A PERSONAL LIBRARY FOR THE OPEN WEB

Keep what matters.
Find it when it does.

Keeper brings your saved videos, posts, articles, and notes into one thoughtful library—so a good idea doesn’t disappear into another tab.

For the links, clips, and thoughts you mean to come back to.
keeper / sample library
K
A LITTLE MORE FINDABLE

Recently saved

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01 / 03VIDEO · 24:15Watch.
YouTubeReact Learning

10 React Performance Pitfalls Every Senior Dev Should Avoid in 2025

Theo Browne · @t3dotgg

01 03
YOUR IDEAS, NOT YOUR TABS.SAMPLE CONTENT · INTERACTIVE PREVIEW
SCROLL A LITTLE
LESS COLLECTING.MORE REMEMBERING.
A SMALL, BETTER HABIT

From “I’ll find it later”
to found.

One quiet place for the things you want to remember. No new workflow to learn.

01

Save from anywhere

Paste a link from YouTube, Instagram, Reddit, LinkedIn, X, or a web page.

02

Keep the useful context

Keeper organizes the source details and builds a concise, searchable summary when content is available.

03

Find it in your own words

Search by a title, creator, topic, or the half-remembered idea you want to revisit.

Take a look inside
GOOD CONTEXT CHANGES EVERYTHING

Keep the source.
Keep the meaning.

A link is only the beginning. Keeper keeps the creator, original details, and your own notes close to the ideas worth saving.

  • Creator and source stay attached
  • Summaries sit alongside original details
  • Group ideas by the way you think
Explore your library
SOURCE NOTE · YOUTUBE

10 React Performance Pitfalls Every Senior Dev Should Avoid in 2025

Theo Browne · @t3dotgg

KEEPER SUMMARY

Profile real bottlenecks first. React Compiler handles many memoization cases automatically; context splitting still matters.

ReactPerformanceFrontend
youtube.com
STILL
YOURS
THE INTERNET IS A BIG PLACE

One place to keep up.

Bring useful things home from the places you already read and watch.

YouTubeVideos & Shorts
InstagramPosts & Reels
RedditThreads & comments
LinkedInPosts & articles
XPosts & threads
The webArticles & notes
YOUR MEMORY IS ENOUGH

Search like you
remember.

Try a topic, a creator, or the detail that stuck with you. Keeper searches across the source context and notes you’ve collected.

Find something in your library
“that React video about re-renders”
FROM YOUR SAVES

“10 React Performance Pitfalls…” by Theo Browne. The source notes mention context cascades and profiling render cycles first.

React Learning
Source-linked answer Saved context
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  • Bulk import supported exports and bookmark files
  • 1 credit per successfully saved item
  • Collections, tags, favorites, and full-library search
  • AI summaries when source content is available

A credit is used only when Keeper successfully saves an item. Duplicate or unsupported entries in an import don’t use credits.

Payments are one-time and collected immediately. No free trial, recurring renewal, or automatic charge is active.

A GOOD IDEA DESERVES A SECOND LIFE

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Keep moving.

Start a library that remembers the details for you.

A FEW GOOD QUESTIONS

Before you begin.

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What can I save to Keeper?

Keeper accepts links from YouTube, Instagram, Reddit, LinkedIn, X, and the wider web. The details it can extract depend on what each source makes available.

Does Keeper replace the original source?

No. A saved item keeps its source link and available creator and description details. AI summaries and extracted topics are stored as derived information alongside that source context.

Can I search without remembering the exact title?

Yes. Search across titles, source descriptions, creators, tags, collections, and available summaries using the words you remember.

What happens when a platform restricts a post?

Keeper keeps the link and any details you provide or imported. It marks unavailable media honestly instead of substituting an unrelated image.

How are save credits used?

Each successfully saved item uses one credit. Items skipped as duplicates or unsupported during a bulk import don’t use credits.

Is there an extra charge for bulk imports?

No per-import fee is proposed. Bulk imports draw from your plan’s save-credit allowance, one credit for each item Keeper successfully saves.