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Detect the musical key & BPM of any audio in your browser. Transpose YouTube in real-time. Interactive piano keyboard included. Instantly find the musical key and BPM of any song playing in your browser tab. No microphone needed — Key Detector analyzes your tab's audio directly, using professional-grade signal processing to identify key, mode, and tempo in seconds. Used by guitarists, singers, producers, music students, and transcribers to answer the #1 question: "What key is this song in?" • Clearer two-mode layout — DETECT (one-shot key + BPM result) and LIVE (continuous real-time detection). Simpler, more intuitive labels. • Your music keeps playing during analysis — we no longer mute the tab while detecting, and the analyzer now reads the full audio signal for more reliable results. • Bigger, clearer Tap BPM tool — tap along to the beat and read the tempo on a large, easy-to-see display. • Cleaner results — the detected key is the star, with streamlined alternative-key suggestions. • Refreshed piano highlighting — the detected key now stands out clearly from the rest of the scale. • Accessibility upgrades — full keyboard navigation for tabs, toggles, and the piano. • (Pro) Dark mode for late-night sessions. Analyzes 15–60 seconds of audio for maximum accuracy. Uses the Krumhansl-Schmuckler key-finding algorithm — the same method used in professional music analysis software — to detect all 24 major and minor keys. • Detects key and mode (major or minor) with confidence score • Color-coded confidence: green (high), amber (medium), red (low) • Shows top 3 alternative key candidates • BPM tempo detection included • Manual Tap BPM tool — tap along to find the tempo by hand • Results saved to session history • C4–C5 range with accurate black and white key layout • Highlights root note and in-scale tones for any key • Manual root selector (C, C♯, D, D♯, E, F, F♯, G, G♯, A, A♯, B) • Scale selector: Chromatic, Major, Minor • Click any key to hear the note (built-in audio synthesis) • Auto-syncs with Detect results — no manual input needed Continuous detection mode that updates every few seconds as the audio plays. Great for tracking modulations in longer tracks or getting a quick read before committing to a full Detect analysis. Transpose YouTube videos up or down by any number of semitones — in real-time, without affecting playback speed. Powered by SoundTouch audio processing. Ideal for: • Singers who want to perform a song in a more comfortable key • Guitarists who want to play along without retuning • Producers matching the key of a sample to their project Every key and BPM detection is logged automatically. Review your recent analyses, compare results across songs, and pick up where you left off. WHO IS KEY DETECTOR FOR? ✓ Guitarists & instrumentalists — find the key of any song to jam along ✓ Singers & vocalists — detect key before performing, transpose to your range with Studio Mode ✓ Music producers & DJs — confirm key and BPM for harmonic mixing and mashups ✓ Music students — visualize scales on the piano keyboard, practice ear training ✓ Transcribers & arrangers — identify key signatures in seconds, not minutes ✓ Karaoke singers — transpose YouTube songs to match your voice ✓ Songwriters — quickly identify the key of a reference track Key Detector uses the Web Audio API to capture your tab's audio stream in real time. The Krumhansl-Schmuckler algorithm computes pitch class profiles across the audio and correlates them against all 24 major/minor key templates to find the best match. BPM is detected via spectral flux analysis. The interactive piano uses Web Audio oscillator synthesis for note playback. Everything runs locally in your browser. Your audio never leaves your device. Key Detector processes everything directly in the browser — no audio is uploaded, recorded, or stored on any server. Detection only runs when you actively start it. We collect no personal data. Pro (one-time purchase): • Studio Mode — real-time pitch transposer for YouTube • Camelot wheel — DJ & harmonic-mixing notation • Dark mode • Extended session history • Early access to new features Works on YouTube, SoundCloud, Spotify Web, Bandcamp, and virtually any website that plays audio in a browser tab. If Key Detector helped you find the key of a song you've been searching for, please take a moment to leave a review — it helps other musicians discover this tool. 🎵
MyEffects
Add high-quality slowed, reverb, pitch shift, bass, echo, spacial, vocal and wobble effects to YouTube videos MyEffects for YouTube Take control of your audio experience. This extension provides professional-grade real-time audio manipulation for videos on YouTube. Adjust speed and pitch independently, apply rich reverb, or boost the bass with intuitive, immediate controls. Go beyond basic adjustments with advanced features like a dynamic wobble effect that syncs to the beat, echo, vocal clarity enhancement, and immersive 8D spatial audio. A set of curated presets instantly delivers popular styles like "slowed + reverb," and "deep bass." Designed for clarity and precision, the interface gives you granular control when you need it without getting in the way. It processes audio directly in your browser for high-quality, low-latency output. Enhance your favorite music videos with a powerful, all-in-one audio toolkit. Note that this extension has a problem working with mixes (specifically youtube mixes autoplay function) and if you encounter any lagging, refreshing the page should fix the problem.
