OSHIStamp: YouTube Video Timestamp Creation & AI Summary Tool

YouTube Video: Timestamp Creation Assistant Tool

This is a free tool that assists with creating timestamps for YouTube videos.

With intuitive controls, you can easily create and edit timestamps, and for advanced users, quick tasks using keyboard shortcuts are also available.

Additionally, with the AI summary and the per-video saved memo list, you can jump to the corresponding video with a single click, allowing smooth access to previously created timestamps.

It helps make your fan activities more enjoyable and convenient. Please make use of it!

🔧Main Features:

✅️Insert Timestamps
Click the ⏱️ button while watching a video to insert the current time at the cursor position.

✅️Change Timestamp Format
You can choose from the following two formats for the timestamps:
- Short format (e.g., 2:30, 1:45:15)
- Full format (e.g., 00:02:30, 01:45:15)
※ When adjusting by ±1 second using shortcuts(CTRL + SHIFT/ALT + ↑↓), the selected format will be applied.

✅️Jump from Timestamps
Clicking on a timestamp link will move the video to that time.

✅️Fast Forward / Rewind
You can choose from preset durations (1s, 5s, 10s, 1min, 5min, 10min) using buttons. Shortcut keys (Ctrl + Shift / Alt + ←→) are also supported. One custom duration can be added as well.

✅️Playback Speed
Playback speed can be selected from 0.5x, 1x, 1.5x, 2x, or 2.5x using buttons.

✅️AI Summarization
Leverage Google AI Studio (e.g. Gemini API) to semi‑automatically summarize the content of captioned videos.

Limitations
- Video length: under 12 hours
- Caption file required
- Breaks required for continuous use (due to Google AI Studio API rate limits)

✅️Video Screenshot
You can download a screenshot of the video in "PNG format."

✅️Generate Timestamp Links
Copy a link that starts playback from the current time to your clipboard with one click.

✅️Copy Timestamp
Copy the created timestamp to the clipboard with one click.

✅️Check Current Time
View the current playback time on-screen in real time.

✅️Video-based Auto-Save Function
Timestamps are automatically saved to local storage as they are created, so there's no worry about losing data during your work.

Timestamps are saved independently for each video, allowing you to manage timestamps for multiple videos collectively. Additionally, you can jump to the corresponding video with a single click from the per-video saved memo list, allowing smooth access to previously created timestamps.

✅️Backup and Restore
To ensure your data is carried over in the following scenarios, we provide a backup feature for timestamp data:
- Reinstalling the extension
- Reinstalling Chrome
- Deleting the user profile (user data directory)
- Reinstalling the OS or migrating to a different OS

All timestamp data can be exported and imported in JSON format, enabling easy saving and restoration. Automatic backups to Google Drive are also supported.

✅️Color Mode Feature
Now supports Dark Mode.

✅️Display Fan Images
Upload your favorite image to display on the screen, boosting motivation for your fan activities!
(Supported size: 500px × 70px, formats: JPG, PNG, SVG)

✅️Minimize Feature
Minimize the screen to the bottom right when not in use.

👉️Keyboard Shortcuts（CTRL + SHIFT or ALT）:

･CTRL + SHIFT/ALT + S: Insert timestamp
･CTRL + SHIFT/ALT + K: Toggle play/pause
･CTRL + SHIFT/ALT + →: Skip forward by selected amount
･CTRL + SHIFT/ALT + ←: Skip backward by selected amount
･CTRL + SHIFT/ALT + ↑: Increase selected timestamp by 1s, 10s, 1m, or 10m (multiple values can be selected)
･CTRL + SHIFT/ALT + ↓: Decrease selected timestamp by 1s, 10s, 1m, or 10m (multiple values can be selected)

📝Recent Change Log:

- v2.34.1:
･Fixed an issue where shortcut keys were triggered twice

- v2.34.0:
･Added a keyboard shortcut. CTRL + SHIFT/ALT + K toggles play and pause.

- v2.33.0:
･Added automatic backup of saved memo lists to Google Drive.

🔏Privacy and Data Management:

This tool does not collect any user data. All data is saved locally and managed securely.

📌Disclaimer:

The developer is not responsible for any loss or damage caused by the use of this tool. Please use it at your own risk.

💠Affiliate Disclosure:

This service participates in the Amazon Associates Program.