团队协作工具 Tools for Teams and Collaboration

A free cloud-based code snippet manager for personal and collaborative code.

Free all-on-one bookmark manager, tab manager, and task manager in a customizable online desktop with folder collaboration.

Chat app designed for teams. Free for public access group, unlimited users, history, and integrations. also, it provides a self-hostable open-source version.

Calendly is the tool for connecting and scheduling meetings. The free plan provides 1 Calendar connection per user and Unlimited sessions. Desktop and Mobile apps are also offered.

Find the perfect time and date for a meeting. Simple to use, works great for small and large groups.

Private document editor hosted in Canada. Write, format, collaborate, and publish documents with clean public links. Data is never used for AI training. Free plan includes 50 MB storage, up to 3 public links, and export to PDF, Word, and Markdown.

Chanty is another alternative to Slack. It has a free forever plan for small teams (up to 10) with unlimited public and private conversations, searchable history, unlimited 1:1 audio calls, unlimited voice messages, ten integrations, and 20 GB storage per team.

Online developer tools offering free access to all basic tools, with the ability to auto save one entry per tool, standard processing speed, and community support.

Chat with public/private rooms. Markdown text, voice, video, and screen sharing capabilities. Free for unlimited users.

Free Step-by-Step Guide creator. Take screenshots, document processes and collaborate with your team. Also supports async screen recording.

Talk and collaborate in real time with your team. Pair programming with IDE, terminal sharing, voice, video, and screen sharing. Free for small teams.

A decentralized and open-source communication tool built on Matrix. Group chats, direct messaging, encrypted file transfers, voice and video chats, and easy integration with other services.

Tool for organizing information. Share your notes and work together with others

Connected workspace platform. Free for single users, up to 2 GB disk space.

A free online realtime scrum poker tool for agile teams that lets unlimited members estimate story points for faster planning.

Kanban-based platform for project management and issue tracking. Create public boards, set up webhooks, use card stamping, and track unlimited users - free for up to 1000 items.

Interactive customizable spaces for team meetings & happy hours socials. Unlimited meetings, free up to 8 concurrent users.

A faster way for your team to communicate. Free Unlimited Messages, Channels, Users, Apps & Integrations

Privacy-first live chat widget for websites (~15KB, no cookies, no tracking). Free plan includes 1 site, unlimited messages, a built-in AI chatbot (25 replies/mo), 30-day history, Gmail threading, canned responses and push notifications. No credit card required.

Platform for capturing and documenting technical knowledge - from product docs to internal knowledge bases and APIs. Free plan for individual developers.

Daily reports of your team's Commit and Pull Request activity on GitHub. Includes Push visualizer, peer recognition system, and custom alert builder. The free tier has unlimited users, three repos, and 3 alert configs.

Chat, for GitHub. Unlimited public and private rooms, free for teams of up to 25

Syntax-based, no registration Kanban Board for fast use. Free with no limitations.

Real time collaboration & writing tool for markdown format docs/files. Like Google Docs but for markdown files. Free unlimited number of "notes", but the number of collaborators (invitee) for private notes & template will be limited.

Task management tool with chat, calendar, timeline and video calls. Free for up to 5 users.

All-in-One Project Management Platform (alternative to Linear, Jira, Slack, Notion, Motion) - unlimited users, 10GB storage per workspace, 10GB video(audio) traffic.

Keybase is a FOSS alternative to Slack; it keeps everyone's chats and files safe, from families to communities to companies.

Free-forever contact layer for indie developers and small teams: live chat widget for websites and mobile apps (iOS/Android/Flutter/React Native via WebView), a shareable contact page (Linktree-style with socials, booking links, and blog), and a unified Telegram/email inbox. Reply from Telegram directly (no dashboard needed). Meeting scheduler, multi-language, light/dark themes. Companion open-source AI auto-reply agent. No ads, no seat limits.

Bookmark manager for teams with tagging, multi-workspaces, and collaboration. Free plan includes 4 workspaces and 10 team members.

Reserve and lock shared resources within Slack like Rooms, Dev environments , servers etc. Free for upto 2 resources

One-click video conversations, and screen sharing, for free

Scalable, secure, cross-device, and enterprise-ready collaboration whiteboard for distributed teams. With a freemium plan.

Notion is a note-taking and collaboration application with markdown support that integrates tasks, wikis, and databases. The company describes the app as an all-in-one workspace for note-taking, project management and task management. In addition to cross-platform apps, it can be accessed via most web browsers.

A lightweight and collaborative wiki for all your team's knowledge, docs, and notes. Free plan with all essential features, up to 50 items, and 5GB storage.

Free code interview platform with embedded video chat, drawing board, and online code editor where you can compile and run your code on the browser. You can create a remote interview room with just one click.

This is a JavaScript and the Crypto based simple paste site.

Beautiful and simple Pastebin with optional Client-Encryption, Multitab-Pastes, an API, a highlighted Editor and more.

