Making an image smaller in file size is now effortless. Drop your JPG, PNG or GIF files below and compress them up to 90% smaller – no signup, no watermark, no software installation.
Drag & drop your images here
or click to browse · JPG, JPEG, PNG & GIF · Up to 25 MB each · Max 10 files
No technical skills needed. Compress any image in less than a minute.
Drag & drop up to 10 photos at once, or click the upload box to browse your files. JPG, PNG and GIF are all supported.
Keep the recommended quality or adjust the slider. Optionally resize large images to a maximum width or height.
Hit “Compress Now” and watch your file shrink instantly. Download each optimized image with one click.
A fast, private and reliable image compressor built for everyday needs.
Smart compression strips unnecessary data so photos, screenshots and graphics become dramatically lighter.
Files are auto-deleted from our server within an hour. Nothing is stored, shared or used to train anything.
Compression takes seconds, even for large files. No queues, no waiting rooms, no email links.
Use it on Windows, Mac, Android or iPhone. All you need is a browser – no app download required.
Compress up to 10 images in one go. Perfect for websites, portfolios and bulk uploads.
No hidden charges, no premium tiers, no watermarks. Every feature is free with no limits on the number of files.
Large image files slow down websites, fill up email attachments and often fail to upload on forms that enforce strict limits. Making an image smaller in file size solves all of these problems at once. Sizeinkb uses smart re-encoding: your photo is analyzed, redundant pixel data is removed and the file is rebuilt with a leaner structure – while keeping the pixels that your eyes actually notice.
The result is an image that looks the same but weighs far less. For most photos, a quality setting of 75% removes 60–80% of the file size with no visible difference. If you need a photo file size reducer for a website, a lower quality setting produces extremely light files that still look sharp on screen. And if your goal is an exact limit, our image size reducer in KB can hit a specific target such as 20 KB, 50 KB or 100 KB.
You can compress every popular format in one place:
Searching for an app to downsize photos or an app to shrink photos? You do not need to install anything. Sizeinkb is a web app that opens instantly in your phone or computer browser and works exactly like a native app – but without consuming storage, showing ads in your notification bar or asking for permissions. Because it runs in the browser, you always get the latest version and the same experience on Android, iOS, Windows and Mac.
Book mark this page and reduce photo file size whenever you need it: before emailing large pictures, uploading documents to government or exam portals, posting on marketplaces, or speeding up your website.
Upload your photo using the tool above, pick a compression level and click "Compress Now". Your file is processed instantly and you can download the smaller version right away. The tool is 100% free with no signup and no watermark.
Our smart compression keeps visible quality intact at the recommended level (75%). Most photos shrink by 60-80% with no noticeable difference. You can raise the quality slider for near-original results or lower it for the smallest possible file.
Yes — this tool is a web app that works in any browser, so there is nothing to install. Just open this page on your Android, iPhone, tablet or desktop and you have a ready-made app to downsize photos or shrink photos in seconds.
Results depend on the original file, but typical photos are reduced by 60-80%. Large, unoptimized images can shrink even more. The exact before-and-after sizes and total savings are displayed for every file you compress.
Yes. Your images are processed on our server only to compress them and are automatically deleted within a few hours. We never view, share, sell or use your files for any other purpose.
Need a format-specific compressor? Try these: