What is Open Mercato? Complete Guide [2026]
One system instead of four tools — CRM, ERP, B2B portal and automation. Open source, zero per-user licence fees, implementation in 4-14 weeks. Meet Open Mercato.
What is Open Mercato
Open Mercato is an open-source CRM, ERP and B2B Commerce system designed for small and medium-sized enterprises. It combines customer relationship management, enterprise resource planning and B2B e-commerce in a single, modular platform. The system is used primarily by manufacturers, distributors and B2B sellers — organisations that need one unified tool instead of juggling four or more disconnected applications.
The platform is built on a proven technology stack: Python and JavaScript on the application side, PostgreSQL as the database and a REST API for integration with external systems. Unlike closed solutions such as Salesforce or SAP, the full source code is available — meaning no per-user licence fees, full control over your data and the ability to host on your own infrastructure or in the cloud.
The system solves concrete problems: it replaces spreadsheets scattered across departments, eliminates vendor lock-in tied to proprietary platforms and consolidates CRM, ERP and an ordering portal into one place. Its modular architecture lets you start with one area — such as CRM — and gradually expand with additional capabilities, without migration or platform changes. An active developer community maintains the project, delivering regular updates and security patches.
Key Open Mercato Modules
Eight modules you can implement together or independently.
Open Mercato CRM Implementation
We set up your sales pipeline, contact records, automated follow-ups and reports. Your sales team opens the system and sees exactly what they need to do today.
Open Mercato ERP Implementation
We configure order workflows, stock levels, production tracking and invoicing. Instead of 4 spreadsheets and 3 email threads — one system that actually agrees with itself.
Open Mercato B2B Commerce Implementation
We build an ordering portal for your B2B customers — product configurator, individual price lists, order history. Your clients order on their own, no phone calls needed.
Integrations & Data Migrations
We connect Open Mercato to what you already have — accounting, warehouse, e-commerce platforms. Data from your current system gets moved over without any downtime.
Open Mercato Self-Service Portals
We build customer and partner portals — forms, guided flows, ticket history. Your clients help themselves without tying up your back office.
Open Mercato Workflows Implementation
We configure automated document and process flows — approvals, escalations, notifications. Instead of chasing people manually — the system handles it for you.
Open Mercato Production Management
We set up the production module — work orders, schedules, stage automation and reporting. Production under control in one place.
Open Mercato AI Assistant
We deploy the built-in AI assistant — it searches data, answers team questions, and triggers actions in the system. Your people ask in plain language, the system responds.
Why open source?
Four reasons companies choose this platform over closed systems.
No vendor lock-in
Full access to source code. You can switch implementation partners, develop the system yourself or move it to different infrastructure — with zero restrictions.
Full control over code
Every element of the system can be customised to your processes. You're not limited to what the vendor offers — modify and extend without limits.
No per-user licence fees
You pay for implementation and support, not licences. With 20 users, Salesforce costs over EUR 7,000/year in licences alone. With this system — zero.
Active community
Thousands of developers contribute to the platform. Regular updates, new features, security patches — without waiting for one vendor's roadmap.
Want to see what Open Mercato looks like from the inside?
Book a 15-minute demoWho is Open Mercato for
Four business segments that most commonly implement the system.
SME manufacturing
Manufacturing companies of 10-200 people that need work order management, scheduling, inventory tracking and customer relationship management in one place.
Distribution & wholesale
Distributors and wholesalers looking to automate order workflows, individual price lists and accounting system integrations.
B2B e-commerce
B2B companies that need an ordering portal for business customers — with product configurator, order history and individual pricing.
Looking for an alternative
Companies that have outgrown Excel or want to move away from expensive closed systems (Salesforce, SAP, Dynamics) to a flexible, open solution.
Not sure if the system fits your business?
Let's talk — 30 min, no strings attachedHow Open Mercato implementation works
Five stages from first conversation to live system. A typical implementation takes 4-14 weeks.
Audit & implementation plan
Week 1-2We talk to your team, map your processes, find the biggest pain points. You get a document with the Open Mercato implementation scope, timeline and a fixed quote.
Technical design
Week 3We prepare the system architecture, integration plan and data structure. You see a blueprint of what we're going to build — no surprises.
Build & configuration
Week 4-8We configure Open Mercato modules, build integrations, test everything. Weekly live demo — you see progress and give feedback as we go.
Training & system launch
Week 9-10We train your team on the live system, migrate production data, and switch it on. We're with you on implementation launch day.
Post-implementation support
OngoingAfter the Open Mercato implementation, we don't disappear. We monitor the system, fix what needs fixing, and add features as your business grows.
How much does Open Mercato cost
Implementation starts from EUR 3,500 for Starter, through EUR 8,000 (Business) to custom Enterprise pricing. See our pricing page for details.
See full pricingOpen Mercato vs the competition
How Open Mercato compares to the most popular CRM and ERP systems.
| Criteria | Open Mercato | Salesforce | HubSpot | SAP |
|---|---|---|---|---|
| Licence | Open source, free | From €75/user/mo | From €0 (limited) | From €50,000/year |
| Vendor lock-in | None | High | Medium | Very high |
| Implementation time | 4-14 weeks | 3-12 months | 2-8 weeks | 6-18 months |
| Customisation | Unlimited (source code) | Apex/Flow (limited) | API + marketplace | ABAP (complex) |
| Source code access | Full | None | None | Limited |
| Hosting | Any (cloud/on-premise) | Salesforce Cloud only | HubSpot Cloud only | Cloud/on-premise |
| TCO (3 years, 20 users) | ~€12-25k | ~€50-85k | ~€20-45k | ~€120k+ |
Frequently asked questions about Open Mercato
Is Open Mercato free?
How is Open Mercato different from Salesforce?
Is Open Mercato suitable for small businesses?
What is the history of Open Mercato?
Can I host Open Mercato on my own server?
What tech stack does Open Mercato use?
How often is Open Mercato updated?
What do companies say about Open Mercato?
Where can I find the source code and documentation?
Can I try Open Mercato before implementing?
Want to see Open Mercato in action?
Book a 30-minute call. We'll show you a demo, answer your questions and tell you whether the platform fits your business. No strings attached.
Book a free call