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Tag

chat

7 catalogue entries use this topic; each Project's license policy is labeled separately.

LobeChat

LobeChatAI

Polished chat interface for many model providers

Stars82.1K
Commit8h ago
LicenseUnknown

LobeChat is the most designed of the open chat front ends. Plugins, an assistant marketplace, voice input and output, and vision support are all present, and the interface holds up next to commercial products.

Alternative tochatgpt
Mattermost

MattermostOpen

Team messaging for organisations that cannot use hosted chat

Stars33.2K
Commit19h ago
LicenseAGPL-3.0

Mattermost is channel-based team chat designed for environments where the message history has to stay inside a boundary: defence, healthcare, and regulated finance are its natural constituency.

Alternative toslack
ChatGPT

ChatGPTAI

OpenAI's assistant and the interface that set the pattern

CompanyOpenAI
Since2022
PricingFreemium

ChatGPT is the product that made conversational assistants ordinary. Beyond the chat box it now covers file analysis, image generation, web browsing, voice, and custom assistants sharing one account.

Claude

ClaudeAI

Anthropic's assistant, strongest on long documents and code

CompanyAnthropic
Since2023
PricingFreemium

Claude is positioned around careful reasoning over long inputs. The large context window makes whole-repository and long-document work practical in a way that shorter context assistants cannot match.

Alternative tochatgpt
Discord

Discord

Voice, video, and text communities organised into servers

CompanyDiscord
Since2015
PricingFreemium

Discord was built for people who wanted to talk while doing something else, and that origin still shapes it. Persistent voice rooms you drop into, rather than scheduled calls, is a genuinely different model from workplace chat.

Alternative toslack
Microsoft Teams

Microsoft Teams

Chat, calls, and files bundled into Microsoft 365

CompanyMicrosoft
Since2017
PricingFreemium

Teams wins on bundling rather than on craft. If an organisation already pays for Microsoft 365, Teams arrives at no additional cost with identity, files, and calendar already wired together.

Alternative toslack
Slack

Slack

Channel based team messaging with a large integration ecosystem

CompanySalesforce
Since2013
PricingFreemium

Slack replaced internal email for a generation of companies by making conversation searchable and public by default. Channels, threads, and a very large app directory are the shape most team chat now copies.