Best Open Source Vendor Management Software for Small Business (2026): 6 Tools Compared

Vendor management means keeping supplier details, prices, performance and contracts in one place. Small businesses mostly need contacts, price history and a record of who delivered on time. These open source tools offer supplier management inside a bigger system.

We write for small businesses, freelancers and growing teams, not large enterprises. Every tool below was checked on GitHub for license, archive status and recent activity, and prices are never quoted because they change. Our picks are based on each project's documentation and repository data, not on hands-on benchmarks, so always try a tool with sample data first. This is general information, not tax, legal or accounting advice.

Top picks at a glance

• ERPNext: Suppliers with performance tracking.
• Odoo Community: Vendors in Purchase and Contacts.
• Dolibarr ERP CRM: Third parties and suppliers.

What to look for in vendor management software for a small business

• Supplier records. Contacts, payment terms, tax numbers and documents in one profile.
• Price history. Compare what each supplier charged over time.
• Performance notes. Record late deliveries and quality issues.
• Contract dates. Reminders for renewals avoid surprise price changes.
• Project health and license. Choose a project that is not archived, has recent releases and a real open source license. Check the LICENSE file, not just the website.

Comparison table: best open source vendor management software

Stars and update dates are a snapshot from 16 October 2026 and change daily. They show activity, not quality.

The 6 best open source vendor management tools, reviewed

1. ERPNext

Best for: Suppliers with performance tracking
License: GPL-3.0 · Stack: Python (Frappe), MariaDB · GitHub: 40,232 stars, repo updated Oct 2026

ERPNext manages suppliers, price lists and supplier scorecards within purchasing and accounting.

Read our full guide to ERPNext · Source on GitHub · Official website

2. Odoo Community

Best for: Vendors in Purchase and Contacts
License: LGPL-3.0 (Community edition) · Stack: Python, PostgreSQL · GitHub: 55,072 stars, repo updated Oct 2026

Odoo Community stores vendors and their prices as part of its Purchase app.

Read our full guide to Odoo Community · Source on GitHub · Official website

3. Dolibarr ERP CRM

Best for: Third parties and suppliers
License: GPL-3.0 · Stack: PHP, MySQL/MariaDB/PostgreSQL · GitHub: 7,732 stars, repo updated Oct 2026

Dolibarr treats suppliers as third parties linked to orders, invoices and contacts.

Read our full guide to Dolibarr ERP CRM · Source on GitHub · Official website

4. InvenTree

Best for: Suppliers and supplier parts
License: MIT · Stack: Python (Django), React · GitHub: 7,717 stars, repo updated Oct 2026

InvenTree tracks suppliers and the parts they provide, useful for hardware businesses.

Source on GitHub · Official website

5. LedgerSMB

Best for: Vendor accounts in accounting
License: GPL-2.0 · Stack: Perl, PostgreSQL · GitHub: 570 stars, repo updated Oct 2026

LedgerSMB keeps vendor records linked to payables.

Source on GitHub · Official website

6. GLPI

Best for: IT suppliers and contracts
License: GPL-3.0 · Stack: PHP · GitHub: 6,463 stars, repo updated Oct 2026

GLPI is an IT management tool that also tracks suppliers and contracts for IT assets.

Source on GitHub · Official website

Open source vs paid vendor management software

Paid cloud products usually win on polish, mobile apps, automatic bank connections and support. Open source wins on running cost as you grow, data ownership and the freedom to customize. The real cost of open source is hosting, backups, updates and your own time, so count those honestly. Several of these projects also sell hosting or support if you would rather not run a server yourself.

How to choose the best vendor management software

• You want supplier scoring and purchasing: ERPNext.
• You need simple supplier contacts and orders: Dolibarr.
• You manage IT suppliers: GLPI.
• You build hardware: InvenTree.

Mistakes to avoid

Vendor tools store contact and bank details, so restrict access and back up regularly. A well-kept supplier list in an ERP often beats a separate vendor tool.

Where to host it

All of these tools can be self-hosted. A small VPS or a web hosting plan from a provider such as Hostinger is enough to get started with most of them. Check each project's requirements first, and read our security and backup checklist before you add real data.

Related comparisons

• Best Open Source Purchase Order Software for Small Business
• Best Open Source Accounts Payable Software (2026)
• Best Open Source Spend Management Software (2026)
• Best Open Source ERP Software for Small Business

All open source business software comparisons

• Accounting
• Bookkeeping
• Billing
• Invoicing
• Payroll
• Inventory Management
• Warehouse Management
• Expense Tracking
• Spend Management
• Accounts Payable
• Accounts Receivable
• Cash Flow Management
• Bank Reconciliation
• Purchase Order
• Vendor Management
• Point of Sale (POS)
• Time Tracking
• Quotation & Estimates
• Revenue Recognition
• Financial Reporting
• Asset Management
• Lead Management
• Sales Pipeline
• ERP

Also see our directory of 50 open source CRMs.