Matter
A curated read-later app with beautiful typography, highlights, and text-to-speech.
Free, paid from $8/mo
- Exceptional typography and reading UI
- HD text-to-speech for long articles (Premium)
- AI Co-Reader summarises and explains content
Matter vs Omnivore
Compare Matter and Omnivore side by side on features, pricing, and the workflows each one is designed for.
Omnivore
Shut downOpen-source read-later app with strong newsletter and markdown workflows.
Free
- Completely free and open source
- Strong newsletter-to-library workflow with per-user email
- Synced with Logseq, Obsidian, and Notion for PKM workflows
Feature comparison
Here's how Matter and Omnivore compare across the features people actually look for. They share 14 core capabilities; the differences show up in what each tool focuses on.
| Feature | Matter | Omnivore | Keep |
|---|---|---|---|
| Capture and save | |||
| Browser extension | Chrome, Firefox, Edge, Brave | ||
| Mobile apps | iOS; Android parity unclear | iOS, Android | |
| Save from email | Premium | Per-user address | Forward to in.keep.md |
| Save tweets | Quoteshots + X integration | ||
| Save YouTube videos | Premium; with transcription | Partial | With transcripts |
| Save GitHub stars | |||
| Save PDFs | Converted to markdown | ||
| Save files (docs, spreadsheets) | Word, Excel, CSV, HTML, OpenDocument | ||
| Save audio files | Podcast episodes | With Whisper transcription | |
| Save via API | |||
| Auto-sync sources | |||
| RSS auto-sync | Premium | ||
| YouTube channel sync | |||
| X bookmarks sync | Auto-sync on paid plans; manual import from extension export on free | ||
| 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 | Highlight from the extension or from inside the reader, with optional notes; renders inline | |
| Notes | Unlimited on Premium | ||
| Tags | Labels | ||
| Collections | Partial | Partial | |
| Public sharing | Quoteshots for individual quotes | Partial | |
| Full-text RSS extraction | Partial | ||
| AI and agents | |||
| Markdown export for AI agents | Raw markdown only | Per-item .md URL | |
| Bulk markdown export | Partial | ||
| MCP server | |||
| CLI tool | keep-markdown npm package | ||
| Claude Code skill | |||
| AI summaries | Premium (AI Co-Reader) | AI summary and AI tagging on every saved article | |
| 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 | Export to CSV or JSON. Import plain CSV/TSV plus Omnivore, Raindrop.io, Pinboard, and Wallabag export files. | |
| Send to Kindle | Premium | EPUB delivered to your Kindle email | |
| Import Kindle highlights | Premium, via Amazon account sync | From My Clippings.txt, no Amazon login required |
Pricing
Omnivore has shut down, so pricing below is for reference only. Matter is free, paid from $8/mo.
Matter
- Free
Free
Unlimited library, web + mobile extensions, parsing, unlimited tags.
- $8/mo
Premium
HD text-to-speech, AI Co-Reader, RSS feeds, newsletter inbox, unlimited highlights, Kindle send, integrations.
Omnivore
- Free
Free
All features free; open source.
Keep
- Free
Free
Unlimited links, browser extension, API/CLI/MCP, RSS feeds, YouTube subscriptions, and free imports from bookmark export files.
- $10/mo
Plus
500 full-content items per cycle, X bookmarks, email inbox, GitHub sync, uploads, and AI features.
- $20/mo
Pro
1,000 full-content items per cycle, everything in Plus.
- $50/mo
Max
5,000 full-content items per cycle, everything in Pro.
Strengths and weaknesses
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.
What Matter does well
- Exceptional typography and reading UI
- HD text-to-speech for long articles (Premium)
- AI Co-Reader summarises and explains content
- Strong newsletter workflow and writer-following feed
Where it falls short
- Small team, slower update pace than bigger competitors
- No public API for scripting or integrations
- Most power-user features require Premium
- No structured markdown export for AI agents
What Omnivore did well
- Completely free and open source
- Strong newsletter-to-library workflow with per-user email
- Synced with Logseq, Obsidian, and Notion for PKM workflows
- GraphQL API returned markdown, friendly to integrations
- Active community and regular updates prior to shutdown
Where it fell short
- Shut down in 2024 after acquisition by ElevenLabs
- No path to import back into a hosted version
- Self-hosting requires non-trivial infrastructure
Which one should you pick?
Omnivore is no longer an option
Omnivore has shut down and is no longer available. Any of the active alternatives is a safer bet.
About Matter
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.
About Omnivore
Omnivore was a free, open-source read-later app that did everything right on paper: RSS feeds, newsletter inbox, PDFs, highlights, labels, filters, rules, full-text search, a GraphQL API that returned markdown, and sync with Logseq, Obsidian, and Notion. It ran on iOS, macOS, Android, web, and extensions for Chrome, Firefox, Safari, and Edge. It shut down on November 15, 2024 after ElevenLabs acquired the team for their ElevenReader TTS product. The cloud service deleted all user data; the open-source codebase still lives on GitHub for anyone who wants to self-host.