/tools/pixelate-image" target="_blank" rel="noopener">Try the free Pixelate Image</a>

Share-to-Grow Kit

Pre-written, ready-to-paste posts for every major channel. Help others discover this tool — and earn backlinks.

Title
I built a free fraction calculator that works instantly in the browser — no signup, no ads in your face
Body
Hey r/[subreddit],

I kept needing a quick fraction calculator and most options online were slow or behind paywalls, so I built one that:

• Runs 100% in your browser (your data never leaves your device)
• No signup, no email wall, no popups
• Loads in under a second on mobile

It covers the standard fraction use cases (fraction, math) and links out to the formula + worked examples if you want to learn the math.

Link: https://freetoolsgalaxy.com/tools/fraction-calculator

Happy to take feedback — what's missing?
Post to a relevant subreddit (e.g. r/InternetIsBeautiful, r/webdev, r/productivity). Avoid spammy subs.
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