Discord vs Slack
An independent, review-free comparison compiled by the SaaSTracker editorial team. Both products are profiled in full, and neither can pay for placement here.
The short answer
Both sides assessedDiscord compared with Slack
The closest comparison and Discord wins for communities outright. Free Slack hides messages older than 90 days, which destroys a community archive, and paid Slack charges per member, which is unaffordable for a community of thousands. Discord is free forever with permanent history, unlimited members, forum channels, and persistent voice. Slack's advantage is that professional audiences are already in it for work and take it seriously; Discord's is that everything else is better and free.
Slack compared with Discord
For a community, Discord wins outright. Both are free, but Discord keeps every message forever where free Slack hides anything past 90 days, and Discord adds forum channels, persistent voice, Stage events, AutoMod, and a permission system Slack does not attempt. Slack's advantages are threading, search quality, and a professional audience who take it seriously and will not install Discord. Choose Slack for a small senior peer group; choose Discord for anything that needs to last.
Choose Discord if
Any community that is free, conversational, and does not need to be found by strangers through search: developer communities, creator fan communities, hobby groups, cohort chats, alumni groups, and the free top of funnel that sits above a paid product hosted somewhere else.
Choose Slack if
Professional and industry communities under a couple of hundred members whose value is live conversation and access rather than an accumulating archive, especially where members are software or business people who already live in Slack all day and will not install anything new.
Side by side
13 attributes| Attribute | Discord | Slack |
|---|---|---|
| Category | Community | Community |
| Starting price | $0 (free plan available) | $0 (Free), then $8.75 per user per month (Pro), or $7.25 billed annually (free plan available) |
| Pricing model | Free for servers of any size. Discord monetizes through individual Nitro subscriptions, member paid Server Boosts, and a percentage cut of creator Server Subscriptions and Server Shop sales. | Per user per month subscription designed for employees, with a permanently free tier limited by message history and app count. There is no community pricing, no member tier, and no commerce layer. |
| Free plan | Everything a community needs is free and unlimited: unlimited members, unlimited message history that never expires, unlimited text, forum, voice, and Stage channels, roles and permissions, AutoMod, scheduled events, server insights, and native apps on every platform. | Unlimited members and channels, but only 90 days of visible message history, a maximum of ten apps, one to one huddles, and one to one external messaging through Slack Connect. |
| Free trial | Not applicable; the platform is free | The free plan serves as the evaluation path; paid plans are self serve |
| Best for | Any community that is free, conversational, and does not need to be found by strangers through search: developer communities, creator fan communities, hobby groups, cohort chats, alumni groups, and the free top of funnel that sits above a paid product hosted somewhere else. | Professional and industry communities under a couple of hundred members whose value is live conversation and access rather than an accumulating archive, especially where members are software or business people who already live in Slack all day and will not install anything new. |
| Setup time | Minutes to a working server, an afternoon to a well structured one. The work that matters is channel architecture, role design, onboarding, and AutoMod rules, none of which is difficult and all of which is usually skipped. | Minutes to a workspace, a day to a well organized one. The real work is deciding channel structure and writing an onboarding flow in Workflow Builder, because Slack gives new members no guidance by default. |
| Learning curve | Low for members, moderate for operators. The permission system is powerful and genuinely confusing at first, because channel overrides interact with role hierarchy in ways that surprise people, and misconfigured permissions are the most common cause of a private channel not being private. | Effectively zero for professional members, who already use it daily. Moderate for operators only because Slack's admin tooling assumes an IT context rather than a community one, and much of what a community manager wants simply is not there. |
| Platforms | Windows, macOS, Linux, iOS, Android, Web | macOS, Windows, Linux, iOS, Android, Web |
| Compliance | GDPR, COPPA age requirements, No enterprise grade compliance posture for customer communities | SOC 2, SOC 3, ISO 27001, GDPR, HIPAA support on higher tiers, FedRAMP on specific Enterprise offerings |
| Founded | 2015 | 2013 |
| Headquarters | San Francisco, California, United States | San Francisco, California, United States |
| Ownership | Venture-backed, privately held, with a confidential US IPO filing lodged in January 2026 | Owned by Salesforce |
Strengths and limitations
Discord
Strengths
- Free at every scale, with unlimited members, unlimited channels, and message history that never expires, which is the single largest practical difference from free Slack.
- Persistent voice channels produce ambient co-presence that no other product in this category replicates, and video, screen share, and Stage events cost nothing.
- Forum channels with tags and per post threads give Discord a real message board mode, which most people evaluating it do not realize exists.
- AutoMod, rules screening, onboarding flows, verification levels, and a full audit log make free Discord's moderation stack stronger than several paid platforms here.
Limitations
- Nothing is indexed by search engines. Years of good answers produce zero organic traffic, which is why an entire cottage industry of tools like Answer Overflow exists purely to mirror Discord threads onto the web.
- No custom domain, no white labelling, and no branded app at any price. Your professional community sits inside a product built for gamers.
- Search is weak and the archive is functionally unusable as a knowledge base past a few weeks, even with forum channels.
- Monetization is expensive and awkward: 10 percent to Discord on desktop plus 15 to 30 percent to Apple or Google on mobile purchases, which pushes most serious paid communities to bill through Memberful or Patreon instead.
