Free Online File Tools

17 tools

Convert spreadsheets, configuration files, contacts, and financial exports.

Convert structured files and exported data

Turn spreadsheets, configuration files, contact lists, and financial exports into formats that other applications can read. File conversion depends on the meaning and structure of the source, not just its filename. Check separators, field names, encoding, and dates before importing the output into another system.

Match the source format to the destination

Use YAML to JSON for structured configuration, CSV to Excel for spreadsheets, or Bank Statement Converter for supported financial exports. Inspect a small sample of rows and totals after conversion.

Common questions

Can I convert a file by changing its extension?

Renaming a file does not transform its contents. Use a converter that reads the source format and writes the format required by the destination.

Why does a CSV file appear in one column in my spreadsheet?

The import settings may expect a different separator. Check whether the file uses commas, semicolons, or tabs, and review its encoding. CSV to Excel can help prepare spreadsheet output.

Can I use a general JSON converter for a bank statement?

Financial exports contain format-specific fields and transaction structures. Choose Bank Statement Converter or a converter for the exact source format instead of treating the file as arbitrary text.

How do I move configuration data from YAML to JSON?

YAML to JSON reads the configuration structure and produces JSON output. Check types and nested values after conversion; YAML comments do not become ordinary JSON comments.