Alternative comparison
ImprovedTube Alternative with Bookmarks and Cloud Sync
ImprovedTube is an impressive open-source project with 170+ features for tweaking the YouTube interface. But bookmarking, organization, and cloud sync are not among them. If you need to build a video library, YouTube Bookmark Pro fills the gap ImprovedTube leaves open.
What ImprovedTube does well
ImprovedTube is a community-driven, open-source Chrome extension that has earned a loyal following by offering an enormous range of YouTube UI customizations. The feature count is genuinely impressive: over 170 individual tweaks, from custom themes and player size adjustments to comment behavior changes, default quality settings, and layout modifications.
The open-source nature of the project is a real strength. The code is publicly available on GitHub, which means anyone can audit it, contribute to it, or fork it. For users who care about transparency and privacy, knowing exactly what code runs in their browser is valuable. The extension is also completely free, with no paid tier and no premium features locked behind a subscription.
For users who want to reshape the YouTube interface - change how thumbnails display, customize the player, adjust sidebar behavior, modify comment sections - ImprovedTube is one of the most comprehensive options available. It is a UI customization powerhouse.
But UI tweaks and video organization are different things entirely. ImprovedTube can change how YouTube looks. It cannot change how you save, find, and manage the videos you watch.
Where ImprovedTube falls short for organization
No video bookmarking
Despite having 170+ features, ImprovedTube does not include a video bookmarking system. There is no way to save a video to a personal library, no mechanism to build a collection of content you want to return to. If you find a valuable tutorial or reference video, ImprovedTube has no tool to help you save it. You are left relying on YouTube's built-in Watch Later list, which caps at 5,000 videos with no search, no categories, and no notes.
No timestamps
You cannot mark a specific moment in a video with ImprovedTube. For students who need to bookmark the exact minute where a concept is explained, or for professionals who want to reference a specific segment of a conference talk, the lack of timestamp bookmarking means context is lost. You save the video somewhere, but you cannot save the moment.
No notes or annotations
ImprovedTube lets you change how YouTube's interface looks, but it does not let you add your own information to it. There are no notes, no annotations, no way to attach personal context to a video. The extension modifies the platform experience. It does not let you build on top of it.
No cloud sync
ImprovedTube stores its settings locally. There is no cloud sync, no backup, no cross-device access. If you spend time configuring 170+ settings exactly how you want them, that configuration exists only in your current browser profile. Reinstall Chrome, switch computers, or clear browser data, and the configuration is gone. For video bookmarks, the problem would be even worse - but since ImprovedTube does not offer bookmarks, the sync gap only affects settings.
No creator analytics
ImprovedTube is built for viewers who want to customize their experience. It has nothing for creators. No channel performance metrics, no competitor comparison, no comment sentiment analysis. Creators who use ImprovedTube for UI tweaks need entirely separate tools for the analytics side of their work.
No subscription management
While ImprovedTube can tweak how the subscription page looks, it does not add subscription management features. There are no folders, no channel grouping, no health indicators, and no auto-routing rules. The extension changes the visual presentation of your subscriptions without adding tools to organize them. For users with hundreds of subscriptions, the organizational challenge remains.
Feature comparison
Side-by-side as of April 2026.
| Feature | ImprovedTube | YouTube Bookmark Pro |
|---|---|---|
| UI customization (170+ tweaks) | Yes (open-source) | No |
| Custom themes | Yes | No |
| Video bookmarks | No | Yes (Free) |
| Timestamps | No | Yes (Free) |
| Notes & annotations | No | Yes (Free) |
| Library search | No | Yes (Free) |
| Subscription folders | No | Yes (Pro) |
| Cloud sync | No | Yes (Pro - encrypted) |
| Creator analytics | No | Yes (Creator) |
| Price | Free (open-source) | Free / €6/mo (from €4.90 annually) / €17/mo (from €14.90 annually) |
The comparison shows two extensions with no feature overlap. ImprovedTube excels at interface customization. YouTube Bookmark Pro excels at content organization. The two serve different user needs. ImprovedTube changes how YouTube looks. YouTube Bookmark Pro changes how you work with the content on YouTube.