bpm-key-finder
Discover the rhythm and key of any track with BPM & Key Finder. ✨ How It Works: 1. Install the extension. 2. Play audio on a… Discover the rhythm and key of any track with BPM & Key Finder. ✨ How It Works: 1. Install the extension. 2. Play audio on a webpage or upload a file directly. 3. Click the extension icon in your toolbar. 4. Instantly view the BPM and musical key. 🎵 Key Features: - Upload an audio file or capture audio directly from the current webpage - Instantly detect the BPM (Beats Per Minute) and musical key - Works with songs, loops, samples, and any streaming audio - Perfect for DJs, producers, musicians, and music enthusiasts ✨ Whether you’re mixing tracks, producing music, or just curious about a song’s structure, this tool gives you quick and reliable insights into tempo and harmony.
PlayFlow: Musician Toolbox for YouTube
Musician toolbox for YouTube: pitch & tempo control, A/B loop, smart speed-up, metronome, count-in, 3-band EQ, floating UI. PlayFlow is a musician's toolbox built right into YouTube. Practice any song with independent pitch and speed control, loop tricky sections, and stay in the flow — all without leaving the video. # Pitch Control • Shift pitch from −12 to +12 semitones • Change the key without affecting playback speed • Match any song to your voice or instrument # Speed Control • Adjust playback from 0.25× to 2.0× • Fine-tune in 0.05× increments • Slow down fast passages for note-by-note practice # A/B Loop • Set A (start) and B (end) points to loop any section • Type exact times or set from the current position • Arrow-key fine adjustment (±1 second) # Smart Loop • Automatically increase speed after each loop cycle • Set the speed increment per loop (e.g. +0.05×) • Set a max speed — PlayFlow stops raising once you reach it • Build up to full tempo gradually without touching a single control # Count-in • Audible count-in (3-2-1) before each loop begins • Choose 1 or 2 bars — matches the current BPM and speed • Visual overlay on the video player so you never miss the downbeat # Metronome • Built-in click track synced to playback speed • Tap Tempo — tap the button to detect BPM instantly • Manual BPM input (40–300) • Live display of the effective BPM at current speed # 3-Band EQ • Low / Mid / High shelving and peaking filters • ±12 dB range with 0.5 dB steps • Cut bass to hear melody, boost mids for vocals, or shape tone to taste • EQ preset saved automatically — persists across sessions # Floating UI • Draggable control panel overlaid on YouTube pages • Minimize to a tiny bar to keep screen space • Stays open across page navigation within YouTube • All controls sync with the popup in real time # PERFECT FOR • Musicians learning songs by ear • Vocalists adjusting song keys • Guitarists and pianists practicing riffs and solos • Language learners slowing down speech • Transcribers needing precise audio control • Anyone practicing along with YouTube videos # PRIVACY • No data collection whatsoever • Works entirely on your device • No account or sign-up required Works on youtube.com and music.youtube.com.
