Convert Files
← BackFast, secure file conversion for CSV, JSON, and XML — no installs, no scripts, no headaches.
Web application designed to help you convert files CSV ↔ JSON, CSV ↔ XML, and JSON ↔ XML quickly and easily, without complex tools or costly software. Perfect for developers, analysts, and anyone who needs clean, compatible data formats.
What You Can Do
📂 Upload Files Securely
- Upload CSV, JSON, or XML files
- Files are processed securely and temporarily
- Preview the first few rows before converting
- No software to install, works in your browser
🔄 Convert Between File Formats
- Convert CSV ↔ JSON, CSV ↔ XML, and JSON ↔ XML
- Available conversions are automatically detected
- Handles nested JSON and structured XML
- Preview the converted output before downloading
- Avoid broken imports in Excel, databases, and APIs
📥 Download Cleaned Files
- Download your freshly processed file instantly
- Original file name preserved with timestamp
- Your original file is never modified
- Processed files are generated on demand
Why Use This Tool?
- Fast – convert files in seconds
- Smart – format detection & structured parsing
- Private – files are processed temporarily
- No setup – works directly in your browser
- No expensive software – pay only if you need larger files
How It Works
- Upload your file – Upload your CSV, JSON, or XML file.
- Preview & choose conversion – We automatically detect supported conversions.
- Download the converted file – Instant download, original filename preserved.
💳 5. Credits & limits
- Maximum Size allowed is per file 5MB
- Maximum Rows allowed per file is 50 000
- Maximum columns allowed per file is 200
- JSON Maximum depth is 5
- JSON Maximum array items is 500
- Files with 100 rows or fewer are free
- Files with more than 100 rows require credits
- One credit is used per 1000 rows processed
- Credits are only deducted when processing succeeds
🔐 6. Privacy & security
- Files are processed securely
- Temporary files are deleted automatically
- We never store your files permanently
- Your original file is never changed