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Bulk Image Resizer · kbimageresizer.com

Resize Multiple Images
to Exact KB Size

Upload multiple photos, set a target KB size, and download all resized images instantly. All processing happens in your browser — zero uploads, 100% private.

1

Upload Multiple Images

Drag & drop or click to select

0 images selected

Drop multiple images here or click to browse

JPG, PNG, WEBP — stays 100% private on your device

2

Target Output Size

Each image compressed to this size

100 KB
5 KBEach image will be compressed to ~100 KB500 KB
3

Process & Download

Click to compress all images

Questions?

Quick Answers

Are my images uploaded anywhere?

No. All processing happens in your browser. Images never leave your device.

What formats can I upload?

JPG, PNG, WebP, GIF. Output is always JPG (best for KB targeting).

Can I process many images at once?

Yes. No hard limit — tested with 50+ images. For 100+, split into batches.

How accurate is the KB targeting?

Very accurate. Binary search typically lands within ±2 KB of target.

Does it work offline?

Yes! After first load, everything runs locally without internet.

The Best Free Bulk Image Resizer Online — Resize Multiple Images in KB Instantly

If you've ever needed to resize multiple photos for government exam forms, job applications, or website uploads, you know how tedious it is to do them one by one. That's exactly why we built this free bulk image resizer. KB Image Resizer's bulk tool lets you resize multiple images to exact KB size in one go, without installing any software or uploading your photos to a server.

Whether you need to batch resize images to 20KB, bulk resize photos to 50KB, or resize multiple images to 100KB, this tool handles it in seconds. Upload all your images at once, set the target dimensions in pixels and the allowed file size range in kilobytes, and our binary-search JPEG compression engine processes every image to land precisely within that range. No guesswork, no manual trial-and-error per image.

Why Use a Bulk Image Resizer?

Desktop image editors like Photoshop or GIMP are powerful but overkill when all you need is to bulk resize images online for form submissions. Our online bulk image resizer works entirely in your browser — there's nothing to install, no account to create, and your images never leave your device. It's the simplest path from "my photos are too big" to "all my photos are accepted."

The tool is specifically designed for Indian government portals — SSC CGL, CHSL, MTS, UPSC CSE, NDA, IBPS PO, Clerk, RRB NTPC, BPSC, UPPSC, PAN card applications, Passport Seva, and more. Each exam has its own strict photo and signature size rules. Instead of resizing each photo individually, just pick your exam from the preset list, upload all your photos at once, and download them all perfectly sized in one click.

Bulk Photo Resizer with Exact KB Control

Most online bulk photo resizers let you change dimensions but give you no control over file size. This bulk photo resizer in KB does both at once for every image. You choose the target KB, pick your pixel dimensions, and the tool uses a 9-step binary search algorithm to hit the exact file size for each photo. It also pads JPEG metadata when needed to meet minimum KB requirements — a technique no other free bulk photo resizer offers. Download all as bulk resized JPG files or as a single ZIP archive in one click.

Bulk Image Resizer in KB — Key Features

  • Free bulk image resizer — 100% free, forever. No watermarks, no limits on how many images you process.
  • Simple bulk image resizer — Upload multiple, pick your preset, download all. Three steps is all it takes.
  • Bulk image resizer 50KB / 100KB — Dedicated presets for the most common government form requirements.
  • Batch image resizer KB — Set any custom KB range, not just fixed presets. Works for any portal worldwide.
  • Process 50+ images at once — tested with large batches, no hard limit.
  • Live preview per image — click any thumbnail to see exactly how it will look after compression.
  • Download all as ZIP — get all resized images in a single archive for easy upload.
  • Individual JPG downloads — grab just the ones you need.
  • 100% local processing — your photos never leave your browser.

100% Private — Your Photos Stay on Your Device

Unlike most free bulk photo resizers that upload your images to a cloud server for processing, KB Image Resizer's bulk tool does everything locally inside your browser using the HTML5 Canvas API. Your photos are never sent anywhere. This means your Aadhaar photos, signatures, or passport scans stay completely private — a critical consideration when submitting documents for official government applications.

Ready to get started? Select your exam preset above, upload all your photos or paste them from clipboard, and download the perfectly sized images in seconds. It's the fastest online bulk resize images experience built specifically for Indian exam aspirants — and it's completely free.