JA Technology Solutions
Universal File Converter
Convert between CSV, Excel, TSV, JSON, and delimited formats with smart auto-detection and Force Text columns.
Universal File Converter
A smart file converter that handles the edge cases other tools miss. Auto-detects delimiters, encoding, and header rows; handles ragged rows, embedded newlines, BOM characters, and mixed line endings. Force Text mode preserves leading zeros in ZIP codes, UPCs, and account numbers, and multi-sheet Excel files are supported. Convert between 30+ formats — CSV, TSV, JSON, XML, YAML, Excel, Parquet, Markdown tables, SQL INSERT, HTML tables, and more — with a live preview of the converted output before you download. Reorder, rename, or exclude columns during conversion when source and target structures differ. Runs entirely in your browser — your files never leave your machine.
Learn more ↓
Loading interactive explorer...
Why File Conversion Gets Complicated
File conversion sounds simple until you encounter the edge cases. CSV files may use commas, tabs, pipes, or semicolons as delimiters — and sometimes mix them. Fields containing the delimiter itself must be quoted, but not all producers quote correctly. Excel silently converts ZIP codes like 07024 to the number 7024, strips leading zeros from UPC codes, and reformats dates based on locale. Multi-sheet workbooks need sheet selection. JSON arrays may contain nested objects that need flattening. BOM (Byte Order Mark) characters cause invisible parsing failures. This tool handles all of these cases with smart auto-detection and a Force Text mode that preserves data exactly as it appears.
Common Conversion Pitfalls
The most dangerous conversion errors are the ones that look right but are not. A CSV opened in Excel and re-saved may lose leading zeros on account numbers, truncate long numeric IDs to scientific notation, or reformat dates from 2026-04-09 to 4/9/2026 depending on your system locale. Embedded newlines in quoted fields cause row misalignment in parsers that do not handle RFC 4180 correctly. Character encoding mismatches turn accented names into garbled text. This tool detects and handles these issues automatically, but awareness of them is essential for anyone working with data regularly.
When You Need an Automated Pipeline
This tool handles one-off conversions. For recurring data flows — daily vendor feeds, nightly ERP exports, weekly report distributions — a manual process invites errors and delays. I build automated ETL pipelines that ingest files in any format, apply validation and transformation rules, handle encoding and delimiter issues programmatically, and deliver clean output to downstream systems on a schedule. Learn about ETL and data pipeline development, explore integration services, or get in touch to discuss automating your data conversion workflows.
All tools run entirely in your browser. Your data never leaves your machine. Need help? Ask James.