CSV/TSV: UTF-8, maximum 1 MB and 1,000 rows; 500 markers per map. Review the preview before importing.
Paste one address per line or spreadsheet rows. Plot previews structured data first. For headerless CSV or legacy pipe input, use Open Import Preview to choose the format.
Import Troubleshooting
If pasted data is not recognized automatically, open the import preview to identify its format and columns. Paste your data into the address box above, click Open Import Preview, then choose CSV, TSV, or Legacy pipe format. Review the rows and confirm plotting. Ordinary addresses need only one address per line and the Plot button.
Connect Google Sheet
One-way public source. Publish the selected tab using File > Share > Publish to web > CSV. This is different from anyone-with-link viewing. Published updates may take a few minutes. No private data: anyone can read the published source. Include a heading row and a stable unique source_id column. Edit connected marker fields in the sheet; save the map to persist the connection and refreshed data.