Over a million active instances make OctoPrint the standard web interface for consumer 3D printers - Gina Häußge's Python application, the center of the printing world since 2012. It talks to your printer over USB serial and turns every browser into a control panel: upload, organize, and start G-code prints; watch hotend and bed temperature graphs in real time; drive the print head manually; adjust feed rate, flow, and fan speed mid-print; and hit an emergency stop if things go wrong. The G-code visualizer renders the current layer in sync with the job, and a connected webcam adds a live feed plus automatic timelapse recording of every build. What keeps OctoPrint ahead is its plugin ecosystem - 300+ community plugins installable from the built-in manager. Highlights include Obico's AI spaghetti detection that pauses failed prints automatically, OctoEverywhere for tunnel-based remote access, Bed Level Visualizer's 3D mesh of your bed surface, PrintTimeGenius for accurate time estimates, Exclude Region to abandon one failed object mid-print while others continue, and Firmware Updater to flash Marlin or Klipper without SD-card shuffling. Event hooks fire notifications when prints finish or fail, and a full REST API supports slicer integration and custom automation. AGPL-licensed.

Command and automate your entire fleet of 3D printers without relying on proprietary cloud services using Bambuddy, a self-hosted management hub that delivers local network control, print scheduling, and job archiving for Bambu Lab hardware. Print shop operators can route slicing output directly from Bambu Studio or Orca Slicer through virtual printer proxies that emulate physical machines while automatically cataloging print files in a searchable 3D repository. The automated dispatch engine assigns queued gcode files to available printers based on required nozzle temperatures, build plate dimensions, and matched multi-color filament slots. Users can inspect live camera streams across multiple printing beds simultaneously, verify empty build plates before dispatching new jobs, and generate stabilized timelapse videos with custom music. Integrated smart plug connectors automatically cut power to idle machines when print cycles finish and trigger push notifications to Discord or mobile devices if thermal anomalies or mechanical pauses occur. Farm managers can schedule maintenance alerts based on cumulative motor runtime, track spool inventory levels across storage locations, and synchronize printing configurations across duplicate hardware setups. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. GNU AGPL v3.0 licensed.

Controlling Klipper-powered 3D printers from a single browser workspace, Mainsail delivers a responsive web interface for monitoring print jobs, tuning kinematics, and managing multi-printer farms in real time. Makers and print farm operators monitor extruder and heated bed temperatures, fan speeds, and toolhead coordinates live on customizable dashboard layouts. An integrated file manager and syntax-highlighted editor let you upload G-Code directly from your slicer, organize print job queues, and modify Klipper configuration files (`printer.cfg`) without opening an SSH terminal. Interactive 3D visualizations render bed mesh heightmaps for first-layer leveling diagnostics alongside a real-time 3D G-Code toolpath viewer that tracks layer progress. Multi-webcam streaming, automated timelapse recording through `moonraker-timelapse`, Spoolman filament spool tracking, and mid-print object exclusion help salvage multi-part plates when a single model detaches. You can also organize parameterized Klipper macros, switch smart relays or Tasmota power plugs, and audit historical job success rates and filament consumption. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. GPL-3.0 licensed.

The bracket you printed last spring sits in some folder, on some drive, under a filename you no longer remember; GyroidVault is the searchable library that ends the hunt, where every model can be inspected in 3D, tracked through its prints, and sent to a printer without touching a slicer queue. Point it at your existing folders on a NAS or server and it indexes STL, 3MF, STEP, OBJ, G-code, binary BGCODE, and even Fusion 360 files non-destructively, generating thumbnails and 2x2 collages while a duplicate finder flags identical copies by SHA-256 hash. Opening a model launches Studio 2.0: orbit the mesh, jump between isometric, top, front, and side cameras, switch between solid, wireframe, and X-ray shading, try filament colours live, arrange multi-part assemblies on one build plate, and snapshot your favourite angle as the cover. Sliced files give up their secrets too, with layer-by-layer toolpath previews plus infill, temperatures, filament weight, and estimated cost extracted automatically. From the same page you can fire G-code straight to a Moonraker or Klipper printer, open the file in OrcaSlicer, Bambu Studio, PrusaSlicer, Cura, or Creality Print, log each print with its material and outcome, and share a model through an expiring public link. Collections, version histories, custom metadata fields, and role-based accounts keep a growing print farm library tidy for everyone who uses it. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.

Authors delete listings, and the 3D models go with them, so Thingport stores its own copy of every printable file you import, in a self-hosted library you control. Ten sites feed the library, including MakerWorld, Printables, Thingiverse, and MyMiniFactory: paste a link or use the browser extension, and a model arrives with its files, photos, description, tags, author, and source link. Synced collections add newly bookmarked models as often as every hour. Files you already own come in as STL, 3MF, STEP, OBJ, or LightBurn uploads, ZIPs, folder trees, or drops into a watched consume folder. Each model gets an interactive 3D viewer with a thumbnail for every plate of a multi-plate 3MF. On first open, a check flags surface holes, non-manifold edges, flipped faces, and loose fragments before you slice. Sort with nested categories, collections, and tags, mark favourites, and find anything with full-text search. Optional AI sorts imports into your categories and tidies descriptions, using a local Ollama model or a cloud API. Open any file in Bambu Studio, OrcaSlicer, PrusaSlicer, Cura, or Creality Print, or download a model, tag, or collection as one ZIP. Every user gets a separate library, with invite-only registration, email verification, and single sign-on. A dashboard shows library statistics, profiles show a year-long activity heatmap, and MCP lets an AI assistant work with the collection. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.

Running out of filament mid-print ruins multi-hour 3D printing jobs, and Spoolman solves this by tracking every gram of plastic across your entire workshop in a centralized, self-hosted inventory database. Connected directly to Klipper, Moonraker, Mainsail, Fluidd, OctoPrint, and OctoEverywhere, the service deducts filament weight automatically over live WebSockets as your extruders run. You can import manufacturer specifications from the community SpoolmanDB catalog, filter your library by color similarity or material type, and organize spools on a drag-and-drop board grouped by storage location or custom fields. A built-in label designer generates printable QR code sheets containing spool metadata, while NFC and RFID tag scanning lets you tap a physical roll against an ESPHome reader or Android phone to pull up its record immediately. Multi-printer workshops can monitor concurrent consumption from several machines simultaneously, expose inventory metrics to Prometheus and Home Assistant, and query stock levels through a Model Context Protocol (MCP) server. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.

3D printing enthusiasts who accumulate thousands of downloaded STL, 3MF, STEP, and OBJ archives across disorganized folders can index, preview, and catalog their entire library with Manyfold, a self-hosted digital asset manager purpose-built for additive manufacturing. Point it at an existing local directory or an S3-compatible bucket and it automatically scans nested folders, groups multi-part meshes into unified model entries, and renders interactive 3D previews right in your browser. You can organize assets by creator, collection, tag, and scale, distinguish between pre-supported and unsupported resin files, and import rich metadata directly from Thingiverse, Printables, Cults3D, and MyMiniFactory. Built-in troubleshooting tools flag duplicate meshes, manifold geometry errors, and inefficient file formats, while customizable file-naming templates reorganize messy directory trees on disk with a single click. Ready to print? Open models directly in OrcaSlicer, PrusaSlicer, or UltiMaker Cura, or transmit sliced G-code straight to OctoPrint and Moonraker printers. Multi-user access control and native ActivityPub federation let you share public collections and follow remote creators across the Fediverse. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.