If you are checking whether PostyBirb is legit and whether “free” hides a catch, here is the short answer, verified on July 28, 2026: it is a genuinely free, open-source desktop app by developer Michael DiCarlo, funded by donations, with its latest release (v3.1.73) shipped on GitHub on July 17, 2026 — eleven days before this update. There is no paid tier, no trial timer, no commission. It sits at #1 in our best OnlyFans scheduling tools ranking for one reason: it is the rare scheduler that treats adult-friendly platforms as first-class citizens instead of banning them. The honest limits — desktop-only, no analytics, no OnlyFans posting — are all below.

What PostyBirb actually is

PostyBirb is not a SaaS. You do not log into a website; you download a desktop application (Windows, macOS, Linux) that runs locally on your machine. You load media into a batch, write one master description, tweak per-site variants — tags, ratings, spoiler flags — and PostyBirb submits everything to each platform you have connected, immediately or on a schedule. Journals and status updates are supported alongside images and video.

The architecture is the point. Because it runs on your hardware, your session cookies and content never sit in someone else’s cloud database. For creators burned by third-party breaches, that data sovereignty is a real feature, not marketing. The trade-off is equally real: if your PC is asleep at posting time, nothing posts. There is no cloud fallback.

PostyBirb pricing (verified July 2026): genuinely $0

The vendor’s own site says it plainly: “PostyBirb is provided completely free but every little bit helps,” with a donate button next to it. Read against the paid field, verified this month:

ToolCostModel
PostyBirb$0Open source, donation-funded
MetricoolFree plan; paid from ~€16/mo annualSaaS subscription
FanGrowthFree 20 posts/mo; $14–$199/mo paidSaaS subscription
PostyBirb official site July 2026: PostyBirb is provided completely free but every little bit helps, with donate and help translate buttons

There is no premium edition to upsell you into. Development is visibly alive: the v3.1.73 release on July 17, 2026 fixed a Piczel login issue, and the public repo shows a steady bug-fix cadence. The realistic “price” you pay is time: when a platform changes its site, a connection can break until the next patch, and you are the one troubleshooting it.

The 30 supported sites · and the ones missing

The official site lists 30 supported platforms as of July 2026. The ones that matter for OF promo: Bluesky, Twitter/X, Mastodon, Telegram, Tumblr, Discord and Newgrounds, plus monetization-adjacent sites like Patreon, SubscribeStar and Ko-fi. The rest is the art-platform long tail — DeviantArt, FurAffinity, Inkbunny, Pixiv, e621, Weasyl, Itaku and friends — which tells you who this tool was built for. Older write-ups (including our own previous version of this review) cited “40+ platforms”; the current official list is 30, so we corrected it. Notably absent: OnlyFans itself (no public API exists — true for every tool), Reddit, Instagram and TikTok. If Reddit is your main funnel, PostyBirb is not your scheduler; that lane belongs to FanGrowth.

Safety, ToS and the local-data advantage

PostyBirb does not run gray-hat automation: it fills in the same submission forms you would, from your own machine, with your own logged-in sessions, and open-source code anyone can audit. That is about as ToS-clean as multi-platform posting gets, and there is no documented pattern of platforms banning PostyBirb users for using it. The risks are practical instead. Blast 20 submissions in five minutes and rate limits on some platforms (X especially) will time out or reject posts. And each platform’s adult-content rules still apply to what you upload — the tool marks ratings per site, but the moderation call stays with the platform. The automation warning we attach to DM bots in this niche simply does not apply here: posting your own content to your own accounts is the defensible kind of automation.

Who should use PostyBirb · and who should not

  • Creators promoting on Bluesky, X, Mastodon and the art platforms: yes. Nothing free comes close, and nothing paid respects adult content this consistently.
  • Anyone allergic to cloud tools holding their logins: yes — sessions stay on your machine.
  • Reddit-first or Instagram-first promo: no. Those platforms are not supported; use FanGrowth or Metricool.
  • OFM agencies wanting CRM, analytics or team workflows: no. PostyBirb posts content, full stop. Fan management lives in our best OnlyFans CRM ranking.

PostyBirb vs Metricool vs FanGrowth

Our scheduling podium, compared on what actually differs: Power users who need scraping and automation should read our PhantomBuster review.

PostyBirbMetricoolFanGrowth
Price$0, open sourceFree plan; paid ~€16/mo annual$0–$199/mo
RunsDesktop app, localCloudCloud
Adult contentFirst-class supportMainstream platforms, promo onlyBuilt for OF/Fansly promo
Key platformsBluesky, X, art sites, PatreonIG, TikTok, YT + analyticsReddit, IG, Threads, TikTok, X
AnalyticsNoneBest in classBasic

The stack most working creators end with: PostyBirb for the free fan-out to X/Bluesky/art platforms, FanGrowth for Reddit, and Metricool if you need attribution numbers. Full reasoning in the scheduling ranking and our OnlyFans promotion guide.

Verdict

Score: 4.3 out of 5. Judged as what it is — a free, open-source, adult-friendly batch scheduler — PostyBirb is the best tool in its lane and keeps its #1 spot in our ranking. The score holds back a full point for the structural limits: no Reddit or Instagram, no analytics at all, desktop-bound scheduling that dies when your machine sleeps, and the occasional broken connector between patches. None of that costs you money to discover. Download it, connect two platforms, and you will know within an hour whether it fits your workflow — the price of the experiment is zero.

FAQ

Is PostyBirb really free?

Yes. The official site states it is “provided completely free,” funded by donations, and the code is open source. Latest release v3.1.73 shipped July 17, 2026. There is no paid tier and no feature paywall.

Is PostyBirb safe to install?

The code is open source and community-audited, and your login sessions stay on your own machine rather than a vendor cloud — structurally safer than most SaaS schedulers. Standard caveat: download only from the official site or the official GitHub releases.

Does PostyBirb post to OnlyFans?

No — and neither does any other tool: OnlyFans has no public posting API. PostyBirb automates the promo platforms around it. It also does not support Reddit, Instagram or TikTok.

How many platforms does PostyBirb support?

30 as of July 2026 per the official list, including Bluesky, Twitter/X, Mastodon, Telegram, Tumblr, Discord, Patreon, SubscribeStar, Pixiv, DeviantArt and FurAffinity.

About The OFM Audit Team

We review OnlyFans-management tools from the operator’s side: pricing, contract terms, account risk and what the vendor will not put in writing. Every price and date in this article was read on the vendor’s own pages on the date stated in the text. When a claim cannot be verified independently, we say so instead of repeating it.

Some links on this site are affiliate links. They do not change our scores, and we publish the criticism either way.

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