# CardShare.ai > Make a group card online in minutes. AI designs the cover, everyone signs from one link with no account needed, and it works in Slack. Free to start. How it works: describe who the card is for (or upload a photo) and AI designs the cover and drafts the opening message. Share one link and everyone signs from their own phone or laptop, with no account or app needed to sign. Funny photo templates put the person from an uploaded photo into a scene, like being knighted by a corgi or retiring to a desert island. Signers can add a GIF. Send the finished card by email or link; it opens as a 3D greeting card in any browser. Designing, signing and sending a card is free. ## Main pages - [Home](https://www.cardshare.ai): what CardShare.ai is and how it works - [Browse occasions](https://www.cardshare.ai/browse): every occasion with a group card - [Start a card](https://www.cardshare.ai/create): create a card, free - [Slack app](https://www.cardshare.ai/slack/install): create cards with /cardshareai in Slack - [Claude connector](https://www.cardshare.ai/claude): create, edit and add photos to cards from a chat with Claude - [ChatGPT plugin](https://www.cardshare.ai/chatgpt): the same, from a chat with ChatGPT - [For teams](https://www.cardshare.ai/teams): plans for whole teams; get a quote - [Support](https://www.cardshare.ai/support): contact details, common questions and troubleshooting ## For AI agents - MCP server: https://www.cardshare.ai/mcp (streamable HTTP, OAuth sign-in). Tools create cards, add a photo to the cover, edit them, schedule when they're sent and check how many people have signed. Server card: https://www.cardshare.ai/mcp/server-card, listed in https://www.cardshare.ai/.well-known/ai-catalog.json - Markdown: the home, Browse, occasion, message ideas, comparison and guide pages and the Claude and ChatGPT guides are also served as Markdown, when requested with `Accept: text/markdown` or at the page URL plus `.md` (e.g. https://www.cardshare.ai/browse/birthday.md; the home page is https://www.cardshare.ai/index.md). Each page's HTML links its Markdown version with ## Occasions - [Birthday cards](https://www.cardshare.ai/browse/birthday): Create a group birthday card online. Everyone signs from one link, AI drafts the cover and note, and it's sent by email or text. Free to start. - [Work anniversary cards](https://www.cardshare.ai/browse/work-anniversary): Create a group work anniversary card online. Share one link so the team signs, and AI drafts the cover and note for any milestone. Free to start. - [Wedding cards](https://www.cardshare.ai/browse/wedding): Create a group wedding card online. Share one link so every guest signs, and AI designs the cover. Delivered before the big day. Free to start. - [Promotion cards](https://www.cardshare.ai/browse/promotion): Create a group promotion or congratulations card online. Share one link so the whole team signs, AI drafts the cover and note. Free to start. - [Thank you cards](https://www.cardshare.ai/browse/thank-you): Create a group thank you card online. Share one link so the whole team signs, and AI drafts the cover and note. Sent by email or text. Free to start. - [Farewell cards](https://www.cardshare.ai/browse/farewell): Create a group farewell card online. Share one link so the whole team signs a leaving card for a coworker moving on. AI designs the cover. Free to start. - [Kudos cards](https://www.cardshare.ai/browse/kudos): Create a group kudos card online for employee recognition. Share one link so the whole team signs. AI drafts the cover and note. Free to start. - [Retirement cards](https://www.cardshare.ai/browse/retirement): Create a group retirement card online. Share one link so every colleague, past and present, signs from their phone. AI designs the cover. Free to start. - [Get well soon cards](https://www.cardshare.ai/browse/get-well-soon): Send a group get well soon card online. Share one link so coworkers, friends and family sign from their phone. AI designs the cover. Free to start. - [Sympathy cards](https://www.cardshare.ai/browse/sympathy): Send a group sympathy card online. Share one link so colleagues and friends each write a condolence message, gathered in one calm card. Free to start. - [New baby cards](https://www.cardshare.ai/browse/new-baby): Create a group new baby card online. Share one link so coworkers, friends and family sign, for baby showers and parental leave. Free to start. - [Graduation cards](https://www.cardshare.ai/browse/graduation): Create a group graduation card online. Share one link so family, friends and teachers sign from their phone. AI designs the cover and note. Free to start. - [Halloween cards](https://www.cardshare.ai/browse/halloween): Make a funny Halloween card online. Upload a photo to star them in a classic horror scene, then share one link so everyone signs. Free to start. - [Holiday cards](https://www.cardshare.ai/browse/holiday): Create a group holiday card online. Share one link so the team signs a Christmas or season's greetings card for clients or colleagues. Free to start. ## Message ideas - [What to write in a card](https://www.cardshare.ai/messages): every message ideas page - [What to Write in a Leaving Card: 30 Messages](https://www.cardshare.ai/messages/leaving-card-messages): Leaving