osTicket is one of the most widely used open-source ticketing systems, free under GPLv2 and self-hosted, with over 10 million downloads. Its lightweight architecture and mature SLA and knowledge base make it the go-to for budget-conscious teams.
CATEGORY · 💬
Communication providers
Compare 191 communication and business tools covering messaging, video conferencing, project management, CRM and more.
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Communication
Height is an AI-native project management tool founded in San Francisco in 2020, a YC W20 company with over $45 million in funding. AI automatically classifies tasks, assigns owners, and plans sprints to reduce repetitive management work.
Salesflare is officially an "Intelligent Sales CRM for Small Businesses", billed as the number one user-rated CRM with emphasis on ease of use and generating more leads.
HubSpot Service Hub is HubSpot's customer service module launched in 2018, deeply integrated with the free CRM and offering ticketing, SLA, knowledge base, omnichannel support, and NPS surveys. The free tier includes basic tickets, and Pro starts at about $100/month.
BoldSign is an API-first e-signature platform from US software company Syncfusion, offering 5 free documents per month and SDKs for 6 languages to help developers and businesses embed signing and enable bulk signing.
Vitally is a real-time customer health platform for B2B customer success teams, offering health scores, NPS surveys, and no-code workflow automation to help SaaS teams reduce churn and improve retention.
Hive is an all-in-one productivity and project management platform founded in San Francisco in 2014, supporting 5 views including Kanban and Gantt with 1000+ integrations. Built-in email and instant messaging, plus Action Cards and AI assistance, boost team collaboration.
Help Scout is a customer service platform founded in Boston in 2011, serving more than 20,000 companies worldwide. Shared inbox, Docs knowledge base, and Beacon in-app help are integrated into one solution, known for simple and human email support.
Dropbox Business is Dropbox's (founded 2007, San Francisco) enterprise cloud storage and collaboration platform with team folders, 180-day version history, remote wipe, and Dropbox Paper.
Smartsheet delivers multi-user real-time collaborative editing, comments and @mentions, approval workflows, and shared dashboards on a spreadsheet-style interface; founded in 2005 and headquartered in Bellevue, it serves 90%+ of the Fortune 500.
Zoho Desk is the context-aware help desk software launched by Zoho in 2016, supporting multi-channel ticketing across email, chat, phone, and social media, with built-in AI chatbot and SLA management; the free plan supports 3 agents, deeply integrated with Zoho CRM.
Invoice2go is a mobile invoicing platform for SMBs and freelancers offering 100+ industry templates and online payments with multi-currency and recurring billing, used by 200,000+ customers worldwide and acquired by Bill.com (now BILL) in 2021.
Adobe Workfront is an enterprise work management and project portfolio management platform founded in Utah, USA in 2001 (originally AtTask, acquired by Adobe in 2020), serving marketing and creative teams with resource planning and Fusion automation.
Basecamp, whose predecessor 37signals was founded in 1999 in Chicago, USA, is known for minimalist design and flat pricing at $99/month with unlimited users, making it a benchmark for remote team collaboration and project management.
Bill.com is a leading financial automation platform digitizing AP/AR management for 500,000+ SMBs, processing 25M+ invoices annually with deep QuickBooks, Xero, and NetSuite integration.
SignWell (formerly Docsketch) is a Canada-based lightweight e-signature platform with a free plan of 3 documents per month, Pro from about $25/month, offering templates, bulk sending, API, and audit trails for SMBs and individuals.
Wave is a free accounting platform founded in 2010 in Toronto, Canada, with permanently free core accounting and invoicing, monetized through Wave Payments transaction fees and Wave Payroll, ideal for micro-businesses and freelancers.
KakaoTalk is South Korea's national instant messaging app launched in 2010, covering over 97% of Korean smartphone users and evolving into a super app that combines chat, KakaoPay payments, KakaoBank banking, and mobility services.
LINE is a national-level instant messaging app launched by NHN Japan in 2011, with over 190 million monthly active users across Japan, Taiwan, and Thailand. It has grown from a chat tool into a super app spanning payments, news, e-commerce, and music, and LINE Official Account is the standard channel for businesses to reach Japanese users.
Rocket.Chat is an open-source team communication platform initiated in 2015, offering free self-hosting, end-to-end encryption, and Matrix federation, officially serving 12M+ users and 100,000+ organizations - a Slack alternative for organizations that prioritize data sovereignty and compliance.
Symphony is a secure communication platform for the financial industry founded in 2014 in New York, United States, offering end-to-end encrypted messaging, compliance archiving, and trading workflow integration to hundreds of thousands of financial professionals.
Vonage is a global cloud communications (CPaaS) platform under Ericsson, with SMS coverage across 190+ countries and voice across 60+ countries, offering SMS, voice, Verify 2FA, video, and omnichannel messaging APIs with a 99.99% SLA.
Comm100 is a Vancouver-based customer messaging platform unifying live chat, help desk, knowledge base, and AI chatbot with FedRAMP-level security, starting at about $49/agent/month.
Shortcut (formerly Clubhouse) is an agile project management tool for software teams built around a Story-driven model and iterations, with a free plan for up to 10 users, 50+ integrations, and an open API.
Moz is an SEO tool brand founded in 2004 in Seattle, creator of the DA/PA 0-100 metrics; Moz Pro, MozBar, and Moz Local cover keyword research, backlink analysis, and local SEO.
Screaming Frog is a UK-based technical SEO desktop tool brand; its SEO Spider crawls 500 URLs free and $279/year paid, and together with Log File Analyser and an API it covers auditing, log analysis and automation.
StarLeaf is a UK cloud video conferencing and unified communications platform founded in 2008, supporting up to 300 participants per meeting with a 99.999% uptime guarantee. The platform ceased operations in 2022; this page documents its capabilities and selection lessons.
Nextiva is a UCaaS platform founded in 2008 in Arizona, serving 100,000+ businesses with cloud phone, video meetings, contact center, and CRM in one solution, backed by a 99.999% uptime SLA.
Paymo is a project management and time tracking platform built by a Romanian team, serving global users since 2014. Task management, Gantt charts, time tracking, and invoicing in one workspace suit freelancers and small service teams.
Help Scout is a customer service platform founded in Boston in 2011, serving more than 20,000 companies worldwide. Shared inbox, Docs knowledge base, and Beacon in-app help are integrated into one solution, known for simple and human email support.
Fibery is a connected workspace founded in Prague in 2016 that merges database, documents and project management. The Business plan starts around $7/user/month, ideal for remote teams that want a custom data model.
Hiver is a Gmail-native customer support platform founded in 2011 in the United States, providing shared inboxes, SLA management, and AI support. The free plan has unlimited users with 3 channels, and Pro starts at $55/user/month, serving 10,000+ teams worldwide.
Expensify is a smart expense management platform founded in 2008 in San Francisco (NASDAQ: EXFY), known for SmartScan receipt scanning, with the Collect plan at $5 per member per month and 1% corporate card cash back.
Google Voice is Google's VoIP phone service launched in 2009, offering a free US local virtual number, free voicemail transcription, and free US/Canada calls and texts. The personal tier is free and the business tier integrates with Workspace as a lightweight phone communication solution.
Whereby, founded in Oslo, Norway in 2015, is a browser-native video conferencing platform with no downloads, serving more than 10 million users and offering an embedded video API and permanent room links.
Chatwoot is an open-source customer communication platform founded in 2017 in Mumbai, India; the MIT-licensed community edition is free to self-host, with a 6+ channel unified inbox and cloud plans from $15/agent/month as an open-source Intercom alternative.