CRM

Migrate your Fat Free CRM data

Self-hosted open-source Ruby on Rails CRM with no licensing cost. Suited for technical teams who want full data ownership but are comfortable managing their own infrastructure and upgrades.

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In its favor

Why people choose Fat Free CRM

The signal that keeps Fat Free CRM on the shortlist. Sourced from G2, Capterra, and customer scoping calls.

Free open-source software with no per-seat or per-month licensing cost, making it attractive to bootstrapped teams or individual consultants who need basic CRM functionality.

Fully customizable Ruby on Rails codebase lets technical teams modify models, views, and controllers without being locked into a vendor's feature roadmap.

Self-hosted deployment gives complete data ownership and control over where customer data resides, important for teams with strict data residency or privacy requirements.

Active plugin ecosystem provides extensions for webhooks, record merging, and time tracking that teams can bolt on as needed.

Simple enough to set up on Heroku or a VPS without dedicated DevOps staff, lowering the barrier to entry for small teams.

The user interface feels dated compared to modern SaaS CRMs, and G2 reviewers consistently rate the UX as needing significant improvement.

Community development has slowed — Bitrix24's comparison page explicitly notes it is unclear whether Fat Free CRM is still actively maintained, raising long-term support concerns.

No native public API means third-party integrations require direct database access or custom Rails code, complicating connections to email, calendars, or other tools.

Lacks the reporting depth, automation builder, and sales intelligence features that teams outgrow as they scale beyond basic contact and opportunity tracking.

Hosting, maintenance, security patching, and upgrades fall entirely on the customer, creating hidden operational overhead that grows over time.

Reasons to switch

Why people leave Fat Free CRM

The recurring reasons buyers give for replacing Fat Free CRM. Presented as facts, not knocks.

Platform scorecard

Strengths, weaknesses, and where Fat Free CRM fits

Grades across six dimensions, plus a SWOT-style view of where the platform shines and where it falls short.

SWOT — strengths, weaknesses, and use-case fit

Strengths

Zero licensing cost — fully open source under MIT license with no per-user or subscription fees.Complete source code access allows deep customisation of data models, views, and business logic without vendor lock-in.Lightweight Ruby on Rails stack runs on commodity hosting (VPS, Heroku) with standard relational databases.Active community and plugin architecture provide extension points for webhooks, time tracking, and record merging.Self-hosted model ensures full data ownership and no third-party data retention concerns.

Weaknesses

No native public API — integrations require direct database queries or custom Rails development, limiting third-party tool connectivity.Dated user interface consistently cited in reviews as a friction point compared to modern SaaS CRM experiences.Slowing development activity raises concerns about security patches, Rails compatibility updates, and long-term viability.Operational burden of self-hosting (server management, backups, upgrades, security) falls entirely on the customer.Limited reporting, automation, and sales intelligence features compared to commercial CRM platforms.

Where it works

Small teams of 1–10 people who need basic CRM functionality without recurring subscription costs and have a budget that cannot accommodate per-seat SaaS pricing.Technical teams with Ruby on Rails expertise who want full access to source code for deep customisation of models, views, and business logic.Organisations subject to strict data residency or privacy requirements that demand complete ownership of customer data without third-party retention.Bootstrap startups or solo consultants who need contact, lead, and opportunity tracking on a shared server or VPS without dedicated DevOps support.Teams that can manage their own server maintenance, security patching, and Rails version upgrades as an acceptable operational trade-off.

Where it struggles

Growing teams of 10 or more users who begin to outgrow basic contact and opportunity tracking and need built-in automation, advanced reporting, or sales intelligence.Non-technical teams without Ruby on Rails experience who cannot manage direct database connections, plugin installation, or Rails application upgrades themselves.Organisations that rely on third-party integrations with email clients, calendar tools, or marketing platforms, which require a native API that Fat Free CRM does not provide.Teams that need a modern user interface and contemporary UX patterns, as G2 reviewers consistently rate the UI as dated and requiring improvement.Mid-sized or enterprise organisations requiring ongoing active development, security patches, and vendor support, given the uncertainty around continued maintenance of the platform.

Pricing tiers

Fat Free CRM pricing overview

Fat Free CRM is entirely free to use. There are no commercial pricing tiers, subscriptions, or per-user fees. All costs are operational: the server, database, backups, and any developer time spent on customisation or maintenance.

