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company:
tagline:
0% fee crowdfunding for social causes (1) ·
end-to-end encrypted messaging from a nonprofit (1) ·
event promotion and ticketing platform (1) ·
free self-hosted accounting software (1) ·
free uptime monitor with email alerts (1) ·
open source CRM built for nonprofits (1) ·
open source password manager, great LastPass alternative (1) ·
open-source Slack alternative with omnichannel support (1) ·
open-source Slack alternative with self-hosted free tier (1) ·
open-source video conferencing, no account required (1) ·
self-hostable, federated encrypted messaging (Matrix) (1) ·
self-hostable, open-source video conferencing (WebRTC) (1) ·
self-hosted groupware with built-in office editing (1) ·
self-hosted office suite with real-time editing (1) ·
shared scheduling via self-hosted Nextcloud (1) ·
volunteer-run anonymity network (onion routing) (1) ·
zero-fee fundraising and event platform (1)
protocol: (Click arrow to add another value)
url:
akaunting.com (1) ·
bitwarden.com (1) ·
chuffed.org (1) ·
civicrm.org (1) ·
element.io (1) ·
eventbrite.com (1) ·
jitsi.org (2) ·
mattermost.com (1) ·
montastic.com (1) ·
nextcloud.com (1) ·
nextcloud.com/calendar (1) ·
onlyoffice.com (1) ·
rocket.chat (1) ·
signal.org (1) ·
torproject.org (1) ·
zeffy.com (1)
pricing: (Click arrow to add another value)
amount: (Click arrow to add another value)
source license:
hosting:
description:
None (6) ·
End-to-end encrypted 1:1 and group messaging, plus voice/video calls, built on
the audited Signal Protocol (Double Ratchet + X3DH). ~40M monthly users. Registration
requires a phone number; usernames (added 2024) let you start chats without sharing it. (1) ·
End-to-end encrypted chat on the Matrix open standard. Anyone can run a homeserver
and servers federate like email; Element is the reference client. 115M+ addressable accounts,
with bridges to Signal, Telegram, WhatsApp and others. (1) ·
Event listing, promotion, and ticketing -- event pages, RSVP/ticket
sales, and email promotion to an audience list. Free to publish and manage free
events with no platform fee; fees only apply to paid ticket sales. (1) ·
MIT-licensed, self-hostable team chat with channels, voice/video, and broad
integration support. Its omnichannel inbox unifies live chat, email, WhatsApp, and
Telegram into one agent queue -- useful if you also want to replace a separate
customer-support tool, not just internal chat. (1) ·
Nonprofit-oriented crowdfunding platform charging no platform fee, explicitly
open to individuals, social enterprises, and unregistered community groups, not just
registered charities. Scale (per Chuffed's own reporting): 50,000+ organizers, 2.5M+
supporters, $275M+ raised to date. (1) ·
Open-source CRM purpose-built for nonprofits and advocacy groups -- donor
tracking, campaign management, event registration, and membership -- rather than a
generic sales CRM repurposed for fundraising. Integrates as a plugin into WordPress,
Drupal, or Joomla. (1) ·
Open-source password manager: unlimited passwords and devices on the free
tier, cross-platform sync, autofill. Officially self-hostable, and the community-run
Vaultwarden server is a lightweight alternative implementation for orgs that want to
run it themselves. (1) ·
Open-source video conferencing usable instantly with no account
via the free public instance, or self-hosted for full control over data and
infrastructure. (1) ·
Self-hostable double-entry accounting: invoicing, online payments, expense tracking,
multi-currency, unlimited bank/cash accounts. The free self-hosted tier is limited to one
user and one accountant -- fine for a single bookkeeper, not for a team that needs
shared access. (1) ·
Self-hostable, MIT-licensed team chat closely modeled on Slack's channel-based
UX -- includes a Slack export/import path to ease migration. Free self-hosted tier
runs indefinitely with no per-seat licensing cost; paid tiers add SSO, compliance
exports, and HIPAA/FedRAMP-aligned deployment options. (1) ·
Zero-fee fundraising, ticketing, and membership platform for nonprofits. Scale
(per Zeffy's own reporting): 100,000+ nonprofits, $2B+ raised to date. (1)
usage notes:
None (12) ·
Even the self-hosted install requires an API key that calls home to
Akaunting's servers to validate your license tier -- worth knowing if full data
sovereignty (no external dependency at all) is a hard requirement, since this isn't
quite that despite being open source. (1) ·
Fewer native integrations than Slack out of the box -- most third-party
connections go through incoming/outgoing webhooks rather than a marketplace, so budget
some setup time. Good fit for teams that want a near drop-in Slack replacement and
value Go-based, ops-friendly self-hosting. (1) ·
Has the most GitHub momentum of the self-hosted Slack alternatives
(~45k stars). The free Community edition covers most day-to-day needs; exceeding
Starter-plan limits blocks adding new users but does not lock you out of existing
data. (1) ·
Syncs with any CalDAV-compatible client (Thunderbird, most phone calendar
apps) so people aren't locked into a web UI. (1) ·
The free plan supports up to 20 email alert recipients — sufficient
for most small organizations. Webhook triggers allow integration with custom
scripts or chat tools on status changes. (1)
rejected alternatives:
None (15) ·
Relying on the public matrix.org homeserver reintroduces an
operator/jurisdiction -- self-host to get the benefit. Discord and Slack are centralized and
not end-to-end encrypted. (1) ·
WhatsApp (uses the Signal protocol but is Meta-owned and harvests
metadata) and Telegram (chats are not end-to-end encrypted by default, weaker crypto). (1)
Showing below up to 17 results in range #1 to #17.