How to Start Streaming on Twitch from Your PC

What You Need to Stream on Twitch

To stream on Twitch from your PC, you need a Twitch account, streaming software, and a game or process to broadcast. Your PC itself is the main tool — the software does the work of capturing what's on your screen and sending it to Twitch's servers. You don't need expensive equipment to start; most gaming PCs have everything required built in.

The three core pieces are a Twitch account (free to create), streaming software like OBS Studio or Streamlabs OBS (both free), and content to stream — a game, creative process, or just your desktop. Your internet connection matters: Twitch recommends at least 2.5 to 4 megabits per second upload speed for 720p streams at 30 frames per second, and 6 to 8 megabits per second for 1080p at 60 frames per second. You can check your upload speed on speedtest.net.

Key Takeaways

Create a free Twitch account, then go to Creator Dashboard to find your Stream Key, which you paste into your streaming software to connect to Twitch.
OBS Studio and Streamlabs OBS are the most common free streaming software options; both let you capture your game, add overlays, and control audio levels.
You must configure your streaming software with your Stream Key and choose your bitrate (the amount of data sent per second) based on your upload speed.
Test your stream settings before going live by running a test broadcast or checking your bitrate and frame rate in the software's settings.

Setting Up Your Twitch Account and Stream Key

Go to twitch.tv and create a free account with an email address and password. Once logged in, click your profile icon in the top right corner and select Creator Dashboard. On the left sidebar, click Settings, then select Stream. You will see your Stream Key — a long string of characters that connects your streaming software to your Twitch channel. Copy this key and keep it private; anyone with it can broadcast to your channel.

The Stream Key is what your streaming software uses to send video to Twitch. You will paste it into your software's settings, not into Twitch itself. If you ever think someone has seen your key, go back to Stream settings and click Regenerate Stream Key to create a new one. The old key stops working when ready.

Choosing and Installing Streaming Software

OBS Studio is the most widely used free option and works on Windows, Mac, and Linux. read it from obsproject.com, run the installer, and follow the setup wizard. It has a steeper learning curve than some alternatives but gives you full control over every setting.

Streamlabs OBS is built on OBS but adds a friendlier interface and built-in alerts and overlays. read it from streamlabs.com. It uses more system resources than OBS Studio, so if your PC is older or lower-powered, OBS Studio may perform better.

Both are free and do the same core job: capture your screen or game window, mix in audio from your microphone and game, and send the stream to Twitch. Choose whichever interface feels more natural to you — you can always switch later. Many streamers start with Streamlabs OBS for ease and move to OBS Studio as they learn more.

Configuring Your Streaming Software

Open your streaming software and look for Settings or Preferences. Go to the Stream section. Select Twitch as your service, then paste your Stream Key into the Stream Key field. Do not share this key with anyone.

Next, set your bitrate — the amount of data your stream sends per second, measured in kilobits per second (kbps). For 720p at 30 frames per second, use 2500 to 4000 kbps. For 1080p at 60 frames per second, use 6000 to 8500 kbps. If your upload speed is lower than these numbers, lower your bitrate or resolution. A stream that buffers constantly will lose viewers.

In the Video section, set your base resolution (the resolution of your game or screen) and output resolution (what viewers see). For most streamers, these are the same. Set your frame rate to 30 or 60 frames per second depending on your PC's power and your internet speed. Higher frame rates look smoother but require more upload speed.

Adding Your Game or process to the Stream

In OBS Studio, click the plus sign under Sources and select Game Capture or Window Capture. Game Capture automatically detects running games and captures them at full performance. Window Capture lets you stream a specific window — useful for streaming creative software, Discord, or a web browser. Select the game or window you want to stream and click OK.

In Streamlabs OBS, the process is similar: click Add Source under Sources, choose Game Capture or Window Capture, and select what you want to broadcast. You can add multiple sources — for example, your game window plus a browser window showing chat — and position them on your canvas. Only what appears in the red rectangle on your canvas will be visible to viewers.

Test your capture by starting the game or opening the process. You should see it appear in the preview window in your streaming software. If it does not appear, try restarting the software or the game.

Testing Your Stream Before Going Live

Before you broadcast to your channel, run a test stream. In OBS Studio, go to Settings, Output, and check the box next to Enable Streaming to Twitch without pushing to channel. This sends a test stream to Twitch that only you can see. Click Start Streaming, wait 30 seconds, then stop the stream. Go to your Creator Dashboard and check the Stream Health indicator — it shows your bitrate, frame rate, and any dropped frames. Dropped frames mean your PC or internet could not keep up; lower your bitrate or resolution if you see many.

In Streamlabs OBS, you can run a test by clicking the settings icon next to the Start Stream button and selecting Test Stream. This does the same thing: sends a private test broadcast so you can check your settings without going live to your audience.

Check that your microphone audio is audible, your game or process is clear, and your bitrate stays steady. If your bitrate spikes or drops, your stream will buffer. Once your test looks good, you are ready to go live.

Going Live and Managing Your Stream

When you are ready to broadcast, open your streaming software, make sure your game or process is running and visible in the preview, and click Start Streaming. Your stream is now live on your Twitch channel. Anyone can find you by going to your channel URL, which is twitch.tv/[your username].

While streaming, keep an eye on your bitrate and frame rate in the software's stats. If you see dropped frames or your bitrate drops below your target, your internet or PC is struggling. Lower your bitrate or close other applications. You can also check your Stream Health in your Creator Dashboard on another monitor or device to see real-time performance data.

To end your stream, click Stop Streaming in your software. Your broadcast ends when ready, and your channel goes offline. Twitch saves a recording of your stream to your Videos page for 14 days (or longer if you are a Twitch Affiliate or Partner), so viewers can watch it later even if they missed it live.

Frequently Asked Questions

Do I need a capture card to stream PC games?

No. A capture card is only needed if you want to stream from a console like PlayStation or Xbox, or if you want to capture video from another device. For PC games, your streaming software captures directly from your graphics card, which is faster and cheaper.

What if my PC is not powerful enough to stream?

Lower your output resolution to 720p and your frame rate to 30 fps, then lower your bitrate to 2500 kbps. Close other applications while streaming. If your PC still struggles, you may need to upgrade your graphics card or processor, but many older PCs can stream at lower settings without issue.

Can I stream multiple games or switch games during a stream?

Yes. In your streaming software, you can create multiple scenes — each with a different game or process as the source. Click between scenes to switch what viewers see. You can also right-click a source and select Deactivate to hide it without removing it, then set up it again later.

Why does my stream keep buffering or dropping frames?

This usually means your bitrate is too high for your upload speed, or your PC cannot encode video fast enough. Lower your bitrate by 500 to 1000 kbps and test again. If it still drops frames, lower your resolution or frame rate. You can also check your upload speed on speedtest.net to confirm it matches your bitrate.

Is streaming to Twitch free?

Yes. Creating an account, streaming, and using Twitch's basic features are all free. Twitch makes money from ads shown to viewers, not from streamers. You can earn money through subscriptions, bits, and ads once you become a Twitch Affiliate, but that is optional.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.