PowerupStack
Aternos is one of the most popular and established free Minecraft server hosting providers, but it is not the only option.
Depending on what you need from your server, an Aternos alternative may give you more RAM, more storage, easier server startup, additional hosting regions, fewer advertisements, or better tools for building a public Minecraft community.
We compared four popular free Minecraft hosting providers in 2026:
- PowerupStack
- Aternos
- FalixNodes
- Minehut
Each provider has different strengths. PowerupStack offers the most included RAM without boosts and free hosting across multiple regions. Aternos has an established platform with strong mod and modpack support. FalixNodes provides more free storage. Minehut offers access to its existing Minecraft network for public server discovery.
Last tested: August 2026
Disclosure: This comparison is published by PowerupStack, one of the hosting providers included below. We have tried to compare each provider fairly based on hands-on testing and current plan information. Free hosting limits can change, so always check the provider's latest plan details before migrating an important server.
Best Aternos alternatives at a glance
| Provider | Free RAM | Storage | Player slots | RAM boosts | Third-party ads | Free hosting regions |
|---|---|---|---|---|---|---|
| PowerupStack | 3 GB | 4 GB | Unlimited | No | No | Europe, North America, Singapore, Australia |
| Aternos | ~2.3 GB* | 4 GB | Unlimited | Yes | Yes | Europe |
| FalixNodes | 2 GB | 10 GB | Unlimited | No | Yes | Europe |
| Minehut | 1 GB | 10 GB | 10 | No | Yes | North America |
*We observed approximately 2.3 GB RAM when testing Aternos with Paper 26.2. Aternos RAM allocation can vary depending on the Minecraft version and server software.
Our quick recommendations
PowerupStack: Best if you want 3 GB included RAM, start-on-connect, unlimited player slots, no third-party advertisements, or multiple free server regions.
Aternos: Best if you value an established free host with extensive Minecraft software, mod, and modpack support.
FalixNodes: Best if you want 10 GB free storage, unlimited slots, mods, modpacks, and more customization.
Minehut: Best if you want to build a public Minecraft server and benefit from Minehut's existing player network.
There is no single best free Minecraft host for every server. The right choice depends on which limitations matter most to you.
Why look for an Aternos alternative?
Aternos remains a strong free Minecraft hosting provider.
It supports Java and Bedrock servers, plugins, mods, modpacks, and many different types of Minecraft server software. It is reliable, established, and has been used by a large Minecraft community for years.
However, there are several reasons you might consider alternatives to Aternos.
Players cannot simply connect to start an Aternos server
When an Aternos server is offline, somebody with the required Aternos access must start it.
The owner can give trusted users permission to start the server, so the owner does not always need to do it personally.
However, an ordinary Minecraft player who only knows the server address cannot wake the server by connecting.
This can be inconvenient for both private and public servers.
For example, if somebody discovers your public server while nobody is currently online, they cannot start an offline Aternos server unless they have been given access to its Aternos control panel.
You may want more included RAM
Aternos dynamically allocates RAM depending on the Minecraft version and server software.
During our August 2026 test with Paper 26.2, we observed approximately 2.3 GB RAM.
Aternos also offers temporary RAM Boosts, but these require completing tasks through Medal.
PowerupStack includes 3 GB RAM without boosts, while FalixNodes provides 2 GB and Minehut provides 1 GB.
You may want a server closer to your players
Aternos provides its free hosting from Europe.
That works well for European players, but geographic distance matters for Minecraft latency.
If your community is located in North America, Southeast Asia, or Australia, choosing a server closer to your players can result in a much more responsive connection.
Among the free providers compared here, PowerupStack is the only one offering free Minecraft hosting across multiple regions.
1. PowerupStack: best for start-on-connect, RAM, and multiple regions
PowerupStack takes an on-demand approach to free Minecraft hosting.
Instead of keeping an empty free server online indefinitely, the server can shut down while nobody is playing.
When someone wants to play again, they simply attempt to join using the normal Minecraft server address.
That connection automatically starts the server.
There is no need to visit the hosting panel, send the player a wake link, or give them subuser access.
This is useful for both private and public Minecraft servers.
Start-on-connect makes free hosting feel closer to 24/7
Consider a private survival server.
Everyone logs off in the evening and the server shuts down. The next day, one of your friends wants to play before you are online.
They simply connect.
