BigXLDesktop
Big Files (50 GB+)⌘J Assistant (Local SLM)PII RedactionFeature ComparisonBlogPricing PlansSupport & FAQDownload Desktop App
Free Forever For Any File Size · No Account Needed

Download BigXL Desktop

Open 10 GB+ CSVs on your own machine. No sign-up, no credit card, and nothing ever leaves your computer.

macOS

Apple Silicon & Intel

macOS 12 Monterey or later · Apple Notarized

Download for macOS.dmg (Drag to Applications)

Windows

Windows 10 & 11

Windows 10 / 11 64-bit · Authenticode Signed

Download for Windows.msi Windows Installer

Linux

Ubuntu, Debian, Fedora, Arch

glibc 2.31+ (Ubuntu 20.04+ or modern distro)

Download for Linux.AppImage or .deb Package

Air-Gapped Privacy Verification: BigXL makes 0 external network requests. Verify anytime using network inspection tools like Little Snitch, LuLu, Wireshark, or standard OS firewalls.

All releases are cryptographically signed. All three platforms ship simultaneously.

Hardware & System Specs

Lightweight footprint on any machine.

Because BigXL uses disk-backed columnar streaming with memory caps, it comfortably handles 10 GB+ files even on basic laptop hardware.

ComponentMinimum SpecificationRecommended
Processor (CPU)64-bit x86 or ARM64Apple Silicon M-series or 4+ Core Intel/AMD
Memory (RAM)4 GB RAM8 GB - 16 GB RAM (BigXL uses ~120 MB constant)
Disk Storage500 MB for app & modelsFast NVMe SSD with room for temporary index
Internet ConnectionNone required (Air-gapped)None required (100% offline)

Free Forever vs Paid Tiers

Free does what Excel does. Paid does what it cannot.

Opening any size file, sorting, filtering, charting, and CSV export are free forever. Cleaning transforms, plain-English queries, and DuckDB SQL unlock in Pro ($49/yr).

Explore Pricing & Comparison