Avoiding a second compression pass
Upload a file sized for the placement and the published version stays closer to the one you checked. Feed, story and link preview crop differently, so judge them separately.
Facebook re-encodes every photo it accepts, and crops each placement from the file you upload. Sizing to the frame you are actually posting to here means the picture Facebook compresses is already close to its display size, rather than a large original it has to shrink and re-compress on your behalf.
Facebook compresses what it receives, and a very large original loses more in that pass than a file already sized for the feed. Resize first, then compare the posted result.
Per placement, yes. A square photo shown in a 4:5 or 16:9 slot loses its edges, so pre-crop to the ratio you are posting.
The result is downloaded as a separate file. Keep your original until you have checked the Facebook-ready image.
Open the Facebook-ready image in the application that consumes it and spot-check the parts that matter to you; the original file stays untouched if you need to re-run with different options.
Upload a file sized for the placement and the published version stays closer to the one you checked. Feed, story and link preview crop differently, so judge them separately.
Compare the Facebook-ready image with the original while both are fresh; destinations differ, and a quick check here saves a re-upload later.
Facebook compresses and crops uploads if your file is wrong. The Resize for Facebook pre-sizes images to Facebook image requirements so posts look crisp on every device.
Everything runs locally in your browser—files never leave your device. There is no account or watermark, and you can run multiple sessions without a daily quota. Open the page, upload, and download a ready-to-use image in seconds.
Supported formats depend on the page and are shown in its upload control; the standard resizer accepts JPG, PNG, and WEBP. You can lock aspect ratio, pick a preset, or type exact pixel values. Output quality is adjustable so you balance file size against sharpness before saving.
Tip: Start from the highest-resolution source you have. Downscaling preserves more detail than upscaling a small file.
For repeated tasks, bookmark the page or add it to your home screen on mobile. Settings stay visible so you can run the same dimensions on the next file without re-entering numbers.
These options load instantly because processing uses your device CPU rather than a remote queue. That keeps the tool responsive on shared Wi‑Fi and avoids upload timeouts on large originals.
Whenever Facebook image requirements is the goal, a browser resizer saves a trip through desktop editing software. You can enter the required dimensions directly, and each row redraws at the size that was written.
Export at the platform's recommended pixel size rather than relying on the site to scale down—upload-time compression is harder to control than your own quality slider.
When sharing resized images by email or chat, confirm the recipient app does not re-compress attachments. Check the downloaded dimensions and file size before sending, because recipient apps may apply another compression pass.
Bookmark this page for repeat jobs—settings stay on screen between uploads, which speeds up daily workflows for teams that resize images in batches.
Each placement—feed post, story, cover, or ad—has its own recommended pixels. This Resize for Facebook includes presets aligned with current Facebook guidelines. Check your analytics after posting; platforms sometimes recompress files, so starting with the correct size reduces quality loss.
Yes. It is free with no trial period, watermark, or hidden export fee. You can run multiple sessions for personal or commercial projects without signing in; each page shows its batch limit.
No. Processing happens in your browser using client-side JavaScript. Your files stay on your device, which makes it suitable for confidential documents, unreleased products, and personal photos.
Supported input formats depend on the page and are shown in its upload control. The standard browser resizer accepts JPG, PNG, and WEBP and exports JPG, PNG, or WEBP with adjustable quality.
Downscaling generally preserves sharpness because pixels are merged intelligently. Upscaling a tiny source will look soft—that is a limitation of any resizer. For best results, start with the largest original you have and scale down from there.
Yes. The interface is responsive on iOS and Android browsers. Upload from your camera roll, set dimensions, and save the processed image back to your gallery without installing an app.