SponsorBlock Integration

Tired of sponsor segments interrupting your favorite videos? SponsorBlock can remove them — along with intros, outros, and other filler content — so you get straight to the good stuff.

What is SponsorBlock?

SponsorBlock is a community-powered database where users mark the timestamps of sponsor reads, self-promotions, and other skippable segments in YouTube videos. Millions of people use it to skip these segments while watching.

Fetchii takes this a step further: instead of just skipping segments during playback, it can remove them from your downloaded files entirely, or mark them as chapters so you can skip them in any player.

Fetchii uses SponsorBlock data from sponsor.ajay.app, licensed under CC BY-NC-SA 4.0. SponsorBlock is an independent community project and isn't affiliated with Fetchii.

What Gets Removed?

SponsorBlock identifies eight types of content. You choose which ones Fetchii handles:

Category	What It Is
Sponsor	Paid promotions ("This video is sponsored by...")
Self-promotion	Creator plugging their merch, Patreon, etc.
Interaction reminder	"Like and subscribe" reminders
Intro	Animated intro sequences
Outro	End cards, credits, "see you next time"
Preview/Recap	Clips of what's coming up, or a recap of earlier parts
Non-music	Talking sections in music videos
Filler	Off-topic tangents, jokes

SponsorBlock is off by default, and no category is ticked until you choose one.

Getting Started

Quick Setup

To enable SponsorBlock:

Open Fetchii → Settings → Downloads and scroll to the SponsorBlock group
Turn on Enable SponsorBlock
Pick an Action: Remove segments or Mark as chapters
Under Categories, tick the segment types you want handled — Sponsor, Self-promotion and Interaction reminder are a good start
Start downloading

If no category is ticked, Fetchii reminds you: "Select at least one category, or SponsorBlock will have no effect."

Which Downloads It Applies To

The setting applies to new downloads only; videos you've already downloaded aren't changed. There's no per-download switch — turn the setting off before downloading a video you want complete. Livestream recordings are never processed.

Customizing What Gets Removed

There's one action for all the categories you tick:

Remove segments: Cut them out completely — the segments won't appear in your downloaded video. This can't be undone.
Mark as chapters: Keep the content but add chapter markers so you can easily skip it in any player

Categories you don't tick are left exactly as-is.

Recommended Configurations

The "Just remove the ads" setup: Remove segments; tick Sponsor, Self-promotion and Interaction reminder. Everything else stays. This is what most people want.

The "Pristine video" setup: Remove segments; tick everything except Intro and Outro. Great for archiving content where you want just the core material.

The "Keep it all but mark it" setup: Mark as chapters, with every category you care about ticked. Nothing is removed — useful when you want the complete video but still want easy skipping.

How It Works Behind the Scenes

When you download a YouTube video with SponsorBlock enabled:

Fetchii looks up the video in the SponsorBlock database (takes less than a second)
Fetchii downloads the video as usual
If segments are found, they're cut out of the file or added as chapters before the download finishes

Removing segments means re-processing the file, so it can add a little time to your download — the row shows "Removing segments..." while it runs.

Chapter Markers Explained

When you choose Mark as chapters, Fetchii adds chapter markers to your video file. These are navigation points that most media players support. They're embedded even if Embed chapters (in the Metadata group) is off.

In practice, this means you'll see named chapters in your player's timeline — things like "Sponsor" or "Interaction Reminder" — that you can click to skip past. It's a nice middle ground if you're not sure you want content permanently removed.

To access chapters:

QuickTime: View > Show Chapters
VLC: Playback > Chapters
IINA: Right-click the timeline

Good to Know

Coverage Varies

SponsorBlock works best on popular videos. A viral video might have dozens of verified segment reports, while a smaller creator's latest upload might not have any data yet.

If there's no SponsorBlock data for a video, Fetchii just downloads it normally — no harm done.

YouTube Only

Currently, SponsorBlock only has data for YouTube. Videos from other platforms will download without any segment processing.

Privacy-Friendly

When checking for segments, only the video is looked up on SponsorBlock's servers — never your account, your browsing or any personal information. No account or login required.