What Is Bluesky? The Decentralized Social Media Rival to Elon Musk's X

Social media level Bluesky is often touted arsenic an alternate to X (formerly Twitter), and viewed arsenic a rival to the tech giant.

However, its underlying architecture is rather different—where X is simply a azygous institution with a siloed ecosystem, Bluesky is based connected a decentralized infrastructure.

Here’s however it works.

What is Bluesky?

Bluesky is simply a decentralized societal media level based connected the authenticated transport (AT) protocol.

The basal underlying thought down decentralized societal media platforms is that users should beryllium capable to ain their ain data, and migrate to antithetic servers, of which Bluesky is lone 1 among many.

While it’s been portrayed arsenic a rival to X, Bluesky tin really hint its roots backmost to the societal media platform. In December 2019, Twitter announced that it was backing an autarkic squad to enactment connected an unfastened and decentralized societal media standard.

At the time, Twitter laminitis Jack Dorsey expressed a tendency for Twitter to yet beryllium a lawsuit (user) of the modular that Bluesky was moving on.

In August 2021, it was announced that Jay Graber, formerly a developer for privacy coin task Zcash, would beryllium helming the Bluesky squad and its initiatives going forward. In February 2022, Bluesky became a wholly autarkic enactment pursuing the enactment of its Public Benefit LLC.

In October 2022, the iOS Bluesky app was announced to notable fanfare—with its waitlist receiving astir 30,000 motion ups successful 2 days.

Following its beta launch successful February 2023, Bluesky launched connected Android successful April 2023 earlier afloat opening to the public successful February 2024, having amassed immoderate 3 cardinal users since it launched successful beta. Within 24 hours of its nationalist launch, Graber claimed that 550,000 caller users had signed up to the platform. A further influx of caller users came successful September 2024, erstwhile immoderate 2.6 cardinal users joined the level successful a week aft X was banned successful Brazil.

In the aftermath of the U.S. statesmanlike predetermination successful November 2024, Bluesky saw different maturation spurt, with over a cardinal caller users joining the level successful the week pursuing the election, and usage of its app increasing by implicit 500% versus the archetypal 10 months of the year, according to SimilarWeb. According to societal media researcher Axel Bruns, Bluesky offers a "refuge" for "the much wide benignant of Twitter community."

By precocious November, Bluesky's idiosyncratic numbers successful the U.S. had overtaken those of Meta's rival societal media level Threads, surging past 20 million. As of March 2026, Bluesky has implicit 43 cardinal users, wherever Threads claims to person immoderate 150 cardinal regular progressive users arsenic of January 2026.

In March 2026, Graber announced that she was stepping backmost arsenic CEO of Bluesky and transitioning to the relation of Chief Innovation Officer, handing implicit the reins to erstwhile Automattic CEO Toni Schneider arsenic interim CEO.

Days later, Bluesky disclosed that it had completed a $100 cardinal Series B backing circular successful April 2025, led by Bain Capital Crypto, with information from Alumni Ventures, Anthos Capital, Bloomberg Beta, Knight Foundation and True Ventures.

In a statement, the steadfast said that the backing would beryllium directed towards gathering retired “the aboriginal of the unfastened societal web without compromising our ngo and values.”

The Bluesky idiosyncratic experience

Bluesky arsenic an app appears to beryllium mostly modeled connected X itself, with features including comments, likes, and reposts. This includes however these posts, replies, and the provender itself are visually presented to Bluesky users. While determination are immoderate differences, they are mostly insignificant (a station quality bounds of 265 alternatively of 280, for example).

Those similarities person go much evident with each caller update, arsenic Bluesky has added features including direct messaging, GIFs, video, livestreaming badges and cashtags.

Novel features see the quality to make customized feeds (of which much later) and “starter packs,” a acceptable of personalized invites that alteration users to urge customized feeds and users.

Bluesky besides enables users to block different users, hiding their posts and restricting their quality to interact with you. In August 2024, Bluesky introduced a acceptable of “anti-toxicity features” including the quality to detach posts from punctuation posts and fell replies.

While the Bluesky user acquisition (UX) is acquainted to X users, others constituent retired that you request to look beneath the surface-level UX to recognize wherefore the level could beryllium a societal media gamechanger.

Bluesky’s innovative networking technology: AT Protocol

While the UX and the features of Bluesky lucifer X to a important degree, the cardinal extremity of Bluesky isn’t aesthetics, features, oregon the UX. Indeed, the main extremity wasn’t adjacent to make a decentralized X competitor; superseding each of these objectives was the tendency to make a decentralized societal web protocol that could beryllium utilized by anyone. Called authenticated transport (AT) protocol, this is the exertion upon which Bluesky is built.

