Nanofile
Compress files client-side — no uploads, no accounts, works offline
Free - Free to use — no account required, no watermarks, no daily limits; files are processed locally in the browser.
About Nanofile
nanofile is a free, browser-based file compressor that runs entirely in your tab so your files never leave your device. It supports 36 formats (images, PDFs, documents, audio, code), auto-detects formats (extension + magic bytes), handles batch jobs, provides an interactive preview with adjustable settings and a ZIP fallback, and achieves a ~55% median size reduction across formats. No sign-up, no watermarks, no server uploads — works offline after page load.
Key Features
- Client-side compression with zero uploads or servers
- Supports 36 formats including images, PDFs, documents, audio and code
- Batch processing with format auto-detection (extension + magic bytes)
- Interactive preview/compare, adjustable settings, and save locally or create ZIP
- No accounts, no limits, works offline after page load
Who is this for?
Designers, developers, content creators and privacy-conscious users who need to reduce file sizes locally
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FreeFree to use — no account required, no watermarks, no daily limits; files are processed locally in the browser.
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