Developer toolbox

Online Data Converters for Developers

Convert dates, JSON, YAML, TOML, tables, and numeric bases with local browser tools. Each tool is focused on one common development task and is available without an account.

Converters

Choose a tool

5 tools
Cron Expression ParserValidate cron syntax and predict upcoming execution times across common schedules.Open tool →Date & Timestamp ConverterConvert time zones, Unix timestamps, and relative dates with a clear browser tool.Open tool →JSON to Table ConverterView JSON as a table and export structured data to CSV in your browser.Open tool →JSON to YAML & TOML ConverterConvert JSON between YAML and TOML configuration formats with local processing.Open tool →Number Base & Radix ConverterConvert between common numeric bases, RFC 4648 encodings, and custom alphabets.Open tool →

Conversions preserve intent only when types are explicit

Date, JSON, YAML, TOML, table, and radix conversions bridge formats that do not share the same type and timezone rules. A successful conversion should be validated with the target loader before it becomes configuration or operational data.

Record the assumptions

Keep units, timezones, alphabets, delimiters, and nested-value rules next to the converted result. This prevents a value that looks correct in a preview from being misread by another system.

  • Specify Unix seconds versus milliseconds and keep the original timezone.
  • Review nested JSON and quoting before exporting CSV, YAML, or TOML.
  • Use the scheduler's exact cron dialect when previewing execution times.

Browse all developer tools or read the developer tool guides for practical examples.