Formatters & Code
Google Workspace Bulk User CSV Validator — Fix Upload Errors
Validate Google Workspace bulk user CSV imports locally. Catch header errors, invalid OU paths, license limits, and preview before-and-after account diffs.
Import mode & update scope
User spreadsheets & validation
1. Proposed User CSV (To Upload)
The spreadsheet you intend to upload to Google Admin Console (Max 35 MB, 150k users).
2. Current Tenant Export (Baseline)
Optional: Export from Google Admin (Directory → Users → Download users) to compare before & after.
Comparative Account Diff & Scope Review
Preflight Diagnostic Findings
AdminSheet User Studio 100% Private & Local
Inspect, search, and edit user attributes inline. Click any cell to modify values directly.
Results
What the result means
Google Workspace supports creating and updating employee accounts via CSV import, but the Google Admin Console rejects uploads with non-obvious syntax errors. This preflight validator parses your CSV locally to catch fatal upload blockers before you import. In Create mode, it verifies required user identifiers, password lengths, and leading forward slashes on Organizational Unit (OU) paths. In Update mode, it compares proposed updates against your baseline directory export to highlight high-risk status suspensions, OU relocations, and license modifications. It also detects unintended scope drift when edits affect columns outside your stated goals. All calculations run strictly in your web browser. Account passwords remain masked, and credentials are never transmitted over the network.
Related tools
Guides
Questions
Why does Google Admin Console say 'Unknown column' on my CSV upload?
Google Workspace strictly requires official bracketed column headers, such as First Name [Required], Email Address [Required], and Org Unit Path [Required]. If your spreadsheet uses simplified headers from an HR export (like First Name or Email), Google rejects the entire file. This tool automatically maps and normalizes your column headers to Google's official schema.
What is Google's 200-user limit for bulk license assignment?
While Google Workspace allows uploading up to 150,000 users in a single general CSV, it imposes a strict platform limit of 200 users per upload whenever assigning or updating license columns. If your file includes license SKUs for more than 200 users, this tool automatically partitions the data into separate 200-row batch files for sequential upload.
How does the update mode detect unintended scope drift?
When bulk updating user accounts (such as updating employee job titles or departments), unintended edits to Org Unit paths, statuses, or licenses can cause severe operational disruption. By selecting your intended scope and uploading a baseline export from Google Admin, this tool flags any unexpected modifications that fall outside your stated intent.
Are plaintext user passwords safe when checking bulk user CSV files?
Yes. All validation and comparative diffing execute entirely client-side using Web Workers in your local browser sandbox. Plaintext passwords are automatically masked with dots in the spreadsheet view, excluded from diagnostic audit exports, and never sent to external servers or logged in analytics.