Account File Checker Online
Inspect TXT/CSV file structure, map ID, login, password, email, cookies and 2FA columns, and find duplicate values, missing fields and separator errors. Download sanitized reports.
Account File Checker — inspect account file structure
Check TXT/CSV files with ID, login, password, email, cookie, and 2FA columns. Find empty fields, incorrect separators, malformed records and duplicates without exposing secret values in reports.
1. Input file and delimiter
Upload a UTF-8 TXT/CSV file or paste data. Use the safe built-in example first. Field values are not shown in diagnostic panels.
2. Column schema and mapping
Choose the source column for each field. Optional fields can be skipped. Automatic detection is a suggestion; verify the mapping before analyzing large files.
3. Diagnostics results
This is local structural validation only. No Facebook login, account requests, ban detection or advertising status checks.
Row findings
Mapped field coverage
4. Download sanitized report
Reports contain only row numbers, field types, diagnostic codes, and counts. They DO NOT include raw rows, IDs, logins, passwords, emails, cookie values or 2FA secrets.
5. How to use & FAQ
How do I check an ID|PASSWORD|COOKIES|EMAIL|NAME file?
Click “Example file” and then “Check file”. For your own TXT file, leave automatic delimiter detection, choose the five-column preset and inspect the results. For a different order, map the columns manually.
What about custom TXT/CSV files?
If the first row contains column names, keep automatic header detection. Otherwise use a layout preset or choose columns manually. You can set a delimiter explicitly; an obviously wrong delimiter is blocked.
Do passwords or cookies appear in reports?
No. The tool generates only counts, diagnostic codes and row numbers. Input values remain in the text field and browser memory until cleared or the page is closed.
Does it check password validity, Facebook sessions or actual 2FA codes?
No. It checks field presence, basic syntax, cookie-like structure and possible Base32 patterns. It does not contact Facebook or perform sign-in or TOTP verification.
Can other scripts on the website access input?
Account File Checker itself makes no network requests and does not store submitted files. However, scripts injected by the website platform may be able to read page contents. A full independent audit of the page environment has not been performed.
Does it support quoted CSV fields with embedded line breaks?
Yes. Standard double-quote escaping and line breaks inside quoted values are handled. Always review the results for your own file layout.
Why does it flag repeated email or ID values?
A repeated mapped value may indicate a duplicate record. Only the row numbers are shown, not the repeated value.