CSV to ASC Converter: Free & Online
Convert .CSV datasets into .ASC point cloud files, reinterpret rows as XYZ coordinates, and output clean survey-ready data in one app.
- Free
- No sign-up
- No install
Open .csv → Export → choose .asc
Click Open Files and pick your .csv file. Then click Export, choose .asc in the Extension list and click Save.
How to convert CSV to ASC
Open your .csv file
Click Open Files in the converter above and pick the file on your computer. It opens in your browser as a point cloud, with no sign-up.
Export as .asc
Click Export and choose .asc in the Extension list.
Save the file
Click Save. The .asc file downloads to your computer.
In the desktop app
- Open the point cloud. Click Open Files and pick the .csv file.
- Export as .asc. Select the point cloud, click Export and choose .asc.
- Save. Pick a folder and save the .asc file.
What to know about CSV → ASC
- A CSV point file has one point per row, with the coordinates separated by commas.
- An ASC point file is plain text with the X Y Z coordinates of one point per line.
- Points stay points: MeshInspector opens the cloud and exports it as .asc without building a mesh.
Online or desktop
Online
The converter on this page runs the MeshInspector web app in your browser: no install, no sign-up. It suits single files; the web app works within your browser's memory.
Desktop
The desktop app runs on Windows, macOS (Apple silicon) and Linux. Use it for large files, many files, and the tools the web app does not have. The free Community plan covers opening and exporting; see Pricing for what the paid plans add.
FAQ
Do I need an account to convert CSV to ASC?
No. The converter on this page is the MeshInspector web app running in your browser without sign-up. Click Open Files and pick your .csv file, select it in the scene list, click Export, choose .asc in the Extension list and click Save. The converted file downloads to your computer.
Is the CSV to ASC converter free?
Yes. Opening a .csv file and exporting it as .asc use free tools, here, in the web app and in the desktop app on the free Community plan. Paid plans add tools such as Mesh Healer and automatic repair; the Pricing page lists what each plan includes.
Are colors and units kept?
ASC stores only the coordinates of the points as plain text: no units, no mesh and, in its simple form, no colors. Check the scale of the points after conversion, and keep the source file if you need its colors, intensity or other attributes later.
Is there a file size limit?
There is no fixed limit on this page, but the web app works within your browser's memory: up to about 4 GB, or 16 GB in browsers with 64-bit WebAssembly. For very large models, or many files, use the desktop app for Windows, macOS or Linux.
