Image Resizer – Resize, Convert & Optimize by Unifybrowse
Resize, convert and compress images locally. Includes focal-point cropping, target file sizes, presets and batch ZIP downloads. Your images stay on your device.
Some features may require paymentSome features may require payment
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About this extension
Resize, convert and compress images directly in Firefox. Your images are processed locally on your device and are never uploaded for processing. No account is required to use the free features.
FEATURES
• Precise resizing — Set custom width and height dimensions with an optional aspect-ratio lock.
• 22 ready-made presets — Prepare images for social posts, video thumbnails, profile pictures, banners and more.
• Three resize modes — Choose Stretch, Fit or Crop with a live preview.
• Focal-point cropping — Use nine positioning options to keep the important part of your image visible.
• Target file size — Automatically adjust JPG or WebP quality toward your chosen file-size limit.
• Format conversion — Export JPG, PNG or WebP images.
• HEIC and HEIF input — Open supported iPhone photos using a locally bundled decoder.
• Custom backgrounds — Choose white, black, transparent or a custom HEX color in Fit mode.
• Batch processing — Resize multiple images and download the results together as a ZIP.
• Saved profiles — Save your preferred settings for repeated tasks.
• Convenient import — Use drag and drop, the file picker or clipboard paste.
• Light and dark themes.
FREE AND PRO
The free version has no trial period. It includes all 22 presets, resizing, cropping, focal-point positioning, format conversion and target-size compression, with up to five images per batch and three saved profiles.
Optional Pro is a one-time purchase with no recurring subscription. It unlocks multi-preset Export Packs, removes the five-image batch limit and increases saved profiles to 20.
PRIVACY
Image processing stays on your device. Optional Pro activation and validation communicate with our license service.
The extension also opens UnifyBrowse welcome, update and uninstall pages with a randomly generated installation identifier and extension version. See the privacy policy for details.
Requires Firefox 142 or later.
Made by UnifyBrowse.
Website: https://unifybrowse.com/
Support: support@unifybrowse.com
FEATURES
• Precise resizing — Set custom width and height dimensions with an optional aspect-ratio lock.
• 22 ready-made presets — Prepare images for social posts, video thumbnails, profile pictures, banners and more.
• Three resize modes — Choose Stretch, Fit or Crop with a live preview.
• Focal-point cropping — Use nine positioning options to keep the important part of your image visible.
• Target file size — Automatically adjust JPG or WebP quality toward your chosen file-size limit.
• Format conversion — Export JPG, PNG or WebP images.
• HEIC and HEIF input — Open supported iPhone photos using a locally bundled decoder.
• Custom backgrounds — Choose white, black, transparent or a custom HEX color in Fit mode.
• Batch processing — Resize multiple images and download the results together as a ZIP.
• Saved profiles — Save your preferred settings for repeated tasks.
• Convenient import — Use drag and drop, the file picker or clipboard paste.
• Light and dark themes.
FREE AND PRO
The free version has no trial period. It includes all 22 presets, resizing, cropping, focal-point positioning, format conversion and target-size compression, with up to five images per batch and three saved profiles.
Optional Pro is a one-time purchase with no recurring subscription. It unlocks multi-preset Export Packs, removes the five-image batch limit and increases saved profiles to 20.
PRIVACY
Image processing stays on your device. Optional Pro activation and validation communicate with our license service.
The extension also opens UnifyBrowse welcome, update and uninstall pages with a randomly generated installation identifier and extension version. See the privacy policy for details.
Requires Firefox 142 or later.
Made by UnifyBrowse.
Website: https://unifybrowse.com/
Support: support@unifybrowse.com
Rated 0 by 0 reviewers
Permissions and data
Required permissions:
- Access your data for ir.unifybrowse.com
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 1.0.0
- Size
- 1.15 MB
- Last updated
- 13 days ago (Oct 31, 2026)
- Related Categories
- License
- All Rights Reserved
- Privacy Policy
- Read the privacy policy for this add-on
- Version History
- Add to collection
Images are resized, cropped and converted locally on your device. Export formats are JPG, PNG and WebP.
Target file-size compression is available for JPG and WebP. Achievable file sizes depend on the image and selected dimensions. Large images and batches may require more memory.
For help or bug reports, contact support@unifybrowse.com. Please include your Firefox version, input image format and any error message.