Compress Image to 40KB
Get a photo, signature or small document scan under 40 KB for application forms and upload portals. Add one image or several, and each is squeezed until it fits.
Your images
Settings
PNGs are made smaller by using fewer colours, like TinyPNG. Photos saved as PNG are usually much smaller as JPG or WebP.
Hidden photo details (location, camera, date) are removed.
Quick sizes: 10 KB · 20 KB · 30 KB · 40 KB · 50 KB · 100 KB · 150 KB · 200 KB · 300 KB · 500 KB · 1 MB · 2 MB
How to use the Compress Image to 40KB
- Press Choose images, drop them on the box or paste with Ctrl+V; you can add up to 50 JPG, PNG or WebP files at once.
- Under Goal, keep Best balance and set the Quality slider, or choose Under a size and pick a limit such as 100 KB.
- Optionally change Save as or Longest side, then press Compare on any image to check the before and after with a sliding divider.
- Press Download for one image, or Download all to get every compressed image in a single ZIP.
Good to know
- A head-and-shoulders photo fits under 40 KB with good detail. A full phone photo loses more, so crop first.
- For a document scan, use good light and a plain background: shadows and wrinkles add detail the file has to keep.
- Keep your original. If a form rejects the result for its dimensions, resize the original in the Image Resizer and compress again.
- Quality 75 usually looks the same as the original at a fraction of the size. Below about 70, photos turn a little softer, and below 55 visibly so.
- For photos, WebP or JPG is far smaller than PNG. Keep PNG for logos, screenshots and graphics with see-through backgrounds.
- If a photo cannot reach your limit at low quality, the tool also makes it smaller in pixels. If it still will not fit, it tells you.
- Hidden photo details such as location, camera and date are removed, which is good for privacy before you post or send a picture.
- Need an exact shape too, like 1080 × 1350 for Instagram? Resize first with the Image Resizer, then compress here.
Questions
How do I reduce image size to 40KB?
Add the image with the limit at 40 KB, choose JPG and press Download. The tool lowers the quality, and the pixel size only if it has to.
Will my photo stay clear at 40KB?
For a cropped passport-style photo, yes. Open Compare to see the before and after side by side before you upload.
How do I compress an image to 100KB?
Choose Under a size, pick 100 KB and add your photo. The tool lowers the quality until it fits, and shrinks the pixel size only if it has to. There is also a ready page to compress an image to 100KB.
How do I reduce photo size to 20KB or 50KB for a government or exam form?
Many Indian application forms for jobs, exams and government services ask for a photo or signature under 20 KB to 100 KB. Use compress image to 20KB or 50KB and save as JPG, the format most forms accept.
Does compressing an image reduce quality?
A little, but at Best balance the difference is usually hard to see. Press Compare and drag the divider, or switch to 100% zoom, to check fine details before you download.
How can I make an image under 200KB, 500KB or 1MB?
Pick the limit under Under a size, or open compress to 200KB, 500KB or 1MB. An image already under the limit is usually left untouched.
Can I compress iPhone HEIC photos?
Only if your browser can open them, which usually means Safari. Otherwise share the photo from the Photos app as a JPG first, then add it here.
Are my photos uploaded to a server?
No. Compression runs entirely in your browser, so your images never leave your device. It is free, with no sign-up and no watermark.
