Increase image size in KB

Increase the KB of a photo to meet a form's minimum file size — 20 KB, 50 KB, 100 KB or any target. A free, instant image KB increaser that runs 100% in your browser.

Files never uploadedNo sign-upWorks in your browserFree & unlimited
📁 Drop a JPG/PNG here, or click to choose — increase to 50 KB

Increase your image in 3 simple steps

1

Set the minimum KB

Type the size your form needs, or tap a preset like 20, 50 or 100 KB.

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2

Upload your photo

Drop a JPG or PNG — it stays on your device and is never uploaded.

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3

Download

The tool tops the file up to your target and you download a standard JPG.

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Why use this KB increaser

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100% private

Everything runs in your browser; your photo is never uploaded to a server.

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No quality loss

It only adds harmless padding to reach the size — the picture looks identical.

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Instant

Hit any KB target in about a second — no waiting and no queue.

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Exact size

Meet a strict minimum like 20–50 KB so a form finally accepts your image.

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Works anywhere

Phone, tablet or desktop, in any modern browser.

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Free & unlimited

No sign-up, no watermark — use it as many times as you like.

When you need to increase a photo's size in KB

Most people compress photos to get under a limit — but many online application forms also set a minimumfile size. A common rule is a photo of "20 KB to 50 KB", so an image that is only 8 KB is rejected for being too small. This tool does the opposite of a compressor: it is an image KB increaser that makes your photo bigger in KB until it meets the size you need.

How to increase the KB of an image

Set the minimum KB you need, upload your photo, and download — the increaser keeps your picture at full quality and simply tops the file up to the target, so the photo looks exactly the same and uploads as a normal JPG. It works the same whether you want a 20 KB, 50 KB or 100 KB photo, and it is the easiest way to increase the KB of an image without any loss of clarity.

Need to go the other way and reduce the size instead? Use our Image Compressor or resize an image in KB to a maximum.

Related image tools

Resize Image in KBReduce a photo to an exact KB size.Open tool Image CompressorCompress JPG/PNG to an exact KB size.Open tool Image ResizerResize photo by pixels or exam preset.Open tool Passport Photo MakerWhite-background passport / exam photo.Open tool

Frequently asked questions

Why would I need to increase an image's size in KB?
Some exam and job portals set a MINIMUM file size as well as a maximum — for example, a photo must be between 20 KB and 50 KB. If your image is below the minimum, the form rejects it, so you need to increase its size to fit the range.
How do I increase an image to a minimum KB?
Set the minimum KB you need above, then upload your photo. The tool re-saves it at top quality (enlarging it if necessary) and tops up the file to your target, then lets you download it — all in your browser.
Does increasing the file size reduce quality?
No. The tool keeps your image at the highest quality and only adds harmless padding to reach the size — the picture looks identical, it just weighs more on disk so it passes the minimum-size check.
Is the image still a normal JPG I can upload?
Yes. The result is a standard JPG that opens and uploads everywhere; the extra bytes are ignored by image viewers and form checkers, which only read the file size.
How do I increase the KB of a photo?
Set the minimum KB you want, upload the photo, and download. The tool increases the KB of the image to your target while keeping it at full quality, so a small photo passes a form's minimum-size check.
Is this an image KB increaser?
Yes. It is a free online image KB increaser — it makes a photo bigger in KB (for example from 8 KB up to 20, 50 or 100 KB) without changing how the picture looks.
Is it free and private?
Completely free with no sign-up, and the image is processed entirely on your device — it is never uploaded to a server.

By Narender Chaudhary, Editorial & Product Lead · Updated June 2026