Turn TopoJSON map files into CSV. It is converted in your browser, so the file never leaves your device.
Drop TopoJSON files here
or choose from your computer paste with Ctrl V
from Photos or Files
Ready · other file types work too0 bytes uploaded, ever
Drop TopoJSON files onto the box above, or click it to choose them. ToAny reads the file's contents to detect the type, so a wrong extension does not matter.
Press Convert. There is nothing else to set. The work happens in this tab.
Save the CSV, or download everything as one ZIP if you converted several files.
The TopoJSON to CSV converter is part of this page and runs inside your browser. Your map files are never sent to ToAny or to anyone else.
Nothing has to travel to a server and back, so the conversion starts the moment you press Convert, even on a slow connection.
No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.
TopoJSON needs a library to unpack it, and not every GIS tool reads it. CSV is plain text that every spreadsheet, database and script can read. TopoJSON is at home in compact boundary maps for the web; CSV is the usual choice for moving tabular data between systems.
Every format is read into plain GeoJSON features and written out from there, so coordinates, names and properties carry over wherever the target has a place for them. Every object in the topology is expanded back into ordinary shapes. Each point, and each vertex of a line, becomes one row with name, lat and lon columns, plus elevation and time when the data has them. Areas cannot be written as rows, so a file with polygons is refused. Text that starts with =, +, - or @ is escaped so a spreadsheet does not run it as a formula.
TopoJSON is an extension of GeoJSON that encodes shared borders once, as arcs, instead of repeating them in every neighbouring shape. Maps of countries or counties come out far smaller. Libraries such as D3 read it, and many general GIS tools need it converted first.
Opens in D3, Mapshaper, QGIS and web mapping libraries
TopoJSON converterCSV is a table written as text: one row per line, values separated by commas. Every spreadsheet and database can import and export it, but it holds one sheet only and no formatting, formulas or data types.
Opens in Excel, Google Sheets, Numbers, databases and any text editor
CSV converter| TOPOJSONTopoJSON map data | CSVCSV spreadsheet | |
|---|---|---|
| Stands for | TopoJSON | Comma-Separated Values |
| Type | Geographic data | Plain-text table |
| Compression | None (JSON text, topology-encoded) | None |
| Introduced | 2012, by Mike Bostock | The 1970s, by no single author (described in RFC 4180) |
| Opens in | D3, Mapshaper, QGIS and web mapping libraries | Excel, Google Sheets, Numbers, databases and any text editor |
| Best for | Compact boundary maps for the web | Moving tabular data between systems |
| File extension | .topojson | .csv |
No. The TopoJSON to CSV conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.
The values are kept. Anything CSV has no way to express, such as formatting, formulas or nesting, is simplified or left out.
Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.
The steps are the same everywhere because ToAny runs in the web browser: open this page in a current version of Chrome, Edge, Safari or Firefox, add the TopoJSON file, press Convert and save the CSV. There is nothing to install.
Yes. Files up to 150 MB are accepted; a larger file is refused with a message. Beyond that the limit is your device's memory, since nothing is uploaded; a computer copes with large files better than a phone.