OpenGTM turns a market, a list, or a workbook into enriched, researched, ready-to-contact prospects on servers you control. Give it a market and it sources companies and people; hand it a CSV or a Clay table and it maps the columns into a shared record library. Enrichment columns run as waterfalls that try providers in cost order until a field is filled, and before anything spends a cent you see best and worst case estimates, with a workbook budget ceiling that halts paid calls on its own. Research columns send an agent to answer the hard question for each row, and the answer keeps citations to the pages it actually fetched, so a human can audit the claim before outreach. Live audiences segment your records and watch for hiring and buying signals, refreshing on schedules and firing automations when a prospect heats up. Finished rows flow out to HubSpot, Salesforce, Slack, Sheets, Airtable, Instantly, Smartlead, webhooks, or a warehouse, while every cell keeps a trace of provider attempts, latency, and cost. Your own agents get the same workspace through a REST API, webhooks, and an MCP server with scoped read and write tokens, and a seeded zero-key demo means the team can explore the whole loop before adding a single provider key under Settings. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.

Cold outreach dies in the spam folder long before a prospect reads it, and Warmbly is the open-source platform that keeps your mailboxes warm, capped, and credible while campaigns run from the accounts you already own. Connect Google Workspace, Microsoft 365, or any SMTP and IMAP mailbox, and Warmbly checks SPF and DMARC records, scores mailbox health, then warms each account gradually, starting near 10 messages a day and ramping toward a 40-per-day ceiling instead of blasting from day one. Campaigns run as multi-step sequences spread across many mailboxes, with per-mailbox daily caps, minimum spacing between sends, and weekday sending windows, so volume grows without one account absorbing all the risk. Opens, clicks, bounces, and complaints stream into a deliverability view with suppression handling, while every reply from every mailbox lands in one unified inbox your whole team can work in real time. A built-in CRM tracks contacts, pipelines, deals, tasks, and meetings next to the conversations that created them. Visual playbooks react the moment a reply, booking, bounce, or warmup dip arrives: branch on intent or confidence, let an AI step read the reply and act only with the actions you allow, open the deal, post to Slack, update HubSpot or Pipedrive, and test the whole path on a canvas before it goes live. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. Apache-2.0 licensed.

Cold outreach works better when your sending platform does not charge per seat and per contact for the privilege. Quickly runs multi-step email sequences across unlimited connected Gmail and Microsoft 365 inboxes, rotating sends automatically while respecting each inbox's daily limit. Because messages go out through Google and Microsoft's official OAuth APIs, they ride those providers' own infrastructure and reputation instead of a shared SMTP pool. You personalize every step with template variables drawn from your CSV import, split subject and body variants for A/B testing, and let bounce detection stop bad addresses before they hurt your domains. Replies from every account land in one unified inbox with threaded conversations, and AI classification sorts each reply as interested, not interested, out of office, wrong person, auto-reply, or unsubscribed, with Ollama available for fully offline classification. Analytics break performance down per campaign and per step with open, click, and reply rates and timeline charts, while a system health dashboard watches inbox token health and tracking domain reachability. Fifteen webhook event types and more than ninety REST endpoints feed tools like n8n, an MCP server exposes lead tools to AI assistants, and a test mode simulates sends, opens, and clicks without delivering anything. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.

GrowChief delivers a self-hostable social media automation engine that replaces expensive SaaS tools like PhantomBuster, Expandi, and Zopto with a Docker-deployable alternative you fully control. The React and NestJS monorepo architecture runs headful Chrome via xvfb with Playwright and Patchright for maximum stealth — natural mouse movements and randomized interaction patterns make automation indistinguishable from manual browsing. Temporal orchestration manages workflow execution with built-in concurrency control that throttles actions to one every ten minutes per account even when ten workflows trigger simultaneously, preventing rate-limiting and account flags. The enrichment waterfall resolves profile URLs from partial data — provide an email address or organization name and GrowChief queries multiple providers to locate the correct social profile automatically. Working hours scheduling ensures outreach runs only during configurable business hours regardless of when leads enter the pipeline via the public REST API. Proxy support accepts custom SOCKS5 and HTTP proxies per account for geographic distribution and IP isolation. The public API enables full workflow management and lead injection from n8n, Make, Zapier, or any HTTP client, with a dedicated n8n custom node shipping ready to install. The multi-step workflow builder lets you chain connection requests, profile visits, message sends, and conditional delays into repeatable sequences. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.

