Check your files before moving them to SharePoint or OneDrive.

Find invalid filenames, reserved names, path-length problems and common migration blockers before you upload anything.

100% localRead-onlyNo Microsoft loginNo files uploaded

Run a local preflightNo account required.

Surface invalid characters, reserved names, leading/trailing spaces and other known filename risks.

Include your future SharePoint or OneDrive destination prefix when checking path length.

Every finding is explained in plain language so remediation is straightforward.

Don't discover migration problems halfway through the move.

Local Preflight checks your folder structure before a migration tool, tenant connection or upload is involved.

Your browser only receives the filenames and relative paths you explicitly select. This page does not upload them anywhere.

1. Select a local folder

Note: empty folders are not exposed by the browser folder picker, so only folders that contain at least one selected file can be checked.

2. Optional destination prefix

0items scanned

0potential blockers

0affected items

0items with no flagged issue

Unlock the full findings list, CSV export and future V1 updates.

One-time payment. No subscription. Checkout is handled by Lemon Squeezy.

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