Watch Netflix on your TV speakers while someone else uses headphones — from the same browser tab. Stream to multiple Bluetooth speakers, run a silent disco, or fill every room with music. One tab, unlimited outputs.
One browser tab. Multiple speakers. Endless possibilities.
One screen, everyone hears. Watch Netflix, YouTube, or any streaming site — send audio to TV speakers AND everyone's headphones at the same time. Perfect for couples, twins sharing a laptop, families on airplanes, or dorm rooms. Each person controls their own volume.
Pro tip: Want each person to hear different content? Run Audio Splitter on two browsers (e.g. Chrome + Chrome Canary) side by side — two independent audio streams from one machine.
Know exactly what your kids are listening to. Connect your own headphones alongside theirs — hear the same YouTube video, game audio, or music stream in real time. No screen-peeking needed. Stay in the loop while they enjoy their content, whether it's homework help videos, audiobooks, or online classes.
How it works: Add your Bluetooth headphones as a second output on your child's browser tab. You hear everything they hear — live. Great for younger kids on shared family computers.
Everyone connects their own Bluetooth headphones to one laptop. Play the same music — each person controls their own volume. Works for parties, events, gym classes, yoga sessions, and group workouts. The ultimate party trick, no expensive PA system needed.
Watch two YouTube videos side by side — one audio in your left ear, the other in your right. Use dual Chrome Helpers as Ch1 + Ch2, then route each channel to L/R. Great for language learning, comparing music mixes, or monitoring two streams at once.
Keep a baby monitor tab playing in one earbud while watching YouTube or listening to music on your speakers. One ear on the baby, the other on your content — perfect for work-from-home parents.
Place Bluetooth speakers in multiple rooms. Play YouTube, Spotify, or Netflix audio everywhere at once — from a single browser tab.
Replace a $200+ hardware monitor controller. A/B between studio monitors and headphones, route bass to a subwoofer, split channels (L/R, Bass, Vocals), apply per-output EQ, and compensate for Bluetooth latency. The full monitor controller workflow — no hardware required.
Wear wired earbuds (like AKG EO-IG955) for the full mix, and Bluetooth over-ears (like Beats Solo 4) for pure bass — at the same time. The over-ears become a personal subwoofer. The earbuds deliver the clarity. You feel the bass and hear everything. Confirmed working with AKG EO-IG955 + Beats Solo 4.
Using Zoom, Google Meet, or Teams in your browser? Route meeting audio to your headphones AND a Bluetooth speaker in the room — so everyone present can hear without crowding around a laptop.
Route audio to both your Bluetooth hearing aid and the internal speaker simultaneously — so you catch every word, with the speaker as backup for anyone else in the room.
Open the same movie in two tabs — one in English, one in Japanese (or any other language). Route the English tab to one person's headphones and the Japanese tab to another's. Everyone watches the same scene at the same time, each in their own language. No dubbing arguments. No subtitles needed.
Two people, one laptop — each watching a completely different movie at the same time. Open Movie A in one tab and Movie B in another. Route Movie A's audio to headphones for the person on the laptop, and route Movie B's audio to a Chromecast or Apple TV in the room. One person watches on the laptop screen, the other watches on the TV. No fighting over what to watch — no second device needed.
Turn your Mac into a personal PA system. Route your microphone through a virtual audio device (BlackHole/VB-Cable), set it as Max's input, and every connected headphone hears you in real time. Perfect for tour guides, fitness instructors, film crew, or a parent calling out to kids in headphones across the house. Note: a small audio delay is present due to virtual device buffering — not suitable for latency-sensitive monitoring, but works great for voice announcements.
Baby's asleep in the same room. Both parents want to watch a movie — but the TV speaker is out of the question. Each parent connects their own Bluetooth headphones and Audio Splitter routes the audio to both simultaneously. Watch together in complete silence, at your own volume, without waking anyone up. No splitter cable, no tangled wires.
