Effective: 2026-06-06  ·  Last updated: 2026-06-06

Tach does not collect, store, transmit, sell, or share any personal data. No tracking. No analytics. No external network requests.

Tach is a free, open-source (MIT-licensed) browser extension that sets a default HTML5 video playback speed and gives you quick manual control. Your privacy is the default, not a setting.

What the extension stores (and where)

Tach saves only your settings, using the browser's own chrome.storage.sync:

• Default playback speed
• Per-site speed presets (e.g. a remembered speed for youtube.com)
• Your six custom quick-access preset speeds
• Theme preference (light / dark / auto) and accent color
• YouTube cleanup toggles (hide Shorts, hide comments/live chat, hide chat in fullscreen, skip ads)
• "Include timestamps" preference for the transcript copy

This data lives in your browser and is synced by your browser to your own signed-in account (e.g. Chrome/Brave sync). It is never sent to the developer or anyone else. Uninstalling the extension removes it.

Permissions and why each is needed

storage	Save your settings (above) and let the browser sync them across your signed-in browsers.
clipboardWrite	Copy a YouTube video's transcript to your clipboard — only when you click the "Copy Transcript" button.
Host access (<all_urls>)	Run the speed-control content script on pages that contain video, on any site you visit. Tach only reads and sets the playback rate of HTML5 <video> elements — it does not read page content, form input, passwords, or browsing history, and it sends nothing anywhere.
commands	Register the optional keyboard shortcuts (increase / decrease / reset speed). This is a manifest declaration, not a data-access permission.

The YouTube transcript feature

When — and only when — you click Copy Transcript on a YouTube watch page, Tach reads the transcript that YouTube already shows in the page and writes it to your clipboard. The transcript is not uploaded, logged, or transmitted anywhere; it goes straight to your clipboard for you to paste.

What Tach does not do

• Does not collect personal or sensitive information
• Does not track your browsing or build a profile
• Does not use analytics or telemetry of any kind
• Does not make network requests to any server
• Does not sell or share data with third parties
• Does not inject ads or remote code

Changes to this policy

If this policy ever changes, the updated version will be published here with a new "Last updated" date. Material changes will be reflected in the extension's store listing.

Contact

Questions about this policy or the extension's privacy practices: dom@domdhi.com

Tach · Free, open source (MIT), private by design.