Compare Keep and Matter side by side on features, pricing, and the workflows each one is designed for.
Save anything from the web and get it back as markdown for AI agents or a simple reading feed.
Free, paid from $10/mo
A curated read-later app with beautiful typography, highlights, and text-to-speech.
Free, paid from $8/mo
Here's how Keep and Matter compare across the features people actually look for. They share 14 core capabilities; the differences show up in what each tool focuses on.
| Feature | Keep | Matter |
|---|---|---|
| Capture and save | ||
| Browser extension | Chrome, Firefox, Edge, Brave | |
| Mobile apps | iOS; Android parity unclear | |
| Save from email | Forward to in.keep.md | Premium |
| Save tweets | Quoteshots + X integration | |
| Save YouTube videos | With transcripts | Premium; with transcription |
| Save GitHub stars | ||
| Save PDFs | Converted to markdown | |
| Save files (docs, spreadsheets) | Word, Excel, CSV, HTML, OpenDocument | |
| Save audio files | With Whisper transcription | Podcast episodes |
| Save via API | ||
| Auto-sync sources | ||
| RSS auto-sync | Premium | |
| YouTube channel sync | ||
| X bookmarks sync | ||
| GitHub stars sync | ||
| Newsletter inbox sync | Premium | |
| Library and reading | ||
| Reader view | ||
| Offline reading | Partial | |
| Full-text search | Premium | |
| Semantic / AI search | ||
| Highlights | Unlimited on Premium | |
| Notes | Unlimited on Premium | |
| Tags | ||
| Collections | Partial | |
| Public sharing | Partial | Quoteshots for individual quotes |
| Full-text RSS extraction | ||
| AI and agents | ||
| Markdown export for AI agents | Per-item .md URL | |
| Bulk markdown export | Partial | |
| MCP server | ||
| CLI tool | keep-markdown npm package | |
| Claude Code skill | ||
| AI summaries | AI summary and AI tagging on every saved article | Premium (AI Co-Reader) |
| Public API | ||
| Import and export | ||
| OPML import / export | Import from and export to any OPML-compatible reader | |
| Pocket import | ZIP, CSV, and legacy HTML exports | |
| Instapaper import | CSV export with folders, archive, and starred state | |
| CSV / JSON export | Partial | |
| Send to Kindle | Premium |
Keep is free, paid from $10/mo and Matter is free, paid from $8/mo. The tier that fits best usually comes down to how many items you save each month.
Free
50 saved items lifetime, browser extension, MCP server, markdown export.
Pro
1,000 saves per cycle, all sources, bulk exports, higher API quota.
Max
5,000 saves per cycle, everything in Pro.
Free
Unlimited library, web + mobile extensions, parsing, unlimited tags.
Premium
HD text-to-speech, AI Co-Reader, RSS feeds, newsletter inbox, unlimited highlights, Kindle send, integrations.
Both tools do their category well, but the specifics differ. Here's what each one is good at and where it tends to fall short.
Keep is a save-anywhere tool built around one idea: everything you capture should be available as clean markdown that an AI agent can read. Articles, tweets, YouTube videos with transcripts, GitHub stars, newsletters, RSS, and plain URLs all land in the same searchable library. People read their library in a clean in-app feed. Agents read it through the API, CLI, MCP server, and Claude Code skill, so Claude Code, Cursor, ChatGPT, and other tools can work against the library directly. Auto-sync pulls from RSS, YouTube, X bookmarks, GitHub stars, and newsletter inboxes on a schedule, so the library stays current without manual work. Semantic search runs across everything you've saved.
Matter is a read-later app that leans hard on typography, audio, and AI as a co-reader. The free tier covers unlimited saves, the parser, mobile and web extensions, and unlimited tags. Premium at $8/mo or $60/yr adds HD text-to-speech, an AI Co-Reader that summarises and explains, full-text search, RSS feeds, newsletter syncing, unlimited highlights, integrations, and Kindle send. The reading UI is one of the nicest in the category. The team is small, which shows in a smaller feature set than Readwise Reader but also in a more coherent product.