Pendulums is a free time tracking tool that helps you manage your time in a better manner with an easy-to-use interface and valuable statistics.

Password manager with built-in email aliases, 2FA authenticator, sharing and passkeys. Available on web, browser extension, and mobile app and desktop.

Pullflow offers an AI-enhanced platform for code review collaboration across GitHub, Slack, and VS Code.

Free team chat app. Unlimited users and message history, free forever.

A simple timesheet and time tracking app for teams. The free plan has time tracking and generating reports features for up to 10 users.

Private and secure bookmarking app for macOS, Windows, Android, iOS, and Web. Free Unlimited Bookmarks and Collaboration.

Spec-driven development workflow for teams: shifts review left so problems get caught before code is written, instead of piling up in code review. Builds a knowledge graph of your business as you go, which the AI agents use for later features. Free plan: 3 seats, 1 project, 5 features/month.

An OpenSource alternative forDiscord, that respects your privacy. It also have most proprietary features from discord for free. Revolt is a all in one application that is secure and fast, while being 100% free. every features are free. They also have (official & unofficial) plugins support unlike most main-stream chatting applications.

Open-source communication platform with Omnichannel features, Matrix Federation, Bridge with others apps, Unlimited messaging, and Full messaging history.

The best all-in-one feedback tool to collect digital feedback and review websites, PDFs, and images.

Free screen sharing tool, share your screen with collabrators right from your browser, no download or registration needed. For free.

Private or cloud storage, file sharing, sync, discussions. The cloud version has just 1 GB

Share feedback for website projects directly on your website, no emulation, canvas or workarounds. Completely functional free tier.

A modern knowledge management service for teams. Free for up to 10 users.

Free for unlimited users with some feature limitations

A status page of status pages. Could you track the status pages of your upstream providers?

Visual collaboration app used for brainstorming, content curation, and notes. Free for up to 3 Walls, unlimited users, and 1 GB storage.

Free HD virtual backgrounds for video calls on Zoom, Microsoft Teams, and Google Meet. 1,000+ studio-designed environments with no signup required.

Free group video chat. Anonymous. Peer‑to‑peer. No plugins, signup, or payment required

All-in-one project management application for software development companies.

Free Project, Task, and Issue-tracking software. Supports Kanban with Swimlanes and full Scrum implementation. Has integrated time tracking. Free for five users and three project portfolios.

improve team development processes with Team Analytics and Smart Daily Standup. Includes full-featured Time Off management for remote-first teams. Free for small groups of up to 5 users.

Telegram is for everyone who wants fast, reliable messaging and calls. Business users and small teams may like the large groups, usernames, desktop apps, and powerful file-sharing options.

Tencent Real-Time Communication (TRTC) offers solutions for group audio/video calls.10,000 free minutes/month for the first year.

Free time tracking software for unlimited users. Easily integrates with PM tools like Jira, Trello, Asana, etc.

Free open-source white-boarding and diagramming tool with intelligent arrows, snapping, sticky notes, and SVG export features. Multiplayer mode for collaborative editing. Free official VS Code extension available as well.

simplest, fastest and safest interface to transfer and share files. Send photos, videos and other large files without a mandatory subscription.

Preview every pull request, automated and on-demand. Free for all, complimentary Nano tier for non-profits.

An asynchronous-friendly team communication app where conversations stay organized and on-topic. Free and Unlimited plans are available. Discounts are provided for eligible teams.

Interconnected online personas, user stories and context mapping. Helps keep design and dev in sync free for up to 3 personas and two collaborators.

A Visual feedback tool for better client-dev communication

Video meetings with a free plan offering 40 minutes per meeting with 100 attendees.

Website feedback tool, website review software, and bug reporting tool for streamlining web development collaboration on tasks directly on live websites and web apps, images, PDFs, and design files.

One-click video conversations, for free (formerly known as appear.in)

Windmill is an open-source developer platform to quickly build production-grade multi-step automation and internal apps from minimal Python and Typescript scripts. As a free user, you can create and be a member of at most three non-premium workspaces.

Video hosting with viewer analytics, HD video delivery, and marketing tools to help understand your visitors, 25 videos, and Wistia branded player

Straightforward file sharing service. Share unlimited files up to 5GB with as many peers as you want.

Share files up to 5GB with end-to-end encryption for up to 24hours. For files larger than 5 GB, it uses peer-to-peer transfer to send your files directly.

Secure Video and Web conferencing add-ons available. The free plan is limited to 40 minutes.

Real-time chat with a unique email-like threading model. The free plan includes 10,000 messages of search history and File storage up to 5 GB. also, it provides a self-hostable open-source version.

Easily collect feedback from your customers, turn customer feedback into your product roadmap. Collect, prioritize, and ship features that actually matter to your users.

Time tracking and invoicing for freelancers and small teams. Free plan includes 1 user, 3 active projects and 3 invoices per month.