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To show a countdown to viewers, add the timer to the scene your encoder sends to YouTube. In OBS Studio, the simplest route is to load a timer webpage as a Browser Source, position it in a scene, then check the YouTube preview before going live. A timer window open elsewhere on your computer will not appear in the broadcast unless it is part of that outgoing scene.
Add a countdown timer in OBS Studio
- Choose the scene. In OBS, select or create the scene that should display the countdown, such as a “Starting Soon” scene. Keep in mind that only sources in the scene being sent to the encoder are part of the stream.
- Add a Browser Source. In the Sources dock, select +, choose Browser, and enter the timer page’s browser-view URL. OBS Browser Source can load web pages from a URL or from the local machine. See the OBS Browser Source documentation.
- Set the viewport dimensions. Enter width and height to suit the timer layout, then position and resize it on the OBS canvas. OBS documents 800 × 600 as the Browser Source default viewport; that is not a required stream resolution.
- Check appearance and placement. Keep the timer within the intended safe area and away from the host, captions, or important footage. If it has an opaque background or unwanted controls, check whether the timer provider offers a transparent or overlay view. Support for transparency and styling varies by timer; do not assume a universal setting or CSS fix.
- Connect OBS to YouTube. In YouTube Studio, open Create → Go Live and create or select the stream in Live Control Room. Copy the stream URL and stream key into OBS’s stream settings. YouTube’s encoder setup instructions explain this connection. Treat the stream key as private: YouTube describes it as the credential that routes your encoder’s feed, and an owner or manager can reset it in Live Control Room (manage live stream settings).
- Start the encoder and inspect YouTube’s preview. Confirm the timer is visible in the incoming preview and check sound separately. For a scheduled broadcast, YouTube’s documented flow is to wait for the preview, then select Go live. Test in advance and monitor stream health using YouTube’s encoder settings and testing guidance.
Choose a timer that fits the show
The timer URL, styling, start behavior, and controls depend on the implementation you choose. Before relying on it during an event, check whether it meets the needs of your scene:
- Transparency: Does it have a transparent overlay view, or will it cover the video with a background?
- Start and reset: Does it begin automatically when loaded, or must someone start it? Can it be reset if the program is delayed?
- Control: Can a producer control it remotely, if that matters to your workflow?
- Offline behavior: Does the timer need an internet connection, or can it load locally?
- Layout and sound: Can you customize its dimensions and appearance? Does it need an audio alert, and is that alert appropriate for the broadcast?
OBS supports loading a URL or local page, but its documentation does not prescribe a countdown script or behavior. TimerBox, for example, describes copying a generated URL into an OBS Browser Source (TimerBox); Stagetimer demonstrates a browser timer and transparent background in an OBS scene (Stagetimer tutorial). These are service examples, not independent tests or endorsements. Follow the selected provider’s current instructions.
Do not confuse a countdown with YouTube’s break overlay
YouTube’s break overlay is intended to show an away slate while the streamer takes a break. It is not the same as a creator-designed “Starting Soon” countdown. YouTube’s setup uses a Browser Source in the encoder and recommends testing the overlay with its Take a Break flow. The overlay does not control audio sources, so a visual change alone will not mute a microphone. See YouTube’s break overlay help.
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#1 Best Overall
Elebase USB to USB C Adapter for iPhone 18 Pro Max,USBC Car Charger Adapter
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
Troubleshoot a missing or incorrect timer
- The timer does not appear in OBS: Confirm the intended scene is active, the Browser Source URL is correct, and its width and height are nonzero and large enough for the page. OBS lists the URL and viewport fields in its Browser Source documentation.
- The timer has a background or extra controls: Look for a provider-supported transparent overlay URL or display customization. Not every timer offers these options; Stagetimer’s tutorial is an example, not proof of universal support (tutorial).
- You see it locally, but viewers do not: Make sure the timer is in the scene actually being sent to the encoder. Then check the incoming YouTube Live Control Room preview before starting the broadcast, as advised in YouTube’s testing guidance.
- Your encoder does not have an OBS-style Browser Source: Browser-source support differs between encoders. YouTube notes that not all encoders support browser sources in the same way; consult the encoder’s own current help (YouTube break overlay help).
- You suspect the stream key was exposed: Keep it private and reset it in Live Control Room. YouTube explains stream key management at Manage live stream settings.
Or let it run in the cloud
If the goal is to keep uploaded video looping as a 24/7 YouTube stream, StreamNeo is a separate cloud option—not a way to put a countdown over a camera broadcast. Upload a recording or build a playlist, add your YouTube stream key once, and go live. Nothing has to stay on at home; it streams the upload as made, up to 4K 60fps, at one price per slot, and automatically recovers if YouTube drops the stream. The first day is free with no card. Monthly billing is $9.99 per month. See StreamNeo, then start your free first day.
Quick Recap
Bestseller No. 5
Best Value
Anker USB C Hub, 5-in-1 USBC to HDMI Splitter with 4K Display
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Rank #4
Sale
UGREEN USB to USB C Adapter Combo 4-Pack, 10Gbps USB C Converter Space Gray
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Rank #3
Sale
Anker USB C Hub, 7in1 Multi-Port USB Adapter, 4K@60Hz USBC to HDMI Splitter
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Rank #2
Anker USB-C Hub, 5-in-1 USB Hub for Laptops, 4K HDMI Multiport Adapter
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
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