Resize Image to 400x400 (400 x 400 Pixels)

400×400 pixels is the recommended profile-picture size for X (Twitter) and LinkedIn, and a safe choice for most other networks too. Both platforms display the photo much smaller and in a circle, but they use the 400 px original on profile pages and high-resolution screens, so uploading exactly this size keeps your face sharp without the platform re-compressing an oversized file. It is also widely used for company logos on LinkedIn pages and for Slack, Teams and Zoom avatars.

A 400 × 400 image holds 160,000 pixels (0.16 MP). Saved as a JPG at the default 90% quality, a typical photo at this size weighs roughly 30 to 65 KB; logos and flat graphics are usually lighter. In print, 400 pixels span 1.33 in (3.4 cm) at 300 DPI, or 2.67 in (6.8 cm) at 150 DPI.

What 400 × 400 pixels is used for

• X (Twitter) profile photo: 400 × 400 is the recommended upload; it is shown in a circle.
• LinkedIn profile and company logo: the recommended size for personal photos and page logos.
• Work chat avatars: Slack, Microsoft Teams, Zoom and Google accounts.
• Square website images: team pages, testimonials and medium product thumbnails.

How to resize an image to 400 × 400 pixels

1. Drop your images on the box, click to choose them, or paste one with Ctrl+V (JPG, PNG, WebP, AVIF, HEIC, GIF, BMP, TIFF, SVG; up to 80 MB each).
2. The size is preset to 400 × 400 px with Crop to fill; choose which part to keep (center, top, bottom, left or right) or switch to Fit with background or Stretch.
3. Pick the format: Original, JPG, PNG, WebP or AVIF (in browsers that can encode it), and set the quality, or switch to Target size and enter a limit in KB.
4. Drag the before/after slider on the preview; every change is re-rendered live.
5. Click Download, or Download all (ZIP) for several files, named like photo-400x400.jpg.

Turning a non-square photo into 400 × 400

Phone and camera photos are usually 4:3 or 3:2, so a square needs a decision. Take a 4000 × 3000 shot: Crop to fill scales it to 533 × 400 and trims about 67 px from the left and right edges. Fit with background keeps the whole picture at 400 × 300 and fills 50 px above and below with white, black, grey, any colour or transparency (PNG, WebP, AVIF). Stretch squeezes it to 400 × 400, which distorts faces, so keep it for images that are almost square already. With Fit, the Don't enlarge smaller images option centres a small source at its own size instead of blowing it up.

Tips for 400 × 400 images

• Profile photos are cropped to a circle: keep your face centred with some space around the head, because the four corners disappear.
• Use the Top position when cropping a portrait shot so the chin-to-hair area stays in the frame.
• Logos with transparent backgrounds: save as PNG, or pick a solid background colour with Fit with background so the logo does not touch the circle's edge.

Everything runs in your browser: images are never uploaded, and there is no account, no watermark and no limit on the number of files. Under More options you can write a DPI value into JPG and PNG files or change the file-name pattern, and location and camera data (EXIF) are always removed. Related tools: 800×800 resizer, 300×300 resizer and compress to 50 KB.

400x400 image size at a glance

Property	Value
Dimensions	400 × 400 pixels
Aspect ratio	1:1
Orientation	square
Total pixels	160,000 (0.16 MP)
Print size at 300 DPI	1.33 × 1.33 in (3.4 × 3.4 cm)
Print size at 150 DPI	2.67 × 2.67 in (6.8 × 6.8 cm)

Related sizes: 300×300, 350×350, 450×450, 500×500. For any other width and height, use the custom size resizer.