Guides on choosing, comparing, licensing and self-hosting free CRM software.
In-depth comparisons for small businesses: accounting, invoicing, payroll, inventory, POS, ERP and more.
Compare the best open source accounting software for small business in 2026: 8 free tools with license, stack, GitHub activity, pros and limits.
Compare the best open source bookkeeping software for small business in 2026: 6 free tools with license, stack, GitHub activity, pros and limits.
Compare the best open source billing software for small business in 2026: 6 free tools with license, stack, GitHub activity, pros and limits.
Compare the best open source invoicing software for small business in 2026: 7 free tools with license, stack, GitHub activity, pros and limits.
Compare the best open source payroll software for small business in 2026: 4 free tools with license, stack, GitHub activity, pros and limits.
Compare the best open source inventory management software for small business in 2026: 7 free tools with license, stack, GitHub activity, pros and limits.
Compare the best open source warehouse management software for small business in 2026: 6 free tools with license, stack, GitHub activity, pros and limits.
Compare the best open source expense tracking software for small business in 2026: 6 free tools with license, stack, GitHub activity, pros and limits.
Compare the best open source spend management software for small business in 2026: 5 free tools with license, stack, GitHub activity, pros and limits.
Compare the best open source accounts payable software for small business in 2026: 6 free tools with license, stack, GitHub activity, pros and limits.
Compare the best open source accounts receivable software for small business in 2026: 6 free tools with license, stack, GitHub activity, pros and limits.
Compare the best open source cash flow management software for small business in 2026: 5 free tools with license, stack, GitHub activity, pros and limits.
Compare the best open source bank reconciliation software for small business in 2026: 5 free tools with license, stack, GitHub activity, pros and limits.
Compare the best open source purchase order software for small business in 2026: 6 free tools with license, stack, GitHub activity, pros and limits.
Compare the best open source vendor management software for small business in 2026: 6 free tools with license, stack, GitHub activity, pros and limits.
Compare the best open source point of sale software for small business in 2026: 7 free tools with license, stack, GitHub activity, pros and limits.
Compare the best open source time tracking software for small business in 2026: 6 free tools with license, stack, GitHub activity, pros and limits.
Compare the best open source quotation and estimate software for small business in 2026: 6 free tools with license, stack, GitHub activity, pros and limits.
Compare the best open source revenue recognition software for small business in 2026: 3 free tools with license, stack, GitHub activity, pros and limits.
Compare the best open source financial reporting software for small business in 2026: 7 free tools with license, stack, GitHub activity, pros and limits.
Compare the best open source asset management software for small business in 2026: 5 free tools with license, stack, GitHub activity, pros and limits.
Compare the best open source lead management software for small business in 2026: 6 free tools with license, stack, GitHub activity, pros and limits.
Compare the best open source sales pipeline software for small business in 2026: 6 free tools with license, stack, GitHub activity, pros and limits.
Compare the best open source ERP software for small business in 2026: 8 free tools with license, stack, GitHub activity, pros and limits.
How to choose, license, secure and self-host a CRM.
A practical checklist for picking the right open source CRM: license, project health, tech stack, features, security, total cost and how to run a proper trial.
Self-hosting a CRM removes per-seat fees but adds hosting, backups and admin work. Here is a simple way to compare the true cost and decide.
Not every "open source" CRM is truly open source. Understand MIT, GPL, AGPL, LGPL, MPL-style, open-core and source-available licenses before you choose.
A practical checklist to secure a self-hosted CRM: HTTPS, updates, backups, access control, secrets, network exposure and privacy compliance.
The most-starred open source CRM and CRM-ERP projects on GitHub, with license and last update, verified October 2026.
Find the right free CRM for your situation: general sales, ERP + CRM, developer-first, nonprofits, marketing, personal, AI and low-code.
Our methodology: public source, not archived, real license file, recent activity. Plus the projects we removed or declined and why.