Teams tired of paying Salesforce or HubSpot per seat run EspoCRM: an AGPL-licensed PHP application with a fast single-page frontend over a REST API, covering sales, support, and marketing in one uncluttered interface. The sales core is complete - leads, contacts, accounts, opportunities with customizable pipeline stages, kanban views, calendars, meetings, and calls. Email is deeply integrated rather than bolted on: IMAP sync links messages to CRM records automatically, and mass email campaigns run with reusable templates, tracking, and Web-to-Lead forms feeding the funnel. Support teams get case management and a customer portal where clients track their own tickets and access a knowledge base. The real differentiator is the Entity Manager: create custom entities, fields, relationships, and layouts from the admin UI without code, with dynamic logic showing or hiding fields conditionally - EspoCRM is as much a business-application platform as a CRM. Formula scripting handles calculated fields and record automation in the free core; the optional Advanced Pack adds visual BPM process design and workflow rules. Role-based permissions with team and territory scoping, full-text search, reports, and a straightforward REST API for n8n or custom integrations round it out. Runs on PHP 8.3+ with MySQL, MariaDB, or PostgreSQL - unlimited users, zero per-seat fees.

Salesforce's core workflow, open-source and on your own server: Twenty is a modern CRM built as exactly that alternative. It ships the standard CRM objects out of the box: people, companies, opportunities, notes, and tasks, displayed in table and kanban views with drag-and-drop and real-time updates. Its defining technical feature is a metadata-driven data model: you define custom objects and fields in the UI, and the backend regenerates its GraphQL schema at runtime, so a new object gets working queries, mutations, filters, and sorting within seconds, with no migrations to run - adapting the CRM to your sales process never requires code changes. A REST API is auto-generated from the same schema, GraphQL subscriptions push real-time updates, and webhooks fire on record changes for external integration. A visual workflow builder automates actions like notifications and field updates, TypeScript-based apps extend the platform with custom logic and frontend components, and email and calendar sync pulls Gmail messages and meetings onto contact timelines so communication history sits next to the record. The stack is NestJS with TypeORM, PostgreSQL, Redis, and BullMQ on the backend, React with Jotai on the frontend. Self-hosting on RepoCloud means unlimited users with no per-seat licensing - the pricing model that penalizes growing teams on commercial CRMs - and your pipeline, contacts, and deal history live in your own PostgreSQL database rather than a vendor's.

Krayin CRM gives sales teams a visual Kanban pipeline where leads flow through configurable stages — new, contacted, qualified, proposal, won, lost — with deal values tracked per stage, drag-and-drop transitions, and AI-powered document import that extracts contact details from uploaded PDFs, DOCs, and images without manual data entry. Built on Laravel 12 with a Vue.js frontend and MySQL database, the platform delivers complete customer lifecycle management through a two-stage contact model separating unqualified Leads from qualified Persons linked to Organizations, with a unified timeline displaying associated activities, notes, emails, and deals. The activity module schedules calls, meetings, and tasks on a drag-and-drop calendar with reminders and team assignment. A built-in product catalog supports line-item quoting with pricing and quantities. Email integration connects via SMTP, IMAP, and SendGrid parsing, linked to leads and contacts automatically. Workflow automation triggers actions on conditions and pushes events to external systems via webhooks. The dashboard visualizes pipeline performance, top customers, top products, and email engagement with pie charts and trend widgets. Custom attributes add text, number, date, boolean, and dropdown fields to any entity. Role-based ACLs manage team permissions per module. Extensions add multi-tenant SaaS, WhatsApp lead generation, and VoIP calling. Deploy via Docker Compose. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.

