Every YouTube channel has a name you can see and an ID you usually cannot. Here is what a Channel ID is, why it matters, and when you need one.
A YouTube Channel ID is a unique, permanent identifier assigned to every channel on YouTube. It looks like this:
UCBcRF18a7Qf58cCRy5xuWwQ
Always starts with UC. Always 24 characters. Never changes.
While YouTube lets channels pick handles, custom URLs, and display names — all of which can be edited — the Channel ID is permanent. It is the one thing about a channel that cannot be changed.
YouTube channels have several identifiers. Here is how they differ:
| Identifier | Example | Can Change? | Use Case |
|---|---|---|---|
| Channel ID | UCBcRF18a7Qf58cCRy5xuWwQ |
Never | APIs, automations, stable references |
| Handle | @mkbhd |
Yes | Human-readable URL, display |
| Custom URL | youtube.com/c/mkbhd |
Rarely | Legacy custom URLs |
| Username | marquesbrownlee |
Legacy only | Old /user/ format channels |
| Display Name | "Marques Brownlee" | Yes | Shown in YouTube UI |
The Channel ID is the only identifier guaranteed to be stable. Everything else is a display layer on top of it.
UCBcRF18a7Qf58cCRy5xuWwQ
Breaking it down:
- UC — prefix for all standard channel IDs (stands for "User Channel")
- BcRF18a7Qf58cCRy5xuWwQ — 22 base64-encoded characters that uniquely identify the channel
- Total length: always 24 characters
Some special YouTube entities use different prefixes:
- UC — regular channels (what you will need 99% of the time)
- PL — playlists
- HL — YouTube highlights
For casual YouTube browsing, you never need a Channel ID. You need one when you start working with YouTube programmatically or with third-party tools.
The YouTube Data API v3 uses Channel IDs as the primary identifier for all channel-related requests. Whether you are fetching subscriber counts, listing videos, getting channel metadata, or checking upload history — you reference the channel by ID.
GET /youtube/v3/channels?part=snippet&id=UCBcRF18a7Qf58cCRy5xuWwQ&key=API_KEY
You cannot look up a channel by display name reliably through the API (too many name collisions). Channel ID is the right input.
Tools like vidIQ, TubeBuddy, Social Blade, and most YouTube analytics platforms use Channel IDs internally. When you add a channel to track, they may ask for the URL — but they resolve it to a Channel ID behind the scenes.
If you are managing many channels (as an agency or MCN), working directly with Channel IDs is more reliable than using display names or handles.
Platforms like n8n, Make (Integromat), and Zapier all have YouTube nodes. Those nodes reference channels by ID.
Building a workflow that monitors a competitor's upload frequency? You need their Channel ID. Automating a report on your clients' channels? Channel IDs are the stable input you feed into the workflow.
Some YouTube embed configurations and custom player setups reference channels by ID rather than URL. If you are building a website that displays a specific channel's latest videos, Channel IDs are the reliable anchor.
Tracking competitor channels in any serious analytics setup means knowing their Channel IDs. It ensures you are tracking the right channel even if they rebrand, change their handle, or update their URL.
Fastest method: Paste the channel URL into channelid.app. Works with any format — @handle, /channel/, /c/, /user/.
Manual method (any browser):
1. Open the channel page
2. Press Ctrl+U (Windows) or Cmd+U (Mac) to view page source
3. Search for "channelId" — the value next to it is the Channel ID
Your own channel: 1. Go to studio.youtube.com 2. Settings → Channel → Advanced settings 3. Channel ID is listed there
For a full breakdown of all 5 methods, see: How to Find Any YouTube Channel ID
Can a Channel ID change?
No. Channel IDs are permanent. This is what makes them reliable for API integrations and long-running automations. Even if a channel changes its name, handle, or URL, the Channel ID stays the same.
Is a Channel ID the same as a channel URL?
No. A channel URL is human-readable (like youtube.com/@mkbhd). A Channel ID is the underlying technical identifier (UCBcRF18a7Qf58cCRy5xuWwQ). Some channel URLs do contain the Channel ID — specifically URLs in the /channel/UCxxxxxx format.
Do all YouTube channels have a Channel ID?
Yes. Every channel on YouTube — public or private, large or tiny — has a Channel ID.
What is the UC prefix for?
It stands for "User Channel" — a legacy naming convention from early YouTube. All standard channel IDs start with UC. There are no exceptions for normal channels.
Can I find a Channel ID from just the channel name?
Not reliably. Many channels share similar names. The YouTube API's search endpoint can return candidates, but you need to verify you have the right one. The safest approach is to start from the channel's URL.
A YouTube Channel ID is the permanent, unique technical identifier for any YouTube channel. Unlike handles or display names, it never changes — making it the correct input for the YouTube Data API, automation tools, analytics platforms, and any integration where you need a stable channel reference.
Need to find one? channelid.app resolves any YouTube URL to its Channel ID in one click.
Paste any channel URL — @handle, /c/, /channel/, or /user/ format — and get the Channel ID in one click.
Try channelid.app — Free