PowerupStack detects the connection and starts the server.
The same advantage applies to public servers.
Suppose you advertise an SMP on Discord, Reddit, social media, or a Minecraft server list. The server is currently empty and has shut down.
A new player discovers it and attempts to join.
That player can trigger the server startup without knowing the owner and without having access to the PowerupStack control panel.
This can make start-on-connect particularly useful for:
- Public SMPs
- Small community servers
- Private friend groups
- Event servers
- New public servers
- Servers with irregular activity
- Communities spread across different time zones
The server still needs time to start, so this is not identical to a server that remains online continuously.
Free servers may also queue during periods of high regional demand.
For communities requiring immediate availability at all times, paid always-on hosting may still be more appropriate.
PowerupStack free plan
The free Minecraft plan currently includes:
- 3 GB RAM
- 4 GB storage
- Unlimited player slots
- Java Edition hosting
- Bedrock Edition hosting
- Approved plugin support
- Start-on-connect
- Automatic shutdown while unused
- DDoS protection
- Free server subdomain
- No third-party advertisements
- Europe hosting
- North America hosting
- Singapore hosting
- Australia hosting
3 GB included RAM
PowerupStack provides 3 GB RAM on its free Minecraft plan.
That is the highest included RAM allocation among the four providers in this comparison without using temporary RAM boosts.
| Provider | Included free RAM |
|---|---|
| PowerupStack | 3 GB |
| Aternos | ~2.3 GB in our Paper 26.2 test* |
| FalixNodes | 2 GB |
| Minehut | 1 GB |
*Aternos RAM varies depending on server software and version.
More RAM does not automatically mean better Minecraft server performance. CPU performance, server software, world activity, view distance, plugins, mods, and player behavior also matter.
However, insufficient RAM can quickly become a limitation as a server grows.
Free Minecraft hosting in four regions
PowerupStack's free Minecraft tier is currently available in:
- Europe
- North America
- Singapore
- Australia
Among the providers compared here, PowerupStack is the only one offering free hosting across multiple geographic regions.
That can be especially important for communities in Asia and Australia.
For example, players in Singapore will generally experience lower network latency connecting to a Singapore server than connecting to a Minecraft server hosted in Europe.
Multiple locations also benefit public servers because owners can choose a region closer to the audience they want to serve.
Unlimited player slots
PowerupStack does not impose a fixed player-slot limit on the free plan.
That does not mean a 3 GB server can support unlimited active players.
The practical player capacity depends on factors such as:
- CPU performance
- Minecraft version
- Server software
- View and simulation distance
- Plugins
- World generation
- Entities and farms
- Player activity
Unlimited slots simply means there is no artificial hosting-plan limit such as Minehut's 10-player cap.
No third-party advertisements
PowerupStack does not display third-party advertisements on its free tier.
PowerupStack branding and promotions for PowerupStack's own products may still appear.
Aternos, Minehut, and FalixNodes all displayed third-party advertising during our August 2026 testing.
Advertising is a legitimate way to fund free server infrastructure, but some users may prefer a hosting panel without third-party ads.
Plugin support
PowerupStack supports plugins on the free tier through approved workshop content.
Free servers cannot upload arbitrary plugin JAR files.
Aternos uses a similar controlled approach, where plugins and other addons need to be available through its supported library or approval system.
If your server requires specific plugins, check whether they are available before migrating.
PowerupStack pros
- 3 GB included RAM
- Highest included RAM in this comparison without boosts
- Start-on-connect
- Unlimited player slots
- No third-party advertisements
- Europe, North America, Singapore, and Australia regions
- Java and Bedrock support
- Plugin support
- Paid upgrade path
- Useful for both public and private servers
PowerupStack cons
- 4 GB storage limit
- Free servers are not continuously online
- Startup takes some time
- Free servers can queue during high regional demand
- Free plugins must be approved
- Resource-intensive modpacks may require paid hosting
2. Aternos: best established free Minecraft host for mods and modpacks
Aternos remains one of the strongest free Minecraft hosts in 2026.
Its main advantage is the maturity of its Minecraft hosting ecosystem.
Aternos supports a wide selection of:
- Minecraft versions
- Server software
- Plugins
- Mods
- Modpacks
- Java Edition servers
- Bedrock Edition servers
For users experimenting with modded Minecraft, this broad support can make Aternos particularly attractive.
