Useful tools, ready when you are.

Excel to JSON Schema

Convert Excel into JSON Schema locally, with explicit format controls, bounded validation, a reviewable preview when practical, and a separately named download.

Excel to NDJSON

Export one XLSX worksheet as independently parseable NDJSON records using stored cell results.

HTML Table to CSV

Extract one flat table from a local HTML file as formula-protected UTF-8 CSV.

HTML Table to JSON

Convert HTML Table into JSON locally, with explicit format controls, bounded validation, a reviewable preview when practical, and a separately named download.

HTML Table to NDJSON

Convert HTML Table into NDJSON locally, with explicit format controls, bounded validation, a reviewable preview when practical, and a separately named download.

ICS to CSV

Extract VEVENT properties into formula-protected CSV without expanding recurrence rules or changing time zones.

ICS to JSON

Project common VEVENT properties into stable JSON without expanding recurrences or changing time zones.

ICS to NDJSON

Convert ICS into NDJSON locally, with explicit format controls, bounded validation, a reviewable preview when practical, and a separately named download.

INI to CSV

Convert INI into CSV locally, with explicit format controls, bounded validation, a reviewable preview when practical, and a separately named download.

INI to JSON

Convert conservative INI assignments and one-level sections into a nested JSON object.

INI to JSON Schema

Convert INI into JSON Schema locally, with explicit format controls, bounded validation, a reviewable preview when practical, and a separately named download.

INI to NDJSON

Convert INI into NDJSON locally, with explicit format controls, bounded validation, a reviewable preview when practical, and a separately named download.