A small group of students sharing one laptop screen at the library — each wearing their own Bluetooth headphones. Watch a lecture, tutorial, or study video together in complete silence. No one else in the library hears a thing.
Create an immersive surround experience with 4 Bluetooth speakers. Route Bass LL and Mono LL to your left pair, Bass RR and Mono RR to your right pair. Each speaker gets its own channel split — true directional audio from a single browser tab. No receiver required.
Two people, two pairs of headphones, one laptop. Share a podcast, song, or video together — each at their own volume. No more passing an earbud back and forth.
Free to download. No subscription. No account needed. Start right away.
Chrome Helper captures tab audio. v1.4.1 supports dual channel (Ch1 + Ch2) input.
macOS: Signed & Notarized by Apple
FREE — works right after download:
🔓 UNLOCK ($19.99) — one-time payment:
🎧 New in v1.4: Listen to a podcast on your left ear while music plays on the right — using two Chrome tabs as separate audio sources.
Two input modes: Chrome Helper captures any Chrome tab, and Virtual Device (BlackHole) routes audio from any app — Spotify, VLC, games, Zoom, and more.
Limited by your hardware — typically 2–3 simultaneous BT streams. USB and wired audio devices have no such limit.
Bluetooth 5.0+ headphones recommended for best stability. No Auracast support required to use this app.
Route audio to multiple Bluetooth speakers, headphones, or wired devices at the same time. Each device gets its own audio stream.
Assign left or right stereo channels to different devices. Send L to one speaker, R to another for spatial audio setups.
Extract low frequencies with an adjustable crossover (60–200Hz) and route bass to a dedicated subwoofer device.
Isolate center-panned vocals or stereo instruments using mid/side processing. Route vocals and instruments to separate devices.
Manual delay slider per device to compensate for Bluetooth latency. Fine-tune timing so all speakers play in sync.
Independent volume and mute controls for each output device. Settings are remembered between sessions.
Connect multiple headphones to one laptop — each person controls their own volume. Perfect for parties, dorms, shared spaces, and group workouts.
Place speakers in different rooms and play the same audio everywhere. Turn your home into a synchronized sound system from one browser tab.
Capture at up to 96kHz and configure each output device's sample rate independently. 48kHz for Bluetooth, 96kHz for wired DACs and audio interfaces. Lite & Pro support 48kHz.
Go beyond Chrome tabs. Use BlackHole (macOS) to capture audio from any app — Spotify, VLC, Zoom, games, DAWs — and split it across multiple outputs. Max exclusive.
Chrome Helper captures any browser tab instantly. Virtual Device captures system-wide audio from any application. Max gives you both — switch freely based on your needs.
Bluetooth speakers have different latencies. Slide each device's delay until the sound lines up perfectly — it's oddly satisfying. Once synced, every speaker plays in unison like one giant system.
Detachable window with 12+ visualization modes. Drag to a second monitor, go fullscreen, or project at your next event.
Supports third-party plugins — drop a .js file in the plugins folder to add your own modes.
17 modes included + auto-update via File → Update Plugins. Drop custom .js plugins into the plugins folder to add your own.
Add Audio Splitter Lite from the Chrome Web Store. Free, no account needed.
Click ➕ Add Device to discover your Bluetooth speakers. Keep your built-in speaker as default.
Toggle devices on, adjust volume, and set delay to sync speakers. Pro users can choose L/R, Bass, or Vocals mode.
Click ▶ Start Capture — audio from your active tab plays on all enabled devices simultaneously.
Please read before installing to set the right expectations.
The number of simultaneous audio outputs depends on your system hardware — CPU, Bluetooth chipset, and available bandwidth. Lower-end devices may support fewer speakers.
Bluetooth speakers have inherent latency that varies by device (50–300ms is typical). Use the manual delay slider to sync speakers — this may require some trial and error.
