OctosparkOctoSpark
Free tool

LinkedIn photo resizer — perfect dimensions in your browser

Create professional images optimized for LinkedIn. Perfect dimensions for profiles, banners, posts, and company pages. Runs locally — your image never leaves your device.

Upload image

Drop your image here or click to browse.

Drop image here or click to upload

Supports JPG, PNG, WebP up to 10MB

Select size preset

Choose the LinkedIn placement you're sizing for.

Image guidelines

Use high-quality source images for best results.

Images are centered and scaled to fit the target.

A white background fills any letterboxed area.

Final output is JPEG at 90% quality.

Keep the focal point near the centre.

Privacy

Images are processed locally in your browser. Nothing is uploaded to our servers.

LinkedIn image size guide for professional success

Whether you're polishing a personal profile or running a company page, correct dimensions keep your content sharp.

Profile picture

  • Size400 × 400 pixels
  • FormatJPG, PNG
  • Max file size8MB
  • DisplayCircular crop
  • TipUse a professional headshot

Profile banner

  • Size1584 × 396 pixels
  • Aspect ratio4:1
  • Max file size8MB
  • UseShowcase expertise or brand

Feed post images

  • Recommended1200 × 628 pixels
  • Aspect ratio1.91:1
  • Max file size5MB
  • Best forMaximum engagement

Company logo

  • Size300 × 300 pixels
  • FormatPNG for transparency
  • DisplaySquare format
  • UseCompany page branding

Company cover

  • Size1128 × 191 pixels
  • Aspect ratio5.9:1
  • Max file size2MB
  • PurposeCompany page header

Article cover

  • Size1200 × 628 pixels
  • FormatJPG or PNG
  • UseLinkedIn article headers
  • ImpactDrives more views

Professional image best practices

  1. 1. Profile photo excellence: use a recent, professional headshot with good lighting. Your face should take up 60–70% of the frame.
  2. 2. Banner strategy: complement your professional brand. Include your tagline, showcase your work, or highlight your expertise.
  3. 3. Post image impact: posts with images receive about 2× more engagement. Keep branding consistent.
  4. 4. Company page cohesion: ensure the logo and cover work together for a professional presence.
  5. 5. Mobile optimization: most LinkedIn traffic is mobile — test how images appear on small screens.

Need more creative tools? Try OctoSpark.

Each free tool does one job. OctoSpark gives you the whole kit: posts and captions in your own voice, images and slideshows, and one calendar that publishes to every network and shows what performed.

Open the full sign-up page

No card needed. These tools stay free either way.

Frequently asked questions

How this tool works, what it cannot do, and what happens to what you put into it.

  • What are the optimal LinkedIn image dimensions?

    Profile pictures should be 400×400 pixels (displayed as circular), banner images 1584×396 pixels, post images 1200×628 pixels for best engagement, company logos 300×300 pixels, and company covers 1128×191 pixels.

  • Why is my LinkedIn profile picture blurry?

    LinkedIn compresses images, especially large files. Resize to exactly 400×400 pixels and keep file size under 8MB. Save as JPG for photos or PNG for graphics with text. Ensure your original is high quality.

  • What image formats does LinkedIn support?

    LinkedIn accepts JPG, PNG, and GIF. JPG is best for photographs, PNG for graphics with transparency or text, and GIF for simple animations.

  • How do I optimize images for LinkedIn posts?

    Use 1200×628 pixels for maximum visibility in the feed. Keep file size under 5MB. Add alt text for accessibility. Use high contrast and readable text. Test on both desktop and mobile.

  • Can I batch resize multiple LinkedIn images?

    This single-file resizer processes one image at a time, but you can run it back-to-back for a series — each pass uses the same preset for consistent dimensions.

  • Is my data private?

    Yes. This tool does its work in your browser, so whatever you type, paste or upload stays on your device. Nothing is sent to our servers, which is also why it keeps working if you go offline after the page has loaded.

  • Is this really free?

    Yes. Every tool here is free with no account, no credit card and no usage cap. They exist so that the people who need our scheduling product find us, which only works if the tools are genuinely useful on their own.

  • Do I need an account?

    No. Open the page and use it. An account is only for OctoSpark itself, where you plan, schedule and publish a whole calendar rather than fixing one post at a time.

  • Can I use the output commercially?

    Yes. Anything you produce here is yours, including for client and commercial work. We claim no rights over it and we do not watermark it.