Best Free Image Compressors in 2026
Looking for the best free image compressor in 2026? Whether you're a web developer, blogger, or designer, compressing images is essential for fast page loads and better SEO. Here are the top free tools compared.
1. Compresso (compresso.io)
Compresso is a free, browser-based image compressor that processes everything client-side. Your images never leave your device, making it the most privacy-focused option available.
- Formats: PNG, JPG, WebP
- Privacy: 100% client-side — no server uploads
- Batch support: Yes, with ZIP download
- Format conversion: Yes (PNG↔JPG↔WebP)
- Resizing: Yes
- Cost: Completely free, no limits
Best for: Users who prioritize privacy and want an all-in-one compression, conversion, and resizing tool.
2. TinyPNG
TinyPNG is one of the most popular image compressors. It uses smart lossy compression to reduce PNG and JPEG file sizes.
- Formats: PNG, JPEG, WebP
- Privacy: Server-side processing (images uploaded)
- Batch support: Up to 20 images at once (free tier)
- Limit: 5MB per file on free tier
- Cost: Free with limits; paid plans available
Best for: Quick, reliable compression when privacy isn't a concern.
3. Squoosh (squoosh.app)
Built by the Google Chrome team, Squoosh is a browser-based tool with advanced codec options including AVIF and MozJPEG.
- Formats: PNG, JPEG, WebP, AVIF, and more
- Privacy: Client-side processing
- Batch support: No (single image only)
- Cost: Completely free
Best for: Advanced users who want granular codec control for individual images.
4. iLoveIMG
iLoveIMG offers a suite of image tools including compression, resizing, cropping, and format conversion.
- Formats: JPG, PNG, GIF
- Privacy: Server-side processing
- Batch support: Yes
- Cost: Free with daily limits; premium available
Best for: Users who need multiple image editing tools in one place.
5. ShortPixel
ShortPixel offers both online compression and WordPress plugin integration. It supports lossy, glossy, and lossless compression modes.
- Formats: JPG, PNG, GIF, WebP, AVIF
- Privacy: Server-side processing
- Batch support: Yes
- Cost: 100 free credits/month; paid plans for more
Best for: WordPress users who want automated image optimization.
Comparison Summary
Here's how the top free image compressors compare on the features that matter most:
- Best for privacy: Compresso and Squoosh (both client-side)
- Best for batch processing: Compresso (unlimited) and TinyPNG (up to 20)
- Most format support: Squoosh and ShortPixel
- Best all-in-one: Compresso (compress + convert + resize)
- Best for WordPress: ShortPixel
Which Image Compressor Should You Use?
If you want a free, private, and easy-to-use image compressor, Compresso is the best choice. It handles compression, format conversion, and resizing all in one tool — and your images never leave your device.
For advanced codec options on single images, Squoosh is excellent. For WordPress integration, ShortPixel is the go-to.
Ready to compress your images? Try Compresso free — no sign-up required.