Free Online Compression Tools
Updated on 2025-09-15 · Free · Client-side
Compress PDF and Images online — fast, private, and easy. Works directly in your browser.
✅ Free Forever
⚡ Ultra-Fast
Private — No Uploads
Batch Processing
📄 Compress PDF
Reduce PDF file size instantly while keeping quality.
️ Compress Images
Optimize JPG, PNG, JPEG, WebP, and more formats.
🖼️ Convert HEIC
Convert HEIC to JPG, PNG, WebP, or PDF — in your browser.
How to Use CompressTools
1. Select a Tool
Choose PDF or Image compression.
2. Upload Files
Drag & drop or choose files from your device.
3. Automatic Compression
Files are optimized instantly in your browser.
4. Download Results
Download compressed files individually or all together in a ZIP.