Resize your Pinterest board cover
Upload a photo, frame it to a clean square, and export a board cover ready to set — no signup, nothing uploaded to a server.
Drop a photo here, or click to browse
JPG, PNG, WebP, GIF, or BMP
Preview
Dimmed corners are trimmed away — Pinterest shows board covers as a rounded-square thumbnail.
Zoom in and centre the key detail inside the rounded-square guide.
Need a square headshot instead? Use the image resizer instead.
How it works
Upload your photo
Drop in one image. Nothing is sent anywhere.
Frame it to the cover shape
Zoom and reframe so the key detail sits inside the rounded-square guide.
Download
Your resized 800×800 board cover downloads straight to your device, ready to set on Pinterest.
Built for real workflows
Runs entirely on-device
Resizing happens in your browser via the Canvas API. Your photo is never uploaded or stored.
Clean square output
Outputs at 800×800 (1:1) — a sharp square that holds up as a small board cover thumbnail.
Rounded-square crop guide
See exactly what gets trimmed away once Pinterest displays your image as a rounded-square cover.
Zoom to reframe
Zoom in and recentre any photo, portrait or landscape, so the key detail clears the rounded corners.
Keep the whole photo, or fill the frame
Letterbox to preserve every pixel, or crop to fill the exact square — your choice.
Multiple export formats
Save as JPG, PNG, or WebP, with an adjustable quality slider for smaller file sizes.
Frequently asked questions
What size should a Pinterest board cover be?
A square image at least 800×800 pixels works well — Pinterest crops your chosen photo into a rounded-square thumbnail on your profile and in board lists.
Why do you show a rounded-square overlay?
Pinterest displays board covers as a rounded square rather than a full square or circle. The dimmed corners mark what gets trimmed away, so you can keep important details inside the visible area.
Should I crop my photo or keep the whole thing?
Turning off "Fill frame" keeps every pixel of your original photo and adds letterboxing if the aspect ratio doesn't match. Turning it on crops the photo to exactly fill the 800×800 square with no bars.
Can I use a rectangular photo for a board cover?
Yes. Use the zoom slider to reframe a landscape or portrait photo into the square, centring the important part of the image inside the rounded-square guide.
Is my photo uploaded to a server?
No. Every resize happens locally in your browser using the Canvas API. Files never leave your device, so there's nothing to upload and nothing stored on our end.