How to compress an image to a size in KB
- Choose your photos. Click the box above and pick one photo or many: phone photos, iPhone HEIC pictures, screenshots or scans. They open in this tab; nothing is sent anywhere.
- Tap the size. Use the size the form states, like 20 KB for a photo or 50 KB for a signature. For another limit, tap Custom and type it, for example 30.
- Download. Each result shows its size before and after, its new width and height and a preview. Download them one by one, or as one ZIP when you have several.
Good to know
- The result is always a JPEG. It’s what almost every form asks for. Transparent areas of a PNG are filled with white.
- Quality goes first, pixels second. The tool keeps the full width and lowers the JPEG quality. Only if that isn’t enough does it scale the image down, just as far as needed.
- Form wants exact pixels too? Some forms ask for, say, 200×230 px as well. Crop to that shape first with Crop image, then compress here.
- A PDF instead of a photo? Use Compress PDF. To turn photos of pages into one PDF, use JPG to PDF.
- iPhone HEIC photos work. If your browser can’t read them, the tab loads the libheif decoder on first use. Camera details and GPS location are not copied to the result.
Your images stay on your device
Most online compressors upload your photo to their servers. Here, every image is decoded and saved as a smaller JPEG inside this browser tab, using your browser’s own image tools. That matters when it’s your passport photo, your signature, or a scan of your Aadhaar, PAN card or marksheet.
The page’s security policy tells your browser to block uploads, so your images can’t leave your device even by accident. You can check: open your browser’s developer tools, watch the Network tab, and compress a photo. How InTheTab works
You’ll also see a few small requests to Google Analytics. That’s our visit counter, and it never receives your files. Privacy policy
Questions
How do I compress a photo to 20 KB or 50 KB?
Pick the photo above and tap 20 KB or 50 KB. The page saves a JPEG just under that size, keeping as much quality as it can, and you download it. Nothing is uploaded.
Why does my form reject the photo?
Most government and exam forms check three things: the file type (usually JPG), the size in KB, and sometimes the width and height in pixels. A phone photo is often 3 to 5 MB, far above a 50 KB or 100 KB limit. Compress it to the size the form states and save it as JPG.
Will compressing make the photo blurry?
A little, at very small sizes. The tool first lowers JPEG quality and only then makes the image smaller in pixels, so faces and text stay readable. For a passport photo, 20 KB is usually fine; for a scanned document, 100 KB or more keeps text sharp.
Can I compress several photos at once?
Yes. Select as many photos as you like; each one is compressed to under the size you chose, and with two or more you can download them all as one ZIP file.
Is 50 KB counted as 50,000 or 51,200 bytes?
Forms differ, so the tool uses the stricter 50,000 bytes. A file it makes under 50 KB passes a form that counts either way.
Do I need to install anything or sign up?
No. It runs in any modern browser on Android, iPhone, Windows, Mac or Linux. It’s free, there’s no sign-up and no watermark is added.