For most of its life, Reddit was the website people used but rarely paid for, ran but rarely got paid to run, and cited constantly without quite explaining why. It was the place you ended up when a real answer mattered - the plumbing forum, the disease support group, the obsessive breakdown of a camera you were about to buy. And then, almost twenty years in, the rest of the internet caught up to what regular users already knew: the most useful thing on the web is other people, writing honestly, for free.
Reddit is a network of more than 100,000 active communities, called subreddits, each one a self-governing corner devoted to a city, a hobby, a fandom, an illness, a programming language, or an argument that never ends. Members post links, text, images, and video, and the crowd sorts it with a pair of buttons: an upvote and a downvote. That voting system - not an algorithm alone - is the engine. It is why the phrase "the front page of the internet" stuck, and why so many people quietly append the word "reddit" to their Google searches to find a human being who has actually done the thing.
A rejected pitch and a mascot named Snoo
The origin story is now startup folklore. In 2005, two University of Virginia roommates, Steve Huffman and Alexis Ohanian, pitched Y Combinator on a food-ordering app. They were turned down, then told to come back and build "the front page of the internet." They did, in a matter of weeks, and Reddit went live that June. Months later the programmer and open-access activist Aaron Swartz became an early co-owner when his startup merged with the young company. The alien mascot they drew, Snoo, is a pun - as in "What's Snoo?" The whole thing had the fingerprints of a side project, which for a while it was.
Publisher Conde Nast bought Reddit in 2006, roughly sixteen months after launch. It spun back out to more independence in 2011, took on outside funding, and in 2015 Huffman returned as chief executive. For years the pattern held: enormous cultural influence, modest revenue, and a running question about whether a site built on volunteer labor and raw opinion could ever become a real business.
Who actually uses it - and who pays
There are really two customer bases. The first is the users: roughly 130 million daily active uniques and hundreds of millions of monthly visitors, who use Reddit for free. They come for the communities and, increasingly, for answers. The second base is the one that writes the checks - advertisers who want to reach those high-intent communities, publishers and creators using Reddit's business tools, and, most recently, the AI companies that want to train on what Redditors have written.
That split explains the shape of the business. Advertising is the foundation. In the second quarter of 2025, ads made up roughly 93% of revenue, with ad revenue growing about 84% year over year. The pitch to marketers is specific: Reddit knows what its communities are actually interested in, because they announce it, in threads, every day.
The second act: selling the conversation
The newer story is data licensing. For years, people added "reddit" to searches because they trusted a stranger's comment over a page of optimized results. AI labs noticed the same thing. Reddit's archive of genuine back-and-forth turned out to be close to the best available record of how real people explain things to each other - exactly what large language models need to sound useful.
So Reddit did something no rival could easily copy: it began licensing that corpus. Deals with Google (reported at around $60 million a year) and OpenAI (estimated near $70 million annually) together came to roughly 10% of revenue. It is a small slice today, but a strategically loud one - the same conversations that feed the ad business now feed the models people use instead of search. Both major deals are up for renewal in 2026, which is why every earnings call now includes a question about them.
The growth finally arrived in the numbers. Q2 2025 revenue reached about $500 million, up roughly 78% year over year, and the company posted net income near $89 million - its most profitable quarter to date. For a business that spent most of its existence losing money, the swing was the headline.
Products, in plain terms
The core product is the platform itself: subreddits, posts, comments, and votes. Around it sits a small suite. Reddit Ads is the money machine. Reddit Answers, launched in testing in late 2024 and more broadly in 2025, is an AI search feature that answers questions using only Reddit's own posts and comments, drawing on OpenAI and Google Cloud models; it scaled from about 1 million to 15 million weekly users in roughly a year. Reddit Pro is a free kit of analytics and trend tools for businesses and creators. Reddit Premium is the ad-free paid tier. And under all of it are the moderation tools - automod, rule enforcement, mod queues - that let unpaid volunteers keep 100,000 communities running.
What makes it different
Most social platforms optimize a single feed to hold your attention. Reddit is closer to a federation of forums, each with its own rules, culture, and moderators. You do not follow people so much as join rooms. That structure is why the content is so varied and why it resists the flattening that makes other networks feel interchangeable. It is also why the data is valuable: the conversation is topical, threaded, and voted-on, which is unusually clean signal.
The other difference is governance. Reddit's communities are run by volunteers, not employees. It is a strength - free, motivated, expert labor - and a genuine tension for a public company that depends on people it does not pay. When Reddit went public, it did something almost no other company would: it reserved a large share allocation for moderators and power users, an open acknowledgment of where the value actually comes from.
The expertise underneath
A site that looks this plain hides a serious engineering problem: serving real-time, community-ranked conversation to hundreds of millions of people, then making sense of it at scale. Reddit's stack runs on a mix of languages and data infrastructure - Python and Go on the backend, plus streaming and analytics systems built on tools like Kafka, Spark, Flink, and Airflow - to ingest votes, comments, and signals fast enough to rank a front page that changes by the minute. The company employs roughly 2,600 people to keep it standing.
The deeper expertise, though, is social rather than technical. Reddit has spent nearly two decades learning how communities form, fracture, and police themselves, and how to give volunteer moderators enough tooling to run a place without turning it into a corporate product. That accumulated knowledge - what keeps a community healthy, what makes people trust an anonymous answer - is the part competitors find hardest to replicate, and the part that makes the underlying data worth licensing in the first place.
Where it sits in the market
For attention and ad dollars, Reddit competes with Meta, X, TikTok, YouTube, and Pinterest. For question-answering and discovery, its rivals are Google Search, Quora, Stack Exchange, and the AI chatbots themselves. Its odd position is that it both feeds and competes with search: people find Reddit through Google, and Reddit now sells Google the right to read it. In the market for AI training data, it has few real peers, because almost no one else owns two decades of human conversation with permission to license it.
The short historyNone of which changes the strange, durable thing at the center of it. Reddit's karma system pays out no money - just points - and yet it has motivated billions of posts. People show up to answer a question they will never be thanked for, in a community they moderate for free, on a platform that now sells their words to the most powerful companies in technology. That the arrangement holds at all is the most interesting fact about the business.