FluxBilling · vs · Blesta

The Blesta alternative with DCIM in the schema.

Blesta shipped in 2010 as a developer-leaning alternative to the dominant PHP billing tools of the time. It earned a reputation for clean code, a sane module API, and a smaller, more focused community. For a decade and a half it has done that one job — bill hosting customers — reliably.

FluxBilling is the Blesta alternative that started with a different question. If you are building a billing platform in 2026, what does the stack look like? React on the frontend. PostgreSQL 16. Bun. K3s for tenant isolation. A visual plugin builder so payments, hypervisors, registrars, and monitoring share one shape. DCIM in the same database as the invoices, not a separate product you sync to.

Same job. Different decade. Different decisions.

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At a glance

The two platforms, on one page.

Quick-glance facts. Verify against vendor documentation; this is what we ship.

Spec

FluxBilling

Blesta

Shipped: 2025; 2010
Language: JavaScript; PHP
Stack: React 18 SPA, Bun, PostgreSQL 16; minPHP framework, MySQL
Plugin model: Visual plugin builder + JSON manifest format; PHP modules, separate APIs per domain
Pricing: Flat plans from €4.95/mo, all gateways included; Owned + monthly licenses, gateway-by-gateway
Audience: Hosting providers running modern infrastructure; Developer-friendly, smaller hosting providers
Tenant model: Built for K3s-era multi-tenancy; Smaller install base than WHMCS

Based on publicly available Blesta documentation and pricing, captured 2026-05-11. Verify at blesta.com.

Why it matters

Four architectural angles where FluxBilling is meaningfully different.

Both platforms invoice, dun, and ticket. Where they part ways is below the line.

Tenant isolation: Every FluxBilling instance runs as a K3s pod with its own PostgreSQL database, namespace, and AES-256-GCM-encrypted settings. Blesta is a single-tenant install model. If you operate multiple brands or a marketplace, FluxBilling is closer to your topology.
Unified plugin model: Blesta has separate module APIs for gateways, server modules, registrar modules. FluxBilling collapses payments, infrastructure, registrars, and monitoring into one visual plugin model with a shared JSON manifest format and shared lifecycle hooks — less surface area to learn, less code to maintain.
Integrated DCIM: Racks, U-positions, IPAM, VLANs, power monitoring, and asset tracking are first-class tables in the FluxBilling schema, joined directly to services and invoices. Blesta is billing-only. If you sell colocation, dedicated, or run physical infrastructure, this collapses two products into one.
Modern frontend: Blesta is server-rendered PHP. Every action is a round-trip and a re-render. FluxBilling is a React 18 SPA backed by queued workers: optimistic UI, sub-200ms median time-to-feedback, no full-page reloads. Same workflows, the difference is how it feels to operate.

Plugin model

One plugin shape, every domain.

Blesta has separate module APIs — one for gateways, one for server modules, one for registrars. Each has its own conventions and lifecycle. FluxBilling collapses that into a single visual plugin model: same registration, same hooks, same JSON manifest. Payments, hypervisors, registrars, monitoring, all shaped the same way.

Database-stored.Plugins are stored as records in the tenant database, not files on disk. No core fork, no rebuild.
Visual builder.Compose flows on a node-based canvas; non-engineers can ship integrations.
JSON manifest.Each plugin is a manifest of nodes and config — portable across tenants.

Plugin builder

Side by side

Feature-level differences.

Frontend, backend, plugin model, infrastructure, and security defaults — with footnoted citations on competitor cells.

Feature	FluxBilling	Blesta
Frontend	React 18 SPA	Server-rendered PHP
Backend runtime	Bun + Express	PHP-FPM
Database	PostgreSQL 16	MySQL
Tenant model	K3s pod + isolated DB per tenant	Single-tenant install
Plugin language	JSON visual flows	PHP
Plugin model	Visual builder + JSON manifest	Separate APIs per module type^[1]
Visual plugin builder	✓	—
Integrated DCIM	✓	—^[2]
IPAM + VLAN	✓	—^[2]
Bare-metal automation	IPMI / Redfish, native	— third-party^[2]
Two-factor auth	Email-code 2FA	Email-code 2FA^[3]
Encryption at rest	AES-256-GCM (settings, credentials)	Optional^[3]
Real-time portal	✓	— page reloads^[1]
Proforma invoices	✓	—^[2]

[1] Source: blesta.com/developers module documentation (captured 2026-05-11).
[2] Source: blesta.com feature documentation; not advertised as a built-in capability (captured 2026-05-11).
[3] Source: blesta.com/security and account-settings documentation (captured 2026-05-11).

