FlowVidFlowVid.

Compress tool

Image Converter in KB — Change Any Image to the KB You Need

Most "converters" change the format; this one changes the kilobytes. Choose a size on the scale, from a 10KB signature up to a 1MB photo for email, and any image you drop in comes back as a JPG at that size. Change your mind and tap another size — the original stays loaded in your browser, so every version is made fresh from it.

An image converter in KB changes an image's file size to a number you choose. Pick a target from 10KB up to 1MB, upload a JPG, PNG, WebP or HEIC, and the tool re-encodes it as a JPG just under that size at the best quality that fits. Switching the target re-runs it from the original.

100% private — your images never leave your device. No upload, no sign-up. Check it yourself: once this page loads, it works with your internet switched off.

pick a target sizeon-device · not uploaded

Target size — tap to switch any time

Drop your image here

or click to browse

accepts: JPG, PNG, WebP, HEIC

Unlimited and free · processed on this device · nothing is uploaded

Required photo dimensions and file sizes differ between forms and change over time. This tool helps you hit a common target, but always verify the exact requirement on the official form or notification before you submit.

SizeTypical imageWhat to expect
10 KBSignature, initials, small iconClean for line art; soft for photos
20–50 KBID and form photosClear face when cropped to head and shoulders
100–200 KBProfile photos, documents photographed as JPGSharp; small print stays readable
500 KB–1 MBPhotos for email, listings and websitesClose to the original, at a fraction of the size
What each step on the scale is usually for
Example

What the result looks like

Example photo compressed to 18.4 KB — under 100 KB — as a JPG
Example photo compressed to 18.4 KB — under 100 KB — as a JPG.
Before and after: an original photo and the same photo made to 100 KB (18.4 KB) with Image Converter in KB
Before and after: an original photo and the same photo made to 100 KB (18.4 KB) with Image Converter in KB
Image Converter in KB size guide: target 100 KB, max 100 KB, JPG
Image Converter in KB size guide: target 100 KB, max 100 KB, JPG

How to image converter in kb

  1. Pick a size — anything from 10KB to 1MB.
  2. Drop in a JPG, PNG, WebP or HEIC, or click to browse.
  3. The image is re-encoded as a JPG just under the size you picked.
  4. Download it, or tap another size to make a new version from the same original.

What you can use it for

  • Convert one image into several file sizes for different uploads
  • Bring a large PNG or HEIC down to a set KB as a JPG
  • Make a 500KB or 1MB copy of a big photo for email
  • Give website images a fixed size budget

Why use FlowVid Tools

  • Private by design — your image is processed on your own device and is never uploaded to any server.
  • Completely free and unlimited — no daily cap, no watermark, no sign-up.
  • Fast — drop your image, get the result in seconds. No queues, no waiting.

Supported formats

This tool accepts JPG, PNG, WebP, HEIC as input and gives you a image at the KB you choose as output. Everything happens on your device in seconds — your file is never uploaded, so there is nothing for anyone to keep.

File size, not pixels or format

Three different jobs get called 'converting' an image: changing its format (PNG to JPG), its pixel dimensions (1920×1080 to 800×450), or its file size in KB. This page does the third, re-encoding the image as a JPG and searching for the highest quality that still fits the KB you selected.

Pixel dimensions only change when quality alone can't reach the target — typically a big photo forced into 10 or 20KB. For an exact width and height, use the pixel resizer; for a format change with no size target, use a format converter.

FAQ

Frequently asked questions

01

Does an image converter in KB change the format too?

It outputs JPG, because JPG can be tuned to an exact size and is the format forms accept. A PNG, WebP or HEIC goes in and a JPG at your chosen KB comes out. To change format without targeting a size, use the Image to JPG or Image to PNG converters.
02

Can it make an image bigger in KB?

This page is built to bring files down to a size; it doesn't add bytes to reach one. If a form needs a file of at least a certain size and yours is smaller, the Increase Image Size in KB tool raises it to an exact figure.
03

Why is 1MB on a list of KB sizes?

1MB is 1,000KB in the decimal units most sites use, and it's a common limit for email-friendly photos and some job portals. Choosing it keeps a photo close to its original quality while cutting a multi-megabyte camera file right down.
04

Which size keeps the best quality?

The largest one your destination accepts. Every step down the scale removes detail, so pick the actual limit rather than a smaller 'safe' number — the tool already lands just under the figure you choose.
05

Is my photo uploaded anywhere?

No. The tool runs inside your browser, so your photo is read and processed on your own phone or computer and never sent to our servers or anyone else's. We never receive it, so we can't see, keep or share it — which makes it safe for sensitive documents like Aadhaar, PAN, passports and bank statements.
06

Is this tool really free? Is there a daily limit?

Yes, it's free with no daily limit. Because the work happens on your device, an extra photo costs us nothing — so there's no cap, no watermark and no account needed. Process as many files as you like.
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