Privacy Policy — MediaScope

Last updated: June 6, 2026

MediaScope is a Chrome DevTools extension for inspecting <video> elements on the page you are debugging. This policy explains what the extension does and does not do with data.

Summary

MediaScope does not collect, store, transmit, or sell any personal or browsing data. All processing happens locally in your browser. The extension operates no servers and sends no data to the developer or any third party.

What the extension accesses

When you select a video in the MediaScope panel, the extension reads that video's media bytes so it can analyze the file locally. It does this by:

• Issuing HTTP Range requests for the video's source URL (for videos served over http/https), and/or
• Reading the page's in-memory blob:/File data for the selected video, via the standard DevTools API (chrome.devtools.inspectedWindow).

These bytes are used only to compute and display the information shown in the panel (metadata, codecs, MP4 box tree, sample/packet list, decoded frame, bitrate chart). They are processed in memory in the DevTools panel and are not persisted or transmitted anywhere.

What the extension does NOT do

• It does not collect or transmit personally identifiable information.
• It does not track you or record your browsing history.
• It does not use analytics, advertising, or fingerprinting.
• It does not store your data in any remote location.
• It does not sell or share any data with third parties.
• It does not load or execute remote code.

Permissions

MediaScope requests host access (<all_urls>) solely so it can fetch the bytes of the video you choose to inspect, which may be hosted on any domain. The permission is used only for that purpose and only while you are actively inspecting a video.

Data retention

MediaScope stores no data. Nothing the panel reads outlives the DevTools session in which you read it.

Changes to this policy

If this policy changes, the "Last updated" date above will be revised and the new version will be published at the same location.

Contact

Questions about this policy: planystudio.sg@gmail.com