DCIM in the same schema

Racks join to invoices.

Rack management, U-positions, IPAM, VLANs, power monitoring, and asset tracking are first-class tables. The device the customer is paying for is one row away from the invoice line that pays for it. Blesta is billing-only.

Native
Racks + U: Native
IPAM + VLAN: Native
Power: None
Sync jobs

DCIM features

dcim · rack

Migration path

A scoped engagement, not an in-app tool.

There is no in-app Blesta importer today. Migration is a services engagement: our team reviews your schema, writes a one-off mapping for your install, and runs a test import on a sandbox before cut-over. Blesta’s schema is well-documented, so the work is bounded. Migration support is included with annual plans.

01.
Send your install size and module list
Client count, service count, gateways, server modules. The team replies with scope.
02.
Schema review + test import
We pull a schema dump, write the mapping, run a test import on a sandbox.
03.
Production cutover
Blesta read-only on the side, FluxBilling live, DNS swap when validated.

FAQ

Common questions, direct answers.

01.How is FluxBilling different from Blesta?

Blesta is a server-rendered PHP billing tool with a modular PHP plugin system. FluxBilling is a React 18 single-page application backed by Bun and PostgreSQL 16, with a visual plugin builder, integrated DCIM, and per-tenant K3s isolation. Both bill hosting customers; the stack and operating model differ.

02.Can I migrate from Blesta to FluxBilling?

There is no in-app Blesta importer today. Migration is a scoped engagement with our team — we review your schema, write a one-off mapping for your install, and run a test import on a sandbox before cut-over. Open a migration ticket with your install size and module list to scope the work.

03.Does FluxBilling support the same payment gateways as Blesta?

FluxBilling ships with Stripe, PayPal, CoinGate, Mollie, and others — all included in every plan, no per-gateway license. Blesta-only modules (regional gateways, niche processors) can be rebuilt as visual plugins; the team helps with that.

04.What server provisioning does FluxBilling cover?

Proxmox, Virtualizor, SolusVM 2, Pterodactyl for game servers, and IPMI / Redfish for bare metal. cPanel, Plesk, and DirectAdmin integrations are on the visual plugin roadmap.

05.Is Blesta still a reasonable choice in 2026?

For small operators who do not need DCIM, prefer PHP, and want a stable, predictable billing tool with a slower release cadence — yes. FluxBilling targets operators who run modern infrastructure (Proxmox, K3s, IPMI bare metal) and want billing, DCIM, and provisioning in one schema.

06.How does pricing compare?

FluxBilling plans start at €4.95/mo and include all payment gateways, integrated DCIM, and the visual plugin builder. Blesta licenses are owned or monthly per install, with gateways and modules priced separately. The comparable Blesta + DCIM + gateways stack runs across multiple vendors.

Stay on Blesta if …

Your team writes PHP, your operation does not need DCIM, and you prefer a slower, more predictable release cadence. For some operators that is a feature, not a bug.

FluxBilling moves faster, ships more, and has a wider scope — that is a tradeoff. If your stack runs on PHP modules and your customers do not need a real-time portal, you may not benefit from the change.

Plan a migration

Send us your Blesta install. We scope the engagement.

No sales call. Open a ticket with your install size, payment gateways, and server modules. The team responds within one business day with a migration plan, the mapping scope, and any visual plugin work required to match your modules.

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Blesta is a trademark of Phillips Data, Inc. This page is not affiliated with, endorsed by, or sponsored by Phillips Data, Inc. Comparison data is based on publicly available documentation and pricing as of May 2026 and may not reflect the most current state. Verify all details with the respective vendors before purchasing.