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Moved my whole feed-reading setup into one deck today. Bluesky and Mastodon side by side, finally.
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One deck for every feedAll your feeds,
All your feeds,
side by side.
Crossdeck brings Bluesky, Mastodon and more into clean, scrollable columns. Read, filter and post to every network from a single deck. Connect a feed and you're reading in seconds.
BM Works today with Bluesky & Mastodon · more coming soon Home BM···
d
“Mortevivum: Photography and the Politics of the Visual” named a finalist in the 2026 ACLS prizes.
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h
New newsletter: knowing about the halting problem made me a better engineer. Here is why →
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Search: xprize BM···
L
XPRIZE Healthspan finalists are public. The cognitive-restoration cohort is the one I would bet on.
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The largest longevity competition is offering $101M for age-reversal breakthroughs. #Aging
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Replying to @gmj-geo — the muscle + immune endpoints are what make this round different.
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Search: accessibility ···
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PSA: your focus ring is not decoration. If it is invisible, keyboard users are lost. Bring it back.
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Shipped a contrast audit on our marketing site. 3 tokens fixed, 0 visual regressions. Worth it.
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n
Reduced-motion support is one media query. There is genuinely no excuse left in 2026.
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List: Design BM···
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Spent the morning naming color tokens. Spent the afternoon renaming them. This is the job.
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Grid is not the enemy of rhythm. Break the grid on purpose, never by accident.
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Underrated: a single accent color used with discipline beats a whole palette used carelessly.
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Mentions BM···
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Replying to you — the merged-column view sold me. Reading two networks as one timeline just works.
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mentioned you: this is the cross-posting tool I have been waiting two years for. Thank you.
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thanks for the mute-words tip — my deck is finally quiet during launch week.
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Connect
B BlueskyM Mastodonrss RSS Soon@ Threads Soon
How it works
Three steps to one timeline.
No migration, no lock-in. Connect what you already use and start reading in under a minute.
1
Connect a feed
Add Bluesky or Mastodon in seconds. No Crossdeck account required.
2
Build your deck
Merge networks into one column or give each its own. Mute words you're done with.
3
Post everywhere
Write once and cross-post to every account, with the right limit per network.
Features
Built for people with more than one feed.
Merged columns
Two networks, one timeline.
Merge Bluesky and Mastodon into a single column. Posts interleave by time and stay tagged with their source, so you always know where each one came from.
Smart mute filters
Quiet the noise, live.
Per-column muted words filter instantly across every source. Hush a launch, a discourse or a spoiler — your timeline, your rules, applied everywhere at once.
#agingspoilersxprizecryptodesigndiscoursea11y
Cross-post once
Write here. Post everywhere.
Compose a single post and fan it out to every connected account. Each network's character limit is applied automatically, and replies stay locked to the right platform.
Moved my whole feed-reading setup into one deck today. Bluesky and Mastodon, side by side. ✨
Bluesky MastodonPost to 2
Effortless setup
Up and running in seconds.
Connect a feed and you're straight into your deck — pick a network, authorise, and your columns fill in instantly. No setup wizard, no waiting.
Connect in two taps
Works in any browser
Your connections stay on your device
FAQ
Good questions.
How do I get started?
Open the app, connect a Bluesky or Mastodon feed, and your first column appears. Add as many columns as you like and arrange them into the deck that suits you.
Which networks are supported?
Bluesky and Mastodon work today. RSS and Threads are on the way — connect what you have now and the rest will light up as they ship.
Can I really post to several networks at once?
Yes. The composer cross-posts to every account you select and applies each network's character limit. Replies are locked to the platform of the post you're answering.
Where is my data stored?
Your connections and column layout live on your device. Nothing about your deck is stored on our servers — you stay in control.
Is there a mobile app?
Crossdeck runs on the web at my.crossdeck.app and is available on the App Store and Google Play — the same deck, wherever you are.
Your timeline, finally in one place.
Bring your feeds together today. Free, and ready in seconds.