How much RAM does Aternos give?
Aternos does not provide one fixed RAM amount for every server.
RAM varies depending on the Minecraft version and server software.
During our August 2026 testing with Paper 26.2, the server had approximately 2.3 GB RAM available.
A different configuration may receive a different amount.
Aternos RAM Boost
Aternos is the only provider in this comparison offering RAM boosts.
Users can currently earn temporary RAM Boosts through Medal.
These boosts can increase the server's available RAM beyond its normal allocation.
This means Aternos can potentially provide more RAM than shown in the base comparison, but the additional memory is not included automatically with every free server.
Starting an Aternos server
Aternos servers shut down when nobody is playing.
When the server is offline, it needs to be started through Aternos.
The owner can give another Aternos user permission to start the server, which works well for trusted groups of friends.
However, an ordinary player cannot wake an offline Aternos server simply by connecting to its Minecraft address.
This can be less convenient for public servers where new players may attempt to join while no administrator is available.
Aternos can also use a startup queue when available free hosting capacity is fully occupied.
Aternos storage limit
Aternos limits servers to 4 GB storage.
This can be sufficient for smaller servers, but Minecraft worlds can grow substantially as players explore new terrain.
Long-running survival servers should keep an eye on world size.
Aternos plugins, mods, and modpacks
This is one of Aternos' strongest areas.
Aternos supports a large library of plugins, individual mods, and complete modpacks.
It does not allow unrestricted uploads of arbitrary plugins and mods, but its existing ecosystem is extensive.
For players who want to run established modpacks without paying for hosting, Aternos can be one of the strongest options.
Aternos server location
Aternos free servers are hosted in Europe.
European players should generally have reasonable network latency.
Players located much farther away may benefit from a provider offering a closer region.
Aternos pros
- Established and reliable free hosting
- Unlimited player slots
- Excellent mod support
- Excellent modpack support
- Large plugin library
- Broad server software support
- RAM Boost available
- Java and Bedrock support
- No fixed daily playtime limit
- Mature Minecraft ecosystem
Aternos cons
- Free hosting located in Europe
- 4 GB storage
- Ordinary players cannot wake an offline server
- Third-party advertising
- RAM varies by configuration
- Plugins and mods use an approval/library system
- Startup queues can occur during high demand
3. FalixNodes: best Aternos alternative for free storage and customization
FalixNodes is another popular free Minecraft hosting alternative.
Its free plan provides:
- 2 GB RAM
- 10 GB storage
- Unlimited player slots
- Plugin support
- Mod support
- Modpack support
- Java and Bedrock support
- Free hosting in Europe
- Third-party advertisements
10 GB free storage
One of FalixNodes' biggest advantages is its 10 GB free storage allocation.
That is more than twice the 4 GB available from PowerupStack and Aternos.
Minecraft storage usage can increase because of:
- World exploration
- Nether and End chunks
- Mods
- Modpacks
- Plugins
- Player data
- Logs
- Generated maps
- Multiple worlds
If you expect a large survival world or need more room for server files, 10 GB provides significantly more headroom.
2 GB RAM
FalixNodes provides 2 GB RAM on its free plan.
That places it below PowerupStack's 3 GB allocation and below the approximately 2.3 GB we observed with our tested Aternos configuration, but above Minehut's 1 GB.
Two gigabytes can work well for smaller Minecraft servers but may limit larger modpacks or busy public communities.
Unlimited player slots
FalixNodes does not impose a fixed player-slot limit on its free plan.
Like PowerupStack and Aternos, the practical player capacity will instead depend on the resources available to the server.
Mods and modpacks
FalixNodes supports plugins, mods, and modpacks.
This makes it a useful Aternos alternative for users who want customization but also need more free disk space.
FalixNodes server wake tool
FalixNodes allows players to wake a sleeping server using its public Start Server tool.
Someone with the server address can use the wake tool without needing access to the owner's account.
This is more convenient than requiring the server owner to start the server.
However, it differs from PowerupStack's start-on-connect system because the player still needs to use a separate web-based wake tool before joining.
