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42Versions
1Code reviewed

No malware found

In code review (v6.4.0)

Our reviewer read version 6.4.0 — the most recent version we have reviewed — and found no malicious behaviour. The version shown here has not been individually reviewed yet.

What our analysis found

Transpose ▲▼ pitch ▹ speed ▹ loop, used by 1,000,000 people, showed no malicious code in Extension Auditor's review. Its permissions mean it can inject scripts into pages. It comes from a trusted publisher and was last updated in September 2026.

The extension is a legitimate audio processing tool for adjustments on streaming platforms. All permissions are necessary for its core functionality (activeTab, scripting to inject content scripts, storage for user preferences, sidePanel for UI, tabCapture for optional feature). Network requests are to Firebase (first-party backend) for authentication and user data storage, consistent with the publisher's privacy policy. No unauthorized data collection, exfiltration, or code injection was found. The ML risk score (0.00) and third-party risk score (low) corroborate a benign classification. The extension has high user count (1M+) and positive reviews, and the publisher is trusted.

Transpose ▲▼ pitch ▹ speed ▹ loop

Transpose ▲▼ pitch ▹ speed ▹ loop Chrome extension security report

ID: ioimlbgefgadofblnajllknopjboejda

Supported Languages

🇺🇸English

Extension Info & Metadata

Status
Active
Version
6.5.2
Size
8.65 MB
Rating
4.5/5
Reviews
983
Users
1,000,000
Type
Extension
Updated
Sep 20, 2026
Category
Tools
Price
Paid
Featured
Yes
Visibility
Listed
Mature
No
By Google
No
Trusted
Yes
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This publisherTrack record
1extension
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Scanned by Extension Auditor — Low RiskDevelopers: embed this badge to link to this report.

Publisher Contextual Analysis

Trusted
Author
Transpose Studio B.V.
Privacy
Privacy Policy
Help
Help Center
MX records exist
Yes
Domain exists
Yes
Is disposable
No
Is role-based
Yes
Mailbox exists
Yes
Extensions
1
Active
1
Obsolete
0
Listed
1
Unlisted
0
Users
1,000,000

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Screenshots & videos

Screenshot 1
Screenshot 2
Screenshot 3
Screenshot 4
Screenshot 5

Install growth

Item
Type
Severity
Description
scripting
Permission
Critical
This permission allows injection and execution of JavaScript on any webpage. Rated Critical because it can modify page content, steal sensitive data, and inject malicious code into any site the extension has access to.
offscreen
Permission
High
This permission creates hidden browser documents with full DOM access. Rated High because it can run background operations invisibly, potentially executing malicious code without user awareness.
Contextual Risk Factors
Risk Factor
High
The following context increases the overall risk: • 25% increase: Unsafe code evaluation capabilities increase attack surface
Unsafe WebAssembly Execution
Risk Factor
High
This extension's CSP allows "wasm-unsafe-eval".
activeTab
Permission
Medium
This permission grants temporary access to the current tab. Rated Medium because it can access current page content when invoked, though limited to user-initiated actions.
storage
Permission
Medium
This permission allows storing data locally in the browser. Rated Medium because it can persist sensitive user data, track user activities over time, and potentially store malicious payloads.
contextMenus
Permission
Low
This permission adds items to browser context menus. Rated Medium because it only modifies right-click menus without access to page content.
sidePanel
Permission
Low
This permission adds custom panels to the browser interface. Rated Low because it only affects browser UI elements and cannot access page content.

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About this extension

Pitch shifter, speed changer and looper for online videos like YouTube. Musician's toolbox for practicing and rehearsing.

Read the publisher’s full description

Transpose lets you adjust pitch ▲▼, change playback speed ⏱ and loop ⟲ any section — all in real time. Ideal for musicians, singers, and learners using YouTube, Spotify and other platforms. Join over 1,000,000 users worldwide. Practice smarter. ✨ Transpose Classic (Free) ✨ The free version is more powerful than ever and remains free forever. ✓ Pitch shift ±12 semitones & fine-tune ✓ Speed control 25% up to 400% ✓ Unlimited loops with markers ✓ Keyboard shortcuts ✓ Works with YouTube, Spotify, local files and more ✓ Dark mode ✓ Remembers settings per video ✓ No sign-in, no browsing history or personal data collected Works great for learning songs, transcribing, karaoke, slowing down tutorials, and transposing local MP3 backing tracks. Some platforms may require optional permissions or Tab capture mode. ⚡Transpose Pro (Advanced)⚡ Take your practice to the next level with this premium upgrade. ✓ All Classic features, plus: ✓ Premium high-quality, low-latency pitch shifter ✓ Formant control & voice reducer ✓ Side panel UI for faster access ✓ Timeline with draggable markers & scrubbing ✓ Advanced looping and clip sequences ✓ Save your work in the cloud ✓ and much more Claim your free trial today (no card required, ends automatically) 💁 Note: • Refresh the page if it doesn't work the first time • Some sites may block audio access • See usage FAQ: https://transpose.video/#faq 🔒 Browser Permissions: By default, no permissions are needed. Optional permissions may be required for embedded YouTube videos or platforms like open.spotify.com. Details: https://transpose.video/policies 🌍 Change pitch & speed of YouTube videos • Tonhöhe und Wiedergabegeschwindigkeit ändern • Cambia tono de videos • Modifier la hauteur des vidéos • Toonhoogte & snelheid aanpassen in video’s • Modifica tonalità dei video

User reviews

Extension files

Browse and explore files within this extension package

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No network indicators were extracted from this version.

Version
Size
Verdict
Findings
Permhash
6.5.2
Latest
8.65 MBNot scanned—
ff664de873859cfdf28b6511722f38897cbf8f90a5dadc3bde145bdfb8887061
6.5.1
8.65 MBNot scanned—
ff664de873859cfdf28b6511722f38897cbf8f90a5dadc3bde145bdfb8887061
6.5.0
8.63 MBNot scanned—
ff664de873859cfdf28b6511722f38897cbf8f90a5dadc3bde145bdfb8887061
6.4.1
2.86 MBNot scanned—
5328b1ae670cf37de3fd26d1708f96ae4ace3f09493f7c43b637c6693f8d7ce0
6.4.0
2.86 MBNo malware found0
5328b1ae670cf37de3fd26d1708f96ae4ace3f09493f7c43b637c6693f8d7ce0
6.3.2
2.72 MBNot scanned—
5328b1ae670cf37de3fd26d1708f96ae4ace3f09493f7c43b637c6693f8d7ce0
6.3.1
2.82 MBNot scanned—
5328b1ae670cf37de3fd26d1708f96ae4ace3f09493f7c43b637c6693f8d7ce0
6.3.0
2.72 MBNot scanned—
5328b1ae670cf37de3fd26d1708f96ae4ace3f09493f7c43b637c6693f8d7ce0
6.2.0
2.69 MBNot scanned—
5328b1ae670cf37de3fd26d1708f96ae4ace3f09493f7c43b637c6693f8d7ce0
6.1.1
2.67 MBNot scanned—
5328b1ae670cf37de3fd26d1708f96ae4ace3f09493f7c43b637c6693f8d7ce0
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Code Diff

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0 changed files detected

No comparable text files found between these versions.

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