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Developer Tools · head to head

CodeSandbox vs Dragonfly

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CodeSandbox

Developer Tools

Cloud platform for instant, isolated development sandboxes and code execution

From
Free
Free plan
Yes
Visit CodeSandboxFull review
Dragonfly logo

Dragonfly

Databases

High-performance Redis-compatible in-memory datastore with 25x better throughput

From
Free
Free plan
Yes
Visit DragonflyFull review

The short version

  • Dragonfly is a modern in-memory data store.
  • CodeSandbox is free; Dragonfly starts at $2000/mo.
  • Only CodeSandbox lists instant sandboxes; only Dragonfly lists redis API compatibility.
  • Where CodeSandbox falls short: public sandboxes are visible to others by default, which is not ideal for proprietary code.
  • Where Dragonfly falls short: flex tier starting at $36/month may be underpriced, requiring careful usage monitoring.
  • Prices and features on this page were last checked on 29 August 2026.

Where they differ

Only the attributes on which CodeSandbox and Dragonfly actually diverge.

Attributes where CodeSandbox and Dragonfly differ
AttributeCodeSandboxDragonfly
Pricing modelFreemiumUsage-based cloud pricing with flexible tiers
PlatformsWeb, APIWeb, AWS, GCP, Azure
CategoryDeveloper ToolsDatabases

Identical on both: starting price (Free), free tier (Yes).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in CodeSandbox

  • Instant sandboxes
  • Programmatic sandbox API
  • Secure isolated execution
  • Browser-based editor
  • CI/CD sandbox support
  • Scalable VM infrastructure

Only in Dragonfly

  • Redis API compatibility
  • Thread-per-core architecture
  • High-performance caching
  • Memory efficiency
  • Real-time leaderboards
  • Message queue support
  • ML feature serving
  • Cloud deployment

What people use each for

The jobs each tool is most often brought in to do.

CodeSandbox

  • Running AI agent-generated code safely in isolationnot Dragonfly
  • Prototyping and sharing web projects in-browsernot Dragonfly
  • Executing untrusted code for a code playground productnot Dragonfly
  • Using sandboxes as ephemeral CI/CD build environmentsnot Dragonfly

Dragonfly

  • High-throughput caching for web applicationsnot CodeSandbox
  • Real-time leaderboards and rankingsnot CodeSandbox
  • Message queue and event processingnot CodeSandbox
  • ML model feature serving at millisecond latenciesnot CodeSandbox
  • Gaming session state and player data storagenot CodeSandbox

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

CodeSandbox

  • Focus has shifted toward programmatic sandbox infrastructure, which may be less approachable for casual users just wanting a quick online editor
  • Public sandboxes are visible to others by default, which is not ideal for proprietary code

Dragonfly

  • Flex tier starting at $36/month may be underpriced, requiring careful usage monitoring
  • Business tier $2,000/month represents significant jump in cost
  • Limited to in-memory storage, not suitable for cold data or archival
  • Bring-your-own-cloud requirement on Business tier adds operational complexity
  • Cloud availability dependent on AWS/GCP/Azure uptime

Pricing, plan by plan

CodeSandbox

Free
  • FreeFree
    • Public sandboxes
    • Basic sandbox usage

Dragonfly

Free
  • Free TierFree
    • 100 cloud credits for new signups
    • Equivalent to free trial
  • Business$2,000/mo
    • Starting price for enterprise offering
    • Bring-your-own-cloud deployment
    • Auto-scaling with custom SLAs
  • EnterpriseOn request
    • Custom pricing
    • Any-cloud deployment
    • Custom instances and sizing

Which should you pick?

Choose CodeSandbox if

  • You need instant sandboxes.
  • You want to start without paying.
  • You work on Web, API.
  • You also want programmatic sandbox api.
CodeSandbox review

Choose Dragonfly if

  • You need redis api compatibility.
  • You want to start without paying.
  • You work on Web, AWS, GCP, Azure.
  • You also want thread-per-core architecture.
Dragonfly review

Questions people ask

Is CodeSandbox or Dragonfly better?
Neither clearly leads. CodeSandbox starts at Free and Dragonfly at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, CodeSandbox or Dragonfly?
CodeSandbox starts at Free and Dragonfly at Free.
Does CodeSandbox or Dragonfly run on more platforms?
CodeSandbox runs on Web, API. Dragonfly runs on Web, AWS, GCP, Azure.
Can I use CodeSandbox for free?
Both have a free tier, so you can try either at no cost before committing.
What is CodeSandbox best used for?
CodeSandbox is most often used for running ai agent-generated code safely in isolation, prototyping and sharing web projects in-browser, executing untrusted code for a code playground product, using sandboxes as ephemeral ci/cd build environments. Of those, running ai agent-generated code safely in isolation and prototyping and sharing web projects in-browser are not what Dragonfly is typically brought in for.
What can CodeSandbox do that Dragonfly cannot?
CodeSandbox covers Instant sandboxes, Programmatic sandbox API, Secure isolated execution, Browser-based editor. Dragonfly covers Redis API compatibility, Thread-per-core architecture, High-performance caching, Memory efficiency.

Answered from the vendors’ own pages

CodeSandbox: Does CodeSandbox offer a free tier?

Yes, CodeSandbox offers a free option available on the platform. Users can start for free.

Source
Dragonfly: How much faster is Dragonfly than Redis?

Dragonfly achieves 3.97M queries per second compared to Redis's 718K QPS, representing a 25x improvement. Memory efficiency is also 30% better.

Source
CodeSandbox: Where can I find CodeSandbox's pricing details?

CodeSandbox maintains a dedicated pricing page, but specific tier names, feature breakdowns, and costs are not displayed on the landing page.

Source
Dragonfly: Can I migrate from Redis to Dragonfly without code changes?

Yes. Dragonfly maintains full API compatibility with Redis and Memcached, allowing drop-in replacement with minimal to no code modifications.

Source
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