FalixNodes pros
- 10 GB free storage
- Unlimited player slots
- Plugins supported
- Mods supported
- Modpacks supported
- Public server wake tool
- Broad Minecraft software support
- 2 GB RAM
FalixNodes cons
- Less included RAM than PowerupStack
- Third-party advertisements
- Free hosting limited to Europe
- Separate wake tool required
- Larger modpacks may exceed the free resources
4. Minehut: best Aternos alternative for public server discovery
Minehut differs from the other providers because it combines hosting with a large Minecraft community network.
Players can browse and discover Minehut servers through its ecosystem.
This can create a useful network effect for people trying to grow a public Minecraft server.
Minehut free plan
The Minehut free plan currently provides:
- 1 GB RAM
- 10 GB storage
- 10 player slots
- Plugin support
- Mod support
- Modpack support
- Java support
- Bedrock crossplay
- Access to the Minehut network
- North American hosting
- Third-party advertisements
Minehut's network effect
Running a public Minecraft server creates a problem that hosting alone cannot solve:
You need players.
Minehut already has an audience browsing community Minecraft servers.
That means server owners can potentially attract players from within the Minehut ecosystem instead of relying entirely on:
- Minecraft server lists
- Discord
- Social media
- YouTube
- Word of mouth
For a new public SMP, Lifesteal server, minigame server, or other community project, this built-in discovery can be valuable.
Minehut only provides 1 GB RAM
Minehut's largest free-tier limitation is its 1 GB RAM allocation.
That is significantly less than the other providers compared here.
| Provider | Free RAM |
|---|---|
| PowerupStack | 3 GB |
| Aternos | ~2.3 GB* |
| FalixNodes | 2 GB |
| Minehut | 1 GB |
For a lightweight server with only a few players, 1 GB may be sufficient.
However, it can quickly become restrictive as you add:
- More players
- Plugins
- Mods
- Modpacks
- Larger worlds
- Additional server features
Minehut supports mods and modpacks, but the 1 GB free RAM allocation makes many substantial modpacks impractical.
Minehut 10-player limit
Minehut limits its free plan to 10 simultaneous players.
PowerupStack, Aternos, and FalixNodes do not impose the same fixed player-slot limit.
Ten players may be more than enough for a private server.
For a public server that successfully grows through Minehut's network, however, the limit may eventually require an upgrade.
Minehut pros
- Built-in Minecraft network
- Public server discovery
- Useful for growing public communities
- 10 GB storage
- Plugin support
- Mod support
- Modpack support
- Java and Bedrock access
- Paid upgrade options
Minehut cons
- Only 1 GB RAM
- Maximum 10 players
- Limited resources for modpacks
- Third-party advertisements
- Free hosting limited to North America
Which Aternos alternative has the most free RAM?
If RAM is your main concern, the comparison is straightforward:
| Provider | Free RAM | RAM boosts |
|---|---|---|
| PowerupStack | 3 GB | No |
| Aternos | ~2.3 GB* | Yes |
| FalixNodes | 2 GB | No |
| Minehut | 1 GB | No |
*Based on our Paper 26.2 test. Aternos RAM varies depending on software and version.
PowerupStack provides the most RAM included by default at 3 GB.
Aternos can exceed its base allocation through RAM Boosts.
Remember that RAM alone does not determine performance. CPU performance and server optimization can matter just as much.
Which Aternos alternative has the most storage?
| Provider | Free storage |
|---|---|
| FalixNodes | 10 GB |
| Minehut | 10 GB |
| PowerupStack | 4 GB |
| Aternos | 4 GB |
FalixNodes and Minehut provide the most storage at 10 GB each.
Storage matters particularly for long-running survival servers because generated Minecraft chunks can consume several gigabytes as players explore.
Which free Minecraft host allows the most players?
| Provider | Free player limit |
|---|---|
| PowerupStack | Unlimited slots |
| Aternos | Unlimited slots |
| FalixNodes | Unlimited slots |
| Minehut | 10 |
PowerupStack, Aternos, and FalixNodes do not impose a fixed player-slot limit.
Minehut limits free servers to 10 players.
Unlimited slots do not mean unlimited performance. Server resources still determine how many players can realistically play at the same time.
Which Aternos alternative is best for public Minecraft servers?
All four providers can host public Minecraft servers, but they have different advantages.
PowerupStack: best for automatic public-server startup
PowerupStack's start-on-connect feature is particularly useful for public servers with intermittent activity.
If the server has shut down while empty, a completely new player can trigger startup simply by connecting.
That means the public server can remain accessible even when no administrator is available to manually start it.