The mockup above shows what ImprovedTube cannot do: a cloud-synced library of bookmarked videos, each with timestamps, personal notes, and category organization, accessible from any device. This is the organizational layer that ImprovedTube's 170+ features never addressed.
Should you stay or switch?
Keep ImprovedTube if…
- You want UI customization above all else. If your primary goal is to reshape how YouTube looks and feels - themes, layout, player behavior - ImprovedTube has the deepest feature set for that purpose.
- You value open-source transparency. The ability to audit the code, contribute features, and verify privacy claims is a legitimate advantage that closed-source extensions cannot match.
- You do not need to save or organize videos. If you use YouTube casually and never need to bookmark, annotate, or search your viewing history, ImprovedTube's customization features are all you need.
Switch to (or add) YouTube Bookmark Pro if…
- You need to build a video library. Bookmarks, timestamps, notes, categories, and search give you a personal knowledge base built from YouTube content. ImprovedTube cannot do any of this.
- You need cloud sync. Encrypted cross-device sync means your bookmarks and settings follow you everywhere. ImprovedTube stores everything locally with no backup or sync.
- You manage many subscriptions. Subscriptions Pro folders, channel health tracking, and auto-routing solve the subscription management problem that ImprovedTube's UI tweaks do not touch.
- You create YouTube content. Creator analytics, competitor comparison, and comment analysis provide actionable intelligence for your channel.
Using both together
Customization + Organization = the complete setup.
ImprovedTube and YouTube Bookmark Pro can run side by side without conflict. ImprovedTube modifies YouTube's interface elements. YouTube Bookmark Pro adds a separate side panel for bookmarking and organization. They do not compete for the same screen space or browser resources.
The ideal setup for anyone who watches YouTube regularly: let ImprovedTube handle the visual and playback customizations you prefer, and let YouTube Bookmark Pro handle saving, organizing, and syncing your video collection. You get the best YouTube extensions for both purposes without any compromise.
Install YouTube Bookmark Pro from the Chrome Web Store. The Library is free forever - start saving videos with timestamps and notes today, then explore subscription folders and creator analytics when you are ready. ImprovedTube tweaks the interface. YouTube Bookmark Pro gives you the organization layer that was never part of ImprovedTube's mission.
The verdict
170+ UI tweaks, zero organization tools - fill the gap
ImprovedTube is great at what it does: customizing the YouTube interface. YouTube Bookmark Pro is great at what ImprovedTube does not: saving, organizing, syncing, and searching your video collection. Use both or switch - the free Library has you covered either way.
Frequently asked questions
Can I use ImprovedTube and YouTube Bookmark Pro together?
Yes. ImprovedTube modifies the YouTube page layout and player controls. YouTube Bookmark Pro adds an independent side panel for bookmarking and organization. They use different parts of the page and do not interfere with each other. Many users run both for a complete customization-plus-organization setup.
Is ImprovedTube better than YouTube Bookmark Pro?
They solve different problems. ImprovedTube is better for YouTube UI customization - themes, player tweaks, layout changes. YouTube Bookmark Pro is better for video organization - bookmarks, timestamps, notes, search, cloud sync, and creator analytics. Comparing them directly is like comparing a text editor theme to a file manager. Both are useful, but for different things.
Does YouTube Bookmark Pro have cloud sync?
Yes. The Pro tier includes encrypted cloud sync powered by Supabase. Your bookmarks, notes, timestamps, subscription folders, and settings sync across every device where you are logged in. ImprovedTube stores all settings locally with no sync capability. Cloud sync is available with Pro at €6/mo (from €4.90/mo annually).
Is YouTube Bookmark Pro open-source like ImprovedTube?
No. YouTube Bookmark Pro is a proprietary extension. ImprovedTube's open-source model has legitimate advantages for transparency. YouTube Bookmark Pro offers a different value proposition: a focused feature set for video organization, subscription management, and creator analytics, backed by professional development and encrypted cloud infrastructure. The trade-off is open code versus polished, purpose-built features.