Test Propeller

Spin up test dependencies in milliseconds

Turbocharge tests that use real dependencies by restoring pre-warmed containers. Use one of our 140+ pre-warmed container images of databases, queues, browsers; or snapshot your own.

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~/quickstart.sh

# Install the Test Propeller CLI curl https://testpropeller.com/install.sh | bash

# Interactive log in

# Restore an Elasticsearch pre-warmed container CONTAINER=$(tp restore --timeout 30s testpropeller/elasticsearch:9.3.0)

# Expose the API on an unused port PORT=$(tp expose-port $CONTAINER 9200)

# Access your container running on a servlerless agent curl "http://localhost:$PORT"

A letter from the founder

Here's the thing, shipping reliable software requires

testing against real dependencies, not just mocks.

Stubs are fast, but not realistic.

Shared environments are fast, but not isolated.

Testcontainers are realistic and isolated, but painfully slow to start.

I got tired of settling for "good enough." I wanted all three: realism, isolation, and speed.

That's why I built Test Propeller.

Pre-warmed containers give you confidence in your integration tests without breaking your flow.

Dennis Krasnov

Founder, Test Propeller

Launch Elasticsearch 12x faster than Testcontainers

2482ms until healthy

391ms until healthy, cold starts take longer due to disk access

Simple and Predictable Pricing

Personal

Free forever

No credit card required.

Start for free

What You Get

monthly credits

No credit rollover

Community support

Team

per month

What You Get

monthly credits

% bonus

2 month credit rollover

Community, email support

Enterprise

Custom to fit your needs

Build the perfect plan for your organization.

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What You Get

Custom monthly credits

Custom credit rollover

Community, priority email, slack support

White-glove onboarding and training

Security questionnaires

Issued monthly.

Issued monthly. Automatic volume discount vs. top-ups.

Issued monthly. Negotiated amount and volume discount vs. top-ups.

Monthly credits are valid for 30 days.

Monthly credits are valid for 90 days, so long as you're subscribed.

Monthly credits are valid for 90+ days, so long as you're subscribed.

Deploy and maintain agents by yourself.

Item	Cost
Run container	1 credit
Snapshot container	1 credit
Restore container	1 credit / GB restored
Self-hosted agent	1 credit / hour
Test Propeller serverless agent	25 credits / GB RAM / minute

Running out of credits? Top up at any time

Pay once, without upgrading your plan. Top-up credits never expire and are consumed after monthly credits run out.

per credit

Buy credit package

Frequently Asked Questions

Are there any limits?: Nope. Unlimited users. Unlimited parallelism. That's the beauty of prepaid credits.
Do I need to configure access to an OCI registry?: It depends. You can restore public snapshots maintained by Test Propeller without setting up access to an OCI registry. To run private container images you'll need to configure access to your OCI registry. You can snapshot a container without an OCI registry, but to share that snapshot with other agents your organization you'll need to configure access to your OCI registry.
What happens when my credits run out?: After a short synchronization delay, your API keys will deactivate. You'll no longer be able to run containers, snapshot containers, and restore snapshots. You'll still be able to stop containers and delete snapshots. Test Propeller credits are prepaid, so you won't incur runaway overage fees leading to suprise bills.
How do I ensure I don't run out of credits?: Subscribe to a plan that has enough included monthly credits for your typical usage. Buy top-up credits in advance to cover for months with abnormally high usage. Keep an eye on your remaining credits in the Test Propeller dashboard or with the tp credit ls CLI command. You'll be notified by email when your credits are running low.
What payment methods do you accept?: We accept credit cards, debit cards, digital wallets, bank redirects, and bank transfers. Prices are in USD and you'll be billed in your local currency.
What's the refund policy?: Refunds are available within 30 days of purchase. A full refund may be granted if none of the credits have been used. A partial refund may be granted if a small portion of the credits have been used, at our discretion. Contact us to discuss refund options.