Smaller files · no third-party uploads

Compress images online,
same great quality

Reduce image size for faster websites and easier sharing. Compress JPG and PNG, WebP and AVIF for free, with a difference you can hardly see.

No web usage-count limit; up to 20 images per batch. Defaults: 25 MB per image and 4 hours of result availability from submission. Current settings may differ.

Drop your images here

or click to choose files · PNG, JPEG, WebP, AVIF

Choose images

Defaults: up to 20 images per batch, 25 MB each. Current settings may differ.

Balanced size and speed — recommended

Beach photo used in the Bitinz before-and-after image comparison
Original · 278 KBBitinz · 94.1 KB
278 KB94.1 KB-66%

Drag the divider: the same photo, compressed at the balanced level

4
formats, one place
−66%
for the photo above
0
third-party uploads
Loading…
Site totals

Images compressed

·

— saved so far

The lighter side

Why reduce image size?

A little less weight in every image means a little less waiting on websites, in messages and at work.

Smaller images, faster websites

Images often account for a lot of page weight. Smaller files can help the first screen appear sooner, with less waiting for visitors.

Support better search performance

Page loading experience is one consideration in search rankings. Lighter images can improve that experience and give your content a better foundation for search.

Less data and storage

The same images, with fewer bytes. That can mean less CDN bandwidth, less storage and less mobile data used by your visitors.

Easier uploads and sharing

Lighter files take less time to upload, email and share, and are more likely to fit within attachment limits.

  • PNG
  • JPEG
  • WebP
  • AVIF

JPG to WebP PNG to WebP

Keep the look

Compress photos, keep the look

A photo compressor should make files lighter while keeping the details you care about. Use the real comparison above to judge the result for yourself.

  1. The familiar picture

    For everyday viewing, the difference is usually hard to see.

  2. Keep format, keep files small

    With “Keep format”, the result is never larger than the original. WebP conversion can be larger; we show the actual size.

  3. Four formats, one place

    Upload the image formats you use every day, with fewer tools to switch between and fewer interruptions.

A closer view of the beach and surf
Original 278 KB
A closer view of the beach and surf
Bitinz 94.1 KB
Privacy

Online image compression, less worry

Your images stay away from third parties, with downloads and cleanup taken care of. Focus on your content, with less tidying up afterwards.

  • No third-party uploads

    Your uploaded images are never sent to any third-party service.

  • Just open and start

    Need to handle a few images? Open the website and get going, without registering.

  • Simple downloads

    Save images individually or collect the results you need in a ZIP.

  • Automatic cleanup

    Results are available for 4 hours from submission. Downloads then expire and files are cleaned up automatically. When keeping the original format, a file that cannot be made smaller is returned as it is. This is the default retention period; current settings may differ.

Part of your day

Who is it for?

From launching a page to sending work to a client, lighter images mean less waiting.

Websites and online stores

Product shots and pages show up faster, visitors wait less, and launching new items gets easier.

  • Batch-process hero shots, long detail images and campaign banners
  • Pages open faster, so visitors browse a few more items
  • Bandwidth and storage costs drop along with the bytes

Designers and photographers

Lighter portfolios and previews are easier to send to clients, while the detail and look you care about stay.

  • Proofs and previews send faster and stop hitting attachment limits
  • Detail and colour are kept as far as possible — share proofs first, deliver originals later
  • Online portfolios load faster, so the first impression doesn't wait

Content teams and bloggers

Shrink images before publishing so articles load faster and uploading assets again and again takes less time.

  • Screenshots, illustrations and cover images slimmed before they go live
  • Articles open faster, so readers are more likely to finish
  • Up to 20 images at a time — one pass covers a whole article

Developers

Hook the API into uploads, builds or publishing so repetitive compression runs in your workflow instead of by hand.

  • Submit an image, then download the result; queued jobs can be polled
  • Fits CI builds, CMS uploads or image-host post-processing
  • Every account has a free monthly quota, with usage visible in the dashboard
Explore the developer API
Developers

Bring compression into your workflow

Call /api/v1/shrink with an API key to compress images automatically in builds, uploads or your CMS. Every account includes a free monthly quota.

curl --user api:YOUR_KEY \
  --data-binary @photo.png \
  https://bitinz.com/api/v1/shrink
Read the API docs
How it works

How to compress an image online

  1. Choose your images

    Drop your JPG, PNG, WebP or AVIF files, up to 20 at a time.

  2. Reduce file size

    Choose Fast, Balanced or Best and wait a moment for your images to compress.

  3. Download and share

    Save the smaller images one by one or all at once as a ZIP.

FAQ

Image compression questions

The things people ask most: quality, retention, limits and cost.

Still curious? Contact us
  • For most images, the difference is hardly noticeable in everyday viewing. Try the comparison slider above, then check your downloaded results for the way you plan to use them.