CSV Converter
Convert files to and from CSV online for free. Fast, secure, and high-quality file conversion with no sign-up or software required.
Maximum file size is 1GB
How it works
Three steps to your converted file
Everything happens in your browser tab - upload, pick a format, download. The heavy lifting runs on our servers.
Upload your file
Drag and drop, click to browse, or paste a URL. Batches take up to 20 files at once - 230+ input formats across video, audio, image, document, and archive types.
Choose an output format
Pick from over a hundred output formats. Filter by category or search by name - every option is open to everyone, no account needed.
Convert & download
Hit Convert and grab your download link moments later. Originals are erased when the job completes; results are cleared within about an hour.
What is a CSV file?
A Comma-Separated Values (CSV) file is a delimited text file format codified under RFC 4180 that uses commas to separate values and newlines to separate records. The format stores tabular data (numbers and text) in plain ASCII or Unicode text, where each line constitutes a data record with identical field sequences. It lacks a formalized schema for styling or formulas, relying solely on character separation for data structure, making it a standard for platform-independent data exchange between disparate database management systems (DBMS).
How to open a CSV file
Due to its plain text architecture, CSV files possess universal native support across all major operating systems. They can be viewed and edited using simple text editors like Microsoft Notepad or Vim, but are optimally managed with spreadsheet software such as Microsoft Excel, LibreOffice Calc, or Google Sheets, which parse the delimiters to render the data into columns.
CSV Technical Info
- Full Name
- Comma-Separated Values
- Developed By
- IBM (Fortran origin) / IETF
- Initial Release
- 1972
- MIME Type
- text/csv
Why RunConvert
The fastest way to convert any file
Purpose-built for speed, privacy, and breadth of format support.
3,000+ conversions supported
Every popular and niche format covered - video, audio, image, document, archive and more. New formats added regularly.
Fast, cloud-powered
No queue, no waiting. Files are processed on high-performance servers and returned in seconds, even for large files.
Secure & private
Encrypted in transit and never shared with anyone. Uploads are erased the moment your job completes, and results shortly after.
Free - no account needed
Convert without creating an account - no credit card, no trial clock. Sign in only if you want history and higher daily limits.