ModsJava
SieveCraft – Custom Sieves & Mesh System (1.21+)
Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
⬇ Download on Spigot
Custom Sieves • Custom Hammers • Skyblock Mechanics • Paper 1.21+
SieveCraft brings classic Skyblock-style sieving mechanics to modern Paper servers.
SieveCraft brings classic Skyblock-style sieving mechanics to modern Paper servers.
Turn basic blocks into valuable resources using custom meshes and powerful hammers — fully configurable, optimized and survival-friendly.
Designed for economy, progression and automation.
• Custom Sieve block (Composter-based)
• Fully custom Mesh system (Mesh → Netherite Mesh)
• Custom Hammers (Stone → Netherite)
• Advanced drop tables per mesh tier
• Animated sieve processing (visual level animation)
• Progressive batch processing (1 → Max tier per cycle)
• Locked input type per cycle (no mixed exploits)
• Hopper automation support (top input only)
• GUI-based Mesh & Drop viewer
• Recipe viewer GUI
• Per-sieve access control (Owner / Public / Default)
• Configurable protection system
• Debug command for diagnostics
• Full English localization
• Performance-safe ticking system
Spoiler: Mesh System
Mesh System
Each mesh tier increases processing capacity per cycle:
Mesh Tier Max Items Per Cycle
Mesh 1
Flint Mesh 2
Iron Mesh 4
Gold Mesh 8
Diamond Mesh 16
Netherite Mesh 32
Processing starts even with 1 item.
Maximum capacity defines how many items can be processed in a single completed cycle.
Each mesh tier increases processing capacity per cycle:
Mesh Tier Max Items Per Cycle
Mesh 1
Flint Mesh 2
Iron Mesh 4
Gold Mesh 8
Diamond Mesh 16
Netherite Mesh 32
Processing starts even with 1 item.
Maximum capacity defines how many items can be processed in a single completed cycle.
Spoiler: Automation
Automation
• Hopper input from sides and top
• Chest input from top
• Optional chest output below
• Gradual transfer (visual IO flow)
• Per-sieve owner protection
• Configurable break policy
• Hopper input from sides and top
• Chest input from top
• Optional chest output below
• Gradual transfer (visual IO flow)
• Per-sieve owner protection
• Configurable break policy
Spoiler: More Images
![[IMG]](//proxy.spigotmc.org/407c9876a14175f774a71b0f5b007ed04c671add/68747470733a2f2f692e696d6775722e636f6d2f6d4531713754732e676966)
![[IMG]](//proxy.spigotmc.org/b409fb2b4000c0cb4d3dd13bdba3b165764c262b/68747470733a2f2f692e696d6775722e636f6d2f6966764c7131472e676966)
Spoiler: Commands
Commands
/sievecraft give <item>
/sievecraft reload
/sievecraft debug
/sievecraft recipes
/sievecraft mesh
/sievecraft sieve access <public|private|default>
/sievecraft give <item>
/sievecraft reload
/sievecraft debug
/sievecraft recipes
/sievecraft mesh
/sievecraft sieve access <public|private|default>
Spoiler: Permissions
Permissions
sievecraft.use (default: true)
sievecraft.recipes (default: true)
sievecraft.mesh (default: true)
sievecraft.admin (default: op)
sievecraft.use (default: true)
sievecraft.recipes (default: true)
sievecraft.mesh (default: true)
sievecraft.admin (default: op)
Permission: sievecraft.use
↓
Commands:
/sievecraft recipes:
Opens the recipe viewer GUI.
/sievecraft mesh: Opens the mesh overview menu.
/sievecraft sieve access <public|private|default>: Changes access settings for your sieve.
/sievecraft mesh: Opens the mesh overview menu.
/sievecraft sieve access <public|private|default>: Changes access settings for your sieve.
Permission: sievecraft.admin
↓
Commands:
/sievecraft give <item>:
Gives a custom SieveCraft item.
/sievecraft reload: Reloads the plugin configuration and messages.
/sievecraft debug: Shows diagnostic information about the targeted sieve.
/sievecraft reload: Reloads the plugin configuration and messages.
/sievecraft debug: Shows diagnostic information about the targeted sieve.
Spoiler: All Permissions
Permissions:
sievecraft.use: Allows players to use SieveCraft GUI features.
sievecraft.recipes: Allows players to open the recipe viewer.
sievecraft.mesh: Allows players to open the mesh viewer.
sievecraft.admin: Grants full administrative control over the plugin.
Code (Text):
Permissions:
sievecraft.use: Allows players to use SieveCraft GUI features.
sievecraft.recipes: Allows players to open the recipe viewer.
sievecraft.mesh: Allows players to open the mesh viewer.
sievecraft.admin: Grants full administrative control over the plugin.
Spoiler: More Information
/sievecraft debug: Displays detailed information about the sieve you are looking at. Includes owner, access mode, active mesh tier, progress status and input/output summary.
/sievecraft sieve access: Allows the sieve owner (or admin) to change the break/access policy for that specific sieve instance.
Code (Text):
/sievecraft debug: Displays detailed information about the sieve you are looking at. Includes owner, access mode, active mesh tier, progress status and input/output summary.
/sievecraft sieve access: Allows the sieve owner (or admin) to change the break/access policy for that specific sieve instance.
Spoiler: config.yml
Default config.yml (shortened example)
debug: false
sieve:
durationTicks: 60
ioPerSecond: 8
protection:
break_policy: OWNER_OR_ADMIN
allow_player_override: true
migrate_owner_on_first_use: true
accepted_inputs:
- GRAVEL
- SAND
- RED_SAND
- DIRT
- SOUL_SAND
Full drop tables for each mesh tier are configurable inside config.yml.
debug: false
sieve:
durationTicks: 60
ioPerSecond: 8
protection:
break_policy: OWNER_OR_ADMIN
allow_player_override: true
migrate_owner_on_first_use: true
accepted_inputs:
- GRAVEL
- SAND
- RED_SAND
- DIRT
- SOUL_SAND
Full drop tables for each mesh tier are configurable inside config.yml.
Spoiler: Custom Items
Custom Items
• Custom Ore Chunks (Iron / Gold / Copper)
• Custom crafting-only processing
• Vanilla smelting disabled
• Custom recipe enforcement
• Custom Ore Chunks (Iron / Gold / Copper)
• Custom crafting-only processing
• Vanilla smelting disabled
• Custom recipe enforcement
Installation
- Download the plugin
- Put the jar into your /plugins folder
- Restart the server
- Edit configs in /plugins/SieveCraft
Please do not use reviews for bug reports.
Use the discussion tab or contact me directly on Spigot.
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Spigot — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
SieveCraft – Custom Sieves & Mesh System (1.21+) is a free Minecraft Java mod. Compatible with Minecraft 1.21. Downloaded 21 times (via Spigot). Download it and open it directly in the game.