SpecialistNo-brainerNonprofit offer

Slack

Team chat that replaces long email threads; free Pro plan for eligible nonprofits.

Visit site ↗Pricing ↗

Top pickThe standard team chat, with Pro free for eligible nonprofits.

See how Slack fits your setup. Add the tools you already use.

Price

Free plan · paid from US$7.25/user/month

Nonprofit offer

Yes

Available in

🌍Anywhere

Suits

Small · Medium · Large

Slack Pro free for eligible nonprofit workspaces of 250 members or fewer, and 85% off for larger ones; eligibility is based on charitable status in your country.

Apply through Slack's nonprofit discount form, supplying proof of charitable status (IRS, local charity commission or tax authority, or a local TechSoup partner). Applications reportedly take about 3 business days.

Charity Digital Exchange (UK) - now run by TechSoup UK guide →TechSoup Canada guide →TechSoup Europe guide →TechSoup New Zealand guide →TechSoup UK (formerly the Charity Digital Exchange) guide →TechSoup (United States) and the TechSoup Global Network guide →Claim it ↗

Great for

Teams of staff and volunteers who need quick day-to-day chat
Organisations with remote or hybrid staff
Teams already using Google Workspace or Microsoft 365 who want better chat than email
Free Pro plan removes the main free-plan limitation
Fast, familiar chat
Large integration library

Watch out for

Organisations whose volunteers will not install another app
Organisations that already use Microsoft Teams and do not need a second chat tool
Hospitals, schools and religious organisations (excluded from the programme)
Another app for volunteers to adopt
Excluded organisation types (hospitals, schools, religious groups, grant-making foundations)
Verification route is described differently by different sources (TechSoup vs Goodstack)

Problems it solves

“Our team's inbox is overflowing with internal emails”“I need a way to chat quickly with staff and volunteers”“Our chat history disappears after 90 days”“We have staff in different offices and need a place to talk”“I want separate channels for each programme or event”“I need to find a decision we made last month in our chat”

About Slack+

Slack is a team messaging app organised into channels, with direct messages, huddles and app integrations. Eligible nonprofits can get the Pro plan free for workspaces of up to 250 members and 85% off above that, which removes the free plan's 90-day message history limit. It suits teams that communicate constantly and want to cut email.

Pricing: Free plan: 90-day message history, up to 10 apps. Pro US$8.75 per user per month monthly or US$7.25 annually; Business+ US$18 monthly or US$15 annually. Nonprofit programme: Pro free for up to 250 members, 85% off larger workspaces; 85% off Business+ (third-party summary).

Key features+

Channels and direct messagesUnlimited message history on ProHuddles and callsUnlimited app integrations on paid plansSearch across messages and filesSlack AI features on higher plans

Works with (6)+

Google Workspace for Nonprofits

Microsoft 365 for Nonprofits

AI features+

Slack AI features (such as Slackbot as a personal AI agent) are on higher plans, including Business+.

Data & privacy+

Not confirmed on pages reviewed. Slack offers enterprise data residency options on higher plans; check before storing personal data of vulnerable people.

How sure are we?+

Partly confirmed on the vendor's pages; some details from reputable secondary sources. Prices and nonprofit programs change often, so check with Slack before you commit. Rankings on Nonprofit Tools are never for sale.

Sources · last checked 2026-10-02