Compress Image to 30 KB — Free & Online
Compress an image to 30 KB for ID photos and application forms that cap the upload size at 30 KB.
- 100% Private
- No Upload
- Free Forever
Drop your image here or click to upload
JPG, PNG or WEBP. Your image never leaves your device.
Choose a target size
Finding the best quality for your target size…
This is happening on your device — no upload.
Who needs a 30 KB image?
30 KB is a common ceiling on ID card applications, bank KYC uploads, insurance portals and college admission forms. It is slightly more generous than the 20 KB tier, which means a photo at this size holds noticeably more detail — enough that a face stays sharp rather than merely recognisable.
What to expect at 30 KB
A passport-style photo at 30 KB looks clean at the size these forms display it. Documents and scanned certificates also fare well because they are mostly flat white with text, which compresses efficiently.
A real example
A scanned A4 certificate at 150 DPI is roughly 1.5 MB in colour. Converted to greyscale and compressed it reaches 30 KB while the text stays perfectly readable.
Which format to use for 30 KB
JPG for photographs. For a scanned document, try greyscale JPG — dropping the colour channel alone often halves the size before any compression is applied.
Getting the best result at 30 KB
- Scan documents in greyscale — colour scans waste bytes on information nobody needs
- Crop off the blank margins around a scanned certificate before compressing
- A passport-style headshot at 30 KB stays sharp; a full-body photo will not
How it works
- 1
Upload your image
Drag it in or click to pick. Nothing is sent to a server.
- 2
Pick a target size
Choose 20 KB, 50 KB, 100 KB, 200 KB, 500 KB — or type any custom size in KB.
- 3
Download the result
We test quality levels (and shrink dimensions if needed) to land at or just under your target, then you download it.
FAQ
My scanned document looks blurry at 30 KB. Why?
Scans of text compress badly when saved as JPG, because the format smudges hard edges. Scan or export in greyscale if you can, and crop away the blank margins — both make a large difference at small target sizes.
Can I compress a signature to 30 KB?
Easily. A signature is mostly white space and compresses to well under 30 KB while staying crisp.
Frequently Asked Questions
How do I compress an image to exactly 100 KB or 50 KB?
Upload your image, pick a target (20 KB, 50 KB, 100 KB, 200 KB, 500 KB) or type a custom size in KB, then click Compress. The tool automatically tests quality levels — and reduces the dimensions if needed — to land at or just under your target size.
Are my images uploaded to a server?
No. Everything happens in your browser. Your image never leaves your device — there is no upload and nothing is stored. This makes it safe for IDs, documents and personal photos.
Why do I need an image of an exact size?
Many websites and government / exam / job application forms require photos under a specific size, such as 50 KB or 100 KB. This tool gets you under that limit without manual trial and error.
What if my target size is too small for the image?
If a size is impossible without destroying the image, the tool produces the smallest acceptable version it can and tells you it could not reach the exact target. Try a slightly larger target or a smaller starting image.
Which output format should I choose?
JPG gives the smallest files and is accepted almost everywhere, so it is the default. WEBP can be a little smaller at the same quality but is not accepted by every form. If a form asks for JPG/JPEG, choose JPG.