Resize Image Size in KB & Pixels – Free Online Image Resizer

Published January 1, 2025 · Last updated August 3, 2026

Key takeaway (TL;DR)

In short: to resize an image size in KB or pixels, upload your photo, enter the width and height (or pick a preset), set a target file size or quality, then download. Bottom line: it takes about 10 seconds, is 100% free, needs no signup, and every image is processed in your browser — nothing is ever uploaded to a server.

• Cost: free, unlimited, no signup or watermark.
• Speed: ~10 seconds per image, instant download.
• Privacy: 100% browser-based, zero uploads.
• Formats: JPG, PNG and WebP, resized by pixels, percentage or KB.