PowerupStack also provides 3 GB RAM and unlimited player slots.
Minehut: best for finding new players
Minehut's strongest public-server advantage is its network.
Server owners can expose their servers to an existing Minecraft audience and potentially attract players directly from the Minehut ecosystem.
FalixNodes: best for storage and customization
FalixNodes provides unlimited slots, 10 GB storage, plugins, mods, and modpacks.
Its public wake tool also means players can start an offline server without account access.
Aternos: best for established Minecraft support
Aternos remains reliable and feature-rich.
Its main disadvantage for a public server is that an offline server requires someone with Aternos access to start it.
Which free Minecraft host has the best server locations?
| Provider | Free hosting regions |
|---|---|
| PowerupStack | Europe, North America, Singapore, Australia |
| Aternos | Europe |
| FalixNodes | Europe |
| Minehut | North America |
PowerupStack is the only provider in this comparison offering multiple free hosting regions.
This can make it particularly attractive for:
- Asian Minecraft communities
- Australian players
- North American communities
- International server owners choosing a location near their audience
For example, hosting a server in Singapore can substantially reduce latency for Southeast Asian players compared with connecting to Europe.
Which free Minecraft hosts have ads?
| Provider | Third-party ads |
|---|---|
| PowerupStack | No |
| Aternos | Yes |
| FalixNodes | Yes |
| Minehut | Yes |
PowerupStack does not use third-party advertisements on its free hosting platform.
PowerupStack branding and promotions for its own services may still appear.
Aternos, FalixNodes, and Minehut displayed third-party advertising during our August 2026 testing.
Which host is easiest for players to start?
The server startup experience differs significantly.
PowerupStack
Players simply connect to the Minecraft server.
The connection triggers server startup automatically.
FalixNodes
Players can use the public FalixNodes Start Server tool.
No server-owner account is required.
Aternos
The server must be started by the owner or an Aternos user who has been granted the necessary permission.
Minehut
Minehut servers are closely integrated with its own platform and Minecraft network.
For public communities, the Minehut ecosystem itself plays a larger role in how players discover and access servers.
Aternos vs PowerupStack vs FalixNodes vs Minehut
| Feature | PowerupStack | Aternos | FalixNodes | Minehut |
|---|---|---|---|---|
| Free RAM | 3 GB | ~2.3 GB* | 2 GB | 1 GB |
| RAM boosts | No | Yes | No | No |
| Storage | 4 GB | 4 GB | 10 GB | 10 GB |
| Player slots | Unlimited | Unlimited | Unlimited | 10 |
| Third-party ads | No | Yes | Yes | Yes |
| Java | Yes | Yes | Yes | Yes |
| Bedrock | Yes | Yes | Yes | Yes |
| Plugins | Approved | Approved | Yes | Yes |
| Mods | Limited | Yes | Yes | Yes |
| Modpacks | Limited | Yes | Yes | Yes, limited by 1 GB RAM |
| Offline startup | Start-on-connect | Authorized users | Public wake tool | Platform/network |
| Europe | Yes | Yes | Yes | No |
| North America | Yes | No | No | Yes |
| Singapore | Yes | No | No | No |
| Australia | Yes | No | No | No |
| Best for | RAM, start-on-connect, regions | Established hosting and modpacks | Storage and customization | Public server discovery |
*Aternos RAM varies. Approximately 2.3 GB was observed with Paper 26.2 during our August 2026 test.
Which Aternos alternative should you choose?
Choose PowerupStack if you want more included RAM and easier server access
PowerupStack stands out for:
- 3 GB included RAM
- Start-on-connect
- Unlimited player slots
- No third-party advertisements
- Europe, North America, Singapore, and Australia regions
Start-on-connect works well for both private and public Minecraft servers because players do not need access to the hosting panel to wake an offline server.
Choose Aternos if you want an established platform for mods and modpacks
Aternos remains one of the best free hosting choices for players who prioritize:
- Reliability
- Server software selection
- Mods
- Modpacks
- An established ecosystem
Its main trade-offs are European-only hosting, advertising, and requiring an authorized Aternos user to start an offline server.
Choose FalixNodes if you want more free disk space
FalixNodes provides:
- 10 GB storage
- Unlimited player slots
- Plugins
- Mods
- Modpacks
- Public server wake functionality
It is a strong option if storage and customization matter more than having the most included RAM.
