While you're here, try these other free image and PDF tools from CleanCutBG.
🗜️ Free Online Image Compressor
CleanCutBG's image compressor shrinks JPG, PNG, and WebP files so pages load faster,
emails send through, and cloud storage bills stay small, without visibly hurting quality.
The whole pipeline runs on our server and streams the result back to your browser —
no software to install, no account to create. Process a single image or a batch of five,
as many times as you need.
Under the hood we use tuned encoders that let you trade a tiny amount of visual quality
for a huge cut in file size. A 4 MB JPEG straight out of a phone camera commonly drops
to 300–600 KB at quality 80 with no noticeable difference on screen. That's the
same technique the big CDNs use, we just expose it as a slider you control.
✅ Common reasons to compress an image
Speed up website page loads by shrinking hero images, product photos, and blog images to Google Core Web Vitals–friendly sizes
Fit photos under email attachment limits (Gmail 25 MB, Outlook 20 MB, most corporate 10 MB)
Pass strict online form uploads (government portals, exam applications, KYC uploads that cap at 100 KB or 200 KB)
Compress product photos for Amazon, Shopify, eBay, Etsy, and Flipkart listings, most marketplaces prefer files under 2 MB
Save iCloud, Google Drive, and OneDrive storage without losing photos to auto-cleanup
Batch-compress up to 5 images at once and download them individually or as a single ZIP
Compare original size vs compressed size and see the exact percentage you saved on every image
📋 How to Compress an Image Online
Bring up to 5 images (20 MB each) into the tool — toss them onto the drop zone, hit the Browse button to pick from a folder, or press Ctrl+V to paste a screenshot straight from your clipboard
Set the Quality slider between 10 and 100, lower numbers mean smaller files and more compression artifacts
Pick an output format: JPG gives the smallest file for photos, WebP is best for the modern web, PNG preserves transparency
Hit Compress Image — the server compresses each image in the batch and returns the results within seconds
Each result card shows the original size, the compressed size, and the percentage you saved
Save each compressed image on its own, or hit Download All (ZIP) to package the entire batch into a single archive
🎚️ Which Quality Setting Should You Pick?
The quality slider is the single most important control. Higher numbers keep more of the
original detail but produce bigger files. Lower numbers shrink the file aggressively at
the cost of visible artifacts, soft edges, blocky skies, and colour banding. Here's what
each range is actually good for:
Quality 90–100: Near-lossless. Use for print, archival, or portfolios where every pixel matters. File size reduction is modest (10–30%).
Quality 80–89: The sweet spot for the web. Files shrink 50–75% with no visible loss on typical screens. This is what we recommend for 95% of use cases.
Quality 60–79: Aggressive web compression. Good for thumbnails, background images, and blog images. Slight softness may show on large screens.
Quality 40–59: Heavy compression. Only use when the file size limit is strict (email caps, form uploads). Expect noticeable artifacts in skies and skin tones.
Quality 10–39: Emergency only. The image will look pixelated but will squeeze into 20 KB or less. Use for placeholder images or when you truly must beat a hard limit.
🖼️ JPG vs PNG vs WebP: Which Format to Compress To
Compression works differently for each format. Picking the right output format often
saves more space than tweaking the quality slider.
JPG (JPEG): Uses lossy compression that's very efficient for photos with smooth gradients, landscapes, portraits, product shots. Does not support transparency. Almost always the smallest output for camera photos.
PNG: Lossless compression. File size can't drop below what the raw pixels demand, so PNGs stay large. Only choose PNG when you need transparency (logos, cutouts, UI assets) or perfectly sharp text.
WebP: Modern Google format that compresses 25–35% smaller than JPG at the same visual quality, and also supports transparency like PNG. Perfect for the web, supported by every modern browser (Chrome, Safari, Firefox, Edge) since 2020.
Rule of thumb: photo without transparency → JPG or WebP; anything with transparent
areas → WebP first, PNG as fallback; screenshots of text or UI → PNG.
💡 Tips to Squeeze the Most Out of Compression
Resize before you compress. A 6000×4000 px photo displayed at 800 px wide is wasting 95% of its pixels, resize with our Resize tool first, then compress.
Convert HEIC/HEIF (iPhone photos) to JPG or WebP with our Convert tool. HEIC is already compressed but universally supported formats give you more control.
For photos with lots of noise or grain, drop the quality to 70, the noise hides most of the compression artifacts anyway.
If you're compressing to hit an exact file size limit (say, 100 KB for a passport application), start at quality 80 and step down by 10 until you're under the limit.
Avoid double-compressing. Every time you re-encode a JPG, you lose more data. Keep an untouched original and re-export from that.
For screenshots and diagrams with sharp text, use PNG or high-quality WebP. JPG will smear the edges.
❓ Image Compression — Quick Answers
How much can compression actually reduce my image size?
For a typical smartphone JPG at quality 80, expect 50–80% smaller files. PNGs that convert to WebP often shrink by 60–90%. Real savings depend on the image, a photo of a clear blue sky compresses far better than a photo of dense foliage.
Will compressing hurt my photo's quality?
At quality 80 or above, the difference is invisible to the human eye on any normal screen. Below 60, you'll start seeing soft edges, blocky skies, and banding in gradients, especially on large monitors.
Is CleanCutBG's image compressor free?
Yes. Every feature — batch mode, quality slider, format choice — is free with no registration. Ads on the site cover the hosting bill.
Are my images uploaded to a server?
Yes, the file is sent to our server for encoding because that's where the tuned compression libraries live. It stays in RAM during the encode and is flushed the instant the compressed result is returned. We don't persist filenames, don't write images to storage, and don't retain any metadata from your uploads.
Can I compress PNG images without losing transparency?
Yes. Keep the output format as PNG (or switch to WebP for smaller files) and the transparent areas will be preserved. Switching to JPG will fill transparent areas with white.
What's the maximum file size I can upload?
20 MB per image, up to 5 images per batch. If your photo is larger, resize it first with our Resize tool.
Does it work on iPhone, Android, and tablets?
Yes. The compression engine runs on our server, not your device, so even budget phones can compress large images. Open the page in any mobile browser and upload.