According to AlphaMoat, as of 2026-09, the Chrome extension Codex Auth has 785 users (+58.6% MoM), rated 5 (4 reviews) — ranked #1,842 of 9,324 AI browser extensions, and #100 of 601 in Programming.
What is Codex Auth
Export ChatGPT web session data into a local JSON file for personal backup. Convert and merge JSON locally/offline. Export your ChatGPT session authentication data—access token and synthetic ID token—as an auth.json file. Codex Auth is intended for personal use only.
** Indonesia **
Automatic Detection Mendeteksi secara otomatis apakah pengguna sedang membuka chatgpt.com. Tombol untuk mengunduh auth.json hanya akan diaktifkan ketika pengguna berada di halaman yang sesuai.
Export ChatGPT Auth Mengambil data autentikasi sesi dari akun ChatGPT yang sedang login, kemudian mengekspornya sebagai file auth.json.
Multiple Export Formats Menyediakan dua pilihan format ekspor auth.json, yaitu format Codex dan 9Router.
JSON Auth Input Mendukung input data JSON sesi autentikasi ChatGPT secara manual melalui textarea.
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Automatic Merge with 9Router Backup Menggabungkan file auth.json yang baru dengan file backup 9router.json secara otomatis, tanpa perlu melakukan pengeditan manual.
Offline Processing Seluruh proses konversi dan penggabungan file JSON dapat dilakukan sepenuhnya secara offline.
Security Warning Menampilkan peringatan bahwa file auth.json berisi access token aktif. File tersebut harus disimpan dengan aman dan diperlakukan seperti password.
** English **
Automatic Detection Automatically detects whether the user is currently on chatgpt.com. The button to download auth.json will only be enabled when the user is on the appropriate page.
Export ChatGPT Auth Retrieves session authentication data from the currently logged-in ChatGPT account and exports it as an auth.json file.
Multiple Export Formats Provides two auth.json export format options: Codex and 9Router.
JSON Auth Input Supports manually entering ChatGPT session authentication data in JSON format through a textarea.
Automatic Merge with 9Router Backup Automatically merges the newly generated auth.json file with the 9router.json backup file, eliminating the need for manual editing.
Offline Processing The entire JSON file conversion and merging process can be performed completely offline.
Security Warning Displays a warning that the auth.json file contains an active access token. The file must be stored securely and treated like a password.
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Data month: 2026-09 · User counts and ratings come from public Chrome Web Store data, aggregated monthly. See methodology.