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Torch Object Storage

TOS Browser

Installing TOS Browser

This topic covers where to download and how to install and upgrade TOS Browser.

Downloading TOS Browser

Operating system	Version	Installation package
Windows	Windows 7 Pro SP1 64-bit Windows 10 Pro 64-bit Windows Server 2016 standard 64-bit	TOS Browser-win64
macOS	Mac OS X 10.13.3 (Intel & Apple Silicon versions available) Mac OS X 10.15.7 (Intel & Apple Silicon versions available) warning By default, you cannot open an app from an unidentified developer on macOS. If you receive a warning about an unidentified developer when installing TOS Browser, you will need to override your system's security settings. For instructions, see When installing tosutil or TOS Browser on macOS, a prompt appears stating that the app is from an unidentified developer.	TOS Browser-darwin-intel TOS Browser-darwin-arm64
Linux	Ubuntu 18.04	The Linux version of TOS Browser is currently in closed beta. Please contact your account manager for access.

Release notes

Version number	Release type	Release date	Description
1.12.1	Latest release	2026-01-26	Added the ability to sort by object name to improve the user experience. Added support for displaying HNS bucket recycle bin.
1.11.4	Previous release	2025-11-17	Optimized copy operations to increase copy speed. Optimized move operations by prioritizing the RenameObject API after enabling the RenameObject feature to speed up the process. For more information, see Enabling RenameObject.
1.11.3	Previous release	2025-10-24	Added the ability to change the language. For more information, see Switching between sessions and languages. Added support for HTTP proxies. For more information, see Using an HTTP proxy.
1.11.2	Previous release	2025-09-03	Optimized stability.
1.11.1	Previous release	2025-09-03	Added the ability to set an expiration time for share links when sharing objects or folders. The share link will automatically expire once the specified time has elapsed. For more information, see Basic object operations. Added the ability to view the size of pending downloads in the task schedule management panel.
1.10.10	Previous release	2025-08-11	Added support for logging in to TOS Browser with temporary credentials of Security Token Service (STS). For more information, see Logging in to TOS Browser with AK/SK or STS temporary credentials. Added support for recording each access path along with the associated custom endpoint's session history. For more information, see Logging in to TOS Browser with AK/SK or STS temporary credentials. Optimized task progress management by highlighting failed tasks. For more information, see Task center.
1.10.9	Previous release	2025-07-23	Added the ability to generate file paths and pre-signed URLs using custom domains associated with buckets. Added the ability to set the number of objects displayed per page on the objects list page. For more information, see Basic object operations.
1.10.8	Previous release	2025-07-22	Optimized stability.
1.10.7	Previous release	2025-06-13	Added the ability to create authorization codes. Share these codes with others so they can log in to TOS Browser and access TOS resources. For more information, see Creating an authorization code and Logging in to TOS Browser with an authorization code. Fixed an issue that prevented blank files from being saved when they were edited online.
1.10.6	Previous release	2025-05-21	You can now create text files in TOS Browser. When previewing text files larger than 10 MiB, only the first 10 MiB can be displayed. The rest of the file cannot be shown. For more information, see Basic object operations.
1.10.5	Previous release	2025-04-21	Fixed an issue where the task status incorrectly showed "Completed" while the folder scan was still running after resuming a folder task.
1.10.4	Previous release	2025-04-14	Optimized stability.
1.10.3	Previous release	2025-04-01	Optimized stability.
1.10.2	Previous release	2025-04-01	Added the ability to rename folders. Added a feature that allows you to add a path to your favorites. Added the ability to preview audio and video files. Added a link tracking feature that allows you to track download behaviors after objects are shared via TOS Browser. For more information, see Basic object operations.
1.10.1	Previous release	2025-03-17	Updates to the QR codes for objects, according to domain name usage restrictions: If the bucket containing the object was created on or before January 3, 2024, scan the QR code to preview or download the object, depending on its type. If the bucket was created after January 3, 2024, scanning the QR code only allows you to download the object. For more information, see Obtaining object links.
1.9.9	Previous release	2025-02-24	Fixed an issue where the source file's metadata was not copied during the copying process. Fixed an issue where the buckets list did not update immediately after session switches.
1.9.8	Previous release	2025-02-21	TOS Browser now supports scheduled uploads. For more information, see Scheduled upload. TOS Browser now has a side panel on the left that displays buckets, making it easy to switch between them. For more information, see Basic bucket operations. TOS Browser now has an address bar at the top, making it easier to access the current file path.
