FlowVidFlowVid.

Resize tool

Resize Image to 400×400 Pixels — Free

Resize any image to a sharp 400×400 pixel square in seconds. 400×400 is a standard profile-picture size on many platforms, including LinkedIn. The tool centre-crops your picture to exactly 400×400 with no distortion. Nothing is stored.

100% private — your images never leave your device. No upload, no sign-up. Check it yourself: once this page loads, it works with your internet switched off.

400×400on-device · not uploaded

Drop your image here

or click to browse

accepts: JPG, PNG, WebP, HEIC

Unlimited and free · processed on this device · nothing is uploaded

Width
400 px
Height
400 px
Format
JPG
Example

What the result looks like

Example Resize to 400×400 image resized to 400×400 px, 8.7 KB JPG
Example Resize to 400×400 image resized to 400×400 px, 8.7 KB JPG.
Before and after: an original image and the same image made to 400×400 px (8.7 KB) with Resize to 400×400
Before and after: an original image and the same image made to 400×400 px (8.7 KB) with Resize to 400×400
Resize to 400×400 size guide: 400 × 400 px, JPG
Resize to 400×400 size guide: 400 × 400 px, JPG

How to resize to 400×400

  1. Upload your photo or signature.
  2. The tool resizes it to 400×400 px and compresses it to the required size.
  3. Preview the result and check the dimensions and file size.
  4. Download the ready-to-upload file.

What you can use it for

  • LinkedIn and social profile pictures (400×400)
  • Square avatars
  • Forms that require a 400×400 image
  • Web thumbnails

Why use FlowVid Tools

  • Private by design — your image is processed on your own device and is never uploaded to any server.
  • Completely free and unlimited — no daily cap, no watermark, no sign-up.
  • Fast — drop your image, get the result in seconds. No queues, no waiting.

Supported formats

This tool accepts JPG, PNG, WebP, HEIC as input and gives you a 400×400 px as output. Everything happens on your device in seconds — your file is never uploaded, so there is nothing for anyone to keep.

FAQ

Frequently asked questions

01

Is 400×400 the right size for a profile picture?

Yes — 400×400 pixels is the recommended profile-photo size on LinkedIn and works well across most social platforms. This tool crops to that exact square.
02

Is my photo uploaded anywhere?

No. The tool runs inside your browser, so your photo is read and processed on your own phone or computer and never sent to our servers or anyone else's. We never receive it, so we can't see, keep or share it — which makes it safe for sensitive documents like Aadhaar, PAN, passports and bank statements.
03

Is this tool really free? Is there a daily limit?

Yes, it's free with no daily limit. Because the work happens on your device, an extra photo costs us nothing — so there's no cap, no watermark and no account needed. Process as many files as you like.
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