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Head-to-head · Minecraft Seed Map Tools

Chunkbase vs Cubiomes Viewer

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score Chunkbase #2 in Minecraft Seed Map Tools 9.3/10 Free · no account needed Free plan✓ 4 of 5 features Open Chunkbase
Cubiomes Viewer #4 in Minecraft Seed Map Tools 8.2/10 Free · open source (GPLv3) Free plan✓ 4 of 5 features Get Cubiomes Viewer

Chunkbase leads on 1 check, Cubiomes Viewer on 0, and 5 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreChunkbase · 9.3/10
  • Free planboth

Chunkbase scores higher on our rubric for minecraft seed map tools: 9.3 against 8.2 out of 10; our editors rank them #2 and #4.

Chunkbase offers bedrock edition; Cubiomes Viewer doesn't.

Chunkbase is the better fit for finding structures and biomes in an existing world. Cubiomes Viewer is the better fit for serious seed hunting on Java 1.21 and earlier.

  • Chunkbase fits best

    Finding structures and biomes in an existing world

  • Cubiomes Viewer fits best

    Serious seed hunting on Java 1.21 and earlier

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Side by side

Feature Chunkbase 9.3/10 Visit ↗ Cubiomes Viewer 8.2/10 Visit ↗
At a glance
Editor score 9.3 8.2
Ranking #2 in Minecraft Seed Map Tools #4 in Minecraft Seed Map Tools
Best for Finding structures and biomes in an existing world Serious seed hunting on Java 1.21 and earlier
Pricing model Free Free
Starting price Free · no account needed Free · open source (GPLv3)
Free plan ✓ ✓
Free trial — —
Features Chunkbase 4/5 · Cubiomes Viewer 4/5
Java Edition ✓ ✓
Bedrock Edition ✓ (best) —
Seed finder ✓ ✓
Nether & End maps ✓ ✓
Open source Not checked yet ✓ (best)
Specs
Runs on Browser Windows, Linux, macOS (experimental)
Newest Java version 26.3 1.21 (Winter Drop)
Our review
Pros
  • Covers Java 1.7 to 26.3 with Large Biomes, and Bedrock from 1.14 to 26.50
  • Advanced search mixes targets with nearby biome, feature and terrain conditions
  • Reads the seed from a save file and keeps named markers for each world
  • Nested conditions find features placed relative to one another
  • Quad-hut and quad-monument generators speed up searches for rare layouts
  • Lua scripts and logic-gate helpers build custom filters inside the app
Cons
  • Markers and completed spots stay in one browser unless you export them
  • Dungeons, world spawn and geodes are flagged as not fully reliable
  • Some small structures point only to their chunk's centre, not the exact block
  • Java Edition only, and the latest release stops at 1.21 (Winter Drop)
  • No new release since November 2024, so 2025 and 2026 drops are missing
  • macOS is not formally supported; builds target Windows and Linux
Our verdict

Chunkbase is the seed map most other tools get measured against. Type or paste a seed, pick the edition and version the world was generated on, and the Overworld, Nether or End appears with biomes and around thirty toggleable features,…

Read the review →

Cubiomes Viewer puts a graphical interface on cubiomes, the C library that reproduces Minecraft's biome and structure generation, and it is built for speed. The map viewer outlines biomes across the Overworld, Nether and End with a wide…

Read the review →
  1. ChunkbaseMinecraft Seed Map Tools 9.3Free · no account needed
  2. Cubiomes ViewerMinecraft Seed Map Tools 8.2Free · open source (GPLv3)

Strengths and trade-offs

  • Chunkbase — where it wins

    • Covers Java 1.7 to 26.3 with Large Biomes, and Bedrock from 1.14 to 26.50
    • Advanced search mixes targets with nearby biome, feature and terrain conditions
    • Reads the seed from a save file and keeps named markers for each world

    Where it doesn't

    • Markers and completed spots stay in one browser unless you export them
    • Dungeons, world spawn and geodes are flagged as not fully reliable
    • Some small structures point only to their chunk's centre, not the exact block

  • Cubiomes Viewer — where it wins

    • Nested conditions find features placed relative to one another
    • Quad-hut and quad-monument generators speed up searches for rare layouts
    • Lua scripts and logic-gate helpers build custom filters inside the app

    Where it doesn't

    • Java Edition only, and the latest release stops at 1.21 (Winter Drop)
    • No new release since November 2024, so 2025 and 2026 drops are missing
    • macOS is not formally supported; builds target Windows and Linux
  • Chunkbase9.3/10 · Free · no account needed

    The reference seed map: Java back to 1.7, Bedrock up to 26.50, advanced search and a seed finder, all free.

    Open ChunkbaseFull verdict →
  • Cubiomes Viewer8.2/10 · Free · open source (GPLv3)

    The power tool for seed hunters: nested conditions, Lua filters and quad-hut searches, free on the desktop.

    Get Cubiomes ViewerFull verdict →

More comparisons

All minecraft seed map tools comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update