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Advanced Image Resizer & Multi-Tool Suite

Resize, compress, and optimize multiple photos to exact KB, custom pixels, or print dimensions without uploading to any server.

Size Settings

Scale Percentage
Popular Presets:

Quality & Format

Image Quality

PNG uses lossless compression (quality slider is not needed).

Turbo Batch Engine Included

Process 1 to 50 photos simultaneously. Download as individual files or bundle all in 1 single ZIP archive.

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All Tools in "Resize" Category

Every specific sizing format, exact target KB threshold, and physical print converter.

Advanced Image Resizer

Resize multiple images online by percentage, custom pixels, exact target KB, or print units.

Resize Image in Pixels

Set exact width and height dimensions in pixels with aspect ratio preservation.

Resize Image in KB

Compress and reduce your photo to any custom Kilobyte (KB) size target.

Resize Image in MB

Compress heavy multi-megabyte DSLR and mobile photos into manageable sizes.

Resize Image to 10KB

Reduce photo or signature size to under 10KB for strict online portals.

Resize Image to 15KB

Quickly downscale photos and identity card scans to 15KB.

Resize Image to 20KB

Popular choice for passport photos and exam registration portals.

Resize Image to 25KB

Reduce image size down to 25KB in one click.

Resize Image to 30KB

Accurately adjust image weight to 30KB.

Resize Image to 40KB

Compress photos to 40KB for web and form uploads.

Resize Image to 45KB

Tailor-made tool for portals with strict 45KB thresholds.

Resize Image to 50KB

The golden standard for employment forms and online KYC verification.

Resize Image to 75KB

Balance visual sharpness and bandwidth with 75KB optimization.

Resize Image to 100KB

The most popular size limit for corporate resumes and visa applications.

Resize Image to 200KB

High-resolution optimization for website banners and portfolios.

Resize Image in CM

Specify physical print dimensions in Centimeters with DPI calibration.

Resize Image in MM

Millimeter precision for stamps, identity badges, and micro documents.

Resize Image in Inches

Standard US print sizing in inches (2x2 passport, 4x6, 5x7, 8x10).

Reduce Image Size in KB

Dedicated low-bandwidth photo reducer to shrink file weight in KB.

Reduce Image Size in MB

Shrink large megabyte photos from DSLRs and smartphones.

Reduce Image to 100KB

Target 100KB file size with one click.

Reduce Resolution of Image

Downscale megapixels and display resolution for faster web rendering.

Why ReducePhoto.com is the Best Online Image Resizer & Photo Optimizer

Finding a trustworthy photo resizer that does not upload your sensitive personal files to unknown third-party servers is critical. At ReducePhoto.com, we have revolutionized online image resizing by performing 100% of all pixel downscaling, contrast adjustment, and low image size target compression directly on your local device using high-performance HTML5 Canvas and multithreaded Web Workers.

100% In-Browser Privacy

Your photos never leave your computer or phone. No uploads, no server storage, zero data leaks.

Exact Target KB Resizing

Need exactly 20KB for a passport or 50KB for an online exam form? Our smart algorithm hits your target file size within ±2% margin.

Batch ZIP Downloads

Select dozens of images at once. Process them in seconds and download all optimized files in a single clean ZIP archive.

Frequently Asked Questions (FAQs)

Select "Kilobytes (KB)" from the Resize Method dropdown, enter "20" or "50", upload your photo, and click "Resize Images Now". The tool automatically calculates the optimal compression ratio and resolution to hit your target file weight.
No. ReducePhoto.com utilizes high-precision bicubic downsampling algorithms and smart quantization. It removes unnecessary EXIF metadata and optimizes image entropy to keep the photo crisp and sharp.
Yes! Choose "Centimeters (cm)" from the dropdown or click our "Passport (3.5×4.5cm)" preset. The tool converts centimeters into 300 DPI high-definition print pixels for clear studio-quality printing.