CSV, TXT & JSON Converter — Data & File Tools
Convert CSV, TXT, TSV, JSON and JSONL, process table data in bulk, split and merge files locally in your browser. Preview results and export ZIP, CSV, TXT and JSON.
CrazyFB Data & File Tools
Convert CSV, TXT and JSON, transform records in bulk, split files and merge multiple datasets directly in your browser.
1. Input data
Paste text or upload a UTF-8 file up to 6 MB. For file merging, upload multiple files in that mode. Up to 30,000 records per job.
2. Choose an operation
Each mode processes the original data independently; no external URLs are visited.
3. Preview & export
Preview may be truncated; downloads contain the full output. Split ZIP includes all parts. Quick CSV/TXT/JSON downloads export the full dataset.
Additional exports
4. Guide & FAQ
Data & File Tools transforms files but does not check websites, accounts or proxies.
Which formats are supported?
Quoted multiline CSV, TSV, TXT, JSON arrays and JSONL. Auto-detection can be ambiguous: select the format manually if needed.
Does JSON structure survive a CSV conversion?
Tables do not preserve JSON types. Nested objects and arrays become JSON strings, requiring type restoration if later converted back. Use JSON to retain data types.
How does CSV splitting work?
CSV is parsed into complete records before splitting by row count. Newlines inside quoted fields remain intact. You can repeat headers in every part.
What does merge by field name do?
It creates a union of the columns and aligns fields by their names. Missing fields become empty in table exports; review the output.
Why did CSV add apostrophes?
Excel safety is enabled by default. It prefixes formula-like values to prevent spreadsheet formula execution, changing the cell text. Disable for exact string round-tripping, and consider CSV risks.
What are the limits?
Up to 6 MB per file, 18 MB combined in merge, 30,000 records, 200 parts, and 24 MB per result/ZIP. Use dedicated desktop software for larger files.
Is any data sent to CrazyFB?
The tool’s own code processes values locally without uploading them. Other scripts on the AccsMall page have not been independently audited.