With 3,300+ GitHub stars, 200+ releases, and v1.77 shipping in July 2026, Frappe CRM delivers enterprise CRM capabilities without per-seat licensing costs that plague Salesforce and HubSpot deployments. The Python backend running on Frappe Framework v15/v16 with MariaDB and Redis pairs with a Vue 3 frontend using Pinia state management, Vue Router, and the Frappe UI component library styled with Tailwind CSS v3. All-in-one lead and deal pages consolidate activities, comments, notes, tasks, call logs, and email history into a single scrollable view while the drag-and-drop Kanban board provides visual pipeline tracking across configurable stages. Built-in Twilio integration enables click-to-call with recording directly from deal pages, Exotel routes calls through agent mobile phones, and WhatsApp messaging connects via the Frappe WhatsApp module for conversational sales. A visual field layout editor lets non-technical users customize CRM forms, sidepanels, and grid views with real-time drag-and-drop without writing code. The Service Level Agreement engine tracks first-response and rolling-response times against configurable policies with automatic escalation. Meta integration captures leads from Facebook and Instagram ad campaigns directly into the pipeline. ERPNext connectivity extends CRM into invoicing, accounting, inventory, and purchasing with native data flow. Docker Compose deployment with a single command provisions a production-ready instance. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.

A campaign engine wrapped around a contact database: Mautic, the largest open-source marketing automation platform, replaces HubSpot or Marketo without per-contact pricing. Contacts arrive through forms, landing pages, imports, or the REST API and flow into segments: dynamic filters that update automatically from behavior, custom profile fields, or point scores. Segments decide who qualifies; campaigns decide what happens. The drag-and-drop Campaign Builder composes multi-step workflows from actions, positive/negative decision trees, and conditions (field values, tags, device type, segment membership, point thresholds), with static or relative delays, a Jump-to-Step action for moving contacts between branches, and handoffs that push contacts into CRMs or entirely different campaigns. Messaging covers email, SMS, and web/app push out of the box, with A/B testing and a drag-and-drop email builder; dynamic website content swaps page sections per known contact. Lead scoring assigns points for clicks and visits with decay for inactivity, while stages track funnel position. Native integrations cover Salesforce, HubSpot, Zoho, and Dynamics, plus a full REST API for custom sync. It runs on PHP and MySQL with cron jobs processing campaigns and segment rebuilds - self-hosting keeps your entire contact database and behavioral history under your control.

Your customer relationships deserve better than a spreadsheet and a prayer: SuiteCRM gives sales, support, and marketing teams one shared system for every account, contact, lead, and deal. Track opportunities through your pipeline with stages, amounts, and close dates, then quote and invoice directly from the won deal without retyping a single line item. Support agents work cases with queues, assignments, and email threading, while marketers build target lists, run email campaigns, and measure opens and clicks against the same records sales uses. Reports query across any modules with grouping, aggregation, and charts, export to CSV or PDF, land on dashboards as dashlets, and arrive by scheduled email so Monday's pipeline review writes itself. Workflow rules react to record changes by sending notifications, creating tasks, updating fields, or calling webhooks, quietly handling the follow-up work humans forget. Roles and security groups decide exactly which teams see which records, down to individual fields, and the audit log remembers every change. Administrators reshape the system without code in Studio, adding fields (including image and file fields), rearranging layouts, and building whole custom modules, while the REST API connects SuiteCRM to your website forms, telephony, and accounting tools. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.

Follow every sale from first inquiry to final payment inside one self-hosted CRM. Cordys CRM splits the lead-to-cash cycle into connected modules: leads with custom forms and one-click conversion, customers with contact records and shared follow-up among team members, and opportunities that advance through configurable stages from needs confirmation to won or lost. Quotations and contracts come next, with contracts carrying payment plans, payment records, business titles, and invoice records so every collection stays traceable. Orders link to contracts and move through a customizable status flow covering shipment requests, partial and full shipment, inspection, and completion. Approval workflows route requests to reviewers and keep an approval history, and real-time notifications reach users while they work. Administrators draw the organization chart, assign role-based permissions, configure modules and form fields without code, and review system logs. An MCP server secured with per-user API keys lets MaxKB agents search records, create leads, customers, opportunities, and contacts, log follow-ups, and update accounts, while an Agents module embeds those assistants in the CRM and CRM Skills connect OpenClaw and WorkBuddy to the sales process. Sales data can feed DataEase dashboards, WeCom, DingTalk, and Lark integrations link departments and messages to the office platforms teams already use, and the interface ships in English and Chinese. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. GPL-3.0 licensed with FIT2CLOUD branding terms.

