Convert Files to Any Format
in Seconds
Free File Format Converter Online – CSV, JSON, TXT
File Format Converter
Convert between CSV, JSON, and TXT data files
This tool converts data files (CSV/JSON/TXT) into each other. For images, use the "Image Converter" tool instead.
What is a File Format Converter?
A file format converter is a tool that changes a data file from one structure to another — for example turning a spreadsheet exported as CSV into JSON for a developer, or converting JSON API data into a readable CSV for Excel. Instead of writing code or installing software, this free online converter does it instantly, right inside your browser.
How It Works
- Choose your file (.csv, .json, or .txt).
- Select the format you want to convert it to.
- Click “Convert & Download.”
- Your converted file downloads immediately — no email, no waiting.
✅ Key Benefits
- 100% private — files never leave your browser or touch a server.
- No signup, no email required.
- Instant conversion — no waiting in a queue.
- Free, unlimited use.
✅ Who Uses This Tool
- Developers turning API responses (JSON) into CSV reports for non-technical teammates.
- Data analysts cleaning up exported CSV files before importing them into other systems.
- Students and researchers converting raw data for spreadsheets or presentations.
- Small business owners moving product/customer data between tools that expect different formats.
Frequently Asked Questions (FAQs)
Is this file converter free? Yes, completely free with no limits on how many files you can convert.
Is my data safe? Yes. All conversion happens locally in your browser — your file is never uploaded to any server.
What file types are supported? Currently CSV, JSON, and TXT. For images, use our Image Converter instead.
Do I need to install anything? No, it works directly in any modern browser on desktop or mobile.
Is there a file size limit? Very large files (tens of thousands of rows) may be slower since everything runs in your browser, but typical files convert instantly.