While Bluesky is the archetypal large merchandise connected AT protocol, the exertion is unfastened and disposable for usage by immoderate user, developer, oregon institution (in overmuch the aforesaid mode anyone tin physique connected a nationalist blockchain similar Ethereum). This means that others could make their ain societal media platforms utilizing AT protocol technology. Even X could perchance beryllium tally connected AT protocol, arsenic Jack Dorsey had hoped, though with its alteration of ownership this whitethorn beryllium a little apt scenario.

Thanks to these features, galore spot the AT protocol, alternatively than the Bluesky app, arsenic the cardinal innovation. While Bluesky gets each the headlines, the AT protocol could fundamentally alteration the societal media scenery successful ways that aren’t simply method oregon abstract (more connected that later). The AT protocol is an amalgamation of decentralized technologies (but not a blockchain writ large). In essence, the AT protocol would alteration the instauration of not a azygous societal network, but a federation of societal networks that could interact with each other.

AT protocol enables caller ways for users to transparently pass with each other. At a method level, this would let you to self-host the servers of your ain company, profile, oregon societal media platform. This is successful stark opposition to existing societal media platforms wherever the self-hosting of servers and information simply isn’t possible.

The extremity of specified a plan is to unafraid idiosyncratic information and marque the idiosyncratic level acquisition resistant to power from corporations, governments, and different centralized entities. As Bluesky's caput of maturation Emily Liu put it, the company's motto is that "the institution is simply a aboriginal adversary," adding that, "if bluesky ever tried pulling comic business, users tin easy battalion their bags (take each of their information and relationships with them) and determination to a antithetic server."

AT protocol has the quality to enactment users successful power of their information and however it is utilized (or not used). While being capable to big your ain servers is an option, users that don’t privation to tally their ain servers tin simply delegate a big of their choosing and usage Bluesky similar immoderate different societal media app.

What Bluesky and AT Protocol mean for societal media users

In the existent landscape, large societal media platforms (X, Facebook, TikTok, Instagram, YouTube) are mostly siloed ecosystems that don’t interact with each other. If you are connected aggregate societal media platforms, you apt person antithetic followers, friends, and content—and presumption antithetic content. And if you don’t similar a societal media web you are using, you don’t person a batch of bully options. While you tin ever usage an app less, halt utilizing it, oregon find an alternative, it tin often beryllium a hard prime to make.

If you determine to leave, you often find yourself successful a smaller ecosystem than the 1 you left. Further, you often person to commencement implicit by creating a caller account, adding caller friends and followers, and truthful on. Beyond that, you whitethorn find that galore of the radical you privation to prosecute with don’t usage these societal media alternatives. Regardless of your crushed for disliking a level oregon definite aspects of it (over/under moderation, the algorithm, information privacy, censorship, and truthful on), users often proceed to usage these platforms owed to a deficiency of viable alternatives and the headache associated with starting from scratch connected a caller societal network. With AT protocol, 1 cardinal diagnostic is the quality to larboard implicit a societal media illustration to different network—without losing the cardinal information and societal contacts you value.

For example, let's accidental you person a Bluesky relationship with a username handle, hundreds of contacts, messaging history, and truthful on. If for immoderate crushed you didn’t similar however Bluesky was operating, you could simply larboard implicit your full relationship to a Bluesky alternate that is built connected the AT protocol and proceed arsenic if thing changed. This solves 1 of the large symptom points of leaving and joining societal networks.

Not to accidental that you would needfully privation to permission Bluesky, however, arsenic it allows for a large grade of customization and idiosyncratic power not disposable connected different societal media platforms. One extremity of Bluesky is to revitalize transparent and nationalist speech connected societal media by tamping down connected the disinformation and authoritarian manipulation sometimes recovered successful the integer societal media landscape.

Bluesky’s goals usher its development

In overmuch the aforesaid mode that the net is nationalist infrastructure disposable to all, Bluesky’s squad wants the societal media furniture to besides beryllium communal infrastructure done their AT protocol framework.

“We wanted this to someday beryllium the past societal individuality you’ll ever person to make due to the fact that you tin determination it successful betwixt apps and services,” Bluesky’s past CEO Jay Graber said successful a March 2024 interview. “You tin instrumentality your individuality and your relationships and your information with you. And truthful that’s the underlying protocol layer.”

They privation to spot an “evolution from platforms to protocols.” Satoshi Nakamoto designed Bitcoin arsenic an autarkic blockchain protocol; Bitcoin (BTC) wouldn’t beryllium sent via ligament transportation oregon a recognition paper network; it needed a wholly caller technological framework. In overmuch the aforesaid mode that Bitcoin decentralized currency, Bluesky’s squad wants to decentralize—and revolutionize—social media. With the interoperability baked in, your societal media contacts and interactions are kept intact. In overmuch the aforesaid mode that you tin present power your crypto wallet and support your crypto, AT protocol volition let you to power societal media platforms and support your contacts (in a comparatively painless manner).

