Group links are invite addresses that put you inside a chat or a channel with one tap. WhatsApp uses chat.whatsapp.com, Telegram uses t.me, and Discord uses discord.gg. Most of the time nobody approves you at the door, so who handed you the link matters more than the link itself. If you searched without knowing which app you want, decide between reading updates and joining a conversation first, because that choice settles most of what follows.
Short answerWant to talk with people? Look for a group (WhatsApp or Telegram) or a Discord server.Want updates from one person or organisation? Look for a channel.Check who posted the link and what the preview shows before you tap Join, not after.
What group links actually are
An invite link is a web address with a code on the end. The code points at one specific group, and the app on your phone reads it and offers to let you in. The page itself installs nothing and asks for nothing. If the app is missing, you land on a download page first.
You will meet three shapes of it:
One thing surprises people. A WhatsApp link does not die on a timer. It keeps working until an admin resets it, which is why an old link pasted into a forum can lead somewhere perfectly alive, or nowhere at all, depending on what the admin did last week. When a link answers with an error, the usual suspect is a reset, though there are other causes, ranked in why a WhatsApp group link stops working.
Broadcast or conversation: pick this first
Every big app now offers both formats, and mixing them up is the most common mistake we see. A channel is one-way: the admin posts, you read and react. A group is two-way: everybody can write, so a busy one can bury your phone in notifications by lunchtime.
WhatsApp channels work exactly like that. Admins post, followers can only react, and there is no practical follower cap. Per WhatsApp's own announcement, channel history stays on its servers for up to 30 days, and channels are not end-to-end encrypted by default. Treat a channel as a public noticeboard, not a private room.
Telegram draws the line in the same place. Channels carry unlimited subscribers and one voice; groups carry many voices. Discord has no channel in this sense at all: a server is a collection of text rooms, and some of them are set up as read-only announcement rooms.
If you are torn, ask what you want to do with the content. Reading cricket scores or exam notifications needs a channel. Asking a question and getting an answer needs a group. Our comparison of WhatsApp channels, groups and communities goes through that choice for one app, and the Telegram version does the same for the other.
Member caps and discovery at a glance
Size limits decide how a group behaves once it gets popular, and discovery decides whether you ever find it. The table puts both side by side.
WhatsApp communities sit one level above groups and link several groups together. The number of groups a community can hold is usually given as 100, though some sources say 50. The total member cap is murkier. WhatsApp does not document it clearly, recent guides put it near 2,000, and the higher figures still circulating online look outdated.
Each limit has its own story. What actually breaks as a WhatsApp group fills up is a different problem from the jump from 200 to 200,000 on Telegram, and neither resembles the 100-server wall on Discord, which limits you rather than the community.
Picking a platform for a community you are about to start is a separate decision. For that, choosing between Discord, Telegram and WhatsApp lays out the trade-offs in full.
How discovery differs on each app
Groups are the hard case. WhatsApp offers no search for them, so links get passed around in other chats, social posts and directories. That is also why so many of them are stale. Browse the WhatsApp group links hub by topic and check the listing details before you jump in.
Channels are easier. The in-app directory does the sorting, and the same WhatsApp announcement describes the filters. Knowing what to do with that list is the real skill, and finding WhatsApp channels worth following walks through it. The WhatsApp channel links hub collects the ones we list.
Telegram
Telegram lets you search by name, which sounds like the whole answer and is not. A search returns plenty of groups that were lively once and are now one bot posting to nobody. Finding Telegram groups that are still alive explains how to tell them apart, and the Telegram group links hub is where we keep the active ones.
Channels have a different problem. Subscriber counts can be padded, and a big number says little about whether a real person reads the posts. The piece on finding Telegram channels by topic without falling for bot farms is built around exactly that, and the Telegram channel links hub lists them by category.
Discord
Discord rewards specificity. A server for one game or one hobby tends to be useful, while a server that claims to cover everything is usually quiet. Our walk-through of finding Discord servers for a game or hobby you actually play shows how to narrow it, and the Discord server links hub is the largest part of our directory.
If you would rather browse by topic across all three apps, the full category list lets you do that.
What to check before you join anything
Most of the damage from group links happens in the moment you tap Join, not after weeks of membership. A name is free text. A group called something official with a verified-sounding word in it proves nothing about who runs it.
Start with the sender. A link from a friend who is in the group is a different thing from a link that arrived from a number you do not know. Then read the preview: does the name, the picture and the member count match what you were promised? Mismatches are the first tell, and signs that a group link is not what it claims to be goes through the rest.
The worst version of this in India is the investment tip group. It usually opens with a few correct-looking calls, moves to a paid app or a private "premium" room, and ends when the money has gone. How the stock tip group scam runs, and where it breaks takes it apart step by step. Before you trust any adviser, check their registration on the SEBI website.
Privacy deserves a look as well. Depending on the app and your settings, other members may see your phone number, your profile photo and your about line. What strangers in a group can see about you covers each app, and a quick look helps before you join a large public group.
What changes when you run the group
Everything above flips once you are the admin. Caps become your problem, a reset link becomes a tool, and the reader you want is someone who found you by accident and decided to stay.
The first members are the hard ones. Nobody joins an empty room, so the early work is personal: invitations, a clear one-line purpose and a topic narrow enough to be useful. The full routine is in getting your first members into a brand-new group.
Listing your link in a directory brings a steady trickle of visitors, but submissions get rejected for avoidable reasons: dead links, mismatched categories, copied descriptions. Submitting a group link without getting rejected lists them. When you are ready, the submission forms are here for WhatsApp, Telegram and Discord.
Where to start looking
Pick the format first, then the app, then the topic. If you want a chat, open the WhatsApp group links, the Telegram group links or the Discord server links. If you want a feed, go to the WhatsApp channel links or the Telegram channel links.
Not sure which topic you want yet? The category index shows everything we list, from gaming and exam prep to jobs and music. Pick one, read the preview, and leave any group that turns out wrong as soon as you notice.