Relaticle delivers the first CRM built from the ground up for both human operators and AI agents — a self-hosted platform where Claude, GPT, Gemini, or any custom model connects through a production-grade MCP server exposing 30 tools for full CRUD operations across companies, people, opportunities, tasks, and notes without a single line of integration code. The 22 custom field types include text, email, phone, currency, date, select, multiselect, entity relationships, conditional visibility rules, and per-field encryption — all configurable through the UI without database migrations or code changes. Multi-team isolation enforces data boundaries through a 5-layer authorization system with team-scoped workspaces, API tokens, and granular permissions. The JSON:API REST surface provides Spatie QueryBuilder filtering, sorting, and pagination with schema discovery endpoints that let agents introspect your data model at runtime. A built-in AI chat connects directly to CRM data for natural language queries, while the external MCP server gives any compatible agent the same 30-tool access. Docker Compose deployment runs five containers — app (nginx + PHP-FPM), Horizon queue worker, scheduler, PostgreSQL 17, and Redis 7 — with automatic migrations on startup and demo data seeding for new teams. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.

This is a marketing operations control center that replaces fragmented CRM, outreach, content, and analytics tools with a unified self-hosted interface designed for AI agent-assisted go-to-market teams. The CRM module manages leads through a configurable pipeline funnel with stages from New through Sequenced, Replied, Interested, and Booked, tracking source attribution, industry segments, company size, lead quality scores, and LinkedIn URLs per contact. Outreach sequencing supports email campaigns with pause controls, audit endpoints, suppression workflows, and engagement tracking. The content operations surface provides calendar views, content item management, performance metrics, and approval queues for editorial control. Analytics and KPI dashboards show impressions, engagement, and send volumes over configurable time periods, with optional connectors to Plausible, Google Analytics 4, X, and LinkedIn for cross-platform reporting. The OpenClaw-native agent runtime enables dynamic agent and squad discovery, workspace management, session monitoring, and communications surfaces. Automation scheduling uses cron job templates with OpenClaw-compatible schedule variants including cron expressions, every intervals, and at timestamps. The tech stack combines Next.js 16 App Router with React 19, Tailwind CSS 4, Recharts, and Zustand for state management. Authentication supports session cookies, API keys, and optional Google OAuth with role-based access controls. All state persists locally in SQLite via better-sqlite3 with no required external infrastructure. On RepoCloud, deploy Marketing Dashboard on a dedicated VPS with persistent SQLite storage, root SSH access, and complete control over your marketing operations data, all under the MIT license.

phpList runs the whole mailing operation on your own server instead of a platform that charges by the subscriber: compose campaigns in the web editor, personalise every message, and send to hundreds or millions of subscribers on your schedule. Build lists around your audience, with custom attributes for name, country, language, or anything else, imported from CSV files, your shop, your blog, or your own database, and kept in step with a foreign key. Placeholders turn one campaign into a personal message per reader, and segmentation with exclusion lists aims each send at exactly the right slice. Double opt-in signups, preference pages, and a do-not-send list keep list quality high and complaints low. The queue makes sure nobody receives the same campaign twice across overlapping lists, and embargoes plus scheduling send at the moment you choose. Bounces are processed automatically, and statistics report opens, clicks, and forwards per campaign, per link, and per subscriber, ready to export as CSV. Subscribe pages in your design and language, a REST API, plugins, and multiple administrators with their own permissions round it out for teams. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.

