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HC2S: AuthKey and HEX:DC to Session+JSON or TData

A tool for preparing Telegram authorization data for practical output formats, backup workflows and organized batch processing.

HC2S ConverterAuthKey / HEX:DC → Session+JSON / TData
Input formats
AuthKeyHEX:DCDC:HEX
Output formats
SessionSession+JSONTData
StrengthReliable source processing
When to chooseMigration and controlled export
DownloadRequestVersionsBack to solutions
What this tool solves

What this tool solves

  • Accepts declared source formats and checks the structure before running.
  • Supports cold conversion and legacy compatibility.
  • Handles 2FA, proxy mapping, sorting and backups for batches.
  • Keeps logs, separates incorrect results and controls retries.
Technical advantages

Technical advantages

  • Multi-language support: RU / EN / ZH
  • Batch mode and processing queue
  • Source data backup
  • Legacy layer compatibility
Recent builds and release notes

Recent builds and release notes

Check the latest stable build, review changes and download the needed language build.

v.1.0February 18, 2026

Updated validation, sorting and backup scenarios for more stable batch work.

ENHC2S_Converter_v.1.0_EN.exeRUHC2S_Converter_v.1.0_RU.exeCNHC2S_Converter_v.1.0_CN.exe
v.1.0February 18, 2026Download
v.1.1February 18, 2026Download
v.1.2February 18, 2026Download
Common route names for this converter

Common route names for this converter

hc2s converterauthkey-to-hex:dc-to-session+json-to-tdatatelegram account convertersession json convertertdata converter