Character Hub AI Explained: Which Site Is Real, Is It Free, and How to Get a Card Working

What Does “Character Hub AI” Actually Point To?

“Character hub ai” most commonly points to chub.ai — the active character-card hub that used to live at characterhub.org and merged with Venus Chub in May 2024. Everything else that shares part of the name is either a legacy version of that same project, an unrelated site, or a clone to avoid. Here's the whole maze in one table:

The merger is the key to the confusion. Venus AI (the chat front-end) and CharacterHub (the card repository) used to be two separate sites you had to bounce between, until the same developers consolidated them into one unified chub.ai platform in May 2024 — a history corroborated across the r/Chub_AI community and a dated GitHub discussion from the consolidation. After that, characterhub.org was left behind as a deprecated legacy site. First-hand reports back this up plainly: one r/Chub_AI thread describes the old domain as showing only a handful of cards with “search functionality is not working,” and another simply concludes “Character Hub was abandoned completely.” Curious about the file format underneath all of this? Our character cards pillar covers it in depth — but the short version is that chub.ai is where those cards now live.

Worth knowing for scale, without putting a fake-precise number on it: chub.ai is the largest card hub of its kind (roughly 6.57M monthly visits as of February 2026), though public card-count estimates swing wildly from tens of thousands to millions because almost nobody publishes a real inventory figure. Backyard.ai is another card hub people sometimes confuse it with, but it's login-gated and a separate project. The point is not the count — it's that chub.ai (also reachable at charhub.ai) is the real, current home, and characterhub.org and characterhub.com are not. The community wrote up the migration itself, too: the r/Chub_AI “what's what” thread lays out the history from people who lived through it.

What Is a Character Card (a “Chub Character”)?

A character card — what people on Chub call a “chub character” — is a single portable file that holds everything an AI needs to play a character: name, personality, greeting, example dialogue, and often a lorebook. It's the unit the whole ecosystem revolves around. You download one chub character, hand it to a front-end, and that front-end knows how to be that character without you typing a single setup instruction.

The format has evolved through three versions, and the differences matter more than they sound. V1 was six flat fields — basic, functional, limited. V2 nests those fields inside a data object and adds the parts that make a character feel deep: a lorebook (character_book), a system prompt, alternate greetings. V3 goes further still, adding assets, multilingual notes, and decorators. Most chub ai characters you'll find today are V2 or V3, which is why a good card can carry a whole world with it, not just a personality blurb.

Then there's the part that trips people up: the difference between a PNG card and a JSON card. A PNG card hides all that data inside the image's tEXt chunk, so it still displays as a normal avatar — the picture is the character file. A JSON card is the same data as plain text, with no picture attached. Both work; they just suit different importers. The gotcha — and it's a real one people hit constantly — is that a WEBP is not a valid card container. A “PNG” that's secretly a renamed WEBP simply won't import (the SillyTavern FAQ warns about exactly this), which is the kind of silent failure that makes someone think their download is broken when the format is the actual culprit. Hold onto that detail; it comes back. Prefer to build your own card instead of downloading one? Our best card makers and editors roundup walks through the tools. And the Character Card V2 spec on GitHub is the authoritative source for the precise field definitions.

Is Character Hub AI Free and Safe to Use?

Yes — character hub ai is free to browse and download cards; you only need a free account to use the Export button, and the paid tiers don't gate card access at all. Browsing and downloading cards costs nothing, and so does making your own. What the paid tiers buy you is model muscle: Mercury runs about $5/month and Mars about $20/month, and both open up premium model access and unlimited generations — not cards. There's some friction in how the free tier gets described across the community (some frame it as a capped message trial, others as free models with credits), so the honest summary is this: you can browse, download, and make cards for free, you get free models with limits on top of that, and you pay only for the premium models. Don't let anyone sell you a precise free-message number as gospel; the tiers are stable, the fine print shifts.

On safety, the verdict is just as direct: chub.ai is a legitimate, actively maintained platform — not a scam. ScamAdviser's automated trust check rates it legit, and Chub AI Inc. is a real, named legal entity. There's an almost funny piece of evidence for that last point. Australia's eSafety Commissioner issued Chub AI Inc. a formal legal notice in October 2025 (alongside Character.AI and a few others) demanding it explain its child-safety measures. A fly-by-night scam does not get served regulatory paperwork by a national government; only a real, identifiable company does. So the scrutiny that sounds alarming actually confirms the opposite — there's a real entity behind the site.

The honest caveat, no flinching: chub.ai is explicitly 18+ and largely uncensored. Moderation is user-side and tag-based, not a top-down content filter scrubbing things for you. That's the appeal for a lot of people and the risk for others — it means you manage your own exposure. A short checklist keeps you on the safe side of it:

• Verify you're on the real chub.ai (or charhub.ai). Unrelated “Venus AI” sites are phishing clones riding on the old venus.chub.ai name.
• Don't enter real personal information into chats. Uncensored means nobody's filtering on your behalf, so your privacy is your own to manage.
• It's strictly 18+ — not for minors, and the platform prohibits content depicting real people.

