Session or Session+JSON to TData

– Updated and expanded lists of devices and application versions for all categories.
– Fixed some UI setting and bugs.
– Added option to choose dedicated language when creating new account’s session

Fixed error saving bad 2FA accounts to dedicated folder ‘_Bad_2FA_Session’

Fixed issue with ‘2FA.txt’ creation when new session mode is selected.

Completely removed old libs from account connecting logic and as the result improved account connection logic.
Improved proxy checking logic.
Updated and expanded lists of devices and application versions for all categories.
Fixed some UI setting and bugs.

Added:

Added offline mode convert SESSION+JSON to TDATA (no online connection to account).
Added automtic choosing language basen on it’s phone number.
Added frozen account errors catching logic.
Added option to save either new Telethon session or keep compatibility with the old one. Current Layer is 221.
Added compatibility with pair “16623:8c9dbfe58437d1739540f5d53c72ae4b” and “611335:d524b414d21f4d37f08684c1df41ac9c”.
Added task timeout setting, where user can set timeout for the staskt started to avoid long waiting in case account got stuck. Default is 30 sec.

Note: After 01 Mar, 2026 versions under 2.3 will not be supported. Make sure to download latest version to get maximum performance.

History of Changes:

S2TD Converter v.2.2
01.04.2025
Added option to manually set delays between starting threads in advanced settings.
Updated and expanded device and application version lists for all categories.

S2TD Converter v.2.1
18.03.2025
Added manual setting for number of connection attempts and waiting delays per account.
Added function to save SESSION+JSON files for new sessions — essentially re-authentication from SESSION+JSON to SESSION+JSON.
Added ability to choose different official api:hash values for auto-login modes for both new and old sessions.
Added ability to terminate existing sessions for an account.
Added ability to set custom ‘tz_offset’ parameter.
Added original session name to the log.
Added sorting of accounts that failed to connect due to timeout into a dedicated folder.
Updated and expanded device and application version lists for all categories.
Improved task stopping process.
Enhanced detection of broken (dead) accounts.
Fixed some translation errors.
Minor UI adjustments.

S2TD Converter v.2.0
25.09.2024
Added ability to choose different official api:hash values for auto-login modes for new and old sessions.
Improved account connection mechanism.
Added sorting of accounts that failed to connect due to timeout into a separate folder.
Fixed some translation errors.

Important:
After October 15, 2024, S2TD versions below v.1.9 will no longer be supported. Ensure you are using only the updated version.

S2TD Converter v.1.9
16.09.2024
Added support for Pyrogram session, session, or session+json formats.
Added original session name to the log.
Updated and expanded device and application version lists for all categories.
Significantly reduced application size for improved performance and smoother operation.
Improved session connection process to enhance account stability.
Minor UI changes.

S2TD Converter v.1.8
12.05.2024
Fixed error in returning previous manual settings.
Fixed error of saving duplicate session after conversion.
Other minor fixes.

S2TD Converter v.1.7
21.04.2024
Added option to restore previous settings.
Added program update check functionality.
Updated device lists for all categories.
Updated connection engine for accounts, improving stability after conversion.
Fixed skipping of first 2 accounts during conversion if folder creation fails.
Fixed 2FA disappearing during conversion with sessions only (no .json).
Fixed incompatibility with some .json files.
Other minor fixes.

S2TD Converter v.1.6
05.11.2023
Added multi-threaded operation.
Updated list of Telegram application versions.
Improved error detection process.
Minor UI adjustments.

S2TD Converter v.1.5
17.08.2023
Added ability to use device parameters from .json file.
Added ability to create a new session or keep the old one.
Minor UI changes.

S2TD Converter v.1.4
26.04.2023
Significant changes to the user interface.
Full translation into Russian.
Added option to work without proxy.
Added ability to use custom device parameters.
Improved error handling during connection to broken sessions.
Added export of 2FA to a separate file placed alongside tdata.
Updated app_vers list.

S2TD Converter v.1.3
08.03.2023
Fixed error exporting 2FA from .json file when it is missing as a variable.

S2TD Converter v.1.2
Improved thread launch.
Improved proxy connection handling for each account.
Improved log export (some character errors were fixed).
Minor UI fixes.

S2TD Converter v.1.1
06.11.2022
Added function to sort good and bad sessions into separate folders.
Added function to display proxy used for each account in the log.
Fixed thread launch — no more program hangs with large number of sessions.

S2TD Converter v.1.0
27.10.2022
First release.