JPEG Artifact Generator

Add real JPEG compression artifacts to any picture. Lower the quality, re-save it again and again, and watch blocks, smudges, and color bleed creep across your image. Free, no signup, no watermark, and nothing leaves your browser.

Drop an image here

Or click to browse · Ctrl/Cmd + V to paste

JPG, PNG, WEBP · Up to 10 MB · Paste with Ctrl+V / ⌘V

No photo? Try this one

Your photos stay on your device. Always.

OriginalJPEG artifacts

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Real JPEG encoding. Every block is in your download.Slide to compare

Presets

JPEG quality 8Re-saves 1 Color bleed Extra chroma subsamplingExport as

Preparing your sample…

Color bleed adds 2×2 chroma averaging before encoding; your browser may also subsample JPEG color when the switch is off. PNG and WebP keep the JPEG artifacts and source alpha; JPG uses white behind transparency.

Large images use a working copy up to 1600 px / 2 MP. Restore original restores the untouched original. Processing stays on your device.

Free · No signup · No watermark · Stays in your browser

How to Add JPEG Artifacts to an Image

Upload your image.

Drop in a JPG, PNG, or WebP, or paste it with Ctrl+V.

Pick a preset or set the quality.

Lower quality means bigger, more visible artifacts.

Re-save it if you want more damage.

Raise Re-saves to stack compression on compression.

Zoom in and download.

Check the blocks at 400%, then save as JPG, PNG, or WebP.

Add Real JPEG Compression Artifacts, Not a Filter

The artifacts here are not painted on top of your picture. The tool actually encodes your image as a JPEG at the quality you choose, so the blocks, blur, and color shifts are the same ones a real low quality JPEG would have. Drop the quality slider to 5 and you will see the classic 8×8 grid appear on flat skies and smooth skin.

Compress My Image

Sample portrait with real low-quality JPEG compression

Re-Save an Image 100 Times

One heavy save makes blocks. Many saves make a mess. The Re-saves slider runs your image through the encoder again and again, with a tiny shift in size and position each time, so the damage keeps stacking instead of settling. Stop at 10 for a worn look or go to 100 for something that looks like it has been passed around for a decade.

Re-Save It 100 Times

Make Colors Bleed Past Their Edges

JPEG stores color at a lower detail than brightness, which is why red text on a blue background turns into a fuzzy, smeared halo. Turn on Color bleed to push that effect further. It works best on bright logos, colored text, and saturated cartoons.

Turn On Color Bleed

Saturated test chart with compressed color edges

Zoom In to See Every Block

Artifacts are easy to miss at normal size. The 400% zoom lets you look at the edges and flat areas up close, so you can see exactly where the blocks, ringing, and smudges land before you download.

Zoom In

What Are JPEG Artifacts?

JPEG artifacts are the visible flaws left behind when a picture is saved as a JPEG with too much compression. To make the file small, JPEG splits the image into 8×8 pixel blocks and throws away fine detail in each one. At low quality, those blocks start to show as a grid. Sharp edges pick up a fuzzy ring of speckles, often called mosquito noise. Smooth gradients break into bands, and strong colors smear into their neighbors. The more often an image is re-saved as a JPEG, the worse these flaws usually get.

Four magnified original and compressed comparisons labeled blocking, mosquito noise, banding, and color bleed — Illustrative test chart encoded as JPEG at quality 3. Each labeled comparison shows the original on the left and the compressed result on the right, enlarged with no smoothing. Patterns vary by image and browser encoder.

When to Use a JPEG Artifact Generator

Make a Meme Look Properly Reposted

A meme that looks too clean feels fresh off a template site. A few rounds of heavy JPEG makes it look like it has been shared in every group chat already.

Show What Compression Does in a Class or Article

Teachers, designers, and writers explaining image compression need a clear before and after. Generate the same photo at quality 90, 40, and 5 and put them side by side.

Test a JPEG Artifact Remover

If you are building or comparing tools that clean up compressed images, you need test images with known damage. Set the exact quality and number of re-saves so every test starts the same way.

Add a Glitchy, Low-Fi Texture to Art

Artists use heavy compression as a texture on purpose. Blocks and banding give digital art a broken, lo-fi feel that a regular filter cannot fake.

Why Use This JPEG Artifacts Tool

Free JPEG Artifacts, No Limit

Compress and re-save as many images as you like, free.

No Account Before the First Block

Open the page and start crushing images. Nothing to sign up for.

No Watermark on the Compressed Image

Your artifact-filled download is just your image, with no logo on top.

Your Image Is Compressed in Your Browser

The JPEG encoding happens on your own device. Nothing gets uploaded.

Real JPEG Encoding, Not a Fake Overlay

Every block comes from actually saving your picture as a JPEG.

File Size Shown After Every Change

See how small the JPEG gets as the quality drops.

JPEG Artifacts FAQ

Can you remove JPEG artifacts?

Only partly. AI artifact removers can smooth blocks and rebuild some edges, but they guess at the missing detail. The best fix is to export again from the original, uncompressed file at a higher quality.

Why do JPEG artifacts look like squares?

JPEG compresses an image in separate 8×8 pixel blocks. At low quality, each block loses most of its detail, so the edges between blocks no longer line up and you see a grid.

Does saving a JPEG again make it worse?

Usually, but less than people expect. Saving again at the same quality changes very little after the first few rounds. Editing, resizing, or saving at a different quality between saves is what makes the damage keep building.

Do PNG files get JPEG artifacts?

No. PNG is lossless, so saving as PNG does not add artifacts. A PNG made from a JPEG will keep any artifacts that were already there, which is why your result still shows the blocks when you download it as PNG.

What JPEG quality setting shows the most artifacts?

Quality settings below about 20 show obvious blocks on most photos. Below 10, flat areas like skies turn into a clear grid.

What image formats can I upload?

You can upload JPG, PNG, and WebP, and download as JPG, PNG, or WebP.

What if I want a blurry, pixelated, all-around low quality look?

Use the low quality image maker instead. It mixes JPEG damage with blur, pixels, and noise for a fully worn-out picture.

Add JPEG Artifacts to Your Image Now

Upload a picture, drop the quality, and re-save it until it looks as rough as you want. No account, no watermark, no upload.

Start Compressing