How Do I Browse and Download a Card on chub.ai?

To download a card, open chub.ai, search and filter for the character you want, then use the three-dots menu on the character page to export it as a PNG or JSON file. The flow is short once you know where the buttons live:

1. Go to chub.ai/search and search by keyword.
2. Filter by tags at chub.ai/tags, toggle the NSFW filter to taste, then sort by your preference.
3. Open a character's page to preview its description and greeting before you commit.
4. Click the three-dots (⋯) menu, then “Export Character.”
5. Choose PNG (embedded card data — best for SillyTavern, TavernAI, and most importers) or JSON (raw data, for platforms that want plain text). You can grab both if you're not sure.
6. Sign in first — exporting needs a free, logged-in account. Note that some creators disable downloads on their own cards, so the option won't always be there.

One honest caveat: the exact button labels drift as the UI gets updated, so if “Export Character” reads slightly differently when you get there, look for the same idea under the three-dots menu. The flow is stable even when the wording isn't.

Why Does My Downloaded Card Do Nothing on Its Own, and Where Can It Go?

Your downloaded card does nothing on its own because it's just a portable file — a .png or .json that holds the character's data but has no AI model or chat interface attached to it. This is the single most common point of confusion, and it's worth saying plainly: the file you downloaded is a script, not an actor. It describes a character perfectly and cannot speak a word until something gives it a voice. People hit this wall constantly — the “I downloaded the card and it just sits there” problem shows up across roleplay communities, often tangled with the WEBP issue from earlier, where the file is in a format the front-end can't even read.

To bring a card to life, you import it into a front-end. The generic sequence is the same almost everywhere:

1. Locate the .png or .json you downloaded.
2. Open your chosen front-end and find its import or “add character” option.
3. Upload the file.
4. The character loads, and you can start chatting.

Where you take it determines what you actually get out of it, and this is where the choices diverge.

SillyTavern is the power-user front-end. It imports both PNG and JSON, and it's genuinely capable — but a card runs there as text only, and you still need to set it up and bring your own model or API key. Powerful, but heavier; it rewards people who like tinkering and frustrates people who just want to chat. People who want that route can follow our SillyTavern setup guide for the install and the API side.

JanitorAI and Character.AI sit at the accessible end — straightforward, text-first chat destinations where you can start talking quickly. They're a fine landing spot when conversation is all you're after, though both keep things text-only. That's exactly why one of our siblings, the JanitorAI images how-to, exists at all — getting visuals out of them takes workarounds.

There's a question none of those destinations actually answer, though: where does a downloaded card become a character I can chat with and generate images and video from — not just type at? The same .png or .json imports at ourdream.ai/character-import, where the page parses the card, auto-detects gender, and auto-fills appearance, then loads the result into a character builder — so the exact character you imported can generate images, video, and NSFW, not only text.

That's a different layer of the problem than the chat-only front-ends solve. ourdream.ai supports the broadest card-import range in the category: on the PNG side, SillyTavern V2 (chara), V3 (ccv3), and Ginger; on the JSON side, Tavern V2/V3, Faraday V4 with its lorebook, Pygmalion and Character.AI (CAI) exports, Agnaistic with memory books, TextGen WebUI, and a generic field-name fallback. It's the broadest import support in the category — but it is not magic, and it won't take an arbitrary renamed WEBP either, which loops right back to the format gotcha from the card section. And on the question people actually came here to ask — is it really uncensored? — the answer at the generation layer is yes: no NSFW restrictions, applied to images and video, not just chat. Two honest caveats, though, since this is a different platform and not a feature of whatever front-end you already use: it's a separate destination you import your card into, and generation spends dreamcoins. The entry point is a one-time 55 dreamcoins — no credit card, with 5 messages and one character creation available before you even sign up — but that's a one-time trial, not an ongoing free tier that renews each month, and images, video, and chat all draw down those coins as you go. Once you've got a card and want more than text out of it, import it at ourdream.ai/character-import.

Chub vs. JanitorAI vs. Character.AI vs. SillyTavern — Which Do I Actually Need?

Which one you need depends on what you want to do with a card: Chub is where you get cards, SillyTavern is where power users run them, and JanitorAI and Character.AI are the easiest places to just start chatting. Lined up side by side, the trade-offs are clear:

The takeaway worth circling: none of these generate images or video from a card. They run a character as text and stop there — which is exactly the gap the import step above fills for anyone who wants their character to do more than talk.

FAQ

Final Thoughts: Why Is the Name Such a Maze?

The whole tangle exists for a boring reason: a fast-moving space outran its own naming. Three near-identical names ended up at three different domains, a merger reshuffled what lived where, and Google never quite caught up — so the confusion isn't a sign anything's broken, just a sign the ecosystem grew faster than its signage. The practical fix, though, is simple to hold in your head. chub.ai is the real, current hub. A card is a portable file, not a running character. And a file goes wherever you decide to bring it to life — text-only when you just want to chat, or somewhere you can also generate images and video when you want the character to do more than talk. Sort out the name first, and the rest is just knowing where you want your character to end up.