Squeeze every pixel
without losing the picture
Compress PNG, JPEG, WebP, and HEIC images by 40–90% with batch processing, format conversion, and side-by-side quality comparison. No uploads, no server — everything runs in your browser.
CrunchPix is a free browser-based image compressor that reduces PNG, JPEG, WebP, and HEIC file sizes by 40–90% without uploading anything to a server. All processing runs locally in your browser using the Canvas API. It supports batch compression, format conversion between 4 input types and 3 output formats (JPEG, PNG, WebP), a quality slider from 1–100, and a side-by-side comparison view so you can check the result before downloading. Files up to 50 MB are supported on the free tier.
Everything you need to squeeze smarter
A professional image compression toolkit that keeps your files on your device and works offline.
Batch Compression
Drop multiple images at once and compress them in parallel. Typical savings of 40–90% per image, depending on format and quality setting.
Format Conversion
Accepts 4 input formats (JPEG, PNG, WebP, HEIC) and exports to 3 output formats. Drop iPhone HEIC photos and convert them to JPEG, PNG, or WebP.
Side-by-Side Compare
Adjust the quality from 1–100 and drag the slider to compare original vs. compressed. Most images look identical at 70–80 with major size savings.
No Uploads
Your images never leave your device. All processing runs locally in your browser using the Canvas API — zero server uploads, even for files up to 50 MB.
How it works
Three steps. No upload. Just smaller images.
Drop your images
Drag-and-drop or pick files. Supports PNG, JPEG, and WebP. Batch upload as many as you want.
Adjust & compress
Set your quality level and output format. Hit compress and watch the savings stack up in real time.
Download squeezed files
Download individually or grab a ZIP of everything. Files never leave your browser.
Pricing
Free to use. Pro to power through. Cancel anytime.
Prices shown exclude applicable taxes.
Free
- Unlimited compressions
- JPEG, PNG, WebP output
- Quality slider control
- Side-by-side comparison
- Single file at a time
Pro
- Everything in Free
- Batch compression (unlimited files)
- ZIP batch download
- Resize options
- Ad-free experience
- Cancel anytime
Crate Pass
- All Cashew Crate apps
- Everything in Pro
- No ads anywhere
- New apps added regularly
- Cancel anytime
Before you subscribe
What you get: CrunchPix compresses images (JPEG, PNG, WebP) entirely in your browser. Your files never leave your device.
Pricing: $3/month for this app (cancel anytime), or $15/month for Crate Pass (all apps). Prices shown exclude applicable taxes.
Support: [email protected]
Frequently asked questions
Are my images uploaded to a server?
No. CrunchPix processes everything locally in your browser using the Canvas API and Web Workers. Your files never leave your device — not even temporarily.
What image formats are supported?
You can upload PNG, JPEG, WebP, and HEIC images. HEIC files (common on iPhones) are automatically converted so you can output them as JPEG, PNG, or WebP. You can also convert between any of the other formats during compression.
How much can images be compressed?
Results vary by image type and quality setting. Typical savings range from 40-90%. Photos (JPEG/WebP) compress very well; PNGs with transparency compress less aggressively to preserve quality.
What's the difference between Free and Pro?
Free gives you unlimited compressions with all core features — one file at a time. Pro unlocks batch compression (unlimited files), ZIP downloads, resize options, and an ad-free experience.
Can I compress images offline?
Once the page is loaded, compression works entirely in your browser. If you lose internet mid-session, your compression will still complete. You just need internet to load the page initially.
What happens to image quality?
You control the quality with a slider (1-100). Use the side-by-side comparison to check the result before downloading. Most images look identical at 70-80% quality with massive size savings.
Ready to squeeze?
Drop your images and watch the bytes melt away. Free, private, instant.
Start Compressing