Slack
Strengths
- Zero adoption friction with professional audiences. Software, product, and business people already have Slack open all day and will join a workspace without installing anything or learning anything.
- The best threading model in this category. Replies branch cleanly under a message instead of flooding a channel, which keeps a busy community readable in a way Discord struggles with.
- Search quality is genuinely good, with filters by person, channel, and date, and better than every free alternative here within the window it can see.
- Slack Connect on Pro shares channels with up to 250 external organizations, which is the strongest legitimate community use case Slack has for a B2B company.
Limitations
- The 90 day history limit on the free plan destroys the archive, which is the single largest source of long term community value, and Discord does not have this problem at the same price.
- Per member pricing makes upgrading impossible at community scale. A thousand members on Pro is $7,250 a month, or roughly eighty times Circle.
- No commerce layer whatsoever: no checkout, no memberships, no entitlement, so charging for access always means a third party invite tool bolted onto Stripe.
- No moderation queue, no spam classifier, and no equivalent of AutoMod. Slack assumes a workspace is full of colleagues.
Pricing compared
Discord
Free for servers of any size. Discord monetizes through individual Nitro subscriptions, member paid Server Boosts, and a percentage cut of creator Server Subscriptions and Server Shop sales.
- Free$0
- Nitro Basic$2.99
- Nitro$9.99
- Server Boosts$4.99
- Server SubscriptionsDiscord takes 10 percent
As free software, Discord is the best value in this category by an enormous margin and it is not a close contest. Unlimited members, permanent message history, forum channels, persistent voice, Stage events, granular roles, AutoMod, onboarding flows, analytics, and mature native apps on six platforms, for nothing, is a package no paid vendor here matches on features per dollar because the denominator is zero. The costs are real but they are not on an invoice. You do not own the domain, the brand, the audience list, or the archive. None of the discussion is indexed, so a knowledge base your members spend years building generates no traffic and helps nobody who has not joined. There is no email list, no course product, and no way to charge that is not expensive. The correct way to read Discord is as the baseline: work out what a paid platform gives you that Discord does not, price that difference honestly, and if the answer does not clearly exceed $1,000 a year, do not pay it.
Slack
Per user per month subscription designed for employees, with a permanently free tier limited by message history and app count. There is no community pricing, no member tier, and no commerce layer.
- Free$0
- Pro$8.75
- Business+$15
- Enterprise+Custom
Free Slack is worth using and paid Slack is not, at least not for a community. What the free plan gives you is genuine: unlimited members, unlimited channels, the best threading model in this category, strong search within its window, mature apps, a huge integration directory, and a professional audience who already have it open. What it takes away is the thing that makes a community compound. Ninety days of history means the archive never accumulates, and the members who answer the same question for the fourth time will eventually stop. Upgrading is not a fix but a different problem: at $7.25 per member per year Slack is charging you employee prices for people who are not employees, and a thousand member community would pay $87,000 a year for what Discord provides free and Circle provides for about $1,100. The correct read is that Slack is an acceptable free venue for a small professional community that trades on access rather than on archive, and a bad idea for anything else.
Editorial verdict on each
Discord
Discord is the honest baseline for this entire category and most buyers should start by admitting that. It gives away unlimited members, permanent message history, forum channels, threads, persistent voice, Stage events, granular roles, AutoMod, onboarding flows, analytics, and mature apps on six platforms, for nothing, and 250 million people are already there with the app installed. Nothing on this page competes with that on features per dollar, because the dollar is zero. What you pay instead is ownership and visibility: no custom domain, no branding, no email list, no export, no courses, and crucially no search indexing, so a decade of accumulated answers builds no traffic and disappears the moment a server does. Its own monetization is the worst part of the product, taking 10 percent on desktop and exposing you to 15 to 30 percent app store commissions on mobile, which is why nearly every paid Discord community bills through Memberful or Patreon instead. Use Discord when the community is free and conversational, pair it with Discourse when the answers should be findable, pair it with Memberful when you want to charge, and only leave it when you can name exactly what you are buying and it costs less than what you are giving up.
Read the full Discord profileSlack
Slack is where a great many professional communities live and almost none of them chose it. As a free venue for a few hundred senior people who already have it open, it is legitimately good: threading is the best in this category, search is strong, adoption friction is zero, and Slack Connect handles customer and partner channels better than anything else here. As a community platform it has two disqualifying flaws. The free plan hides everything older than 90 days, so the archive that makes a community valuable over time never accumulates, and Discord does the same job for free while keeping every message forever. And upgrading charges employee prices for people who are not employees: a thousand members on Pro is $7,250 a month, roughly eighty times what Circle costs to host the same community with permanent history, courses, events, and a checkout. There is no commerce layer at all, so charging for access means a third party invite tool bolted onto Stripe, with the fragility that implies. Use free Slack for a small professional group that trades on access. For anything that should still be useful in two years, move to Discord if you want free, Discourse if you want found, and Circle or Heartbeat if you want paid.
Read the full Slack profileDiscord profile last reviewed 2026-08-22; Slack last reviewed 2026-08-22. Pricing is compiled from public sources and can change without notice. See our methodology.