Photo Size Reducer
Reduce a photo to a target size in KB or to specific dimensions for forms and uploads. Runs entirely in your browser.
Best for hitting a smaller target size. Example: get a photo under an upload limit.
Before you use: the exact final size depends on the photo's content.Best for: hitting a target file size. Not ideal for: keeping every pixel of detail.
- Upload the photo.
- Lower quality toward a target file size.
- Download the reduced file.
Photo Size Reducer is a browser-based image tool on ImgToolsBase. Reduce a photo to a target size in KB or to specific dimensions for forms and uploads. Runs entirely in your browser. To use it, upload or drop your image and view the result directly in your browser — no signup and nothing to install.
How this tool works
What it does
Reduces a photo to a smaller file by quality, by a target size in KB, or by limiting dimensions. Useful when a form rejects images above a certain size.
Target and dimensions
Set a KB target and the tool converges toward it, or cap width, height, or percentage directly when a portal specifies maximum dimensions.
Privacy
The photo is processed on your device with no upload. Your files are never sent to imgtoolsbase or any other server.
Photo Size Reducer in your browser
Photo Size Reducer focuses on one job: getting a photo under a size or dimension limit that an upload form or portal requires. It runs privately in your browser with no server round trip.
Use Target file size to approach a KB cap, or set maximum width, height, or scale percentage when a form asks for specific dimensions. The tool reports the size it achieved.
How to use Photo Size Reducer
- Add the photo you need to shrink, by upload box or drag and drop.
- Choose Target file size and enter a KB limit, or set a maximum width, height, or percentage.
- Pick a quality level if you are using manual mode.
- Click Process, confirm the size meets the limit, then click Download.
Why use this tool
Target file size mode lowers quality and dimensions to approach the cap a form requires, and reports the size achieved.
Limit width, height, or percentage when a portal specifies maximum pixel sizes.
See original size, output size, dimensions, and percent saved after every run.
Everything runs locally in your browser, so the photo is never uploaded.
Common uses for Photo Size Reducer
Meet strict KB and dimension limits for document uploads.
Reduce a photo to the exact size a portal accepts.
Fit images under per-image size caps.
Get a passport-style photo under the required size.
Frequently asked questions
How do I get my photo under a specific KB size?
Switch to Target file size, enter the KB limit, and the tool lowers quality and, if needed, dimensions to approach it, then reports the achieved size.
Can I set exact maximum dimensions?
Yes. Choose the resize option for maximum width, maximum height, or a scale percentage, and the photo will not exceed it.
Can I reduce a photo for an upload form without sending it online?
Yes. The photo is reduced in your browser, so you can prepare it for an upload form without sending it anywhere first.
What if the target size cannot be reached?
The tool gets as close as it can by lowering quality and downscaling, and reports the closest size achieved so you can resize further if required.
Does it keep my original format?
By default it keeps your input format. You can convert to JPG, PNG, or WebP if that produces a smaller file.
Related image tools
Tools that pair well with Photo Size Reducer.