1.9.7	Previous release	2025-01-26	Fixed an issue where upload tasks did not display their speed in certain cases.
1.9.6	Previous release	2025-01-25	Fixed an issue where file handles were not properly released when a task to resume uploads reported an error.
1.9.5	Previous release	2025-01-15	TOS Browser now supports forward and backward navigation.
1.9.4	Previous release	2025-01-06	You can now obtain the pre-signed URL of an object with one click. This makes sharing objects easier. For more information, see Basic object operations.
1.9.3	Previous release	2024-12-17	The Linux version of TOS Browser is now in closed beta. If you select objects from multiple storage types for batch restoration, only those in types that support the selected mode will be restored. An error will occur for objects in unsupported storage types. For more information, see Basic object operations.
1.9.2	Previous release	2024-12-06	Fixed an issue where the created share link would contain the special character /n.
1.9.1	Previous release	2024-11-21	Added the ability to manage objects in HNS buckets. Added support for object sorting. For more information, see Basic object operations. Added the ability to track the total number of objects and the total size of a folder. For more information, see Basic object operations.
1.8.12	Previous release	2024-10-18	Changed the default timeout value in Settings from 30 seconds to 120 seconds. For more information, see System settings. Optimized the default value and valid range for the Number of retries setting. The default value changed from 3 to 10, and the valid range changed from 1–5 to 0–20. For more information, see System settings.
1.8.11	Previous release	2024-10-18	Optimized stability.
1.8.10	Previous release	2024-09-23	Optimized stability.
1.8.9	Previous release	2024-09-04	Optimized stability.
1.8.8	Previous release	2024-08-28	Optimized stability.
1.8.7	Previous release	2024-08-23	Fixed an issue where access permissions could not be loaded correctly following modifications in multi-version cases.
1.8.6	Previous release	2024-08-22	Optimized stability. Fixed an issue where the speed displayed in the task center was inaccurate when resuming a task to upload or download a large object for which the concurrency of the part upload or download is greater than 1.
1.8.5	Previous release	2024-08-05	Added an automatic logout feature. When you log in to TOS Browser with an account, you will be logged out automatically after your login session expires. For more information, see Logging in to TOS Browser with an account. Added the ability to display the full path when previewing an object. For more information, see Basic object operations. Removed the ability to share objects when logging in to TOS Browser with an account. To use the sharing feature, log in to TOS Browser with AK/SK. Optimized stability.
1.8.4	Previous release	2024-07-18	Fixed an issue where bucket ACL error messages were not displayed properly. Added the Restart browser log in and Cancel log in options to the account login screen. Now, you can log back into TOS Browser after closing your browser. For more information, see Logging in to TOS Browser with an account.
1.8.3	Previous release	2024-07-11	You can now download or delete an object by right-clicking its name. For more information, see Basic object operations. You can now upload multiple objects or folders by dragging them onto the objects list page. For more information, see Basic object operations. In Windows, if you close TOS Browser, it will now be minimized to the system tray so you can access it more quickly. To fully close TOS Browser, right-click Exit in the Windows system tray.
1.8.2	Previous release	2024-07-02	Fix an issue where previewing objects would report errors in certain cases.
1.8.1	Previous release	2024-06-28	You can now log in to TOS Browser with an account. For more information, see Logging in to TOS Browser with an account. TOS Browser now supports data integrity checks after uploads and downloads. For more information, see System settings. TOS Browser now supports online editing. For more information, see Basic object operations. You can now copy objects or folders from subdirectories to parent directories. For more information, see Basic object operations.
1.7.8	Previous release	2024-05-31	Added the Upload shard concurrency and Download shard concurrency parameters. For more information, see System settings. Optimized the number of retries. Optimized the preview feature for scenarios involving objects with multiple versions.
1.7.7	Previous release	2024-04-22	Added support for batch restoration and batch deletion. For more information, see Basic object operations. Added the ability to select Cold Archive or Deep Cold Archive as the storage type of an object when uploading. Improved the experience to rename an object. By default, the text box for renaming now shows the original name.
