The Bulk File Compressor
Compress images, PDFs, and docs without losing quality.
Drop up to 50 files at once — no install, no sign-up required.
Drop Files to Compress
Encrypted EU Servers Auto-delete 1h
How it works
Drop your files
Drop up to 50 files. No account required.
Supports 40+ formats:
We optimize carefully
Get optimized files
Download individually or as a single ZIP.
Frequently Asked Questions
Are my files private and secure?
Absolutely. All files are encrypted in transit (TLS 1.3) and at rest (AES-256), processed exclusively on EU servers, and automatically deleted after 1 hour. We never share your files with third parties.
Will compression break my files or reduce quality?
No. Images are optimized without visible quality loss. PDFs remain fully searchable with working links and fillable forms. Word and PowerPoint files stay fully editable with formatting preserved.
Is Compress.FAST free to use?
Yes, you get 50 free credits per day (1 credit per file). No credit card required. Paid plans are available for users who need higher limits and faster processing.
Do I need to create an account?
No. Start compressing immediately—no sign-up required. Creating a free account unlocks higher daily limits and lets you track your compression history.
What file formats are supported?
Over 40 formats including:
Images: JPG, PNG, WebP, AVIF, HEIC, GIF, TIFF, BMP, ICO, PSD + 26 RAW camera formats
Documents: PDF, Word (DOCX), PowerPoint (PPTX)
What are the file size and batch limits?
| Tier | Max File Size | Max Files/Batch | Parallel Jobs |
|---|---|---|---|
| Guest/Free | 25 MB | 50 files | 3 at once |
| Pro | 200 MB | 200 files | 6 at once |
| Business | 1 GB | 1000 files | 10 at once |
Note: Batch and parallel processing limits apply site-wide across all compressors.
What are my daily and monthly credit limits?
Credit allocations vary by account tier:
| Tier | Credits | Reset |
|---|---|---|
| Guest | 50/day | Midnight UTC |
| Free | 50/day | Midnight UTC |
| Pro | 10,000/month | Billing cycle |
| Business | 30,000/month | Billing cycle |
Note: With 1 credit per file, Guest/Free users can compress 50 files per day. Pro users can compress 10,000 files per month.
Answers at a Glance
Quick answers to common questions.
- Are my files secure?
- How long do you keep my files?
- What metadata do you keep?
- What happens after I drop a file?
- Why is compression so fast?
- How do you measure performance?
- What are the exact limits for each plan?
- Can I compress files in bulk?
- Why did my file fail to compress?
- Do you use my files to train AI?
Choose Your Plan
One subscription unlocks the entire Tools.FAST Network. Plans cover Compress.FAST, Convert.FAST, PDF.FAST (soon), and all future tools.
Free
For occasional personal use
- 25 MB per file
- 50 files per batch
- 3 parallel jobs
- 50 credits/day
- Standard priority
- Email support
No sign-up required. Create an account for your own credit pool.
Pro
For independent work
- 200 MB per file
- 200 files per batch
- 6 parallel jobs
- 10,000 credits/month across Tools.FAST
- High priority
- Email & chat support
- One subscription for the entire Tools.FAST network
Business
For production scale
- 1 GB per file
- 1000 files per batch
- 10 parallel jobs
- 30,000 credits/month across Tools.FAST
- Add seats to invite team members
- Highest priority
- Priority email & chat support
- One subscription for the entire Tools.FAST network
How Credits Work
- Usually 1 credit per file. Exact cost shown before you start.
- Credits refresh monthly on your billing cycle.
- Unused credits roll over, capped at your plan's monthly amount.
- One subscription, all sites. Works across Compress.FAST, Convert.FAST, and future tools.