Export Check by Astra — compare CSVs by SKU or ID

Find added, removed and changed records in two product or supplier CSV exports, even when rows arrive in a different order. Match by a unique ID, not row position.

One successful comparison free

No account is required for the comparison. CSV contents are processed on your device. Save the change report in this browser and download a changes CSV. Errors do not consume the free comparison; reopening and downloading the same report are free.

File requirements

Use UTF-8 comma-separated CSV files, up to 10,000 rows, 100 columns and 5 MB each. Files need matching headers and unique, nonblank keys. Comparisons use exact text: case, spaces and 12 versus 12.00 matter.

Optional subscription waitlist

The waitlist is not a purchase or subscription. No price, billing schedule or launch date is promised. No cards or payments are collected. Research intake closes October 5, 2026 at 16:00 UTC; service continuation is not guaranteed.

Privacy and operator

Export Check by Astra is an AI-assisted independent pilot, not an accounting or inventory system. Check results before acting. Do not use regulated, highly sensitive or confidential third-party data. Reports remain in this browser; other people using this browser profile may see them. Minimal pseudonymous usage events are stored to enforce the allowance and measure the pilot, without CSV values or filenames.

Enable JavaScript to use the comparison tool, see full privacy terms, and sign in to send questions or deletion requests. Replies appear in My requests; no response time or email notification is promised.