Stayput

↑↓ to move, Enter to open, Esc to close. Search runs on this page. Nothing you type is sent.

Facebook cover photo resizer

A cover photo at the proportions Facebook shows on computers, kept light enough to load quickly, made on this device.

Resize a photo to an 851×315 Facebook cover, saved as a JPG under 100 KB so it loads fast and looks sharp. It is free, needs no account and adds no watermark, and your files are not uploaded: everything runs in your browser on your device. The size limit is your device’s memory, and phones hold less; give the page a short while after one visit to save itself for offline use, and then it works offline.

Drop the cover photoor click to choose files. Batches welcome.
    Details

    The highest quality that fits is picked for each image; if even the lowest does not fit, the picture is made smaller.

    Working…

    Done

    Your files are processed on this device and never sent to a server. Reload the page to clear everything from memory.

    Facebook shows cover photos at 820 × 312 on computers and 640 × 360 on phones, and advises an sRGB JPG under 100 KB for the fastest loading. A normal photo is far taller than that wide strip, so without resizing Facebook asks you to drag it into place and still recompresses it heavily.

    This page makes a wide 851 × 315 cover cropped around the centre and saves it as a JPG under 100 KB at the best quality that fits. Phones show a squarer slice of the middle of the cover, so keep people and words away from the far left and right edges.

    The same cover works for a personal profile, a Page or a group header. For an event cover, 1920 × 1005 is the shape Facebook uses; type it into the fields and raise the limit to 500 KB.

    How it works

    1. Drop the photo.
    2. Keep Crop to fill for edge-to-edge, or pick Fit inside to add bars.
    3. Press Make the cover, then choose Edit cover photo on Facebook.

    In your browser, not on a server

    Resizing uses stepped downscaling on a canvas so text and edges stay sharp, and the browser encodes the result at the quality you choose. Everything happens in memory in your tab. Large batches are processed one image at a time so the page stays responsive on a phone.

    Compared with upload-based tools: Image compressors that upload your photos limit you to a few files, a small size, or a watermark until you pay. This one has no counter to reset because there is no server to keep one.

    Verify it yourself. Give the page a short while after one visit to save itself for offline use, then turn off Wi-Fi or switch to airplane mode and run the tool again. Or open your browser's developer tools (F12, or Cmd-Option-I on a Mac), pick the Network tab, and watch it while you convert. The panel above does the same count for you.

    Questions

    Why does my cover look blurry after upload?

    Facebook recompresses every upload to its own settings. Starting from a JPG that is already the displayed size and under 100 KB, as Facebook advises, leaves it less to squeeze, so less blur is added on top.

    Should the logo be a PNG?

    For a cover made of text and a logo on flat colour, switch Save as to PNG and raise the limit: flat graphics compress well as PNG and keep crisp edges.

    Does it change the photo’s colours?

    No. The pixels are resized and re-encoded; colours stay as they are. Photos in a wide-gamut profile such as Display P3 may look slightly muted on Facebook, which assumes sRGB.

    Can I use a video or slideshow as the cover?

    Pages can, personal profiles cannot. A video cover should run 20 to 90 seconds at 1080p or more; this page only makes still pictures, and the video resizer here can change a clip’s shape first.

    Is the file uploaded anywhere?

    No. There is no server in this process. The page is a static file and the work is done by code running inside your browser tab. Give the page a short while after one visit to save itself for offline use; then you can turn off Wi-Fi and it still works.

    More image tools

    Compress & Resize Images

    Make photos small enough to email or upload. Batch resize, set a quality, see the savings before you download.

    Color picker from image

    Point at any pixel to get its HEX, RGB and HSL code, and see the main colours of the picture. The image stays on this device.

    Image to text

    Get the words out of a photo, screenshot or scanned page, ready to copy. The image is read on this device and never uploaded.

    QR code generator

    For a link, your Wi-Fi, a contact card, an email or a phone number. The code is made on this page and works forever.

    Other conversions

    Guides