Resize Image in KB
Target a specific kilobyte limit for emails, form uploads, and fast pages while keeping images readable.
Upload Your Image
Drag & drop or click to select your image (Max 20MB)
Supports JPG, PNG, GIF, WEBP formats
KB Target Compression with Control
Set a precise size limit and tune clarity without heavy trial and error.
Exact KB Target
Enter any KB goal and compress to match upload requirements, keeping files light for forms and email attachments. This is ideal for platforms with strict file limits.
Smart Compression Steps
Balances quality and size automatically, reducing harsh artifacts while still reaching the KB target you set. It iterates gently to protect edges and text.
Dimension Assist
Lower pixel dimensions only when needed to meet the size cap, while keeping proportions intact. This helps preserve visual clarity at small sizes.
Format Switch
Toggle JPG or WebP to hit smaller sizes faster, with PNG support when transparency is required. Switching formats can save more KB than quality changes alone.
Local Processing
Everything runs in your browser for speed and privacy, so files never leave your device. This keeps confidential images off remote servers.
Predictable Output
Preview results immediately and download once the file meets your KB target with clean edges. You see the final weight before saving.
Reduce to a KB Target in 3 Steps
Upload, set your KB limit, and export a smaller file in seconds.
Upload Your Image
Drag in a JPG, PNG, or WebP and start with the best source you have. Clean sources compress better. Start with your best quality file.
Set a KB Limit
Enter your target size in KB and choose the format that best balances quality and weight. Adjust if the file is still large.
Download the File
Preview the result and save the compressed image once it meets the target size. Download once the target is reached. The file is ready for upload.
Compress to a KB Target
Meet upload limits without heavy quality loss. Choose a KB goal and export a lighter file instantly. Useful for forms, email, and fast pages.
KB Resize FAQ
Answers to common questions about hitting KB size limits.
A KB target guarantees the final file meets a specific upload limit. Quality sliders can vary by image, but a size target lets you control the exact weight every time. This is useful when forms reject files above a fixed size.
If the file is too detailed for a very small limit, reduce dimensions or switch to WebP. The tool will compress as much as possible while keeping the image usable. Start from a clean source to avoid artifacts at tiny sizes.
Yes. Lowering width and height reduces total pixels, which makes it easier to hit smaller KB targets without extreme compression artifacts. This is the fastest way to cut size while keeping clarity. It is especially effective for large photos.
WebP often achieves smaller files with better quality compared to JPG. If your platform supports WebP, it is a strong choice for tight KB limits. JPG remains a safe option for legacy compatibility. Many modern browsers now support WebP.
Exports are rebuilt and typically strip camera metadata, which saves space and improves privacy while keeping the visible image intact. If metadata is required, keep the original file. Removing metadata can also cut a few extra KB.
Compression can soften fine details on very small targets, but the tool balances quality to keep edges readable. Preview before download to confirm the result. You can raise the KB target slightly if details are too soft.
Yes. Change the unit to MB if you need a larger size cap. This gives you more room for detail while still controlling file weight. MB targets are useful for portfolio or high-resolution uploads. Use MB when you want higher fidelity.
Yes. Everything runs locally in your browser, so images are not uploaded or stored on any server. This keeps sensitive files private. You stay in control because nothing is sent to a server. This is ideal for confidential documents or client work.
Yes. The resizer is free to use with no registration, watermarks, or hidden limits.
Your images are processed locally in your browser and are not uploaded to our servers.