Bluesky’s trifecta of objectives is: trust, scale, and portability. The aforementioned quality to migrate your societal web contacts and grip to a competing web comprises the portability component. If you privation to permission a web (or it goes offline via bankruptcy oregon method issues), you don’t privation to suffer everything. Just arsenic you tin alteration your smartphone supplier without losing your number, Bluesky envisions this aforesaid portability for societal web profiles. While changing your supplier without losing your telephone fig seems earthy now, you really did suffer your fig erstwhile changing providers anterior to 2003 successful the U.S. While telephone fig portability required a Federal Communications Commission ruling, Bluesky is enabling portability done the optional adoption of its AT protocol-powered app.

They besides privation Bluesky to alteration conversations astatine a planetary scale. While immoderate decentralized networks bash a bully occupation of giving users power and transparency, galore of them tin lone relation smoothly and reliably arsenic smaller online communities. They envision a societal web that tin grip the planetary conversations of centralized societal media sites portion preserving the state and options provided by an unfastened protocol.

Perhaps astir desired by societal media users, Bluesky wants to reestablish trust. Using cryptography, Bluesky users tin verify the authenticity of contented that was created by different users—ensuring that they created the contented themselves. Another diagnostic is the quality to usage a domain sanction (a website address) arsenic your username. This is different mode you tin physique spot and verify yourself to different users—and vice versa.

AT Protocol’s algorithmic prime and moderation tools

Another constituent of contention that sows distrust connected the large, centralized societal media platforms fashionable contiguous is however their proprietary algorithms signifier nationalist sermon and curate your societal media feed.

In possibly 1 of its astir praised features, Bluesky offers “algorithmic choice.” This allows you to spot however an algorithm operates, modify it, oregon simply take to usage a antithetic algorithm. The open-source quality of the task enables developers and users to present their ain bespoke algorithms; galore antithetic algorithmically generated feeds are already live, encompassing everything from posts by furries to posts by accounts that travel you, to posts astir moss.

While algorithms themselves person mostly been written disconnected arsenic societal media manipulation, Bluesky doesn’t spot algorithms arsenic the issue, but alternatively the deficiency of transparency and power of these algorithms arsenic the large shortcoming of centralized societal media offerings.

If you privation a elemental chronological timeline algorithm, that volition beryllium an option. For those that privation thing different, an unfastened “marketplace of algorithms” volition let users to take which algorithm they privation to use—and power algorithms astatine volition (much similar you tin present freely power telephone carriers). In fact, users tin swipe betwixt their favourite algorithms oregon presumption a multi-algorithmic feed. These algorithms are searchable, allowing you to find caller algorithms, stock them, oregon adjacent people your ain algorithms that others tin use.

While algorithmic prime volition mostly fto you determine what you see, Bluesky’s imaginativeness for moderation volition find what you don’t see. Bluesky sees “composable moderation” arsenic a cardinal diagnostic of their societal app. While there’s a basal default moderation filter, users tin besides alteration it, oregon furniture successful customized filters that tin enactment successful tandem with each other. Ultimately, this moderation would person components that are done automatically and besides manually done either web admins oregon by the assemblage itself.

The aboriginal of Bluesky and decentralized societal media

Bluesky is 1 of a fig of antithetic decentralized societal media platforms that person gained traction pursuing Elon Musk's 2022 acquisition of Twitter, including Nostr, Mastodon and Threads. Each takes a antithetic attack to decentralization; Mastodon and Threads enactment the rival ActivityPub protocol, for example.

Other societal media platforms person leveraged blockchain, including Farcaster and Lens Protocol.

Bluesky and its AT protocol look to clasp committedness arsenic a two-pronged alternate and solution (app and decentralized protocol) that could ameliorate the critiques aimed astatine the centralized societal media behemoths.

However, Bluesky's 43 million-strong idiosyncratic base, portion growing, is tiny compared to the societal media behemoths it's challenging; X has over 404 cardinal regular progressive users arsenic of Q2 2025, for example. Bluesky has attracted investment, though; successful mid-2023 it raised $8 million successful a effect backing round, with a further $15 million raised successful October 2024 and a $100 cardinal Series B raise successful April 2025.

While it's excessively aboriginal to find if astir decentralized societal media volition mostly beryllium connected the blockchain oregon simply usage technological aspects of decentralized networks, galore foretell that the societal media scenery volition progressively go much transparent, flexible, and unfastened arsenic we modulation from a Web2 to Web3 paradigm.