Here's how Dewey and Instapaper compare across the features people actually look for. They share 5 core capabilities; the differences show up in what each tool focuses on.
Feature
Dewey
Instapaper
Keep
Capture and save
Browser extension
Chrome
Chrome, Firefox, Safari, Edge
Chrome, Firefox, Edge, Brave
Mobile apps
iOS, Android
Save from email
Unique save-by-email address
Forward to in.keep.md
Save tweets
Native X bookmarks sync
Save YouTube videos
URL only
With transcripts
Save GitHub stars
Save PDFs
Premium
Converted to markdown
Save files (docs, spreadsheets)
Word, Excel, CSV, HTML, OpenDocument
Save audio files
With Whisper transcription
Save via API
Auto-sync sources
RSS auto-sync
Outputs RSS of your bookmarks
YouTube channel sync
X bookmarks sync
Auto sync on Pro
Auto-sync on paid plans; manual import from extension export on free
GitHub stars sync
Newsletter inbox sync
Forward-to-save, not a dedicated inbox
Library and reading
Reader view
Offline reading
Partial
Full-text search
Premium
Semantic / AI search
Highlights
Highlight from the extension or from inside the reader, with optional notes; renders inline
Notes
Tags
Collections
Nested folders
Folders
Public sharing
Public folders (Pro)
Partial
Full-text RSS extraction
AI and agents
Markdown export for AI agents
Per-item .md URL
Bulk markdown export
MCP server
CLI tool
keep-markdown npm package
Claude Code skill
AI summaries
AI auto-tagging
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
CSV, PDF, Google Sheets
HTML + CSV
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
From My Clippings.txt, no Amazon login required
Pricing
Dewey is free, paid from $10/mo and Instapaper is free, paid from $5.99/mo. The tier that fits best usually comes down to how many items you save each month.
Dewey
Free
Manual sync, one connected account, search, filters, folders, tags, AI assistant.
Free
Pro
$10/mo monthly or $7.50/mo annual. Automatic sync, unlimited accounts, public folders, Notion + Google Sheets sync.
$10/mo
Lifetime
$225 one-time. Matches Pro features.
Custom
Export Pass
$50 for 48-hour export access without a Pro subscription.
Custom
Instapaper
Free
Unlimited saves, folders, tags, sync across web/iOS/Android, API access.
Free
Premium
Full-text search, permanent archive, PDF reader, unlimited notes, Kindle send, AI voices, speed reading, ad-free.
$5.99/mo
Keep
Free
Unlimited links, browser extension, API/CLI/MCP, RSS feeds, YouTube subscriptions, and free imports from bookmark export files.
Free
Plus
500 full-content items per cycle, X bookmarks, email inbox, GitHub sync, uploads, and AI features.
$10/mo
Pro
1,000 full-content items per cycle, everything in Plus.
$20/mo
Max
5,000 full-content items per cycle, everything in Pro.
$50/mo
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 Dewey does well
One of the only tools that syncs X bookmarks natively
Supports LinkedIn, Bluesky, Threads, TikTok, Reddit, Mastodon, Substack bookmarks too
AI auto-tagging for fast organization of thousands of saves
Custom RSS feed of your bookmarks for external workflows
Where it falls short
Social-bookmark focus only (no articles, PDFs, or reader view)
No native mobile apps or public API
Exporting your library requires Pro or a $50 Export Pass
No MCP server or AI-agent-ready markdown export
What Instapaper does well
One of the cleanest text extractions in the category
Long track record and stable apps
Email-in works out of the box for forwarding articles and newsletters
Tags now work across web, mobile, and extensions
Kindle delivery for long-form reading
Where it falls short
No RSS subscription workflow
Most of the useful features (search, PDFs, Kindle send) require Premium
No structured markdown export for AI or LLM tooling
No public API for semantic or AI features
About Dewey
Dewey is a niche tool aimed at one specific problem: saving and organising bookmarks from social platforms. It ingests from X, Bluesky, LinkedIn, Threads, TikTok, Instagram, Reddit, Mastodon, Substack, and Truth Social, and puts them in a unified library with AI auto-tagging and nested folders. Browser extension (Chrome) and web app only, no native mobile.
Pricing: Free (manual sync, one account), Pro at $10/mo monthly or $7.50/mo annually, Lifetime at $225, and an $8.50 one-off 'Export Pass' that unlocks the export feature for 48 hours without a full subscription.
About Instapaper
Instapaper is one of the original read-later apps, still going strong after Betaworks took it back from Pinterest in 2020. The product has always been sharp on one thing: save a web page, read it later in a clean typographic view. Free tier gets you unlimited saves, folders, tags, sync across iOS/Android/web, and a public API. Premium at $5.99/mo or $59.99/yr layers on full-text search, permanent archive, PDF reader, Kindle send, AI voices, and speed reading.
Most of the product has shipped in a long tail of small updates rather than big reinventions. The recent wave added tags across every platform, highlights on the open web via the browser extensions, and send-to-Kindle right from the extension.