1.7.6	Previous release	2024-04-10	Added support for downloading multiple objects with the same name to the same directory concurrently.
1.7.4	Previous release	2024-04-02	Added the ability to restore objects from the following storage types: Archive, Cold Archive, and Deep Cold Archive. For more information, see Basic object operations. Improved the unfriendly prompt that appeared when an unauthorized account attempted to modify object access permissions.
1.7.3	Previous release	2024-03-14	Fixed an issue that could cause downloads to fail in certain cases.
1.7.2	Previous release	2024-03-01	Fixed an abnormal memory usage issue that occurred when resuming the download of a large object.
1.7.1	Previous release	2024-02-06	Fixed an issue with the displayed access permissions when sharing links.
1.7.0	Previous release	2024-01-15	Added support for batch downloading if you log in to TOS Browser with a share link. For more information, see Logging in to TOS Browser. Added the ability to configure object ACL. For more information, see Basic object operations. Added the ability to upload multiple objects or folders by dragging and dropping them. For more information, see Basic object operations. Optimized task processing performance.
1.6.3	Previous release	2023-10-30	Improved the login experience under special conditions.
1.6.2	Previous release	2023-10-07	TOS Browser is now compatible with the tos://bucket access path.
1.6.1	Previous release	2023-09-27	Added the ability to zoom in and out when previewing images. For more information, see the Preview objects section in Basic object operations. Added the ability to open the local folder of a downloaded file. For more information, see Task center. Added the ability to search for objects by prefix in the address bar. For more information, see the Searching for objects section in Basic object operations. Added support for copying folders that contain a large number of objects. For more information, see the Copying objects section in Basic object operations.
1.5.0	Previous release	2023-09-04	Now, no authorization code is required when sharing objects and folders. For more information, see Basic object operations.
1.4.0	Previous release	2023-08-01	After setting Endpoint to Public cloud on the TOS Browser login page, you can now configure Access path. For more information, see Logging in to TOS Browser.
1.3.0	Previous release	2023-06-16	TOS browser will now automatically check for the latest version when you log in, rather than after. If a new version is available, you will be prompted to update. If you log in to TOS Browser with AK/SK, you can now preview objects online. For more information, see Basic object operations.
1.2.1	Previous release	2023-06-14	Fixed an issue where TOS Browser would report an error when searching for objects in a folder after logging in via a share link, if no matching objects were found.
1.2.0	Previous release	2023-06-07	You can now use a share link or authorization code to log in to TOS Browser. For more information, see Logging in to TOS Browser. TOS browser will now automatically check for the latest version after you log in and ask if you want to install it.
1.1.3	Previous release	2023-05-12	Fixed an issue where a bucket deleted through another access method still appeared in TOS Browser.
1.1.2	Previous release	2023-05-05	Only invited users can now see the list of supported regions.
1.1.1	Previous release	2023-05-01	Fixed an issue where the region filter was unavailable in the buckets list and corrected the default region logic for the public cloud.
1.1.0	Previous release	2023-04-03	Added the ability to modify object storage type. For more information, see Basic object operations. Optimized the valid range for task-related settings. For more information, see System settings. Fixed an issue where the refresh button on the objects list page was unresponsive. Fixed an issue where an error would be reported when renaming a downloaded local file with a duplicate name.
1.0.2	Previous release	2023-01-09	Added support for object sharing. Fixed an issue where uploading folders on Windows would flatten the folder structure.
1.0.1	Initial release	2022-12-13	Initial release. You can now use TOS Browser to create buckets and upload objects. For a list of supported features, see Supported features.

Installing TOS Browser

Download the installation package corresponding to your operating system.

Double-click the installation package and follow the prompts to install TOS Browser.

Upgrading TOS Browser

When you log in to TOS Browser, the system will now automatically check for the latest version and prompt you to update if a new one is available.

You can also manually check for updates and upgrade TOS Browser by following these steps:

Click the circular button in the upper-right corner.

In the box that appears, upgrade to the corresponding version.

Install the latest version: Click Check for updates. After downloading the installation package, click Restart to upgrade.

Install updates automatically: Check the box for Install updates automatically. The next time you restart the application, TOS Browser will automatically install the latest version.

Last updated: 2026.03.18 18:48:57