# SimplyPrint vs Fluidd

## About Fluidd

- **Website:** [Fluidd](https://docs.fluidd.xyz/)

## Overview

Fluidd is one of the two web interfaces most Klipper owners reach for (Mainsail is the other), and it's genuinely excellent: a fast, lightweight, fully local dashboard for a Klipper printer, built on the Moonraker API. If OctoPrint is the classic interface for Marlin machines, Fluidd is one of its Klipper counterparts, and a very well-made one.**
SimplyPrint isn't a rival to that, and we don't pretend to be. We connect to Klipper printers through Moonraker's built-in [simplyprint] component, with no plugin to install, and we run happily alongside** Fluidd (Moonraker allows several clients at once), so your Fluidd UI keeps working exactly as it does now. The honest difference is simple: Fluidd is built to run **one** Klipper printer beautifully. When one printer becomes a fleet, a classroom or a farm, that's the job SimplyPrint was built for.

## Pros of Fluidd

Fluidd has real, lasting strengths, and they're worth being honest about:**

- Free & open-source:** GPLv3, self-hosted on your own hardware - you own the whole stack, no subscription and no cloud required.
- **A lightweight, polished Klipper UI:** fast and responsive, with config editing, G-code preview, bed-mesh visualisation, macros and themes.
- **Easy install:** set up with KIAUH (the Klipper Installation And Update Helper), which installs Klipper, Moonraker and Fluidd together.
- **Print history & Spoolman:** shows per-printer print history and statistics (via Moonraker) and integrates Spoolman for filament-spool inventory.
- **Installable PWA & big community:** runs as an add-to-home-screen web app, with a large, active Klipper community behind it.

## Cons of Fluidd

Where Fluidd runs into a ceiling once you're past a single printer:**

- One printer at a time:** you add and switch between printers (the list lives in your browser's local storage), with no unified fleet dashboard and no cross-printer queue, auto-assignment or automation.
- **Klipper only:** needs Klipper firmware + Moonraker; it doesn't run generic Marlin-over-serial printers or Bambu Lab machines.
- **No built-in remote access:** local-only by design, and the guidance is not to expose it to the internet, so remote use means a VPN, relay or reverse proxy.
- **No roles or SSO:** it relies on Moonraker's optional login, which has no permission groups, roles, SSO or schools/education features.
- **No plugin system, slicer or AI:** you extend it with Klipper macros and themes (no OctoPrint-style plugins), slice in a desktop slicer, and AI failure detection comes from a separate service like Obico.

## Feature Comparison: SimplyPrint vs Fluidd

### General

| Feature | Fluidd | SimplyPrint |
|---------|------|-------------|
| Has free plan | ✓ | ✓ |
| Max cost | Free (self-hosted) | Free, or from $4/printer/mo |
| Free cloud storage | ✗ | 1GB |
| Usage based cost | ✗ | ✗ |
| Unlimited printing | ✓ | ✓ |
| Supports all printers | Klipper printers only | ✓ |

### Features

| Feature | Fluidd | SimplyPrint |
|---------|------|-------------|
| Remote access | LAN only (VPN/relay to go remote) | ✓ |
| Filament management | Via Spoolman | ✓ |
| Knows your printer | ✗ | ✓ |
| Cloud files | ✗ | ✓ |
| Print queue | Per printer (Moonraker) | ✓ |
| Livestream | LAN webcam | ✓ |
| Gcode analysis | ✓ | ✓ |
| A.I failure detection | ✗ | ✓ |
| AutoPrint / continuous printing | ✗ | ✓ |
| Custom fields | ✗ | ✓ |
| Staggered Start (for power draw) | ✗ | ✓ |
| Print job history | ✓ | ✓ |
| Print remotely | ✗ | ✓ |
| Built-in slicer | ✗ | ✓ |
| Multi-printer friendly | Printer switcher | ✓ |
| Multi-print | ✗ | ✓ |
| Multi-stream | ✗ | ✓ |
| Statistics | Per printer | ✓ |
| API | ✓ | ✓ |
| Slicer smart-rotation | ✗ | ✓ |
| Smart filament change | ✗ | ✓ |
| Bed level helper | ✗ | ✓ |

### Organizations

| Feature | Fluidd | SimplyPrint |
|---------|------|-------------|
| Multiple users | Via Moonraker login | ✓ |
| User groups / ranks | ✗ | ✓ |
| User permissions | ✗ | ✓ |
| School plan | ✗ | ✓ |
| Shared files & folders | ✗ | ✓ |
| Shared slicer profiles | ✗ | ✓ |
| Hub | ✗ | ✓ |
| Custom domains | ✗ | ✓ |
| SSO (single sign-on) | ✗ | ✓ |

### Notifications

| Feature | Fluidd | SimplyPrint |
|---------|------|-------------|
| Email notifications | Via Moonraker | ✓ |
| Push (mobile / app) notifications | Via apps | ✓ |
| SMS / text message notifications | ✗ | ✓ |

### Apps

| Feature | Fluidd | SimplyPrint |
|---------|------|-------------|
| Android app | Mobileraker (3rd-party) | ✓ |
| iOS app | Mobileraker (3rd-party) | ✓ |
| "PWA" (installable web-application) | ✓ | ✓ |

### Security & Privacy

| Feature | Fluidd | SimplyPrint |
|---------|------|-------------|
| Account 2-factor authentication | ✗ | ✓ |
| EU servers | Self-hosted (local) | ✓ |
| Privacy-minded analytics & data-gathering | ✗ | ✓ |

### Support

| Feature | Fluidd | SimplyPrint |
|---------|------|-------------|
| Email support | ✗ | ✓ |
| Live-chat support | ✗ | ✓ |
| Phone support | ✗ | ✓ |

### Firmware & Gateway Support

| Feature | Fluidd | SimplyPrint |
|---------|------|-------------|
| OctoPrint install | ✗ | ✓ |
| Native Moonraker support | ✓ | ✓ |
| Mainsail install | ✗ | ✓ |
| Fluidd install | ✓ | ✓ |
| Klipper support | ✓ | ✓ |
| Duet3D integration | ✗ | ✓ |
| Direct Prusa support (MK4, XL and up / new main boards) | ✗ | ✓ |
| Direct Bambu Lab printer integration | ✗ | ✓ |
| Support for custom integrations | ✗ | ✓ |

### Enterprise & Partners

| Feature | Fluidd | SimplyPrint |
|---------|------|-------------|
| OEM | ✗ | ✓ |
| Partner program (reseller / distributor) | ✗ | ✓ |
| Affiliate program | ✗ | ✓ |