BPM Finder
BPM Finder is a beats per minute counter for any song, offering an easy and intuitive tap tempo tool for music producers and DJs. 🎵 How to find beats per minute On the quest for a specific song's tempo? Look no further. Our bpm counter acts as your personal song tap tempo, effortlessly identifying the speed of your favorite tracks. 🧑💻 Steps to use bpm finder 1. Click the "Add to Chrome" button in the upper right corner. 2. Press Space or click the "TAP" button along to any song. 3. Actual beats per minute will appear as you keep tapping the tempo of any music. 🌐 Discover precise beat per minute counter Bpm finder is your all-in-one solution for exploring the rhythmic heartbeat of your favorite tunes. Whether you're a musician, DJ, or simply love music, this Chrome Extension simplifies the process of understanding and syncing beats. 📌 Key features 1️⃣ tap tempo and bpm finder integration: – Effortlessly tap along to any song, and watch tempo counter provides instant beats per minute readings, serving as an on-the-fly meter detection. – Seamlessly integrate the extension into your Chrome browser for efficient and real-time tempo analysis. 2️⃣ Quick tempo tapping detection across websites: – Adapt bpm finder to various platforms like YouTube, Spotify, and more, making it a versatile beats per minute detector. – Enjoy a consistent experience in finding beats per minute on different songs as you explore the musical terrain online. 3️⃣ User-friendly interface for easy navigation: – Navigate the pulse recognition user-friendly interface with ease, ensuring a seamless experience for users of all levels. – Access detailed beats per minute information, enhancing your understanding of the rhythm and speed of your favorite tracks. 4️⃣ Personal song bpm finder: – Beyond being a typical extension for Chrome, tapping for tempo becomes your personal song meter detection. – Identify and catalog the beats per minute of any track effortlessly, providing an efficient way to curate playlists with precision. 🎹 Efficient and innovative functionality ▸ Effortless tap to bpm counter: – Indulge in an effortless finding song's speed feature, enhancing creativity and refining musical timing. – Add a sensory delight to the music discovery process, making bpm finder a unique and innovative tool for hands-on connection to rhythm. ▸ Versatile application for professionals: – Ideal for professionals in the music industry, bpm finder serves as a reliable beat per minute detector for producers and DJs. – Ensure your compositions and mixes align seamlessly with the desired tempo, a crucial aspect of achieving melodic excellence. ☑️ Tap for bpm with ease Enjoy a hands-on approach to finding beats per minute with our tap to recognition feature. Perfect for musicians who prefer a tactile feature, this functionality makes rhythm detection a breeze. 🧰 Easy installation and integration ▸ Quick installation for instant access: – Meet the power of bpm finder with a quick and easy installation process. – Instantly integrate the extension into your Chrome browser, unlocking a world of musical precision at your fingertips. ▸ Seamless integration with browsing: – Seamlessly integrate bpm finder into your browsing experience, allowing you to tap for tempo anywhere on the web. – Enjoy the flexibility of tempo tapping across different websites, adapting to your online music exploration. 🧳 Bpm detector wherever you go Take the power of tempo recognition with you. Our extension is a versatile song speed counter that works across websites, making it an indispensable tool for anyone who wants to explore the rhythm of their favorite tunes. 🔓 Unlock the potential of calculating beats per minute ▸ Download today for musical precision: – Ready to elevate your musical journey? Download bpm tapper today and embark on a precision-driven adventure. – Join a community of music enthusiasts who trust bpm finder for accurate song beats per minute detection and tap for tempo functionality. ▸ Enhance your music adventure: – Whether you're a professional seeking precise tempo analysis or a casual listener looking to enhance your melodic exploit, beats per minute counter offers something extraordinary for everyone. – Enter into the potential of tap for tempo, unlock creativity, and refine your musical timing with this simple and powerful add-on for Chrome. 🔍 Find beats per minute instantly With bpm finder, there's no waiting around. Instantly find tempo with a few taps or clicks. Streamline your music-related tasks and enjoy a more efficient and productive musical journey. 🙋♂️ Frequently asked questions 📌 How does it work? 💡 Tap along to any song playing for 30 seconds, and you will detect the beats per minute. 📌 Can i use it for free? 💡 Yes, this extension is available for free download. 📌 How to install? 💡 To install bpm finder, navigate to the Chrome Web Store and click on "Add to Chrome". The extension will then be added to your browser. 📌 Is my privacy protected when using the extension? 💡 Yes, this extension runs locally within your browser, ensuring the privacy and security of your personal information. It does not collect or store any user data. ⬇️ Get bpm finder today Ready to elevate your musical adventure? Install tempo counter today and embark on a journey of precision, rhythm, and musical excellence. Join the community of music enthusiasts who trust bpm finder for right beats per minute detection and tap tempo functionality. Meet the future of music analysis with bpm finder — your key to unlocking the perfect rhythm! 📪 Contact us If you have any questions or suggestions, contact us via email.
