Seeder

Free plan Web

What Seeder is

Seeder is a free, open-source browser app for finding, viewing, sharing, and exploring Minecraft Java and Bedrock seeds. Interactive maps display biomes, spawn locations, strongholds, structures, and slime chunks across the Overworld, Nether, and End. Its seed finder searches combinations of biomes and structures and includes presets for survival starts, speedruns, builders, and other searches. Additional tools include a Nether portal calculator, stronghold finder, slime chunk and structure finders, a circle and sphere generator, and a seed poster maker. Users can share seeds or searches by link, share images, and export results as CSV or JSON. Java support spans Beta 1.7 to 26.3, while Bedrock support covers 1.18 through versions 26.50–26.52. Searches run in the browser using cubiomes compiled to WebAssembly. Saved browser data supports up to 50 worlds and 200 locations per world. The service is funded by ads and donations.

Who it suits

Seeder suits Minecraft players looking for seeds, map previews, biome or structure combinations, and related calculators. It is useful when browser-based processing and shareable or exportable results fit your workflow.

What it does well

Maps biomes, structures, and slime chunks
Searches multiple biome and structure requirements
Includes presets for several search goals
Exports results as CSV or JSON
Supports Java and Bedrock editions

What to know first

Searches can slow the user's device
Bedrock structure predictions may be inaccurate
Browser data can be wiped without exported backups
Free service uses ads and donations

Limits

The free browser storage supports up to 50 worlds and 200 locations per world, and saved data can be wiped unless backed up. Bedrock structure predictions may be inaccurate, the spawn is estimated, and the End's outer islands may differ.

Plans

Plan	Billed and limits	Price
Free	Free to use · supported by ads and donations	Free

As mcseeder.com lists them, read 11 Oct 2026. The maker's own page has the final word.

Getting started

Open https://mcseeder.com/ in a browser.
Choose Java Edition or Bedrock Edition.
Explore a seed map or use the finder to search by biomes and structures.
Share results by link or image, or export finder results as CSV or JSON.
Export backups of saved worlds and locations to preserve them.

Verdict

Seeder offers a broad set of seed maps, searches, calculators, and sharing tools without an account. Users should account for browser-storage limits, processing demands, and Bedrock accuracy cautions.

Questions

How much does Seeder cost?

Seeder is free to use and open source. It is funded by ads and donations.

Is there a free plan or trial?

The listed Free plan costs nothing. There is no free trial.

Which Minecraft editions and versions does it support?

Java Edition support runs from Beta 1.7 to 26.3. Bedrock Edition support runs from 1.18 through versions 26.50–26.52.

What can Seeder search for?

Its finder searches for seeds matching multiple biomes and structures, and offers presets for survival starts, speedruns, builders, and other searches.

Does Seeder have accounts or collect typed search input?

Seeder says it has no accounts or server of its own, and that typed search input is not uploaded. Google Analytics and AdSense are used.

Who makes Seeder?

The About page identifies the maker as TrinTragula on GitHub.

Facts from Seeder's own pages

Analytics details: The maker says Google Analytics 4 does not store IP addresses and data is kept for 14 months; typed coordinates, world names, notes, and other written text are not collected. · mcseeder.com, 11 Oct 2026
Bedrock limitations: The maker cautions that Bedrock structure predictions can be inaccurate, the spawn is estimated, and the End's outer islands may differ. · mcseeder.com, 11 Oct 2026
Browser processing: World generation and searches run in the user's browser using cubiomes compiled to WebAssembly, and the site says typed search input is not uploaded. · mcseeder.com, 11 Oct 2026
Funding: Seeder is free and funded by ads and donations. · mcseeder.com, 11 Oct 2026
Maker: The About page identifies the maker as TrinTragula on GitHub; it does not state a headquarters or founding date. · mcseeder.com, 11 Oct 2026
Performance: Seed searches are CPU intensive and may slow the user's device; the maker says biome searches can be especially slow from Minecraft 1.18 onward. · mcseeder.com, 11 Oct 2026
Privacy: Seeder says it has no accounts or server of its own; saved worlds and locations stay in the browser, while Google Analytics and AdSense are used. · mcseeder.com, 11 Oct 2026
Purpose: Seeder is a browser app for finding, showing, sharing, and exploring Minecraft Java and Bedrock seeds. · mcseeder.com, 11 Oct 2026
Saved-world limits: The browser can store up to 50 worlds and 200 locations per world, and the maker says users must export backups because browser data may be wiped. · mcseeder.com, 11 Oct 2026
Seed finder: The finder searches for seeds matching multiple biomes and structures and offers presets for survival starts, speedruns, builders, and other searches. · mcseeder.com, 11 Oct 2026
Seed maps: Its interactive maps show biomes, spawn, strongholds, structures, and slime chunks across the Overworld, Nether, and End. · mcseeder.com, 11 Oct 2026
Sharing and exports: Users can share seeds and searches by link, share seed images, and export finder results as CSV or JSON. · mcseeder.com, 11 Oct 2026
Support: Users can report bugs and ideas on GitHub or contact the maker by email or Twitter; the site also accepts donations. · mcseeder.com, 11 Oct 2026
Supported editions: The site supports Java Edition from Beta 1.7 to 26.3 and Bedrock Edition from 1.18 through versions 26.50–26.52. · mcseeder.com, 11 Oct 2026
Tools: Browser tools include a Nether portal calculator, stronghold finder, slime chunk and structure finders, circle and sphere generator, and seed poster maker. · mcseeder.com, 11 Oct 2026

Where Seeder stands on Freedom251

Minecraft Seed Finders#25 of 36