What browsers are supported?

Chrome, Firefox, Safari and Edge (all recent versions). Any browser supporting WebAssembly will work.

Is there a watermark on converted LZMA files?

No. Free conversions produce clean output with no watermarks. Your LZMA file is identical to what a paid desktop tool would produce.

Yes! Chromebooks run Chrome browser, which fully supports Xonvert's WebAssembly-based conversion engine.

No — LZMA preserves quality losslessly. Your output will be faithful to the original.

Absolutely. Drag files directly from your file manager onto the converter area. You can also click to browse, or paste from clipboard.

Yes. The settings panel lets you control output quality, resolution and format-specific parameters. Default settings are optimized for best results.

LZMA is lossless, so quality settings primarily affect encoding speed rather than output fidelity. The default works perfectly.

Fast, free, and secure 7Z to LZMA conversion. No registration required.

Maintain maximum quality during conversion

Convert files in seconds with our optimized engine

Files automatically deleted after conversion

Click the "Select File" button to upload your 7z file from your device.

Click the "Convert" button to instantly start converting to LZMA.

Download your converted lzma file immediately after processing.