Seven million emails from a single binary peaking at 57 MB of RAM: listmonk is a high-performance newsletter and mailing list manager in Go with PostgreSQL as its only dependency - no Redis, no worker processes, no message broker. The project's own production benchmark sent 7+ million emails with the binary peaking around 57 MB of RAM, and throughput exceeds 100K emails per hour on modest hardware. Campaigns run through a multi-threaded, multi-SMTP queue with round-robin delivery, per-server concurrency, retries, and sliding-window rate limiting across providers like Amazon SES, SendGrid, Mailgun, or your own Postfix relay. Subscribers carry custom JSON attributes and are segmented with raw SQL queries, so any audience Postgres can express, listmonk can target. Templates use Go template syntax with 100+ functions for dynamic per-subscriber content, and the Vue dashboard reports opens, clicks, bounces, and unsubscribes with automated bounce processing. A REST API handles transactional email and programmatic control, a built-in media library hosts campaign assets, and CSV or API import migrates lists from hosted platforms. The economics are the headline: where Mailchimp pricing scales with list size, listmonk plus Amazon SES sends the same volume for hosting cost plus roughly $0.10 per thousand emails - commonly a 95% reduction - and your email list, a core business asset, stays on your own infrastructure. AGPLv3-licensed; bring your own SMTP provider for delivery.

A fair-source chatbot and conversational-form builder: Typebot assembles conversations in a visual graph editor. In a visual graph editor you chain blocks from four categories: bubbles display text, images, video, audio, and embeds; inputs collect data through text fields, email, phone, buttons, picture choices, date pickers, file uploads, and Stripe payments; logic blocks handle conditional branching, variables, URL redirects, A/B testing, and custom JavaScript; integration blocks call webhooks, OpenAI, Google Sheets, Google Analytics, Meta Pixel, Zapier, Make, and Chatwoot. Build once, deploy anywhere: custom domains, WhatsApp, or embedded in any site as a container, popup, or chat bubble through a fast native JS library with no iframe and no external dependencies - plus an HTTP API for executing bots programmatically from any language. Theming covers fonts, colors, roundness, and shadows with custom CSS and reusable templates, and results arrive in real time with drop-off and completion analytics plus CSV export. Two Next.js apps (builder and viewer) self-host via Docker under the Functional Source License, which converts to Apache 2.0 after two years.

Evolution API gives your applications a production-ready REST interface to WhatsApp, supporting both free Baileys-based Web connections and Meta's official Business Cloud API from the same server. With 9,200+ stars and 7,100+ forks, it is the most widely deployed WhatsApp integration layer available. Each installation handles unlimited isolated instances (one per phone number) with independent auth, webhooks, and database separation via Prisma ORM against PostgreSQL or MySQL, cached through Redis. Message types include text, images, audio, video, documents, contacts, locations, interactive buttons, list messages, carousel cards, and PIX payment links through unified endpoints. Native integrations connect to Typebot for chatbot flows, Chatwoot for multi-agent support, Dify and OpenAI for AI conversations, N8N and Flowise for workflow automation, and RabbitMQ, Kafka, or SQS for enterprise event streaming. Socket.io delivers real-time message and connection events. Amazon S3 or MinIO handles media offloading. The Evolution Manager v2 dashboard provides visual instance creation, QR code scanning, connection monitoring, and integration configuration without touching the API directly. Docker Compose bundles the server, PostgreSQL, and Redis with environment-variable-driven setup. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. Apache 2.0 licensed.

WhatsApp is where your customers already are, and Waxum is the self-hosted gateway that lets your own software talk to them there without renting a per-message platform. One REST API fronts two providers at once: multi-device sessions paired by QR code or pairing code, and Meta's official Cloud API, sharing the same message routes and webhook events. Send text, media, locations, contact cards, polls, reactions, and broadcast lists, schedule messages for later, or run paced bulk blasts with deduplication, retries, and a dead-letter queue when a send fails. Voice and video calls ring, play audio, speak text in hundreds of voices, record the peer side, and stream media over WebSocket, while groups, contacts, blocking, privacy settings, and presence are all manageable per session. Signed webhooks with event filters and circuit breakers push receipts and replies into your app, and a failed delivery can be replayed from the queue instead of lost. The built-in ops console shows your whole session fleet, and each session opens a playground covering dozens of endpoints, so you can test a send from the browser before writing code. Sessions export and import between instances as zip files, and Prometheus metrics with health probes keep the fleet observable. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.