Choose Minehut if you want to attract public players
Minehut's biggest advantage is its network effect.
If your biggest challenge is finding people to join your Minecraft server, access to Minehut's existing player community can be valuable.
Its 1 GB RAM and 10-player free limit are the main trade-offs.
Can I move my Aternos server to another host?
Yes.
Your Minecraft world is not permanently tied to Aternos.
A typical migration looks like this:
- Make a complete backup of your Aternos server.
- Download your Minecraft world.
- Create a server with the new provider.
- Choose the same Minecraft version or a compatible version.
- Upload the world.
- Configure the server to load it.
- Reinstall required plugins or mods.
- Verify permissions and configuration.
- Test the new server.
- Keep your original backup until you are satisfied everything migrated correctly.
Always make a backup before migrating an important world.
Frequently asked questions
What is the best Aternos alternative in 2026?
There is no single best Aternos alternative for everyone.
PowerupStack is strong for 3 GB included RAM, start-on-connect, unlimited slots, no third-party ads, and multiple free regions.
Aternos remains strong for mods and modpacks.
FalixNodes offers more storage and customization.
Minehut is particularly useful for public server discovery.
What is the best free Aternos alternative with more RAM?
PowerupStack provides 3 GB RAM on its free plan, which is the highest included RAM amount in this comparison without boosts.
Aternos provided approximately 2.3 GB in our Paper 26.2 test, FalixNodes provides 2 GB, and Minehut provides 1 GB.
Does Aternos have RAM Boost?
Yes.
Aternos offers temporary RAM Boosts through Medal.
PowerupStack, FalixNodes, and Minehut are listed as not offering RAM boosts in this comparison.
Which Aternos alternative has the most storage?
FalixNodes and Minehut each provide 10 GB storage on their free plans.
PowerupStack and Aternos provide 4 GB.
Which free Minecraft host has unlimited player slots?
PowerupStack, Aternos, and FalixNodes allow unlimited player slots on the free plans compared here.
Minehut limits its free server to 10 players.
Is there an Aternos alternative without third-party ads?
Yes.
PowerupStack does not display third-party advertisements on its free tier.
PowerupStack branding and promotions for its own services may still appear.
Which free Minecraft host is best for mods and modpacks?
Aternos is particularly strong for mods and modpacks because of its mature Minecraft software and addon ecosystem.
FalixNodes also supports mods and modpacks.
Minehut supports them as well, but its 1 GB free RAM allocation significantly limits larger modpacks.
Can players start an Aternos server without the owner?
Yes, but the owner must first give another Aternos user the required Start permission.
A normal player who only knows the Minecraft server address cannot wake an offline Aternos server.
Is there an Aternos alternative that starts when someone joins?
Yes.
PowerupStack supports start-on-connect.
When a player attempts to connect to an offline server, that connection can trigger the Minecraft server to start automatically.
Is PowerupStack suitable for public Minecraft servers?
Yes.
Start-on-connect is useful for public servers because a new player can trigger server startup without needing access to the hosting panel.
PowerupStack also provides unlimited player slots and 3 GB included RAM on its free tier.
Which free Minecraft host is best for Asia?
PowerupStack currently provides free Minecraft hosting in Singapore, making it the most geographically relevant option in this comparison for many Southeast Asian players.
Which free Minecraft host is best for Australia?
PowerupStack currently offers free Minecraft hosting in Australia.
It is the only provider in this comparison with a free Australian region.
Final thoughts
Aternos remains an excellent free Minecraft hosting provider in 2026.
It is established, reliable, and particularly strong for Minecraft mods, modpacks, and server software.
The best Aternos alternative depends on what you want to improve.
Choose PowerupStack if you want 3 GB included RAM, start-on-connect, unlimited player slots, no third-party advertisements, and multiple free hosting regions. Its automatic startup system can be useful for both private servers and public communities because any player can trigger server startup simply by connecting.
Choose Aternos if you prioritize an established free hosting platform with strong mod and modpack support.
Choose FalixNodes if you want 10 GB storage, unlimited slots, and strong customization options.
Choose Minehut if you are building a public Minecraft server and want access to an existing network of players, while accepting its 1 GB RAM and 10-player free-tier limits.
Ultimately, the best free Minecraft host is the one whose limitations have the least impact on how you and your community actually play.