card messages for a colleague: heartfelt, funny and short ideas to copy, plus a free writer that drafts one about the person you're signing for. - [30 Retirement Messages for a Coworker](https://www.cardshare.ai/messages/retirement-messages): Retirement messages for a coworker or boss: heartfelt, funny and short wishes to copy, plus a free writer that drafts one about the person retiring. - [30 Birthday Messages for a Coworker](https://www.cardshare.ai/messages/birthday-messages-for-coworkers): Birthday messages for a coworker or boss: warm, funny and short wishes to copy, plus a free writer that drafts one about the person you're signing for. - [24 Sympathy Messages for a Coworker](https://www.cardshare.ai/messages/sympathy-messages-for-coworkers): What to write in a sympathy card for a coworker: simple, sincere messages to copy, words of support, and a free writer for a few gentle lines. - [30 Work Anniversary Messages for Coworkers](https://www.cardshare.ai/messages/work-anniversary-messages): Work anniversary messages for a coworker: first-year, milestone, funny and short ideas to copy, plus a free writer that drafts one about them. - [30 Get Well Soon Messages for a Coworker](https://www.cardshare.ai/messages/get-well-soon-messages): Get well soon messages for a coworker: warm, light-hearted and short wishes to copy, ideas after surgery, and a free writer for a few kind lines. ## Comparisons - [The best group card apps in 2026](https://www.cardshare.ai/best/group-card-apps): Seven group card apps compared on price, AI design, signing without an account and Slack, from free options to printed cards and gift collections. - [Kudoboard alternatives](https://www.cardshare.ai/best/kudoboard-alternatives): Looking for a Kudoboard alternative? Six group card apps compared on price, AI design and Slack, including free options and pay-per-card ones. - [Thankbox alternatives](https://www.cardshare.ai/best/thankbox-alternatives): Looking for a Thankbox alternative? Six group card apps compared on price, AI design and Slack, including free ones and one with a gift pot. - [GroupCards.io alternatives](https://www.cardshare.ai/best/groupcards-alternatives): Looking for a GroupCards.io alternative? Six group card apps compared on price, AI design and Slack, including free ones and one with a gift pot. - [GroupGreeting alternatives](https://www.cardshare.ai/best/groupgreeting-alternatives): Looking for a GroupGreeting alternative? Six group card apps compared on price, AI design and Slack, including free ones and two with gift pots. - [SendWishOnline alternatives](https://www.cardshare.ai/best/sendwishonline-alternatives): Looking for a SendWishOnline alternative? Six group card apps compared on price, AI design and Slack, including a free one with no ads. - [Padlet alternatives for group cards](https://www.cardshare.ai/best/padlet-alternatives): Looking for a Padlet alternative for group cards? Six apps made for cards, compared on price, AI design and Slack, including free ones. - [CardShare.ai vs Kudoboard](https://www.cardshare.ai/compare/kudoboard): Comparing CardShare.ai and Kudoboard for group cards. CardShare.ai is free to send, designs the cover with AI, and works in Slack without a subscription. - [CardShare.ai vs GroupGreeting](https://www.cardshare.ai/compare/groupgreeting): Comparing CardShare.ai and GroupGreeting for group ecards. CardShare.ai is free to send, designs a custom cover with AI, and includes a Slack app. - [CardShare.ai vs Padlet for group cards](https://www.cardshare.ai/compare/padlet): Using Padlet for a group card? CardShare.ai is built for it: an AI-designed card everyone signs from one link, free to send, with a Slack app. - [CardShare.ai vs SendWishOnline](https://www.cardshare.ai/compare/sendwishonline): Comparing CardShare.ai and SendWishOnline for group ecards. CardShare.ai is free with no ads, designs the cover with AI, and includes a Slack app. - [CardShare.ai vs Thankbox](https://www.cardshare.ai/compare/thankbox): Comparing CardShare.ai and Thankbox for group cards. CardShare.ai is free to send, designs the cover and opening note with AI, and includes a Slack app. - [CardShare.ai vs GroupCards.io](https://www.cardshare.ai/compare/groupcards): Comparing CardShare.ai and GroupCards.io for group cards. CardShare.ai is free to send, designs the cover and note with AI, and includes a Slack app. - [CardShare.ai vs GroupTogether](https://www.cardshare.ai/compare/grouptogether): Comparing CardShare.ai and GroupTogether for group cards. CardShare.ai is free to send, designs the cover and note with AI, and includes a Slack app. - [CardShare.ai vs Greetings Island](https://www.cardshare.ai/compare/greetingsisland): CardShare.ai vs Greetings Island for group cards. Both start free; CardShare.ai keeps free cards ad-free, draws the cover from a photo and works in Slack. - [CardShare.ai vs Ellacard](https://www.cardshare.ai/compare/ellacard): Comparing CardShare.ai and Ellacard for group cards. CardShare.ai is free to send, designs the cover and note with AI, and makes the card from Slack. ## Optional - [Privacy policy](https://www.cardshare.ai/privacy) - [Terms](https://www.cardshare.ai/terms) - [Sub-processors](https://www.cardshare.ai/subprocessors)