About
Compress.FAST is a bulk file compressor with smart algorithms for JPG, PNG, PDF, Word, and PowerPoint. Drop up to 1,000 files, watch real-time progress on each one, and download everything as a single ZIP.
Smart compression (native formats):
- Images: JPG, PNG — optimized with SOTA compression algorithms
- Documents: PDF, Word (DOCX), PowerPoint (PPTX) — intelligent size reduction
Auto-convert support (40+ formats):
Drop any of these formats and they'll auto-convert to optimized JPG or PNG:
- RAW Camera: Canon (CR2, CR3), Nikon (NEF), Sony (ARW), Adobe DNG, Fujifilm (RAF), Olympus (ORF), Panasonic (RW2), Pentax (PEF), and 25+ more
- Other Images: WebP, AVIF, HEIC, HEIF, GIF, BMP, TIFF, ICO, PSD
Key features:
- Smart compression: SOTA algorithms for JPG, PNG, PDF, Word, PowerPoint
- Per-file before/after slider: Visually verify quality on every file
- Bulk processing: Up to 1,000 files per batch
- Sub-second compression: 409ms median processing time (last 10k jobs)
- Single ZIP output: All compressed files in one download
- Optional resize: 4K, 1080p, 720p, or custom—works on images and embedded images in Word/PowerPoint
- No signup required: 50 free compressions daily
- Privacy-focused: EU servers, auto-delete in 1 hour
Who uses Compress.FAST:
- Web developers optimizing images for Lighthouse and Core Web Vitals
- Photographers converting RAW files to shareable JPG/PNG
- Office workers reducing PDF sizes for email attachments
- E-commerce teams optimizing product images
- Anyone compressing files in bulk
Pricing:
- Free tier: 50 compressions per day, no account required
- Pro and Business plans: Higher limits for teams processing at scale
Compress.FAST is part of the Tools.FAST network, focused utilities where each tool does one job well.