Image Resizer
Resize images to exact pixel dimensions or platform presets — Instagram, YouTube thumbnails, passport photos, and more. Free and client-side.
Drop an image here or click to browse
Supports PNG, JPG, and WebP — resized instantly, nothing is uploaded
Original
Resized
File size
How to use Image Resizer.
- 1
Drop an image into the tool or click to choose a file
- 2
Pick a preset size or enter custom width and height
- 3
Choose the output format (JPG, PNG, or WebP)
- 4
Preview the result and click Download
Why use this tool.
Hit exact dimension requirements for uploads, listings, and print
One-click presets for the sizes people actually need
Photos never leave your device — safe for ID photos
No signup, no watermark, no file limits
About Image Resizer.
True Tool Deck's Image Resizer changes your image to exact pixel dimensions — either a custom width and height or one-click presets for the sizes people actually need: Instagram posts and stories, YouTube thumbnails, X headers, and passport photos. When the target shape differs from your original, the tool scales to fill and center-crops, so you always get exactly the dimensions you asked for with no stretching. Output as JPG, PNG, or WebP and download instantly. Like every True Tool Deck utility, it runs 100% in your browser: personal photos and identity documents are never uploaded anywhere.
Frequently asked questions.
Will resizing distort my image?
No. When the target size has a different aspect ratio than your image, the tool scales the image to fill the frame and center-crops the overflow — the standard approach for thumbnails and profile photos. With ratio lock enabled on custom sizes, proportions are preserved exactly.
Does making an image bigger reduce quality?
Enlarging beyond the original dimensions can't add detail — the result will be somewhat softer. Downscaling (the common case) keeps images sharp. For best results, start from the largest original you have.
What's the difference between resizing and compressing?
Resizing changes the pixel dimensions (e.g. 4000×3000 → 1280×720). Compressing reduces file size at the same dimensions by encoding more efficiently. They're often combined — our Image Compressor handles the file-size side.
Is my photo uploaded to a server?
No. Resizing happens entirely in your browser with the canvas API. ID photos, documents, and personal pictures never leave your device.
Guides for this tool.
- YouTube banner safe area explained: why your channel art gets cut off on phones
YouTube shows one banner image at different crops on TV, desktop, tablet and phone. Only the centre strip is guaranteed to show. The exact safe-area pixels, where to put your guides, and how to check the crop before you publish.
- IBPS PO & Clerk: the four upload sizes (photo, signature, thumb impression, handwritten declaration)
IBPS asks for four scanned images, each with its own KB range and pixel size. One table with all of them, the exact declaration wording, and how to land every file inside its window without uploading anything.
- SSC CGL photo and signature size: what the portal accepts (and what changed)
SSC now captures your photo live in the form — you can't upload one. The signature is still a 10–20 KB JPEG, and that's where most rejections happen. Here's how to get it right first time.
- UPSC photo and signature size: 20–200 KB, 20–100 KB, and the three-signature rule
UPSC's online form wants a JPG photo between 20 and 200 KB, a JPG signature between 20 and 100 KB — and it must be three signatures, stacked. What each rule means and how to meet it without uploading your ID photo anywhere.