ReSizely

About

ReSizely is a powerful and user-friendly Chrome extension that allows you to quickly resize images directly in your browser. Built with the latest Manifest V3 and Side Panel API, it delivers professional functionality without uploading any data to the server.

Key Features:

Core Functions:
- Batch image resizing – resize multiple images at once
- Three processing modes:
  - Stretch – resize to exact dimensions
  - Fit – maintain aspect ratio with background padding
  - Crop – trim to fill the entire area
- Support for PNG, JPEG, WebP formats
- Adjustable quality settings for JPEG and WebP (1–100%)
- Maintain aspect ratio – auto recalculation based on set dimensions

Image Upload Options:
1. Drag & Drop – simply drop images into the upload area
2. File selection – use the system file dialog
3. Ctrl+V – paste images from clipboard
4. Context menu – right-click any image online to resize

Processing Settings:
- Background color selection (white, black, gray, or transparent) for Fit mode
- Add "_resized" suffix to filenames
- Save quality settings separately per format
- History of last 5 used sizes for quick reuse

Preset System:
- Quick presets for popular sizes (1080×1080, 1000×1000, etc.)
- Create and save your own presets
- Full preset management (add/edit/delete)
- Export/import presets to share settings
- Reset to built-in default presets

Export Options:
- Save images individually
- Download all resized images at once
- Copy to clipboard for quick use
- Show file size before and after processing

User Interface:

Light and Dark Themes:
- Choose between modern dark mode or clean light mode
- Stylish gradient backgrounds and adaptive layout
- Soft shadows, rounded corners, smooth transitions
- Automatically adapts to your system theme preference

Informative Display:
- Preview of all processed images
- Display original and resized dimensions
- Processing mode info
- File size before and after conversion

Technical Advantages:
- Local-only processing – everything happens on your device
- Privacy-first – images are never sent to any server
- Fast performance – powered by HTML Canvas API
- Reliable – all settings stored in Chrome Storage
- Fully compatible with modern versions of Chrome

How to Use:

Basic Workflow:
1. Click the extension icon to open the panel
2. Upload images using any convenient method
3. Set dimensions or choose a preset
4. Select processing mode and file format
5. Click “Resize All”
6. Save or copy results as needed

Advanced Capabilities:
- Create custom presets for frequent tasks
- Use context menu to resize images directly from websites
- Adjust image quality vs. file size balance
- Export settings to sync across devices

Who is this for?
- Web developers – quickly prepare images for projects
- SMM managers – optimize content for social media
- Designers – mockups, prototypes, and more
- Bloggers – lightweight images for posts
- Everyone – a handy everyday image tool

Privacy & Security:
- No personal data collected
- No server communication of any kind
- No login or account required
- Works entirely offline once installed
- Open source – code available for review

Updates & Support:
Actively developed and regularly updated. All user preferences and presets are preserved after updates.

Unique Features:
1. Side Panel integration – keep working without disrupting your workflow
2. Smart aspect ratio lock – auto adjusts other dimension accordingly
3. Size history – remembers your most used image sizes
4. Custom filename suffix – control output naming
5. Transparency support – preserves alpha channel in PNGs

Supported Operations:
- Resize by width and height
- Convert formats (PNG ↔ JPEG ↔ WebP)
- Quality optimization (1–100%)
- Crop images
- Add padding background
- Batch processing
- Preserve original filename metadata

Bonus Features:
- Toast notifications – instant feedback on actions
- Drag & drop highlighting – upload area visual cues
- Adaptive design – fits different panel sizes
- Keyboard shortcuts – Delete to remove selected images
- Auto-size placeholders from first uploaded image

ReSizely is more than just a resizer – it's a complete browser-based image processing solution. Install the extension and experience how simple and effective it can be!