You need to shrink a photo from 4000 pixels wide to 800 for your website. Or resize a batch of product images to consistent dimensions. Image resizers are simple tools — but most still upload your photos first.
What We Compared
- Processing — server upload vs browser-local
- Batch support
- Aspect ratio lock
- Preset sizes — social media, print, web
- Format conversion during resize
- Free limits
- Privacy
The Comparison
| Tool | Processing | Batch | Aspect ratio lock | Presets | Format convert | Free limits | Privacy |
|------|------------|-------|-------------------|---------|----------------|-------------|---------|
| BrowserStay | Browser (local) | Yes | Yes | Custom px | Yes | None | Never uploaded |
| PicResize | Server upload | No | Yes | Social presets | Limited | Unlimited single | Uploaded |
| iLoveIMG | Server upload | Yes | Yes | Limited | Yes | Daily limit | Uploaded |
| BeFunky | Server upload | No | Yes | Many presets | Yes | Limited features | Uploaded |
| Birme | Browser (local) | Yes | Yes | Custom | Yes | None | Never uploaded |
| GIMP | Desktop | Yes | Yes | Custom | Yes | Unlimited | Offline |
| macOS Preview | Desktop (Mac) | Via export | Yes | Limited | Yes | Unlimited | Offline |
*Based on publicly available information as of 2026.*
Server-Upload Resizers
PicResize, iLoveIMG, BeFunky are popular for quick single-image resizing.
Strengths:
- PicResize has social media presets (Instagram, Facebook, Twitter sizes)
- BeFunky offers creative editing alongside resize
- iLoveIMG handles batch with format conversion
- No install required
Weaknesses:
- Photos uploaded to servers
- PicResize: one image at a time
- BeFunky: many features behind paywall
- iLoveIMG: daily task limits
Best for: Quick resize of public images, social media sizing.
Browser-Based Resizers
BrowserStay
Resize with aspect ratio lock, batch support, and optional format conversion.
Strengths:
- Never uploads images
- Batch resize with ZIP download
- Custom pixel dimensions or percentage
- Combine with compress and convert in one workflow
- No account, no limits
Weaknesses:
- No social media preset buttons (enter dimensions manually)
- Very large batches slower on older devices
Best for: Web optimization, client images, personal photos.
Birme
Browser-based batch resizer focused on width/height cropping.
Strengths:
- Fully local, batch support, free
- Good for consistent-width image sets
Weaknesses:
- Crop-focused (not just scale)
- Fewer output format options than full converters (JPG, PNG, WebP, AVIF)
- Basic interface
Best for: Blog image sets that need consistent widths.
Desktop Resizers
GIMP (free, cross-platform) and Mac Preview offer full control offline.
Strengths: Unlimited, offline, professional control
Weaknesses: Install required, steeper learning curve (GIMP)
Best for: Regular image editing workflows.
Common Resize Targets
| Platform | Recommended width |
|----------|-------------------|
| Blog post image | 800–1200px |
| Website hero | 1600–1920px |
| Instagram post | 1080×1080px |
| Instagram story | 1080×1920px |
| Email inline | 600px |
| Thumbnail | 300–400px |
| LinkedIn post | 1200×627px |
Resize Before You Compress
The biggest file size win isn't compression — it's removing pixels you don't need. A 4000px image resized to 800px is ~25x fewer pixels before any quality reduction.
Best workflow: Resize → compress → convert format (if needed). All three steps available in BrowserStay without uploading.
Try It Yourself
Resize images with our free Image Resizer — set dimensions, lock aspect ratio, batch process, download as ZIP. Pair with Image Compressor for a complete optimization workflow.
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