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Freestyle Sandboxes

Ranked 4 of 12 cloud sandboxes by recommenders

Recommended for full Debian VMs that pause, resume and fork quickly for AI coding agents; critics mainly flag a slow dashboard and unclear pricing.

Recommended for full Debian VMs that pause, resume and fork quickly for AI coding agents; critics mainly flag a slow dashboard and unclear pricing.

28 people gave an opinion

recommend it
20
criticize it
8
approval share
71%
Each figure is one person. RecommendsCriticizes

Recommended in 2 of 13 months

  1. November 2025: not recommended
  2. December 2025: not recommended
  3. January 2026: not recommended
  4. February 2026: not recommended
  5. March 2026: not recommended
  6. April 2026: recommended
  7. May 2026: not recommended
  8. June 2026: not recommended
  9. July 2026: not recommended
  10. August 2026: not recommended
  11. September 2026: recommended
  12. October 2026: not recommended
  13. November 2026: not recommended (month in progress)

Why it doesn’t carry the badge

  • 20 people recommend itNeeds 10 or more, met.
  • 2.5 recommenders for every criticNeeds 2 to 1 or better, met.
  • Recommended in 2 of 13 monthsNeeds 4 or more, not met.

The same three rules apply to every product, and the badge can’t be bought. How the badge works

What people say about it

The reasons people give, with the number of comments that give each one. Open a reason to read what they said.

Why people recommend it

Each mark is one comment

  • Fast forking and snapshots

    “Whats especially cool about this approach is not only is fork time O(1) with respect to machine size”

    Comment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

    “fork, advanced templating, and IMO a better debugging experience because of our structure”

    Comment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

    “This is awesome - the snapshotting especially is critical for long running agents.”

    Comment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”
  • Pause and resume VM state

    “We'll pause your VM and when you come back the processes will be in the exact same state as when you left.”

    Comment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

    “Resuming a freestyle VM with claude code in it will just work.”

    Comment from 7 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”
  • Full Linux VMs with Docker

    “Freestyle VMs are full Debian machines, with support for sysd, docker in docker, multiple users, hardware virtualization etc.”

    Comment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

    “Yes! You can def run something like K3s in these VMs.”

    Comment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”
  • Clean, developer-friendly UI

    “I like Freestyle's cool UI that shows off the unique technical approach and developer friendliness”

    Comment from 7 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

    “Your UI design is really nice.”

    Comment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

What people warn about

Each mark is one comment

  • Slow dashboard tab switching

    “Switching tabs in the Dashboard (Domains/Routes/etc.) was basically unusable about 4 hours ago.”

    Comment from 7 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

    “your web app is so extremely slow, it takes up to 30+ seconds to move from one tab to the next”

    Comment from 7 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”
  • Unclear or hard-to-estimate pricing

    “if you are the middleman platform then it's sure gonna get expensive for the end user”

    Comment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

    “your pricing page suggests that that is not available without a subscription”

    Comment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

    “doesn't seem very easy to calculate how much it would cost per month”

    Comment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”
  • Product explanation is too abstract

    “I think the product is probably great, but you need to improve the communication, it's too abstract.”

    Comment from 7 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

    “Maybe I’m just stupid, but I don’t know what this means.”

    Comment from 7 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”
  • Narrow use case, limited concurrency

    “it’s a very specific, narrow use case”

    Comment from 7 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

    “50 concurrent VMs is not a lot.”

    Comment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

Other cloud sandboxes people recommend

The four most recommended other cloud sandboxes, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.

Freestyle Sandboxes compared with 4 alternatives
ProductRecommendCriticizeApprovalMonthsOwnedBadge
Sprites583066%113 mo4 owners—
E2B23485%9—Approved
Deno Sandbox21970%4—Approved
Freestyle SandboxesThis page20871%2——
Agent3715288%3——
See all 12 cloud sandboxes, ranked

What people said

40 of the 41 comments that mention it, newest first. Each links to the original comment.

“Players join a shared screen from their phones, submit their verses from a set of helper prompts”

RecommendsComment from 14 Sep 2026 in “Ask HN: What are you working on? (September 2026)”

“Forking full VM memory mid-exec is taking it to another level entirely.”

RecommendsComment from 7 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“I like Freestyle's cool UI that shows off the unique technical approach and developer friendliness”

RecommendsComment from 7 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“Switching tabs in the Dashboard (Domains/Routes/etc.) was basically unusable about 4 hours ago.”

MixedComment from 7 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“I am not sure why we should use this instead of the standard VM's”

MixedComment from 7 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“I love that you do VM configuration using `with`.”

RecommendsComment from 7 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“I think the product is probably great, but you need to improve the communication, it's too abstract.”

MixedComment from 7 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“Resuming a freestyle VM with claude code in it will just work.”

RecommendsComment from 7 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“your web app is so extremely slow, it takes up to 30+ seconds to move from one tab to the next”

CriticizesComment from 7 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“our first response is an order of magnitude ahead of theirs”

RecommendsComment from 7 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“it’s a very specific, narrow use case”

MixedComment from 7 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“I would actually imagine this would be useful for observably”

RecommendsComment from 7 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“We believe to build the sandboxes for coding agents you also need to provide git repos for them”

RecommendsComment from 7 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“Maybe I’m just stupid, but I don’t know what this means.”

MixedComment from 7 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“The forking you provided adds a lot more speed.”

RecommendsComment from 7 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“still quite useful win for browser control usecases and also for debugging their crashes”

RecommendsComment from 7 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“However, I think this is potentially unrealistic.”

MixedComment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“There's nothing wrong with offering services that people find useful.”

RecommendsComment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“I appreciate what seems to be genuine excitement on your part of having built something cool”

RecommendsComment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“that does sound pretty impressive then”

RecommendsComment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“Try it — you can definitely see it working on free tier.”

RecommendsComment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“I don't find "large and powerful" in reference to a VM to sound compelling.”

CriticizesComment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“Freestyle VMs are full Debian machines, with support for sysd, docker in docker, multiple users, hardware virtualization etc.”

RecommendsComment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“50 concurrent VMs is not a lot.”

MixedComment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“Yes! You can def run something like K3s in these VMs.”

RecommendsComment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“your pricing page suggests that that is not available without a subscription”

CriticizesComment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“Your UI design is really nice.”

RecommendsComment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“Non open source and non local SAAS sandboxes are offensive to even try to launch.”

CriticizesComment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“the bare metal setup is like out of the world”

RecommendsComment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“it makes a ton of sense when explained”

RecommendsComment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“We'll pause your VM and when you come back the processes will be in the exact same state as when you left.”

RecommendsComment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“This is awesome - the snapshotting especially is critical for long running agents.”

RecommendsComment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“if you are the middleman platform then it's sure gonna get expensive for the end user”

CriticizesComment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“doesn't seem very easy to calculate how much it would cost per month”

CriticizesComment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“your product makes a lot of sense for a wide variety of users and businesses”

RecommendsComment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“fork, advanced templating, and IMO a better debugging experience because of our structure”

RecommendsComment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“Freestyle is the only provider of the above that gives users access to the boot disk”

RecommendsComment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“Your pricing page is broken”

CriticizesComment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“Whats especially cool about this approach is not only is fork time O(1) with respect to machine size”

RecommendsComment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

“I've been using your API for running sandboxed JS. Nice to see you also support VMs now.”

RecommendsComment from 6 Apr 2026 in “Launch HN: Freestyle: Sandboxes for AI Coding Agents”

Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.