Some DRM-protected content (e.g., 4K Netflix with Widevine L1) may not allow audio capture. Standard HD streams generally work fine.
Audio is processed locally in real-time via the Web Audio API. Quality depends on your Bluetooth codec (SBC, AAC, aptX). Wired/USB outputs have no quality loss.
Works on macOS, Windows, and ChromeOS. Requires Google Chrome (Chromium-based browsers may work but are not officially supported).
Vocal and instrument separation uses mid/side processing (not AI). It works best on professionally mixed stereo tracks where vocals are center-panned. Results are experimental.
Audio Splitter captures audio from the active browser tab only. It does not capture system-wide audio, desktop apps, or microphone input.
On some systems, wired 3.5mm headphones may share the same audio hardware as the internal speaker and appear as a single device. On macOS, they typically show as a separate "External Headphones" output and can be used alongside the internal speaker. Make sure your macOS system default is set to "MacBook Speakers" in Sound settings for both to work.
Common questions and troubleshooting tips.
Chrome restricts access to your audio output devices for privacy. The first time you use Audio Splitter, you must click ➕ Add Device — this opens a setup page that briefly requests microphone permission to unlock device discovery. Once granted, the extension can see all your Bluetooth speakers, headphones, and USB devices. You only need to do this once. After that, your devices are saved and will appear automatically every time you open the extension.
When Audio Splitter captures a tab, Chrome mutes the original tab audio and reroutes it through the extension. Make sure at least one device is toggled ON (the pill switch should be cyan). Also check that the device volume slider is not at 0% and the device is not muted (no red 🔇 icon). If you still hear nothing, click 🔄 Refresh to re-scan your devices, then try Start Capture again.
Make sure both devices are toggled ON in the device list. If the second device is a Bluetooth speaker, confirm it's paired and connected in your system Bluetooth settings before opening the extension. You may also need to click ➕ Add Device to let Chrome discover the Bluetooth output. Some systems limit the number of active Bluetooth audio connections — try disconnecting other Bluetooth devices you're not using.
Yes, but older laptops with Bluetooth 4.0 or 4.2 may struggle to maintain stable simultaneous audio streams to multiple devices. If you experience dropouts or connection issues, a Bluetooth 5.0+ USB dongle is an affordable fix.
Works on both Mac and Windows. Plug in a BT 5.0+ USB-C (or USB-A) dongle and use it as your primary Bluetooth controller. Look for dongles from UGREEN, Baseus, or similar — typically $10–20.
💡 Tip: On Mac, hold Shift + Option and click the Bluetooth menu bar icon → "Turn Bluetooth Hardware Off" to disable the built-in controller and let macOS use the dongle instead.
Bluetooth audio always has some latency (typically 50–300ms depending on the device and codec). Use the ⏱ Delay slider on your wired/built-in speaker to add a matching delay so both speakers play in sync. Start by adding around 100–200ms of delay to your built-in speaker and adjust until they sound aligned. This may require a bit of trial and error.
Volume booster extensions are not compatible with Audio Splitter. Extensions like "Volume Booster", "Volume Master", and similar tools intercept the tab's audio stream — which prevents Audio Splitter from capturing it. You must disable or remove any volume booster extension before using Audio Splitter.
💡 Instead, use Audio Splitter's built-in 🔊 Input Volume slider (up to 300%) and per-device volume controls (up to 400%) to boost audio — no extra extension needed.
macOS is fully supported and confirmed working (tested on MacBook Air M1). Windows and ChromeOS should also work since the extension uses standard Chrome APIs (tabCapture, Web Audio API), but they have not been extensively tested. The extension requires Google Chrome — other Chromium-based browsers (Edge, Brave, etc.) may work but are not officially supported.
For true silent disco, your computer's default audio output must be set to your built-in / internal speakers — this is required for the extension to capture and re-route audio to multiple Bluetooth devices simultaneously.
