Compress images without losing quality
Shrink JPG, PNG, and WebP files to a fraction of their size — one image or many at a time. Files never leave your device.
Drop images here
or click to browse — one file or many
01Why compress here
Smaller files, same look.
Four reasons engineers, marketers, and shop owners keep this page open while they prep assets for the web.
- 01
Up to 90% smaller
Most photos shrink to a fraction of their original size with no visible quality loss — perfect for faster pages and lighter emails.
- 02
You control the quality
A single slider trades file size for fidelity. Crank it down for thumbnails, leave it high for hero images — you see the result instantly.
- 03
Three output formats
Save the compressed image as JPG, WebP, or PNG so it slots neatly into whatever site, doc, or app you are targeting.
- 04
No upload, no leakage
Compression happens in your browser. Private photos, draft brand work, and client material stay on your device the whole time.
02How it works
Three steps to a lighter image.
- Drop imagebanner.png4.8 MB
Step 1Drop your image
Drag in a JPG, PNG, or WebP up to 50 MB. The tool reads the dimensions and shows the original size next to the output.
- Quality40607085
Step 2Pick format & quality
Choose JPG, WebP, or PNG, then drag the quality slider. 70 is a sensible default — high enough to look untouched, low enough to save real bytes.
- 72% smallerbanner.webpWebP · 1.3 MB
Step 3Download the lighter file
Click Compress, eyeball the size comparison, and grab the result. Not small enough? Drop the quality and try again — re-runs are instant.
03Use cases
Where compression pays off.
Every byte saved is a tab loaded faster, an email that actually sends, a storefront that feels modern. Here is where it matters most.
Faster web pages
Slash hero and gallery image weight by 60–80% to improve LCP, Lighthouse scores, and bounce rate without touching CSS.
4.8 MB PNG → 580 KB WebPEmail-friendly attachments
Bring a photo under common 5 MB inbox limits in one pass — no awkward Dropbox links, no quality questions later.
12 MB JPG → 1.8 MB JPGLighter product galleries
Compress every catalog photo to a consistent target so storefronts feel snappy on mobile data without sacrificing detail.
WebP @ Q75 across catalogSmaller PDFs & docs
Pre-compress images before embedding them in PDFs, slide decks, and Word docs to keep file sizes shareable.
8 MB → 1.4 MB before embedSocial uploads that snap
Most platforms re-encode photos aggressively when you upload them. Compressing first means you control how the image looks, instead of leaving it to the platform.
JPG @ Q80, 1080 × 1080Cheaper cloud storage
Backed-up photo libraries cost less when each file is 70% smaller — same memory, fraction of the bill.
40 GB folder → 12 GB
04Picking a format
JPG & WebP vs PNG.
Lossy formats save dramatic file size on photos; PNG is lossless and best for art with transparency. Here is how they stack up.
| Attribute | JPG / WebP (lossy) | PNG (lossless) |
|---|---|---|
| Best at photographs | JPG / WebP (lossy)JPG / WebP: excellent | PNG (lossless)PNG: bloated for photos |
| Supports transparency | JPG / WebP (lossy)JPG: no · WebP: yes | PNG (lossless)PNG: yes |
| Typical compression ratio | JPG / WebP (lossy)JPG/WebP: 5–20× smaller | PNG (lossless)PNG: 1.5–3× smaller |
| Quality is configurable | JPG / WebP (lossy)JPG/WebP: yes (quality slider) | PNG (lossless)PNG: no (lossless only) |
| Browser support | JPG / WebP (lossy)JPG/WebP: universal | PNG (lossless)PNG: universal |
| Best use case | JPG / WebP (lossy)Photos, hero images, product shots | PNG (lossless)Logos, screenshots, art with transparency |
05Pro tips
Shrink smarter, not harder.
Small habits that pull extra bytes out without losing visible quality.
- 01
Start at quality 70
It is the sweet spot for JPG and WebP — visually identical to most viewers, often 60–80% smaller than the original.
- 02
Try WebP for the web
WebP gives 25–35% smaller files than JPG at the same visible quality. Every modern browser supports it.
- 03
Resize first, then compress
There is no point compressing a 5000px photo for a 1200px slot. Resize down first, then compress — the savings stack.
- 04
Compare side by side
The tool shows both files at once. Zoom into faces, text, and edges before downloading — those are where compression artifacts hide.
06Loved by
Engineers, designers, and marketers use it daily.
My hero PNGs were the entire reason Lighthouse complained. One pass through Wirelogs at WebP Q70 dropped the page weight by 4 MB. LCP fixed.
Inbox attachment limits used to kill me. Now I drop the photo in, hit 50% quality, send. Subscribers see the image, my emails actually arrive.
Client galleries on the web used to feel sluggish. Compressing every image to WebP cut load time in half with no visible difference. They cannot tell.
07Questions
Image compression, answered.
What people ask before compressing their first image. Anything else? hello@wirelogs.com.
01How does image compression work?
Lossy formats like JPG and WebP analyse each image and drop information your eye is unlikely to notice — fine color gradients, microscopic noise — so the file gets dramatically smaller. PNG uses a different, lossless approach: it never throws data away but the savings are smaller.
02Will my image lose quality?
Lossy formats trade some fidelity for file size, but at quality 70–80 most people cannot tell the difference. PNG is fully lossless — pixels are preserved exactly. If you are unsure, compare the before and after at 100% zoom.
03What quality setting should I pick?
Start at 70. It looks identical to the original for almost every photograph while saving 60–80% of the file size. Drop to 50 for thumbnails, push to 85 for hero images you want flawless.
04Which format should I choose?
WebP for the web (smallest at the same quality), JPG when you need universal compatibility with older tools, and PNG when transparency matters or you are compressing screenshots and line art.
05How big can my image be?
The compressor handles JPG, PNG, and WebP files up to 50 MB. If your source is larger, run it through the Wirelogs image resizer first to bring the pixel count down.
06Is the tool free?
Yes — every Wirelogs tool is free with no usage caps, no watermarks, no premium plan, and no sign-up. Compress as many images as you want.
07Do my files leave my device?
No. Compression runs entirely in the browser using the Canvas API. Wirelogs never receives your image — sensitive product photos, client galleries, and personal pictures stay private.
08Can I compress PNGs?
Yes, the tool re-encodes PNG with optimisations, but PNG is lossless so savings are modest — typically 5–30%. For dramatic shrinkage on photo-heavy PNGs, convert to WebP or JPG instead.
Ready when you are
Make that image web-ready.
Drop a JPG, PNG, or WebP into the tool above and pull 60–90% of the bytes out. Compare the result side by side before you download.
- ~70%typical savings
- 50 MBmax file size
- $0now and always