Twitter Mark
Twitter Mark is a local-first Chrome extension for syncing, searching, tagging, and backing up X/Twitter bookmarks and likes in a private archive.
Twitter Mark is a local-first Chrome extension for syncing, searching, tagging, and backing up X/Twitter bookmarks and likes in a private archive.
This page is designed to help you find out whether Twitter Mark is good and if it is the right choice for you.
Twitter Mark turns X/Twitter bookmarks and likes into a fast, private archive stored in your browser.
The Free tier includes browsing, basic search, JSON backup, and bookmark sync up to 500 relations. Pro Lifetime adds likes sync, automatic sync, advanced filters, bulk tag tools, and higher product-side limits for a one-time purchase.
Twitter Mark uses your existing X login and depends on X's web interface, so changes made by X may temporarily interrupt syncing. Twitter Mark is independent and is not affiliated with or endorsed by X Corp.
Listed in
Local-First Storage
Bookmarks, likes, tags, settings, and search indexes stay in your browser's local database.
Read-Only Sync
Incremental and full sync without posting, liking, following, or removing items on your behalf.
Search and Filters
Search post content and authors, then filter by media, language, date, tags, and more.
Custom Tags
Organize saved posts with custom tags and fast tag-based filtering.
Background and Resumable Sync
Background jobs include progress history and can resume after interruption.
JSON Backup and Restore
Export and restore archive data in a portable JSON format.
Twitter Mark is local-first: synced X/Twitter bookmarks and likes, indexes, tags, settings, and history stay in your browser's local database instead of a hosted archive. Sync is read-only—it never posts, likes, follows, or removes items for you. It combines incremental/full sync, search, filters, custom tags, resumable background jobs, and JSON backup/restore in one Chrome extension.
Choose Twitter Mark if you want a private, user-controlled archive rather than another cloud feed or X automation tool. It handles both bookmarks and likes, keeps archive data on your device, provides read-only and resumable sync, and lets you export and restore JSON backups. A useful free tier is available, while Pro Lifetime is a one-time purchase with no monthly expiry.
Twitter Mark is for people who deliberately save useful posts on X and later struggle to retrieve them—researchers, creators, developers, students, and other knowledge workers who want a personal reference library. It especially suits privacy-conscious users who prefer local storage, read-only access, search, tagging, and portable backups.
Twitter Mark began with a simple problem: saving posts on X is easy, but finding them again later is not. It was built to turn bookmarks and likes into a fast, searchable local archive while preserving privacy and user control. The result is a read-only Chrome extension with tagging, filters, resilient sync, and JSON backup and restore.
Twitter Mark's Chrome extension is built with TypeScript, React, WXT, and Dexie on top of IndexedDB. It uses a Manifest V3 browser-extension architecture and stores archive data locally. The commercial companion site uses React and TypeScript on Cloudflare Workers, with Stripe handling one-time Pro purchases.
We have collected here some useful links to help you find out if Twitter Mark is good.
Check the traffic stats of Twitter Mark on SimilarWeb. The key metrics to look for are: monthly visits, average visit duration, pages per visit, and traffic by country. Moreoever, check the traffic sources. For example "Direct" traffic is a good sign.
Check the "Domain Rating" of Twitter Mark on Ahrefs. The domain rating is a measure of the strength of a website's backlink profile on a scale from 0 to 100. It shows the strength of Twitter Mark's backlink profile compared to the other websites. In most cases a domain rating of 60+ is considered good and 70+ is considered very good.
Check the "Domain Authority" of Twitter Mark on MOZ. A website's domain authority (DA) is a search engine ranking score that predicts how well a website will rank on search engine result pages (SERPs). It is based on a 100-point logarithmic scale, with higher scores corresponding to a greater likelihood of ranking. This is another useful metric to check if a website is good.
The latest comments about Twitter Mark on Reddit. This can help you find out how popualr the product is and what people think about it.
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