Nanivolt
How It Works — 3 Simple Steps
Select Your File
Click to browse or drag and drop your file. No account or signup required to get started.
Adjust Settings
Choose your quality or compression level. Preview the settings before processing your file.
Download Instantly
Your file is processed in seconds in your browser. Download the result immediately — no waiting.
Why Use Nanivolt?
100% Private & Secure
All processing happens in your browser using client-side technology. Your files never leave your device or touch our servers.
Lightning Fast
No upload time means instant processing. Start seeing results within seconds of selecting your file, even for large files.
No File Size Limits
Unlike competitors who cap files at 1–15GB, our client-side approach handles files of any size. Pro users get truly unlimited processing.
Adjustable Quality
Choose exactly how much to compress. Multiple quality levels let you balance file size against output quality for every use case.
Works on Any Device
Desktop, tablet, or mobile. Chrome, Firefox, Safari, or Edge. Nanivolt works anywhere without needing to install anything.
Genuinely Free
Our free tier is a real tool, not a demo. 5 files per day, no credit card, no time limit. Upgrade to Pro for unlimited access at just $8/month.
Simple, Transparent Pricing
Free
- 5 files per day
- 25MB max file size
- All 4 tools
- No signup required
- 100% client-side
Free Account
- 10 files per day
- 25MB max file size
- All 4 tools
- 7-day file history
- 100% client-side
Pro
- Unlimited files
- Unlimited file size
- All 4 tools
- Forever file history
- API access (1,000 calls)
- Batch processing (50 files)
- Priority support
More Free Tools
Frequently Asked Questions
Is PDF Compress Tool Online free?
Yes — completely free for up to 5 files per day with no signup required. Create a free account for 10 files/day, or upgrade to Pro ($8/month) for unlimited processing.
Do my files get uploaded to a server?
No. All processing happens entirely in your browser using client-side technology. Your files never leave your device, ensuring complete privacy and security.
Is there a file size limit?
Free users can process files up to 25MB each. Pro users ($8/month) have no file size limits whatsoever.
What browsers are supported?
Nanivolt works in all modern browsers: Chrome, Firefox, Safari, Edge, and mobile browsers on iOS and Android. No installation required.
How much does PDF compression reduce file size?
Depending on your chosen level: High Quality reduces by 30–40%, Balanced by 50–60%, and Maximum compression by up to 70–90%.
Will compression affect my PDF text or images?
High Quality and Balanced modes keep text and images crisp. Maximum compression reduces image quality inside the PDF but text remains readable.