Two popular YouTube extensions, two very different philosophies. Here's an honest look at what each one does, where they overlap, and which one fits your workflow.
SponsorBlock is the best tool if you only need crowdsourced sponsor-segment skipping and already have a separate ad blocker. Clify is the better pick if you want sponsor skipping, ad blocking, Shorts removal, audio EQ, cloud sync, and more — all in a single extension. Clify includes SponsorBlock's data natively, so you don't lose anything by switching.
The table below compares the two extensions across the categories that matter most to YouTube viewers in 2026. Both are free and open source, but their scope is very different.
| Feature | Clify | SponsorBlock |
|---|---|---|
| SponsorBlock crowdsourced skipping | Yes — integrated | Yes — core feature |
| Video ad blocking (pre-roll, mid-roll, post-roll) | Yes — 5-layer engine | — |
| Overlay / banner ad blocking | Yes | — |
| YouTube Shorts remover | Yes — feed, sidebar, search, tab | — |
| Channel blocker | Yes — fake channels + custom list | — |
| Keyword blocker | Yes — exact-match, 5 000+ keywords | — |
| Audio equalizer | Yes — 10-band presets | — |
| Subtitle styling | Yes — font, size, color, background | — |
| Podcast mode (audio-only) | Yes | — |
| Cloud sync across devices | Yes — end-to-end encrypted | — |
| Scheduled blocking | Yes | — |
| Live stream chat cleaner | Yes | — |
| Open source | Yes — MIT license | Yes — GPL-3.0 |
| Free to use | Yes | Yes |
| Browser support | Chrome, Firefox, Edge, Kiwi, Quetta, Yandex, and 40+ Chromium browsers | Chrome, Firefox, Edge, Opera, and most Chromium browsers |
Both extensions are completely free with no premium tier. Clify is MIT-licensed; SponsorBlock is GPL-3.0. Neither collects personal data beyond what's needed for their core functionality.
SponsorBlock is a crowdsourced browser extension that automatically skips sponsored segments inside YouTube videos. When a creator includes a paid promotion — say, a 60-second NordVPN read in the middle of a tech review — the community flags the start and end timestamps. SponsorBlock then skips those sections for everyone else who has the extension installed.
Clify is an all-in-one YouTube toolkit that aims to replace the stack of separate extensions most power users end up installing. Rather than juggling an ad blocker, SponsorBlock, a Shorts hider, an audio equalizer, and a dozen other small utilities, Clify bundles everything into a single extension with a unified settings panel.
Clify integrates SponsorBlock's crowdsourced API directly. When you enable the sponsor-skipping feature in Clify, it queries the same community database that the standalone SponsorBlock extension uses. You get identical skip-segment coverage with the same accuracy and the same segment categories. The key difference is that Clify doesn't stop there — it layers additional tools on top of the SponsorBlock data to give you a more complete experience.
SponsorBlock is an excellent tool, and for some users it's the only extension they need. If you already run a dedicated ad blocker like uBlock Origin and your main frustration is baked-in sponsor reads inside videos, SponsorBlock solves that problem completely. Its crowdsourced database is mature, its accuracy is high, and its lightweight design means it won't slow down your browsing.
You might prefer SponsorBlock if you:
There's no shame in sticking with SponsorBlock alone. It's a well-built project with a dedicated community, and if it does everything you need, there's no reason to switch.
Clify makes sense when you want to simplify your extension setup without sacrificing functionality. The average YouTube power user runs four to five extensions: an ad blocker, SponsorBlock, a Shorts hider, maybe an audio tool, and a channel muter. Each one adds its own settings page, its own update cycle, and its own potential for conflicts with other extensions.
Clify replaces all of those with a single extension. You get the same sponsor-skipping data from SponsorBlock's community database, plus ad blocking, Shorts removal, audio EQ, subtitle styling, cloud sync, and more. Fewer extensions means fewer things to update, fewer settings pages to manage, and fewer chances for two extensions to fight over the same DOM element.
Clify is especially worth considering if you:
SponsorBlock's community has submitted over one billion individual skip segments since the project launched. That's a staggering amount of crowd labor — users voluntarily timestamping sponsor reads, intros, outros, and filler across millions of YouTube videos to help other viewers save time.
Clify integrates SponsorBlock's public API, which means you get access to the exact same crowdsourced segment database. When someone submits a skip timestamp in the SponsorBlock community, Clify users see it too. There's no separate Clify database for sponsor segments — it's the same data, served through a different interface.
The average YouTube power user runs four to five browser extensions just to get a clean viewing experience: an ad blocker, SponsorBlock, a Shorts remover, a channel hider, and often an audio or UI tweak tool. Each extension adds memory overhead, potential conflicts, and another settings page to maintain. Clify was designed to collapse that entire stack into a single install.
Yes. Clify integrates SponsorBlock's public API directly. When sponsor-skipping is enabled, Clify queries the same community-maintained segment database that the standalone SponsorBlock extension uses. You get identical coverage, identical accuracy, and access to all the same segment categories (sponsors, intros, outros, filler, non-music sections, and more). There's no separate or inferior database — it's the same data.
It's technically possible, but not recommended. Since both extensions query the same SponsorBlock data, running them together would cause double-skipping — the segment would be detected and skipped twice, which can cause timing glitches, progress bar flickering, or unexpected jumps. The simplest approach is to pick one. If you're using Clify, disable the standalone SponsorBlock extension, and vice versa.
Yes, Clify is completely free with no premium tier, no subscription, and no in-app purchases. It's released under the MIT license, which is one of the most permissive open-source licenses available. You can inspect the full source code on GitHub, modify it, or contribute to the project. There are no ads inside Clify itself, and no user data is collected or sold.
Clify supports over 40 browsers across desktop and mobile. On desktop, it works with Chrome, Firefox, Microsoft Edge, Brave, Opera, Vivaldi, Arc, and any other Chromium-based browser. On Android, it runs in Kiwi Browser, Quetta Browser, and Yandex Browser, all of which support Chrome extensions on mobile. Firefox for Android is also supported. SponsorBlock supports Chrome, Firefox, Edge, and Opera, with broader Chromium compatibility as well.
No. SponsorBlock only skips sponsor segments that are baked into the video itself — the parts where a creator reads an ad for a product or service. It does not block YouTube's own video ads (the pre-roll, mid-roll, and post-roll ads served by Google), nor does it remove overlay banners, promoted content, or any other ad format on the YouTube platform. For that, you need a separate ad blocker.
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