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Item Flow Monitor
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Real-time item throughput monitoring for any container.
Fabric is a mod loader for versions 1.14+ of Minecraft, particularly popular for client side and optimization mods.
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Must be installed on both the client and the server.
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About
Description
Real-time item throughput monitoring for Minecraft containers.
Item Flow Monitor adds an unobtrusive UI overlay to standard containers (chests, hoppers, furnaces, and more) that shows the rate of items flowing through them — in items/min or items/hour. Perfect for players who build farms and want to measure farm efficiency and production rates without manual counting, timers, or extra blocks.
This mod does not add any new blocks or items. It only adds an informational overlay to existing container screens.
Features
- Real-time flow rate — see items/min or items/hour directly in the container UI
- Time-to-full estimate — hover over the rate to see when the container will be full
- Three calculation modes — Average (stable long-term), Actual (exact count per window), Predicted (real-time EMA estimate)
- All standard containers — chests, double chests, hoppers, furnaces, blast furnaces, smokers, barrels, dispensers, droppers, shulker boxes
- Flexible item tracking — track all items, auto-detect the first item, or manually select a specific one
- Configurable via Mod Menu — toggle tracking per container type
- 12 languages — English, Русский, 中文, Español, Deutsch, Français, 日本語, 한국어, Português, Italiano, Polski, Українська
- Lightweight — observer-based architecture, zero overhead without active trackers
How to Use
- Install the mod (requires Fabric API)
- Open any container and click the IFM button
- Toggle tracking ON, choose your period and calculation mode
- The flow rate overlay appears in the corner of the container screen
- Hover over the rate to see estimated time until the container is full
Carpet Hopper Counters vs Item Flow Monitor
If you've used Carpet hopper counters to measure farm rates — Item Flow Monitor solves the same problem, but differently:
| Carpet Hopper Counters | Item Flow Monitor | |
|---|---|---|
| Setup | Hopper → wool block + /counter command |
Open any container, click one button |
| Where you see results | Chat via command | Directly in the container UI |
| Items | Destroyed by counter | Stay in the container |
| Use case | Technical testing, tick warp | Survival gameplay |
Compatibility
- Client + Server — install on both sides for accurate real-time data
- Lithium compatible — observer-based tracking, no hopper mixin conflicts
- Works with Mod Menu, Sodium, Iris, Fabric API
- Tested on Minecraft 1.21.11
FAQ
Q: Does it work on vanilla servers? A: The mod requires server-side installation for tracking. Client-only mode is not currently supported.
Q: Does it affect performance? A: No. The mod only tracks containers with active trackers. Zero overhead without trackers.
Q: Can I hide the overlay for specific container types? A: Yes — configure through Mod Menu → Item Flow Monitor.
Real-time item throughput monitoring for Minecraft containers.
Item Flow Monitor adds an unobtrusive UI overlay to standard containers (chests, hoppers, furnaces, and more) that shows the rate of items flowing through them — in items/min or items/hour. Perfect for players who build farms and want to measure farm efficiency and production rates without manual counting, timers, or extra blocks.
This mod does not add any new blocks or items. It only adds an informational overlay to existing container screens.
Features
- Real-time flow rate — see items/min or items/hour directly in the container UI
- Time-to-full estimate — hover over the rate to see when the container will be full
- Three calculation modes — Average (stable long-term), Actual (exact count per window), Predicted (real-time EMA estimate)
- All standard containers — chests, double chests, hoppers, furnaces, blast furnaces, smokers, barrels, dispensers, droppers, shulker boxes
- Flexible item tracking — track all items, auto-detect the first item, or manually select a specific one
- Configurable via Mod Menu — toggle tracking per container type
- 12 languages — English, Русский, 中文, Español, Deutsch, Français, 日本語, 한국어, Português, Italiano, Polski, Українська
- Lightweight — observer-based architecture, zero overhead without active trackers
How to Use
- Install the mod (requires Fabric API)
- Open any container and click the IFM button
- Toggle tracking ON, choose your period and calculation mode
- The flow rate overlay appears in the corner of the container screen
- Hover over the rate to see estimated time until the container is full
Carpet Hopper Counters vs Item Flow Monitor
If you've used Carpet hopper counters to measure farm rates — Item Flow Monitor solves the same problem, but differently:
| Carpet Hopper Counters | Item Flow Monitor | |
|---|---|---|
| Setup | Hopper → wool block + /counter command |
Open any container, click one button |
| Where you see results | Chat via command | Directly in the container UI |
| Items | Destroyed by counter | Stay in the container |
| Use case | Technical testing, tick warp | Survival gameplay |
Compatibility
- Client + Server — install on both sides for accurate real-time data
- Lithium compatible — observer-based tracking, no hopper mixin conflicts
- Works with Mod Menu, Sodium, Iris, Fabric API
- Tested on Minecraft 1.21.11
FAQ
Q: Does it work on vanilla servers? A: The mod requires server-side installation for tracking. Client-only mode is not currently supported.
Q: Does it affect performance? A: No. The mod only tracks containers with active trackers. Zero overhead without trackers.
Q: Can I hide the overlay for specific container types? A: Yes — configure through Mod Menu → Item Flow Monitor.
Screenshots
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time-to-full.png time-to-full.png -
settings-panel.png settings-panel.png -
settings-closeup.png settings-closeup.png -
overlay-hopper.png overlay-hopper.png -
overlay-chest.png overlay-chest.png -
config-screen.png config-screen.png
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Flow rate overlay Real-time items/min display on a chest -
Hopper monitoring Tracking item flow through a hopper -
Settings panel Configure tracking mode, period, and rate calculation -
Time-to-full estimate Hover over the rate to see when the container fills up -
Mod Menu configuration Toggle IFM per container type
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