Image Resizer

Resize images to exact pixels, a percentage, a print size in cm or inches, or a target file size like 50 KB - up to 30 images at once, with ZIP download. Need a fixed shape? Use the Image Cropper; for social media sizes, the presets are ready. Works with PNG, JPG, WebP, HEIC and more.

Drop images here or browse PNG, JPG, WebP, AVIF, GIF, BMP, TIFF, HEIC, JXL - up to 30 at once, 50 MB each, or paste with Ctrl+V.
Pixels, %, cm or KB Exam & visa photos No watermark Try:
+- percentage  |  L aspect lock  |  Enter resize  |  Ctrl+V paste image
Related Tools
Image Cropper Compress JPG Image Upscaler Social Media Resizer GIF Resizer

How to resize an image online

  1. Add your images. Drop up to 30 JPG, PNG, WebP, HEIC or other images into the box, paste one with Ctrl+V, or try a sample.
  2. Choose the size. Pick a percentage, exact pixels, cm or inches, one number for the long side, or a file size in KB - or an exam or visa preset.
  3. Check the output. The card above the preview shows the new pixel size and file size. Quality and format are in the settings.
  4. Download. Press Resize Image. Three or more images come back together in one ZIP.

Enlarging a lot? The Image Upscaler rebuilds detail with AI. To make a file smaller without changing its pixels, use Compress JPG.

About image resizing

Image resizing changes the pixel dimensions of your images. This is useful for preparing images for websites, social media, email attachments, or print. Our tool uses high-quality resampling algorithms to maintain image sharpness.

Resize Modes

  • By Percentage: Scale your image proportionally. 50% makes the image half its original size, 200% doubles it.
  • By Dimensions: Specify exact width and/or height. Enable aspect ratio lock to prevent distortion. Switch the unit to cm, mm or inches to resize for print.
  • By Long Side: Type one number, such as 1920. Landscape images get that width and portrait images that height, so a mixed batch comes out evenly sized.
  • By File Size: Set a limit such as 50 KB or 1 MB - quality, and dimensions if needed, are lowered until the image fits.

Supported Formats

This tool supports PNG, JPG/JPEG, WebP, AVIF, GIF, BMP, TIFF, HEIC/HEIF, and JPEG XL images. You can also convert between formats during resize by selecting a different output format. HEIC, TIFF, and JXL files are decoded server-side for broad browser compatibility, while most other formats are processed entirely in your browser for maximum privacy.

Resize an image to 20 KB, 50 KB or 100 KB

Job portals, exam forms and visa sites often accept only small photos. Choose File Size, pick the limit and press Resize - quality and, if needed, dimensions are lowered until the file fits.

Small KB targets work best as JPG. To shrink a file without changing its pixel size, use Compress JPG.

Photos and signatures for exam and visa forms

Online application forms check two things: the size in pixels and the file size in KB. Open Exam, visa & form photos in the settings, pick your form and press Resize.

The image is cropped or padded to the exact pixels and saved as a JPG inside the KB range.

A small signature often comes out under the minimum, so the JPG is padded with a harmless comment block until it reaches it - the picture does not change. Rules change from year to year, so check the notice for your exam first.

Need to cut out a head-and-shoulders crop first? Use the Image Cropper, then come back here.

Resize for print in cm, mm or inches

Choose Dimensions, switch the unit to cm, mm or inch and type the paper size. The pixels are worked out from the DPI - 300 DPI is the standard for photo prints.

Print sizeAt 300 DPIAt 150 DPI
Passport 2 x 2 in600 x 600 px300 x 300 px
Passport 35 x 45 mm413 x 531 px207 x 266 px
Photo 4 x 6 in1200 x 1800 px600 x 900 px
Photo 5 x 7 in1500 x 2100 px750 x 1050 px
A4 (210 x 297 mm)2480 x 3508 px1240 x 1754 px

The DPI is also written into the file, so printers use the right size. Need a passport crop first? The Image Cropper has a 2x2 in preset.

Frequently asked questions

Choose File Size, pick 50 KB (or type any size) and press Resize. Quality and, if needed, the dimensions are lowered until the file is under 50 KB. JPG reaches small sizes best - try resize to 50 KB.

Choose Dimensions, switch the unit to cm, mm or inch and type the size. Pick the DPI - 300 for photo prints - and the pixels are calculated for you. The DPI is saved in the file too.

Reducing size generally maintains quality well. Enlarging images can cause some blurring, but our tool uses high-quality resampling to minimize this. For best results when enlarging, consider using our Image Upscaler which uses AI to enhance quality.

Each image can be up to 50 MB. You can upload up to 30 images at once for batch processing. For larger files, consider using our JPG Compressor or PNG Compressor first.

Most formats (PNG, JPG, WebP, GIF) are processed entirely in your browser - your images never leave your device. For formats like HEIC, TIFF, JXL, and BMP output, images are temporarily sent to our server for conversion and automatically deleted within 4 hours.

Yes! You can upload up to 30 images and resize them all with the same settings - or switch on Custom settings for this image to give any single image its own dimensions, quality or format while the rest keep the shared ones. When you process 3 or more images, you'll automatically get a ZIP file containing all resized images.

Yes. Click Crop above the preview, then drag a selection or pick a ratio preset (1:1, 4:3, 16:9, 9:16, or the original ratio) and apply it. The crop is non-destructive - "Reset crop" brings back the full image at any time, and in batch mode each image keeps its own crop. For rotation, straightening or exact pixel coordinates, use the full Image Cropper.

Common sizes include Instagram posts (1080x1080), Facebook cover (820x312), Twitter header (1500x500), and YouTube thumbnail (1280x720). For more specific sizes, try our Social Media Image Resizer which has all the presets built in.

EXIF data is metadata embedded in your images by cameras and phones - it can include GPS location, camera model, timestamps, and more. Stripping it (enabled by default) is recommended for privacy when sharing images online. Uncheck "Strip EXIF / metadata" if you need to preserve this data, for example when archiving photos or maintaining copyright information.

For screen and web use, 72 DPI is standard. For home printing, 150 DPI delivers good quality. Professional print projects - brochures, posters, and photo prints - typically require 300 DPI. Use 600 DPI only for ultra-high-quality fine art or detailed technical prints. Note that DPI does not change pixel dimensions - it tells printers how densely to place those pixels on paper.

Upload the image, open Exam, visa & form photos and pick the form - for example Photo 200 x 230 px, 20-50 KB for IBPS, or Signature 4 x 2 cm, 10-20 KB for SSC. Press Resize and you get a JPG with the exact pixels inside the KB range. Small signatures are padded up to the minimum without changing the picture. Always check the latest notice for your exam, because the rules change.

The "By File Size" mode lets you set a maximum size (e.g. 500 KB or 2 MB) and the tool automatically adjusts quality and, if needed, dimensions to hit that target. It works best with JPG and WebP formats where quality directly impacts file size. This is ideal for email attachments, form uploads, passport photos, or any situation with file size limits. If you need a lossless format like PNG, consider using our PNG Compressor for better control.

Guides & Tutorials

All 17 guides
Optimization GIF Resizing Masterclass: Shrink File Size Without Losing Animation Quality Read the guide Optimization How to Reduce Image File Size Without Losing Quality Read the guide Comparison PNG vs JPG: Which Image Format Should You Actually Use? Read the guide