Open Source

Tier 1 of 1

Free (self-hosted)

What's included

MIT-licensed open source software, no purchase requiredSelf-hosted on your own server, VPS, or cloud instanceDatabase options: MySQL, PostgreSQL, SQLiteRequires Ruby 3.1+, ImageMagick (optional for avatars)Community support via GitHub issues and wiki

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Pricing is informational. FlitStack AI does not bill on Fat Free CRM's schedule — see our quote-based pricing →

What gets migrated

Fat Free CRM object support

Object-by-object support for Fat Free CRM migrations. Per-pair details surface during scoping.

Accounts

Fully supported

Accounts map 1:1 to Companies/Accounts in most destination CRMs. Fat Free CRM stores name, website, phone, billing address, and an assigned user/owner. We extract from the accounts table and preserve the owner assignment via user ID cross-reference.

Contacts

Fully supported

Contacts store name, email, phone, title, and a link to an Account. The contact_accounts join table preserves the many-to-one relationship. We map Contacts directly to Contacts in the destination and rebuild the account linkage by name or external ID.

Leads

Fully supported

Leads are a distinct pre-conversion object with status, source, and rating fields. We extract the full lead record including assigned user and tag memberships. On import, Leads map to Leads or get merged into Contacts depending on destination schema.

Opportunities

Fully supported

Opportunities link to a Contact and an Account, track stage, amount, probability, and close date. We preserve the opportunity_contact join table to ensure each deal is associated with the correct contact record in the destination.

Tasks

Fully supported

Tasks belong to a user and optionally to an Opportunity or Contact. Standard fields include title, body, due date, category, and completion status. We import open and completed tasks and recreate the parent linkage using destination foreign keys.

Campaigns

Mapping required

Campaigns track name, status, budget, and target metrics. Tag memberships link contacts to campaigns. We import campaign records and rebuild contact-campaign associations from the tag and subscription tables, which requires value-mapping in the destination.

Tags

Mapping required

Fat Free CRM uses a global tagging system (acts_as_taggable) across Contacts, Accounts, Opportunities, and Leads. Tags are stored as string tokens in a separate table. We preserve the full tag set per record but note that destination CRMs may handle tag namespaces differently.

Users and Teams

Mapping required

Users represent your internal team members with login credentials, role (admin, user), and team membership. Because the destination CRM will have its own user directory, we extract the user roster and map them to destination users by email, flagging any unmapped owners as needing manual reassignment.

Groups

Mapping required

Groups in Fat Free CRM are organisational units used for access control and data sharing. The concept does not exist as a first-class object in most SaaS CRMs. We map group membership to team structures or static groups in the destination where possible.

Custom Fields

Mapping required

Fat Free CRM supports custom fields on Accounts, Contacts, Leads, and Opportunities via a serialized field or extension table. We extract custom field definitions and values, then map them to custom properties in the destination, noting that field type (text, number, date, dropdown) must be verified.

Attachments

Not in this platform

File attachments uploaded to Contacts, Accounts, or Opportunities are stored on the local filesystem or cloud storage bucket configured by the host. We cannot reliably extract binary attachments without direct server access. We flag attachment records so the customer can decide whether to copy files manually post-migration.

Gotchas

What to watch for in Fat Free CRM migrations

Issues we've hit on past Fat Free CRM migrations, tagged by severity. FlitStack AI handles every one — surfacing them up front because buyer engineering teams want to know.

High

No public REST API forces direct database extraction

Medium

Plugin-extended schema may alter core tables

Medium

Attachment files live on the host filesystem

Low

Users and groups must be manually remapped in the destination

How a Fat Free CRM migration works

Four steps, Fat Free CRM-specific

Connect

None (no public API — migrations connect directly to the underlying relational database with read-only credentials) into Fat Free CRM. Scopes limited to read-only on the data we move.

Map

We translate Fat Free CRM-specific structures (custom fields, objects, value lists) to the destination's model.

Sample

Test with a 50–200 record subset to validate Fat Free CRM quirks before production.

Migrate

Full migration with Fat Free CRM rate-limit handling. Rollback available throughout.

FAQ

Fat Free CRM migration FAQ

Answers to the questions buyers ask most during Fat Free CRM migration scoping. Not seeing yours? Book a call.

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Most Fat Free CRM migrations under 1M records finish in 48–72 hours end-to-end. Larger orgs with custom objects or buyer-side security review typically take 5–7 days.

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