Free Image Resizer Online – Resize by KB, CM, Pixels & Bulk

Image Resizer

Resize images by pixels, percentage, exact file size (KB), or print dimensions (cm) — free, and works on multiple images at once.

Click to select images, or drag & drop here

Supports JPG, PNG, WEBP — select multiple for bulk image resizing

0 images selected

Width (px)

Height (px)

Lock aspect ratio

Scale to (%)

Target size (KB)

Works by adjusting JPEG compression quality to approximate your target size. Very small targets on large images may need several passes and can reduce visible quality.

Width (cm)

Height (cm)

Print resolution (DPI) 150 DPI (basic print) 300 DPI (standard print quality) 600 DPI (high quality)

Please add at least one image and fill in the required fields.

Resizing...

Your images are resized entirely in your browser and are never uploaded to any server.

Image Resizer — Free, Online, No Install

A job portal rejects your photo because it's "too large," a forum post won't accept anything over 200KB, or a passport application wants an exact 3.5x4.5cm photo and your phone camera gives you something completely different. This image resizer handles all of it from one page — resize by exact pixel dimensions, by percentage, down to a specific file size in KB, or to a precise print size in centimeters.

A Simple Image Resizer That Still Covers the Hard Cases

Most of the time, resizing an image just means typing in a width and height — the "By Pixels" tab handles that, with an aspect-ratio lock so you don't accidentally stretch anything out of shape. But two situations come up constantly that a simple image resizer usually can't handle well: hitting an exact file size, and getting a specific print dimension right. 

Image Resizer in KB — 50KB, 100KB, 200KB, and Beyond

Forms and portals that cap uploads at a specific KB limit are one of the most common reasons people search for an image resizer in the first place. The "By File Size (KB)" tab targets that directly — pick a preset (50KB, 100KB, 200KB) or enter your own number, and the tool adjusts compression automatically until the file lands at or under your target, without you manually guessing at quality settings.

Image Resizer in CM — For Print and Passport Photos

Digital images don't have a "size in centimeters" on their own — that only makes sense once you know the print resolution (DPI). The "By Print Size (cm)" tab does that conversion for you: enter your target size in centimeters (there's a passport photo preset built in) and a DPI setting, and it calculates the correct pixel dimensions for a sharp print at that size.

Bulk Image Resizer

Select more than one image at once, and every setting you choose — pixels, percentage, KB, or cm — applies to the whole batch. Each resized file downloads individually once processing finishes, so a folder of photos can be prepped in one pass instead of one at a time.

FAQs

Is this image resizer free to use? Yes, completely free online, with no sign-up, watermark, or file limit.

Are my images uploaded to a server? No — resizing happens entirely in your browser using your device's own processing power.

How accurate is the "resize to KB" feature? It gets very close to your target by adjusting compression quality in steps, though it's an approximation rather than an exact byte-for-byte match — for very aggressive targets on large images, there's a visible quality trade-off.

Can I resize images in bulk? Yes — select multiple images at once and the same resize settings apply to the whole batch.

Does this work the same on an iPhone 7 or any other phone? Yes — it's a browser-based tool, so it works the same on any phone's browser, iPhone 7 included, without needing a separate app.

Does it work on mobile devices in general? Yes, the tool is fully responsive and works the same way on any modern mobile browser.

Related Free Tools

• Image to PDF Converter — combine images into a single PDF.
• Image to Text (OCR) Extractor — extract editable text from images.