Once capture starts, simply mute the Default device row in the extension popup. This silences the internal speaker while keeping all your Bluetooth outputs active. The popup will show a green "Silent disco — internal speaker muted" confirmation when active.
💡 Tip: each person connects their own Bluetooth headphones to the same laptop, adds it as a device, and gets their own volume control.
Yes — if you use the browser version. Audio Splitter works with any browser tab, including the Zoom web client, Google Meet, and Microsoft Teams web. It captures all audio in the tab, including WebRTC call audio.
How to set it up:
⚠️ The Zoom/Teams desktop app is not a browser tab and cannot be captured. Use the web version for this to work.
Yes! Add both your AirPods and your over-ear headphones as output devices, toggle both ON, and audio plays through both simultaneously. Great if you want noise cancellation from your AirPods while also using a wired headset, or if you want to share audio with someone next to you without splitting an earbud.
Yes. If your hearing aid supports Bluetooth audio streaming, add it as an output device alongside your internal speaker or headphones. Both will play simultaneously, so you get the clarity of your hearing aid while anyone else in the room can still hear from the regular speaker.
This also works for bone conduction headphones paired with earbuds — or any accessibility device that connects via Bluetooth audio.
No. All audio processing happens 100% locally on your device using the Web Audio API. No audio is recorded, stored, or transmitted anywhere. The extension has no analytics, no tracking, and no external network requests (except for Pro license validation via LemonSqueezy). See our Privacy Policy for full details.
Check your macOS system volume. Audio Splitter controls the digital gain per device, but the final output still goes through your system volume. If macOS volume is near zero, you won't hear anything even with Audio Splitter's slider at 100%.
Tip: On macOS, wired 3.5mm headphones appear as "External Headphones" — a separate device from internal speakers. Both can be used simultaneously! Set your macOS default output to "MacBook Speakers" in Sound settings, then enable both in Audio Splitter.
No, Chrome only. Audio Splitter relies on two Chrome-specific APIs that Firefox does not support: AudioContext({ sinkId }) for routing audio to specific output devices, and chrome.tabCapture for capturing tab audio. Neither API has a Firefox equivalent, so a Firefox port is not possible at this time.
Audio Splitter works on any Chromium-based browser — Google Chrome, Microsoft Edge, Opera, and Brave.
Not within a single Chrome instance. Chrome's tabCapture API only allows capturing one tab at a time per extension. However, you can use two Chrome instances — each runs its own independent extension with its own audio capture.
✅ Confirmed working: Install Audio Splitter on both Chrome and Chrome Canary (or use two Chrome profiles). Capture a tab in each instance and route to different devices — e.g. one to Bluetooth speaker, the other to wired headphones. Each instance runs independently.
Yes. Audio Splitter Max supports virtual audio devices as input sources — allowing you to route audio from any desktop app (Spotify, VLC, games, DAWs) into the splitter.
Confirmed working with BlackHole (free virtual audio driver for macOS). Install BlackHole, set it as the output device in your app, then select it as the input source in Audio Splitter Max.
Windows: VB-Audio Virtual Cable (free) works the same way.
Virtual device input is a Max-only feature — not available in Lite or Pro (Chrome extension only).
No. Audio Splitter Max is code-signed and notarized by Apple — simply double-click the DMG, drag it to your Applications folder, and launch. No security warnings, no special steps needed.
On Windows, run the .exe installer and follow the setup wizard.
No refunds. Audio Splitter Pro is a digital product with a no-refund policy. We strongly recommend trying the Lite (free) version first to confirm the extension works with your hardware and Bluetooth devices before purchasing Pro. The Lite version includes all core functionality (2 devices, stereo mode, volume, delay) so you can fully evaluate compatibility.
Bluetooth audio has inherent latency caused by the wireless codec (typically 100–300ms depending on the codec: SBC, AAC, aptX, LDAC). This is a hardware limitation that no app can eliminate — the delay happens between your computer's Bluetooth chip and the speaker.
