CRM and sales decision
Bigin
A small team or single competent developer can implement a functional, self-hosted mini-CRM that covers core pipelines and contact management, but matching Bigin's hosted scale, integrations, telephony, AI agents, and compliance guarantees would be costly and slow to reproduce.
Visit website↗Open-source builds that already do this
Every project below is open source and already does this job today. Fork one, self-host it, or take the parts you need - the build prompt further down assumes an empty file, and this is the shortcut past that. Licences differ; check the one on each card before you ship. All Bigin alternatives, with the arithmetic →
What a replacement has to do
- A minimal CRM that stores contacts, tracks deals in a single visual pipeline, logs activities, and imports CSV leads; includes basic search, simple automation triggers, and email sending via SMTP/SendGrid.
What it still won’t have
- Built-in telephony (in-app calling, call recordings, call routing)
- Official WhatsApp integration and other 1st‑party channel integrations
- Native mobile apps and polished multi-platform UX
- Enterprise certifications and compliance guarantees (ISO/GDPR/SOC2/HIPAA enforcement)
- Zoho ecosystem integrations, onboarding support, and hosted scale
What remains hard
- Brand trust
150+ Million users run their business on Zoho’s platform.
First-year cost
Keep paying
Paying is—cheaper in year one.
On cash alone, building overtakes the subscription at 3 seats.
Money you would actually spend
Time you would spend
—
What you would spend
What we assumed
The verdict above measures whether you could build it. This one is only about money.
Runnable build prompt
Build a minimal self-hosted CRM in Node.js (Express) + React, Postgres for storage, and Redis for background jobs. Implement: authentication (email/password, roles), Contacts and Deals with a visual pipeline UI, CSV import with field mapping and dedupe, basic search over contacts, email send/receive via SendGrid+IMAP (associate incoming messages with contacts), and a basic workflow engine (triggers: new contact, stage change; actions: send email, create task). Out of scope: built-in telephony, WhatsApp API, mobile apps, and enterprise compliance certification. Include error handling, background job retries, input validation, and unit + integration tests; provide Docker compose for local dev and a production deployment guide (managed Postgres, app host, SSL).
How we checked
How the score was reached
- Partly verdict base52
- An open-source build was found+5
- 5 cited sources+3
- Price verified on pricing page+3
- 3/3 assessment runs agreed+4
- Hard moats found in the evidence-3
- Evidence score64
The base comes from the verdict. Everything under it is a check that either happened or did not, and each one is a fact frozen in this record rather than a judgement made at render time - so the same evidence always produces the same number.
How scoring works →Cited sources · 5
Every page the run actually retrieved.
- official productBigin product page
- official pricingBigin pricing
- official docsBigin features
- open sourcekrayin/laravel-crm
- open sourceDolibarr/dolibarr
Integrity checks
What held up, and what did not.
