Transpose ▲▼ Pitch ▹ Spee
🔍 Security Report Available View on Chrome Web StoreChrome will indicate if you already have this installed.
Overview
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
💁 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
🌍Tonhöhe und Wiedergabegeschwindigkeit ändern • Cambia tono de videos • Modifier la hauteur des vidéos • Toonhoogte & snelheid aanpassen in video’s • Modifica tonalità dei video
Tags
Privacy Practices
Security Analysis — Transpose ▲▼ Pitch ▹ Spee
Permissions
Code Patterns Detected
External Connections
Package Contents 227 files · 6.4MB
What This Extension Does
Transpose ▲▼ Pitch ▹ Spee is a browser extension that allows users to adjust pitch, change playback speed, and loop sections of online videos like YouTube. It's ideal for musicians, singers, and learners who want to practice smarter.
Permissions Explained
- activeTabexpected: This permission lets the extension access the current webpage you're viewing.
Technical: The extension uses this permission to inject a content script into the active tab, which allows it to manipulate audio playback and capture keystrokes. - scriptingexpected: This permission lets the extension run scripts on your behalf, which can be used for various tasks like manipulating audio or accessing storage.
Technical: The extension uses this permission to execute JavaScript code in the context of the active tab, which allows it to access and modify page content, including audio playback. - storageexpected: This permission lets the extension store data locally on your device, such as settings or cached files.
Technical: The extension uses this permission to store user preferences and other data in local storage, which can be accessed by the content script. - sidePanelexpected: This permission lets the extension display a panel on the side of your browser window.
Technical: The extension uses this permission to inject a side panel into the browser UI, which allows it to provide additional functionality and settings. - tabCapturecheck this: This permission lets the extension capture audio from any tab you're viewing.
Technical: The extension uses this permission to access audio playback in all tabs, which allows it to manipulate and record audio content. ⚠ 1
Your Data
Transpose ▲▼ Pitch ▹ Spee accesses various data on your device, including keystrokes, page content, and storage. It sends data to its own servers at transpose.video.
Technical Details
- transpose.video
- www.w3.org
- www.google.com
- open.spotify.com
- www.youtube.com
- img.youtube.com
- music.youtube.com
- accounts.youtube.com
- angular.dev
- www.google-analytics.com
- photos.google.com
- vimeo.com
- HTTP
- HTTPS
- cookies
- tokens
- keystrokes
- page content
Code Findings
This code pattern can potentially lead to cross-site scripting (XSS) attacks if exploited.
Technical: The extension uses innerHTML assignment in its content script, which can be used to inject malicious scripts into the page.
💡 Legitimate extensions often use innerHTML assignment for UI updates and other tasks.
This code pattern is used to obfuscate strings, making it harder to understand the extension's behavior.
Technical: The extension uses String.fromCharCode and charCodeAt to encode and decode strings, which can make it harder for security researchers to analyze the code.
💡 Legitimate extensions often use string encoding and decoding for various tasks, such as data storage or encryption.
This behavior can potentially lead to unauthorized access to sensitive data if exploited.
Technical: The extension uses the navigator.clipboard API to write data to the clipboard, which can be used for malicious purposes if not properly sanitized.
💡 Legitimate extensions often use the clipboard API for tasks like copying text or images.
This behavior can potentially lead to unauthorized access to sensitive data if exploited.
Technical: The extension uses the keyboard API to capture keystrokes, which can be used for malicious purposes if not properly sanitized.
💡 Legitimate extensions often use the keyboard API for tasks like auto-completion or text expansion.
This behavior can potentially lead to unauthorized access to sensitive data if exploited.
Technical: The extension uses the activeTab permission to run its content script on all websites, which can be used for malicious purposes if not properly sanitized.
💡 Legitimate extensions often use this permission for tasks like ad-blocking or content filtering.
This behavior can potentially lead to unauthorized access to sensitive data if exploited.
Technical: The extension uses the tabCapture permission to access audio playback on all websites, which can be used for malicious purposes if not properly sanitized.
💡 Legitimate extensions often use this permission for tasks like audio recording or transcription.
This behavior can potentially lead to unauthorized access to sensitive data if exploited.
Technical: The extension uses the storage permission to monitor changes to local storage, which can be used for malicious purposes if not properly sanitized.
💡 Legitimate extensions often use this permission for tasks like data synchronization or caching.
This behavior can potentially lead to unauthorized access to sensitive data if exploited.
Technical: The extension uses a potential hardcoded secret in its code, which can be used for malicious purposes if not properly sanitized.
💡 Legitimate extensions often use hardcoded secrets for tasks like API keys or encryption.
This behavior can potentially lead to unauthorized access to sensitive data if exploited.
Technical: The extension uses the postMessage API to communicate with its content script, which can be used for malicious purposes if not properly sanitized.
💡 Legitimate extensions often use this API for tasks like communication between scripts or pages.
Transpose ▲▼ Pitch ▹ Spee has some concerning behaviors, including capturing keystrokes and running on all websites. While it's a useful extension for musicians and learners, users should be cautious when granting permissions and regularly review the extension's behavior to ensure it aligns with their expectations.