Audio Splitter Max automatically detects each device's reported latency and applies Auto-Sync when capture starts — it adds compensating delay to faster devices so they match the slowest one. However, the OS-reported latency doesn't always reflect the full end-to-end Bluetooth delay.
Manual fine-tuning is recommended. After Auto-Sync runs, listen to the actual audio on your headphones and adjust the Delay slider on each device by ear until all outputs sound in sync. For example, if your wired speaker still plays ahead of your Bluetooth headphone after Auto-Sync, increase the wired speaker's delay until they match.
Short answer: to detect your audio output devices. No audio from your microphone is ever recorded or used.
This is a limitation of how browsers and Chromium-based apps (including Electron, which Audio Splitter Max is built on) handle device discovery. When the app calls the standard API to list your audio output devices — speakers, headphones, Bluetooth devices — the operating system intentionally returns blank device names unless microphone access has been granted first. This is a Chrome/Chromium privacy design to prevent device fingerprinting.
To work around this, Audio Splitter Max briefly requests microphone access, reads the device list to get proper device names, and immediately stops the microphone stream. Your mic is active for less than a second and no audio is captured, stored, or transmitted.
💡 You can verify this yourself: after granting permission, the microphone indicator in your menu bar (macOS) disappears almost immediately — because the app stops it right away.
During capture, a colored badge appears next to each device's delay slider showing the OS-reported device latency:
Green (<50ms) — Wired or low-latency connection.
Yellow (50–150ms) — Moderate latency (some Bluetooth codecs like aptX or AAC).
Red (>150ms) — High-latency connection (SBC or LDAC codec).
Note: These values are reported by the operating system and may not reflect the full end-to-end Bluetooth delay. The actual perceived latency is often higher. Use the badges as a guide to identify which devices need more manual delay compensation.
It depends on your Bluetooth codec. Most Bluetooth headphones use codecs that cap out well below 96kHz:
| Codec | Max Sample Rate |
|---|---|
| SBC | 44.1 kHz |
| AAC | 44.1–48 kHz |
| aptX | 44.1 kHz |
| aptX HD | 48 kHz |
| LDAC | 96 kHz ✓ |
| aptX Adaptive | up to 96 kHz (newer firmware) |
| LC3 (LE Audio) | 48 kHz |
Only LDAC and aptX Adaptive support 96kHz. Headphones that support LDAC at 96kHz include the Sony WH-1000XM5/XM4, Sony WF-1000XM5, and select Sennheiser, Audio-Technica, and Jabra models.
For most Bluetooth headphones, 48kHz is the optimal output setting — same audible quality with less CPU usage.
macOS does not support LDAC natively — Apple's Bluetooth stack only supports SBC and AAC. There is no way to enable LDAC on macOS without a dedicated Sony DAC/dongle or third-party USB Bluetooth adapter with LDAC support.
Windows supports LDAC only with a compatible Bluetooth adapter and driver. Even then, LDAC at its highest quality (990kbps, 96kHz/24-bit) requires a strong, stable signal — in real-world conditions it often drops to 660kbps or 330kbps.
In practice, even if your headphones support 96kHz LDAC, the OS typically negotiates the codec down. Most Bluetooth headphones will operate at 44.1–48kHz regardless of their spec sheet.
96kHz output is beneficial for:
Wired headphones or speakers connected via USB DAC or 3.5mm — these pass audio at the full sample rate without codec negotiation.
External audio interfaces (Focusrite, MOTU, etc.) that natively support high sample rates.
Virtual device routing (e.g., BlackHole to a DAW) where you want to preserve the full input fidelity.
For the input side, the sample rate is determined by your virtual audio device (e.g., BlackHole). Change the device's rate in Audio MIDI Setup on macOS — the input dropdown in Audio Splitter Max reflects the rate you request, but the device ultimately decides what it delivers.